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E.F. Johnson Company Summit DM 975x Service Manual

Manual is about: 800 or 900 MHz

Summary of Summit DM 975x

  • Page 1

    Fifth printing december 2000 supersedes 001-9750-005, 2/97 s ummit ® dm 975 x /977 x 800 or 900 mh z m obile r adio multi-net ® ii 13.6 vdc, 15 or 30 watts part no. 242-97xx-111 multi-net ® ii mobile service manual.

  • Page 2: Multi-Net

    Multi-net ® summit ® dm 975x/977x 800/900 mhz trunked radio 13.6 vdc, 15 or 30/35 watts, fm 806-821 mhz tx, 851-866 mhz rx (975x) 896-902 mhz tx, 935-941 mhz rx (977x) part no. 242-97xx-111 copyright © 2000 by the e.F. Johnson company the e.F. Johnson company designs and manufactures two-way radio e...

  • Page 3

    Table of contents i revised december 2000 part no. 001-9750-007 table of contents 1 general information 1.1 scope of manual . . . . . . . . . . . . . . . . . . . . 1-1 1.2 equipment description . . . . . . . . . . . . . 1-1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 ...

  • Page 4

    Table of contents (cont’d) ii revised december 2000 part no. 001-9750-007 profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 power turn-off delay . . . . . . . . . . . . . . . . . . . 3-15 emergency ...

  • Page 5

    Table of contents (cont’d) iii revised december 2000 part no. 001-9750-007 radio network terminal (rnt) . . . . . . . . . . . . 5-2 dispatch consoles . . . . . . . . . . . . . . . . . . . . . . . 5-2 public switched telephone network (pstn) . . 5-2 5.2 definitions of multi-net terms . . . . 5-3 5.3 ...

  • Page 6

    Table of contents (cont’d) iv revised december 2000 part no. 001-9750-007 identifying smd resistors . . . . . . . . . . . . . . . . . 7-5 smd capacitor identification . . . . . . . . . . . . . . 7-6 smd inductor identification . . . . . . . . . . . . . . . 7-7 transistor/diode identification . . . ....

  • Page 7

    Table of contents (cont’d) v revised december 2000 part no. 001-9750-007 appendix b universal digital and data interface b.1 general information . . . . . . . . . . . . . . B-1 scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 universal interface description . . . . . . . ....

  • Page 8

    1-1 revised february 1997 part no. 001-9750-005 general information section 1 general information 1.1 scope of manual this service manual contains installation, opera- tion, programming, alignment, and service information for the e.F. Johnson summit ® dm 975x and 977x transceivers. Note: the 900 mhz...

  • Page 9

    General information 1-2 revised february 1997 part no. 001-9750-005 the remote control unit uses the same front panel assembly that is used on front mount transceivers. Therefore, it operates the same as a front-mount trans- ceiver. A remote conversion kit is available which converts the front panel...

  • Page 10

    General information 1-3 revised february 1997 part no. 001-9750-005 the 15w external speaker. The remote control unit kit includes the summit dm control unit, remote pigtail cable, and 17-ft. Control cable. A microphone is not included. Dual transceiver controls are provided by connecting this contr...

  • Page 11

    General information 1-4 revised february 1997 part no. 001-9750-005 table 1-2 e.F. Johnson multi-net transceivers transceiver freq (mhz) type power output system/ groups [1] m-net/ltr/ conv operation; conv talk-around special features 8160 avenger sk 800 portable 1 & 3w 14/11 yes small size, qk sel ...

  • Page 12

    General information 1-5 revised february 1997 part no. 001-9750-005 control station power supply - the 11-ampere versions are used with the 15-watt transceivers only, and the 15-ampere models can be used with all models. The transceiver slides into the power supply housing and receives power from ba...

  • Page 13

    General information 1-6 revised february 1997 part no. 001-9750-005 charge by calling the repair lab (see section 1.7) or by requesting them when you send a unit in for repair. Clearly describe the difficulty experienced in the space provided and also note any prior physical damage to the equipment....

  • Page 14

    General information 1-7 revised february 1997 part no. 001-9750-005 summit ® dm 975x (800 mhz) specifications the following are general specifications intended for use in testing and servicing this transceiver. For current advertised specifications, refer to the specification sheet available from th...

  • Page 15

    General information 1-8 revised february 1997 part no. 001-9750-005 summit ® dm 977x (900 mhz) specifications the following are general specifications intended for use in testing and servicing this transceiver. For current advertised specifications, refer to the specification sheet available from th...

  • Page 16

    2-1 revised february 1997 part no. 001-9750-005 installation figure 2-1 97xx front mount installation components item no. Description part no. Item no. Description part no. 1 amplified dynamic mic 250-0740-310 7 self-drilling screw (4) 575-9077-565 2 screw, 4-20 x 5/8” thread frmg (3) 575-5604-020 8...

  • Page 17

    Installation 2-2 revised february 1997 part no. 001-9750-005 2.1.3 transceiver programming the transceiver needs to be programmed before it is placed in service unless it was ordered as factory programmed. Programming instructions are located in section 4. Transceivers not factory programmed are shi...

  • Page 18

    Installation 2-3 revised february 1997 part no. 001-9750-005 figure 2-2 accessory jack then splice it using the included butt splice connec- tors. You may also need to cut the cable if it must be routed through the firewall and there is no opening large enough to clear the fuseholder. If a hole is d...

  • Page 19

    Installation 2-4 revised february 1997 part no. 001-9750-005 pin 1 back in to the internal speaker connected to pin 3. The other internal speaker terminal is internally connected to pin 2. External speaker with front-mount transceivers, 4-ohm, 15-watt external speaker, part no. 250-0151-006, or equi...

  • Page 20

    Installation 2-5 revised february 1997 part no. 001-9750-005 figure 2-3 remote mount installation components 2.5 remote control unit installation 2.5.1 setting programming switches the remote control unit does not require any programming by the computer setup described in section 4. However, there a...

  • Page 21

    Installation 2-6 revised february 1997 part no. 001-9750-005 program special configurations, refer to the informa- tion which follows. The location of these switches is shown in figure 2-4. Note: in the following information, an asterisk (*) indicates the factory default setting. Iic driver u102 con...

  • Page 22

    Installation 2-7 revised february 1997 part no. 001-9750-005 figure 2-4 remote control unit programming switches keypad and knob disable (s101-1, 2) s101-1 s101-2 select knob enabled off --- select knob disabled on --- keypad enabled --- off keypad disabled --- on s101-1 can be used to disable the s...

  • Page 23

    Installation 2-8 revised february 1997 part no. 001-9750-005 c. Install the microphone hanger in a convenient loca- tion using the screws for sheet metal or plastic. The hanger must be connected to chassis ground for proper operation of functions such as monitoring and scan. If required, ground the ...

  • Page 24

    Installation 2-9 revised february 1997 part no. 001-9750-005 2.7 installing dc noise filter kit the dc noise filter kit is available as a field or factory installed option as described in section 1.5. This kit contains filter choke, part no. 542-5010-005, which is installed in the main 13.8-volt lin...

  • Page 25

    Installation 2-10 revised february 1997 part no. 001-9750-005 2.8 transceiver mounting tray installation 2.8.1 description optional transceiver locking tray, part no. 585- 7000-185, is a lockable mounting bracket for summit dm transceivers and other transceivers that use that chassis. This bracket p...

  • Page 26

    3-1 revised february 1997 part no. 001-9750-005 operation section 3 operation 3.1 features note: system operator programming determines the availability of some of the preceding features. General features • up to 32-100 systems programmable (the maximum varies with type and no. Of groups) • each sys...

  • Page 27

    Operation 3-2 revised february 1997 part no. 001-9750-005 figure 3-1 front panel controls transmit indicator microphone ptt switch display option switches (6) mic jack on-off/volume select switch speaker optional dtmf display. In addition, the return time can be programmed for 1-15 seconds or infini...

  • Page 28

    Operation 3-3 revised february 1997 part no. 001-9750-005 3.2.2 display backlight - the display has a backlight which can be programmed to automatically turn on with transceiver power or it can be controlled manually by the bklht option switch or menu mode “backlight” parameter (see section 3.5.5). ...

  • Page 29

    Operation 3-4 revised february 1997 part no. 001-9750-005 3.3 operating modes 3.3.1 introduction each selectable system can be programmed with a unique set of transceiver operating parameters. One of these parameters is the operating mode which can be multi-net, ltr, or conventional. The type or typ...

  • Page 30

    Operation 3-5 revised february 1997 part no. 001-9750-005 block up to all 225 (m-net) --- up to all 250 (ltr) --- groups each group switch position selects one of the selectable id codes. Only the selected id code is encoded when transmitting because it is not possible to encode more than one code. ...

  • Page 31

    Operation 3-6 revised february 1997 part no. 001-9750-005 table 3-1 multi-net standard and special call receive priority interrupting call call in progress standard group intercon- nect auxiliary interro- gate kill reassign emer- gency all call standard group [1] [1] [1] yes yes yes yes yes intercon...

  • Page 32

    Operation 3-7 revised february 1997 part no. 001-9750-005 if ltr or conventional systems are also programmed, they are skipped in the scan sequence because only multi-net systems are scanned. If an attempt is made to enter scanning on with an ltr or conventional system displayed, scanning can be sel...

  • Page 33

    Operation 3-8 revised february 1997 part no. 001-9750-005 with a fixed transmit system/group as described in section 3.4.5. The three programmable configurations are as follows: last selected system/group - transmissions always occur on the system/group that was last selected by the select switch. T...

  • Page 34

    Operation 3-9 revised february 1997 part no. 001-9750-005 table 3-2 menu mode and option switch functions function menu item option switch switch label function menu item option switch switch label a/d (scn list prg) x a/d ltr system search x auto-registration x menu mode select x menu auxiliary 1 x...

  • Page 35

    Operation 3-10 revised february 1997 part no. 001-9750-005 if the transceiver is equipped with a menu option switch, the menu mode can also be selected to control various functions. The functions that can be controlled by the menu mode are indicated in table 3-2 by an “x” in the “menu item” column. ...

  • Page 36

    Operation 3-11 revised february 1997 part no. 001-9750-005 3.5.7 call guard squelch disable the cg option switch is used to disable both transmit and receive call guard squelch on the selected conventional system/group (if it has been programmed). It does not affect call guard squelch operation on o...

  • Page 37

    Operation 3-12 revised february 1997 part no. 001-9750-005 3.5.18 radio sounds the menu mode “radio snds” parameter selects the tones that are heard when switches are pressed or busy or out-of-range conditions exist. If this menu item is not enabled, the tones that sound are fixed by system operator...

  • Page 38

    Operation 3-13 revised february 1997 part no. 001-9750-005 vehicle. To turn this indicator off, change any front panel control, take the microphone off-hook, press the ptt switch, or turn power off and then on again. The call indicator operates in both the scan and non-scan modes. It is disabled dur...

  • Page 39

    Operation 3-14 revised february 1997 part no. 001-9750-005 on) but does not automatically turn back on again when the ignition switch is turned off. Therefore, it must be manually turned on after starting the vehicle. Power switch - the current horn alert mode does not change when power is turned on...

  • Page 40

    Operation 3-15 revised february 1997 part no. 001-9750-005 to initiate changing from one bank to another, the bank option switch or menu mode “bank selct” parameter is used. The select switch is then turned to move to the desired bank and pressed to select that bank. The current bank is identified b...

  • Page 41

    Operation 3-16 revised february 1997 part no. 001-9750-005 gency system/group every 10 seconds using access priority 1. When the emergency call is received by the dispatcher, a warning tone sounds and the mobile's unique id and other information is displayed on the console. The dispatcher then ackno...

  • Page 42

    Operation 3-17 revised february 1997 part no. 001-9750-005 group (by dealer programming or the user), the circle/ triangle symbol shown in figure 3-3 is displayed. If the transceiver has version 206 or earlier soft- ware (see appendix a), encryption must be enabled to transmit or receive an encrypte...

  • Page 43

    Operation 3-18 revised february 1997 part no. 001-9750-005 3.6.14 display of software version when transceiver power is turned on, the trans- ceiver software version number and other information is briefly displayed as shown in the following illustra- tion. Currently, all summit transceivers are tie...

  • Page 44

    Operation 3-19 revised february 1997 part no. 001-9750-005 3.7.2 auto-registration (multi-net) introduction auto-registration is also described briefly in section 5.8.12. This feature permits telephone and unique id calls to be automatically routed to the site in which a mobile is operating. Standar...

  • Page 45

    Operation 3-20 revised february 1997 part no. 001-9750-005 • the transceiver can exit a site while receiving a call, register on a new site, and then continue receiving the call on the new site. • a call can be received on a new site before registration occurs. 3.7.3 transmitting status information ...

  • Page 46

    Operation 3-21 revised february 1997 part no. 001-9750-005 special call authorization when a mobile is programmed to make intercon- nect calls, system authorization is needed before service is available. This authorization is performed by the system operator using the system management module of the...

  • Page 47

    Operation 3-22 revised december 2000 part no. 001-9750-007 landside-originate special calls calls can be also be made from any landside tele- phone to specific mobiles (interconnect calls) or groups (directed group calls). Calls can also be placed to other sites in a manner similar to when they are ...

  • Page 48

    Operation 3-23 revised february 1997 part no. 001-9750-005 3.8 ltr mode features 3.8.1 free system ringback if a busy condition exists when making an ltr telephone call, the free system ringback feature auto- matically signals when the system is no longer busy. If the busy tone sounds and “system bs...

  • Page 49

    Operation 3-24 revised february 1997 part no. 001-9750-005 3.9.2 call guard squelch tone (ctcss), digital, or inverted digital call guard squelch can be programmed on each conven- tional transmit and receive group in any order desired. A tone call guard reverse burst and digital call guard turn-off ...

  • Page 50

    Operation 3-25 revised february 1997 part no. 001-9750-005 disabled at the system level). Talk-around is then enabled by simply selecting one of those groups. The unique identification can be used to identify which groups are programmed with this feature. If talk-around has not been disabled on the ...

  • Page 51

    Operation 3-26 revised february 1997 part no. 001-9750-005 access attempts are then made until the push-to-talk switch is released and then pressed again. • if this tone sounds after the transmitter has been keyed for an extended time and the transmitter turns off and “tx timeout” is displayed, the ...

  • Page 52

    Operation 3-27 revised february 1997 part no. 001-9750-005 auto reg - indicates that the transceiver is attempting to register on another system. Refer to “auto-registration” description on section 3.7.2. Block call - indicates that the call is being received on a multi-net or ltr block id code (ref...

  • Page 53

    Operation 3-28 revised february 1997 part no. 001-9750-005 sngle scan - indicates that the single-site type of scanning is occurring (refer to section 3.4.2. Summit 8 or 9 v 2xx x - this message is displayed for an instant when transceiver power is turned on. “summit” is the model of the transceiver...

  • Page 54

    Operation 3-29 revised february 1997 part no. 001-9750-005 800 mhz test frequencies prog ch no. Rx freq tx freq block 0 001 851.0125 mhz 806.0125 mhz 381 860.5125 mhz 815.5125 mhz 920 869.9875 mhz 824.9875 mhz 004 [ta] 851.0875 mhz 851.0875 mhz 379 [ta] 860.4625 mhz 860.4625 mhz 918 [ta] 869.9625 mh...

  • Page 55

    Operation 3-30 revised february 1997 part no. 001-9750-005 microphone audio, data, and the receiver are all disabled by this function. Power is adjusted by rotating the select switch with the ptt switch pressed. The display indicates the relative set point from 0-127 (127 is maximum power). To exit ...

  • Page 56

    4-1 revised december 2000 part no. 001-9750-007 transceiver programming section 4 transceiver programming figure 4-1 programming setup remote programming interface (rpi) to battery to antenna to ign sense cable part no. 023-9750-005 part no. 023-9800-000 4.1 general 4.1.1 programming setup the follo...

  • Page 57

    Transceiver programming 4-2 revised december 2000 part no. 001-9750-007 with summit dm and viking ® ht/gt trans- ceivers, the switch on the rpi selects either the stan- dard or flash programming mode. The indicator is green when the standard mode is selected and red when the flash mode is selected. ...

  • Page 58

    Transceiver programming 4-3 revised december 2000 part no. 001-9750-007 to unpack these files so that they can be used, first make sure that the current directory is destination directory for these files. For example, if hard drive c: is the destination, make it the current directory (if required) b...

  • Page 59

    Transceiver programming 4-4 revised december 2000 part no. 001-9750-007 figure 4-2 programming software menu structure.

  • Page 60

    Transceiver programming 4-5 revised december 2000 part no. 001-9750-007 f2 (help screen) - displays help information on the displayed screen. F3, f8 - not used. F4 - f6 - use varies according to the screen that is se- lected. Refer to the separate screen descriptions for more information. F7 - when ...

  • Page 61

    Transceiver programming 4-6 revised december 2000 part no. 001-9750-007 ously loaded from disk as described in the preceding section or from a transceiver as described in the next section. If there is no file currently in memory, a message is displayed. This function displays the modify radio file m...

  • Page 62

    Transceiver programming 4-7 revised december 2000 part no. 001-9750-007 tory are listed and then the arrow and return keys are used to select the file. When copying a file, it must be given a new name and/or destination in the destina- tion box. The screen displayed by this function follows. 4.3 mod...

  • Page 63

    Transceiver programming 4-8 revised december 2000 part no. 001-9750-007 an on-off indicator is available in the display for only the first three keys. Since some functions require this indicator, they are not displayed for the keys that do not have an indicator. Refer to section 3.5 for more informa...

  • Page 64

    Transceiver programming 4-9 revised december 2000 part no. 001-9750-007 figure 4-5 define option buttons screen figure 4-6 setup menu functions screen.

  • Page 65

    Transceiver programming 4-10 revised december 2000 part no. 001-9750-007 ptt tone delay programming screen linking systems to a bank a system can be linked to a previously created bank from the create/edit system screen as follows or from the create/edit bank screen described in section 4.3.6. To do...

  • Page 66

    Transceiver programming 4-11 revised december 2000 part no. 001-9750-007 system programming screen (see section 4.3.5) or the create/edit bank screen. Systems are identified by alpha tags, and numbers are assigned when a system is linked to a bank. Different system numbers can be assigned in each ba...

  • Page 67

    Transceiver programming 4-12 revised december 2000 part no. 001-9750-007 with ltr systems, they can also be assigned arbitrarily. However, for maximum system efficiency, a scheme should be used which equalizes, as much as possible, the gaps between numbers. For example, a five-repeater system should...

  • Page 68

    Transceiver programming 4-13 revised december 2000 part no. 001-9750-007 4.4.6 wide area group tracking programming when wide area group tracking is enabled with multi-net auto-registration (see section 3.7.2), the same group remains selected when auto-registration on another system occurs. This all...

  • Page 69

    Transceiver programming 4-14 revised december 2000 part no. 001-9750-007 or have questions about accessing the aces system, call 800-328-3911, extension 7 (usa and canada) or 507-835-6222, extension 2100 (international). 4.6.2 programming files the files required to flash program a transceiver are c...

  • Page 70

    Transceiver programming 4-15 revised december 2000 part no. 001-9750-007 can be programmed and configurations that can be selected for each are described in the following infor- mation. Since the specific configuration of these parameters is determined by the equipment being used, detailed programmi...

  • Page 71

    Transceiver programming 4-16 revised december 2000 part no. 001-9750-007 figure 4-10 system universal interface screen 4.7.3 system parameters screen there are also two parameters that can be different for each system. These parameters are programmed using the system universal interface options scre...

  • Page 72

    Transceiver programming 4-17 revised december 2000 part no. 001-9750-007 table 4-1 main radio parameters screen parameter acceptable responses description receive delay time 0, 1, 2, 3, 4, 5, 6, or 7 seconds time before scanning resumes after a message is received (section 3.4.3). Call delay time 0,...

  • Page 73

    Transceiver programming 4-18 revised december 2000 part no. 001-9750-007 parameter acceptable responses description select knob return time 0-15 seconds in 1-sec steps programs the delay after a change is made before the bar returns to the default display programmed above. “0” programs no return. Th...

  • Page 74

    Transceiver programming 4-19 revised december 2000 part no. 001-9750-007 parameter acceptable responses description offset yes, no programs if channels are offset 12.5 khz on the low side. This applies to channels 1-600 only (section 4.4.2). Home repeater number 1-30 programs the number of the home ...

  • Page 75

    Transceiver programming 4-20 revised december 2000 part no. 001-9750-007 multi-net group parameters (the group parameter screen is selected by pressing f6) parameter acceptable responses description asn yes, no specifies if the group will be selectable. Alpha tag a-z, 0-9, etc. Specifies the 10-char...

  • Page 76

    Transceiver programming 4-21 revised december 2000 part no. 001-9750-007 table 4-3 ltr system parameters parameter acceptable responses description alpha tag any keyboard character changes the 10-character alpha tag for the selected system. The system alpha tag is used only for programming and is no...

  • Page 77

    Transceiver programming 4-22 revised december 2000 part no. 001-9750-007 parameter acceptable responses description horn yes, no programs if the horn sounds when a call is received on that id code (sec- tion 3.6.4). Encrypt yes, no programs if encryption is used on calls received on that id code (se...

  • Page 78

    Transceiver programming 4-23 revised december 2000 part no. 001-9750-007 table 4-4 conventional system parameters parameter acceptable responses description alpha tag any keyboard character changes the 10-character alpha tag for the selected system. The system alpha tag is used only for programming ...

  • Page 79

    Transceiver programming 4-24 revised december 2000 part no. 001-9750-007 conventional group parameters (the group parameter screen is selected by pressing f6) parameter acceptable responses description asn yes, no specifies if the group will be selectable. Alpha tag a-z, 0-9, etc. Specifies the 10-c...

  • Page 80

    Transceiver programming 4-25 revised december 2000 part no. 001-9750-007 parameter acceptable responses description scan list yes, no programs if that group is scanned by the group scan feature (section 3.4.7). Data yes, no programs if that group can be used for data transmissions (section 3.6.11) t...

  • Page 81

    Transceiver programming 4-26 revised december 2000 part no. 001-9750-007 parameter acceptable responses description data system/group any system/group in selected bank programs the default system/group that is selected for a data transmission if the selected group is not programmed for data (section...

  • Page 82

    Transceiver programming 4-27 revised december 2000 part no. 001-9750-007 1 1 851.0125 806.0125 2 2 851.0375 806.0375 3 3 851.0625 806.0625 4 4 851.0875 806.0875 5 5 851.1125 806.1125 6 6 851.1375 806.1375 7 7 851.1625 806.1625 8 8 851.1875 806.1875 9 9 851.2125 806.2125 10 10 851.2375 806.2375 11 11...

  • Page 83

    Transceiver programming 4-28 revised december 2000 part no. 001-9750-007 109 109 853.7125 808.7125 110 110 853.7375 808.7375 111 111 853.7625 808.7625 112 112 853.7875 808.7875 113 113 853.8125 808.8125 114 114 853.8375 808.8375 115 115 853.8625 808.8625 116 116 853.8875 808.8875 117 117 853.9125 80...

  • Page 84

    Transceiver programming 4-29 revised december 2000 part no. 001-9750-007 217 217 856.4125 811.4125 218 218 856.4375 811.4375 219 219 856.4625 811.4625 220 220 856.4875 811.4875 221 221 856.5125 811.5125 222 222 856.5375 811.5375 223 223 856.5625 811.5625 224 224 856.5875 811.5875 225 225 856.6125 81...

  • Page 85

    Transceiver programming 4-30 revised december 2000 part no. 001-9750-007 325 325 859.1125 814.1125 326 326 859.1375 814.1375 327 327 859.1625 814.1625 328 328 859.1875 814.1875 329 329 859.2125 814.2125 330 330 859.2375 814.2375 331 331 859.2625 814.2625 332 332 859.2875 814.2875 333 333 859.3125 81...

  • Page 86

    Transceiver programming 4-31 revised december 2000 part no. 001-9750-007 433 433 861.8125 816.8125 434 434 861.8375 816.8375 435 435 861.8625 816.8625 436 436 861.8875 816.8875 437 437 861.9125 816.9125 438 438 861.9375 816.9375 439 439 861.9625 816.9625 440 440 861.9875 816.9875 441 441 862.0125 81...

  • Page 87

    Transceiver programming 4-32 revised december 2000 part no. 001-9750-007 541 541 864.5125 819.5125 542 542 864.5375 819.5375 543 543 864.5625 819.5625 544 544 864.5875 819.5875 545 545 864.6125 819.6125 546 546 864.6375 819.6375 547 547 864.6625 819.6625 548 548 864.6875 819.6875 549 549 864.7125 81...

  • Page 88

    Transceiver programming 4-33 revised december 2000 part no. 001-9750-007 649 645 866.6000 821.6000 650 646 866.6125 821.6125 651 647 866.6250 821.6250 652 648 866.6375 821.6375 653 649 866.6500 821.6500 654 650 866.6625 821.6625 655 651 866.6750 821.6750 656 652 866.6875 821.6875 657 653 866.7000 82...

  • Page 89

    Transceiver programming 4-34 revised december 2000 part no. 001-9750-007 757 749 867.9500 822.9500 758 750 867.9625 822.9625 759 751 867.9750 822.9750 760 752 867.9875 822.9875 761 - 868.0000 823.0000 762 753 868.0125 823.0125 763 - 868.0250 823.0250 764 754 868.0375 823.0375 765 755 868.0500 823.05...

  • Page 90

    Transceiver programming 4-35 revised december 2000 part no. 001-9750-007 865 - 869.3000 824.3000 866 - 869.3125 824.3125 867 - 869.3250 824.3250 868 - 869.3375 824.3375 869 - 869.3500 824.3500 870 - 869.3625 824.3625 871 - 869.3750 824.3750 872 - 869.3875 824.3875 873 - 869.4000 824.4000 874 - 869.4...

  • Page 91

    Transceiver programming 4-36 revised december 2000 part no. 001-9750-007 1 1 935.0125 896.0125 2 2 935.0250 896.0250 3 3 935.0375 896.0375 4 4 935.0500 896.0500 5 5 935.0625 896.0625 6 6 935.0750 896.0750 7 7 935.0875 896.0875 8 8 935.1000 896.1000 9 9 935.1125 896.1125 10 10 935.1250 896.1250 11 11...

  • Page 92

    Transceiver programming 4-37 revised december 2000 part no. 001-9750-007 109 109 936.3625 897.3625 110 110 936.3750 897.3750 111 111 936.3875 897.3875 112 112 936.4000 897.4000 113 113 936.4125 897.4125 114 114 936.4250 897.4250 115 115 936.4375 897.4375 116 116 936.4500 897.4500 117 117 936.4625 89...

  • Page 93

    Transceiver programming 4-38 revised december 2000 part no. 001-9750-007 217 217 937.7125 898.7125 218 218 937.7250 898.7250 219 219 937.7375 898.7375 220 220 937.7500 898.7500 221 221 937.7625 898.7625 222 222 937.7750 898.7750 223 223 937.7875 898.7875 224 224 937.8000 898.8000 225 225 937.8125 89...

  • Page 94

    Transceiver programming 4-39 revised december 2000 part no. 001-9750-007 325 325 939.0625 900.0625 326 326 939.0750 900.0750 327 327 939.0875 900.0875 328 328 939.1000 900.1000 329 329 939.1125 900.1125 330 330 939.1250 900.1250 331 331 939.1375 900.1375 332 332 939.1500 900.1500 333 333 939.1625 90...

  • Page 95

    Transceiver programming 4-40 revised december 2000 part no. 001-9750-007 433 433 940.4125 901.4125 434 434 940.4250 901.4250 435 435 940.4375 901.4375 436 436 940.4500 901.4500 437 437 940.4625 901.4625 438 438 940.4750 901.4750 439 439 940.4875 901.4875 440 440 940.5000 901.5000 441 441 940.5125 90...

  • Page 96

    5-1 revised february 1997 part no. 001-9750-005 multi-net system overview section 5 multi-net system overview figure 5-1 multi-net system components multi-net ltr conventional system management module dispatcher console public switched telephone network (pstn) other rnt's and systems radio network t...

  • Page 97

    Multi-net system overview 5-2 revised february 1997 part no. 001-9750-005 or another multi-net system. Phone lines or some other type of link can be used to provide a commu- nication path. Multi-net systems are not restricted to a certain type of signaling. For example, an entire multi-net system co...

  • Page 98

    Multi-net system overview 5-3 revised february 1997 part no. 001-9750-005 5.2 definitions of multi-net terms conventional system - a type of radio system that is licensed to operate on only a single channel. There is no automatic access to several channels. Home repeater - all multi-net mobiles have...

  • Page 99

    Multi-net system overview 5-4 revised february 1997 part no. 001-9750-005 5.3 home and status repeaters when a mobile transceiver is programmed, it is assigned “home” and “status” repeaters. The status repeater is used by a mobile as its primary source of incoming call and free repeater information....

  • Page 100

    Multi-net system overview 5-5 revised february 1997 part no. 001-9750-005 by the rnt, the smm alerts the system operator. The faulty repeater may then be automatically or manually shut down by the smm. 5.5 mobile-repeater data signaling the setup and control of a call is performed by exchanging data...

  • Page 101

    Multi-net system overview 5-6 revised february 1997 part no. 001-9750-005 with multi-net signaling, repeater data bus synchronization is done distributively. Therefore, no single repeater is responsible for data bus synchroniza- tion. If any of the repeaters at the site become inopera- tive, the oth...

  • Page 102

    Multi-net system overview 5-7 revised february 1997 part no. 001-9750-005 telephone and other special calls cannot be interrupted by standard calls. Refer to section 3.7.4 for more information. 5.8.3 all call “all call” is another of the special calls described earlier. This call goes out to all mob...

  • Page 103

    Multi-net system overview 5-8 revised february 1997 part no. 001-9750-005 with the proper key, communication is not possible. The system key is provided to the system operator by the e.F. Johnson company. 5.8.10 dynamic channel assignment when channels (repeaters) are added to a multi- net system, m...

  • Page 104

    Multi-net system overview 5-9 revised february 1997 part no. 001-9750-005 5.8.16 voice encryption note: voice encryption is currently not available for e.F. Johnson 900 mhz transceivers. Optional voice encryption provides security from unauthorized monitoring of conversations by casual eavesdropping...

  • Page 105

    Multi-net system overview 5-10 revised february 1997 part no. 001-9750-005.

  • Page 106

    6-1 august 1993 part no. 001-9750-001 circuit description 6.1 general transceiver description 6.1.1 introduction the summit 97xx transceiver contains the following pc board assemblies: rf, pa (power ampli- fier), audio/logic, and display. The rf board contains the synthesizer and receiver sections, ...

  • Page 107

    Circuit description 6-2 august 1993 part no. 001-9750-001 the microprocessor similar to an eeprom. This allows the operating program to be updated using the standard programming setup and special software. This eliminates the need to change a rom or the microprocessor to update software. 6.2 synthes...

  • Page 108

    Circuit description 6-3 august 1993 part no. 001-9750-001 figure 6-1 transceiver block diagram.

  • Page 109

    Circuit description 6-4 august 1993 part no. 001-9750-001 the dc voltage applied across cr904 provides compensation to keep modulation relatively flat over the entire bandwidth of the vco. This compensation is required because modulation tends to increase as the vco frequency gets higher (capacitanc...

  • Page 110

    Circuit description 6-5 august 1993 part no. 001-9750-001 figure 6-2 u801 block diagram remains stable over changes in temperature. Flows so that the voltage drop across r809 equals the drop across r815 and the base- emitter junction of q802. Impedance matching with the rf coupler on the output of q...

  • Page 111

    Circuit description 6-6 august 1993 part no. 001-9750-001 programming circuitry. The basic operation was described in section 6.2.1. Channel programming channels are selected by programming the r, n, and a counters in u801 to divide by a certain number. The programming of these counters is performed...

  • Page 112

    Circuit description 6-7 august 1993 part no. 001-9750-001 this lock detect signal is integrated by q808 and q809. C831 charges through r830 and r832 and discharges through c831 and q808. When the negative-going lock detect pulses widen, c831 discharges to the turn-off point of q809. The collector of...

  • Page 113

    Circuit description 6-8 august 1993 part no. 001-9750-001 biased so that the voltage drop across r297 is equal to the drop across r294 and the base- emitter of q291. This arrangement provides a bias that remains stable as changes occur in temperature. Impedance matching with filter z201 on the rf bo...

  • Page 114

    Circuit description 6-9 august 1993 part no. 001-9750-001 pin 10 of u200 is the output of an internal rssi (receive signal strength indicator) circuit. It provides a high-impedance current sink that increases in conduc- tion in proportion to increases in the if signal level. The result is that the v...

  • Page 115

    Circuit description 6-10 august 1993 part no. 001-9750-001 in the transmit mode, q507 and q514 are turned on. Current then flows through q507, l506, cr506, and shunt networks cr507/l508/r514 and cr502/ l507/ r528. Diodes cr502, cr506, and cr507 are pin diodes. This type of diode has a very low imped...

  • Page 116

    Circuit description 6-11 august 1993 part no. 001-9750-001 amplifier u504d. The base voltage of q502 is controlled by current sense amplifier q506 and a d-a converter formed by shift register u503 and a resistor network. As the voltage from the d-a converter increases, q502 and q511 turn on more whi...

  • Page 117

    Circuit description 6-12 august 1993 part no. 001-9750-001 drops below the normal range. Reset clears several internal registers and restarts the operating program. This prevents improper operation resulting from low- voltage conditions. Power-on reset occurs automatically for 4064 clock cycles when...

  • Page 118

    Circuit description 6-13 august 1993 part no. 001-9750-001 serial rs-232 interface the serial rs-232 port has three functions. First, it provides data communication with the computer used to program the transceiver. Connection is made via the microphone connector on either the front panel or remote ...

  • Page 119

    Circuit description 6-14 august 1993 part no. 001-9750-001 u406. This prevents inadvertent writing to that device. The f7 output of u407 is not used. 6.5.3 digital signal processor (u300- u302) the digital signal processor circuit is not used in early units. It is used to generate dtmf tones when te...

  • Page 120

    Circuit description 6-15 august 1993 part no. 001-9750-001 the value of c109 controls the rate at which gain changes in response to changes in the input level. Pin 5 is the inverting input of an internal operational amplifier and pin 7 is the output of this amplifier. R108 sets amplifier gain, and c...

  • Page 121

    Circuit description 6-16 august 1993 part no. 001-9750-001 valid data may be present. The squelch circuit is controlled by the amount of noise present in the receive audio signal. When no signal or a weak signal is being received by the receiver, there is a large amount of noise present. Conversely,...

  • Page 122

    Circuit description 6-17 august 1993 part no. 001-9750-001 if optional companding is used, jumper r690 is removed and the compandor board is installed. Companding is the compressing and then expanding of the audio signal to reduce noise. This also increases the dynamic range of the audio signal whic...

  • Page 123

    Circuit description 6-18 august 1993 part no. 001-9750-001.

  • Page 124

    7-1 revised january 1995 part no. 001-9750-003 servicing section 7 servicing 7.1 general 7.1.1 periodic checks this transceiver should be put on a regular main- tenance schedule to ensure that it continues to operate properly. Important checks are receiver sensitivity and transmitter frequency, devi...

  • Page 125

    Servicing 7-2 revised january 1995 part no. 001-9750-003 once the device is installed in the pc board, it is protected by internal diode protection circuits, so the chance of damage is reduced. A service bench protec- tion kit, part no. 299-0026-001, can be ordered from the service parts department....

  • Page 126

    Servicing 7-3 revised january 1995 part no. 001-9750-003 figure 7-1 simplified synthesizer block diagram number can be determined as follows (calculation of a and n is described in section 7.2.5). Prescaler div no. = 128 + a/n for example, for 800 mhz channel 300 (transmit), prescaler div no. = 128 ...

  • Page 127

    Servicing 7-4 revised january 1995 part no. 001-9750-003 divide number is correct, continue the checks which follow. Phase detector - when the vco is not locked on frequency, the fr and fv inputs to the phase detector are probably not the same frequency. Measure the frequency at fr (pin 13) and fv (...

  • Page 128

    Servicing 7-5 revised january 1995 part no. 001-9750-003 7.2.5 determining counter divide numbers the r, n, and a counter divide numbers can be determined as follows: r (reference) counter r = 17.500 mhz ÷12.5 khz or 1400 (all channels) n counter first, determine overall divide number nt: nt = vco f...

  • Page 129

    Servicing 7-6 revised january 1995 part no. 001-9750-003 as follows. For example, “273” indicates a 27k ohm resistor and “339” indicates a 3.3 ohm resistor. ± 1% resistors (p.N. 569-0111-xxx) some resistors with a ± 1% tolerance are identi- fied by a four-digit number and others may not have a marki...

  • Page 130

    Servicing 7-7 revised january 1995 part no. 001-9750-003 7.6.4 smd inductor identification smd inductors (p.N. 542-9000-xxx) use three colored dots to indicate the value. The two dots on the left side indicate the first and second digits of the value in nanohenries, and the single dot on the right s...

  • Page 131

    Servicing 7-8 revised january 1995 part no. 001-9750-003.

  • Page 132

    8-1 revised january 1995 part no. 001-9750-003 alignment procedure and performance tests 8.1 general 8.1.1 introduction the following alignment should be performed if repairs are made that could affect the factory align- ment. Performance tests are located in sections 8.5 and 8.6, and it is recommen...

  • Page 133

    Alignment procedure and performance tests 8-2 revised january 1995 part no. 001-9750-003 c. The meter reading should be 9.5v ± 2.0v. Also check the other receive test channels. The voltage should be 3-18 vdc. If this voltage is not within these ranges, there is a problem with the synthesizer (the vc...

  • Page 134

    Alignment procedure and performance tests 8-3 revised january 1995 part no. 001-9750-003 d. Press and rotate the select switch to select the ta pwr set function (see section 3.11.4). Press the select switch to display ta pwr 1. E. Key the transmitter and rotate the select switch to set the power out...

  • Page 135

    Alignment procedure and performance tests 8-4 revised january 1995 part no. 001-9750-003 8.4 receiver alignment 8.4.1 front end alignment caution do not transmit with the signal generator connected because severe generator damage could result. A. Connect the test setup shown in figure 8-3. Select th...

  • Page 136

    Alignment procedure and performance tests 8-5 revised january 1995 part no. 001-9750-003 c. Increase the generator output until the receiver unsquelches. This should occur by 9 db sinad ± 2 db. Then decrease the output until the receiver squelches. This should occur by 5 db ± 2 db. If not, repeat th...

  • Page 137

    Alignment procedure and performance tests 8-6 revised january 1995 part no. 001-9750-003 performance tests 8.5 receiver performance tests caution do not transmit with the signal generator connected because severe generator damage could result. Applying a positive dc voltage to either audio ampli- fi...

  • Page 138

    9-1 revised december 2000 part no. 001-9750-007 parts list section 9 parts list ref no. Description part no. Rf and pa boards, hardware and miscellaneous a 001 stabilization board, 800 mhz pa 023-9884-533 0.01 µf x7r ±10% 50v cer smd 510-3606-103 0.01 µh smd inductor 542-9001-107 a 301 pigtail cable...

  • Page 139

    Parts list 9-2 revised december 2000 part no. 001-9750-007 c 243 10 pf ±5% npo 50v cer smd 510-3601-100 c 244 15 pf ±5% npo 50v cer smd 510-3601-150 c 246 4.7 pf ±5% npo 50v cer smd 510-3601-479 c 247 .01 µf x7r ±10% 50v cer smd 510-3605-103 c 248 .01 µf x7r ±10% 50v cer smd 510-3605-103 c 249 .001 ...

  • Page 140

    Parts list 9-3 revised december 2000 part no. 001-9750-007 c 530 2.7 pf ±5% npo 50v cer smd 510-3615-279 (800 mhz 15w) 4.3 pf ±5% npo 50v cer smd 510-3615-439 (800 mhz 35w) 1 pf ±5% npo 50v cer smd 510-3615-109 (900 mhz 30w) c 531 5.6 pf ±5% npo 50v cer smd 510-3615-569 (800 mhz) 4.7 pf 250v mini mi...

  • Page 141

    Parts list 9-4 revised december 2000 part no. 001-9750-007 c 569 56 pf ±10% 50v high q smd 510-3663-560 (800 mhz, 35w) 39 pf ±5% npo 50v cer smd 510-3615-390 (900 mhz, 30w) c 570 39 pf ±5% npo 50v cer smd 510-3615-390 c 571 39 pf ±5% npo 50v cer smd 510-3615-390 c 572 1.0 µf ±10% x7r 50v cer smd 510...

  • Page 142

    Parts list 9-5 revised december 2000 part no. 001-9750-007 hw 001 captive screw, covers 537-9007-045 hw 002 screw, 6-32 x 5/16” torx 575-0006-010 hw 003 plug, option cable hole 032-0792-075 hw 004 heat sink clip 017-2226-030 hw 005 o-ring 1/8”x 1/4” 574-2002-001 hw 006 washer, .16 id nylon 596-4408-...

  • Page 143

    Parts list 9-6 revised december 2000 part no. 001-9750-007 p 100 2-pin header 515-9031-201 p 101 3-pin header 515-9031-202 pc 210 pc board, rf 035-9650-210 pc 500 pc board, pa unrevised 035-9650-510 pc board, pa revised 035-9650-530 q 100 pnp to-220 576-0002-057 q 101 npn low-noise amp 576-0001-300 ...

  • Page 144

    Parts list 9-7 revised december 2000 part no. 001-9750-007 r 214 100 ohm ±5% 1/8w smd 569-0105-101 r 215 270 ohm ±5% 1/8w smd 569-0105-271 r 216 0 ohm jumper 569-0105-001 (900 mhz only) r 217 18 ohm ±5% 1/8w smd 569-0105-180 r 218 270 ohm ±5% 1/8w smd 569-0105-271 r 220 330 ohm ±5% 1/8w smd 569-0105...

  • Page 145

    Parts list 9-8 revised december 2000 part no. 001-9750-007 r 577 1.0k ohm ±5% 1/8w smd 569-0105-102 (800 mhz 15w) 1.5k ohm ±5% 1/8w smd 569-0105-152 (800 mhz 35w) 330 ohm ±5% 1/8w smd 569-0105-331 (900 mhz, 15w) 680 ohm ±5% 1/8w smd 569-0105-681 (900 mhz 30w) r 580 220 ohm ±5% 1/8w smd 569-0105-221 ...

  • Page 146

    Parts list 9-9 revised december 2000 part no. 001-9750-007 r 847 1.0k ohm ±5% 1/8w smd 569-0105-102 r 848 10k ohm ±5% 1/8w smd 569-0105-103 r 849 10k ohm ±5% 1/8w smd 569-0105-103 r 851 10k ohm ±5% 1/8w smd 569-0105-103 rt 500 thermistor, 10k ohm 569-3012-001 (30/35w) u 100 audio amp, 20w 7240a 544-...

  • Page 147

    Parts list 9-10 revised december 2000 part no. 001-9750-007 c 602 .22 µf ±10% x7r 50v cer smd 510-3607-224 c 603 .22 µf ±10% x7r 50v cer smd 510-3607-224 c 604 1.0 µf 16v tantalum smd 510-2625-109 c 605 1.0 µf 16v tantalum smd 510-2625-109 c 606 10 µf 16v tantalum smd 510-2625-100 c 607 .01 µf x7r ±...

  • Page 148

    Parts list 9-11 revised december 2000 part no. 001-9750-007 c 707 0.1 µf x7r ±5% 50v cer smd 510-3610-104 c 708 .0033 µf x7r ±5% cer smd 510-3609-332 c 709 .0022 µf x7r ±5% cer smd 510-3609-222 c 710 10 µf 16v tantalum smd 510-2625-100 c 711 .015 µf x7r ±10% 50v cer smd 510-3605-153 c 712 .01 µf x7r...

  • Page 149

    Parts list 9-12 revised december 2000 part no. 001-9750-007 r 325 11k ohm ±5% 1/8w smd 569-0105-113 r 326 3.3k ohm ±5% 1/8w smd 569-0105-332 r 400 11k ohm ±5% 1/8w smd 569-0105-113 r 401 10m ohm ±5% 1/8w smd 569-0105-106 r 402 11k ohm ±5% 1/8w smd 569-0105-113 r 403 11k ohm ±5% 1/8w smd 569-0105-113...

  • Page 150

    Parts list 9-13 revised december 2000 part no. 001-9750-007 r 500 10k ohm ±5% 1/8w smd 569-0105-103 r 501 1k ohm ±5% 1/8w smd 569-0105-102 r 502 zero ohm jumper 569-0105-001 r 503 1k ohm ±5% 1/8w smd 569-0105-102 r 601 6.8k ohm ±5% 1/8w smd 569-0105-682 r 602 5.1k ohm ±5% 1/8w smd 569-0105-512 r 606...

  • Page 151

    Parts list 9-14 revised december 2000 part no. 001-9750-007 r 699 150k ohm ±5% 1/8w smd 569-0105-154 r 700 82k ohm ±5% 1/8w smd 569-0105-823 r 701 470k ohm smd trimmer 562-0130-474 r 702 3.3k ohm ±5% 1/8w smd 569-0105-332 r 703 220k ohm smd trimmer 562-0130-224 r 704 47k ohm ±5% 1/8w smd 569-0105-47...

  • Page 152

    Parts list 9-15 revised december 2000 part no. 001-9750-007 rt 600 thermistor 1k ohm 569-3013-002 u 300 microprocessor, dsp tms320c17 544-5003-150 u 301 latch, 3-state 74hc573 544-3766-573 u 302 prgmble array logic i/o custom 544-9017-005 u 304 serial a/d converter 145040 544-2034-003 u 305 op amp, ...

  • Page 153

    Parts list 9-16 revised december 2000 part no. 001-9750-007 s 154 10k ohm volume pot/push-on sw 562-0018-075 s 155 switch, rotary and push 583-2042-001 u101 lcd driver 8576 544-2027-010 u102 lcd driver 8676 544-2027-010 ref no. Description part no. Compandor kit part no. 250-9750-002 c 100 .22 µf ±1...

  • Page 154

    Parts list 9-17 revised december 2000 part no. 001-9750-007 accessory wire kit part no. 023-9750-011 fuseholder components: ep 001 contact 586-9004-001 f 001 fuse, 1a 250v fb agc 534-0003-020 mp001 fuseholder body 534-1004-031 mp002 fuseholder knob 534-1004-032 mp003 fuseholder spring 534-1004-035 h...

  • Page 155

    Parts list 9-18 revised december 2000 part no. 001-9750-007 r 114 10k ohm ±5% 1/8w smd 569-0105-103 r 115 10k ohm ±5% 1/8w smd 569-0105-103 r 116 10k ohm ±5% 1/8w smd 569-0105-103 r 117 10k ohm ±5% 1/8w smd 569-0105-103 r 118 10k ohm ±5% 1/8w smd 569-0105-103 r 119 10k ohm ±5% 1/8w smd 569-0105-103 ...

  • Page 156

    9-19 revised december 2000 part no. 001-9750-007 transceiver exploded view (part 1).

  • Page 157

    Revised january 1995 part no. 001-9750-003 9-20 transceiver exploded view (part 2) remote control parts.

  • Page 158

    10-1 revised january 1995 part no. 001-9750-003 schematic diagrams and component layouts section 10 schematic diagrams and component layouts transistors part number basing diagram identification 576-0001-300 1 1r 576-0002-057 2 - 576-0003-603 - 576-0003-608 3 7f 576-0003-612 1 2t 576-0003-616 1 - 57...

  • Page 159

    Schematic diagrams and component layouts 10-2 revised may 1998 part no. 001-9750-006 ref no. Description part no. Amplified dynamic microphone part no. 250-0740-310 c 001 3.3 µf 16v tantalum chip 510-2625-339 c 002 220 pf ±5% npo 50v cer chip 510-3602-221 ep002 mic cord w/hirose connector 597-2002-2...

  • Page 160

    10-3 revised december 2000 part no. 001-9750-007 transceiver-to-transceiver cloning cable part no. 597-2002-268 j4 hanger 1 2 3 4 5 6 7 8 9 10 j4 12v vpp gnd txd gnd gnd gnd rxd battery nc 9 5 4 2 3 6 8 7 1 10 j5 a 1 2 3 4 5 6 b dcd 1 2 txd rxd dtr 3 4 sg dsr 5 6 rts cts 7 8 si 9 j2 db9 t o computer...

  • Page 161

    10-4 revised december 2000 part no. 001-9750-007 rpi-to-transceiver programming cable part no. 023-9750-005 r17 cr10 q3 j4 10 9 2 1 q2 e b c b c e c c7 r16 r18 u1 c10 c18 c11 c5 c16 j6 1 2 3 4 cr7 j1 j8 j2 1 6 c14 u4 9 8 1 16 c17 c15 r20 r21 r22 r11 r6 r5 r4 u2 cr5 l1 r10 r9 ds1 1 7 s1 3 1 8 5 4 8 1...

  • Page 162

    10-5 revised january 1995 part no. 001-9750-003 schematic diagrams and component layouts rf and pa board component locator guide the following guide can be used to locate components on the rf and pa boards. Refer to the grid around the board to determine the approximate location of a component. Com ...

  • Page 163

    Schematic diagrams and component layouts 10-6 revised january 1995 part no. 001-9750-003 c 815 c5 rf c 818 a4 rf c 819 b4 rf c 820 b4 rf c 821 a4 rf c 822 a4 rf c 823 a4 rf c 824 a4 rf c 826 b3 rf c 827 b4 rf c 828 b4 rf c 829 b4 rf c 831 c4 rf c 832 b4 rf c 834 b3 rf c 836 b1 rf c 837 a3 rf c 838 a...

  • Page 164

    Schematic diagrams and component layouts 10-7 revised january 1995 part no. 001-9750-003 r 511 c5 pa r 512 c6 pa r 513 c6 pa r 514 b6 pa r 515 c6 pa r 516 c5 pa r 517 b5 pa r 519 c5 pa r 521 c6 pa r 522 b3 pa r 525 b3 pa r 526 b4 pa r 527 d7 pa r 528 b6 pa r 531 b5 pa r 534 b4 pa r 536 c6 pa r 537 c...

  • Page 165

    Schematic diagrams and component layouts 10-8 revised january 1995 part no. 001-9750-003 the following guide can be used to locate components on the audio/logic board. Refer to the grid around the board to determine the approximate location of a component. Comp loc top/bot c 300 b4 top c 302 d4 bot ...

  • Page 166

    Schematic diagrams and component layouts 10-9 revised january 1995 part no. 001-9750-003 j 400 e4 top j 401 a3 top j 402 d5 top j 403 c8 top j 404 d6 top j 405 a1 top q 300 c3 top q 400 d3 top q 401 d3 top q 402 e5 top q 403 e5 top q 404 e5 top q 450 b4 bot q 451 b3 bot q 452 b3 bot q 600 b6 bot q 6...

  • Page 167

    Schematic diagrams and component layouts 10-10 revised january 1995 part no. 001-9750-003 r 658 a4 bot r 659 a4 top r 660 d6 bot r 661 d6 bot r 662 a4 bot r 663 a5 top r 664 a4 top r 665 a5 top r 666 a4 top r 667 a5 bot r 668 b5 bot r 669 b5 bot r 670 b6 bot r 671 b5 bot r 672 a5 top r 673 a5 top r ...

  • Page 168

    Revised january 1995 part no. 001-9750-003 10-11 interconnect schematic.

  • Page 169

    Revised january 1995 part no. 001-9750-003 10-12 display board schematic.

  • Page 170

    Revised january 1995 part no. 001-9750-003 10-13 display board top view display board bottom view.

  • Page 171

    Revised january 1995 part no. 001-9750-003 10-14 rf board schematic (revised 800 mhz).

  • Page 172

    Revised january 1995 part no. 001-9750-003 10-15 rf board board layout (all 800/900 mhz).

  • Page 173

    Revised january 1995 part no. 001-9750-003 10-16 rf board board schematic (900 mhz).

  • Page 174

    Revised january 1995 part no. 001-9750-003 10-17 rf board board schematic (unrevised 800 mhz).

  • Page 175

    Revised december 2000 part no. 001-9750-007 10-18 pa board board schematic (revised 800 mhz, 35w) 5 6 15 r559 100k q503 1300 r560 10k c565 0.01 r558 1m 8v r526 20k r548 20k r547 20k r546 20k r545 20k r544 20k r543 20k r534 10k r550 10k r555 10k r551 10k r552 10k r553 10k r554 20k 11 3 2 1 15 16 12 1...

  • Page 176

    Revised december 2000 part no. 001-9750-007 10-19 pa board board schematic (revised 800 mhz, 15w) 5 6 15 r559 100k q503 1300 r560 10k c565 0.01 r558 1m 8v r526 20k r548 20k r547 20k r546 20k r545 20k r544 20k r543 20k r534 10k r550 10k r555 10k r551 10k r552 10k r553 10k r554 20k 11 3 2 1 15 16 12 1...

  • Page 177

    Revised december 2000 part no. 001-9750-007 10-20 l503 c534 c521 c522 l504 c567 c502 c500 c549 r527 cr506 c569 c568 l510 c561 c571 r541 cr505 r539 r536 cr504 c511 c526 c508 c509 c506 c507 c592 c591 c539 c530 c563 c562 q500 c558 c559 c516 c515 u500 c593 l520 r587 c555 r510 l501 c537 r525 r550 c525 c5...

  • Page 178

    Revised january 1995 part no. 001-9750-003 10-21 pa board schematic (900 mhz, 30w).

  • Page 179

    Revised january 1995 part no. 001-9750-003 10-22 pa board schematic (900 mhz, 15w).

  • Page 180

    Revised january 1995 part no. 001-9750-003 10-23 pa board board layout (900 mhz/unrevised 800 mhz, 15w/30w/35w) 15w models.

  • Page 181

    Revised january 1995 part no. 001-9750-003 10-24 pa board schematic (unrevised 800 mhz, 35w).

  • Page 182

    Revised january 1995 part no. 001-9750-003 10-25 pa board schematic (unrevised 800 mhz, 15w).

  • Page 183

    Revised january 1995 part no. 001-9750-003 10-26 audio/logic board schematic (part 1 of 2).

  • Page 184

    Revised january 1995 part no. 001-9750-003 10-27 audio/logic board schematic (part 2 of 2).

  • Page 185

    Revised january 1995 part no. 001-9750-003 10-28 audio/logic board layout (top view).

  • Page 186

    Revised january 1995 part no. 001-9750-003 10-29 audio/logic board layout (bottom view).

  • Page 187

    10-30 revised december 2000 part no. 001-9750-007 r107 2.2k c111 0.1 + c109 1 c110 0.1 + u101b 2904 r106 560k r105 270k c102 .015 u102d mc14066 7 6 u102c 14066 r108 33k c108 22pf r109 68k c112 0.015 q100 3616 2 r110 68k r111 390 ds100 u102a 14066 c113 0.015 + c114 1 r113 5.1k r112 6.8k 5 4 3 1 c100 ...

  • Page 188

    Revised january 1995 part no. 001-9750-003 10-31 remote transceiver interconnect schematic.

  • Page 189

    Revised january 1995 part no. 001-9750-003 10-32 remote control unit interface board schematic.

  • Page 190

    10-33 revised january 1995 part no. 001-9750-003 remote control unit interface board top view remote control unit interface board bottom view.

  • Page 191

    A-1 revised december 2000 part no. 001-9750-007 revision summary appendix a revision summary a.1 introduction this appendix describes the changes that have been made to the summit dm transceivers and programming software through may 1998. The component changes that have been made through january 199...

  • Page 192

    Revision summary a-2 revised december 2000 part no. 001-9750-007 table a-1 operating software version numbers version number approx release date description notes 201 9/93 original release 202 11/93 added automatic npspac deviation adjust and fixed various minor problems. 203 2/94 added telephone mo...

  • Page 193

    Revision summary a-3 revised december 2000 part no. 001-9750-007 later operating software (see section a.2). If the earlier version (201) is used to program those transceivers, er- ratic operation will result. The version 202 software has added screens for programming the ud 2 i universal interface ...

  • Page 194

    Revision summary a-4 revised december 2000 part no. 001-9750-007 group to be automatically selected in the new system. For example, the transceiver can be programmed so that if a telephone group is selected and auto-registra- tion occurs on a new system, a telephone group is also selected on the new...

  • Page 195

    Revision summary a-5 revised december 2000 part no. 001-9750-007 hw 8 ground clip (900 mhz only) --- 017-2226-040 added hw 9 .167 x .277 steel flat washer (cover screws) 596-9408-009 added l 207 1.0 µ h smd inductor (800 mhz) 542-9001-109 542-9001-398 changed l 501 8t 22 awg smd inductor 542-0015-00...

  • Page 196

    Revision summary a-6 revised december 2000 part no. 001-9750-007 tcxo change in early 1995, a running change was made to the tcxo of all models. When the new tcxo is used (the part number is printed on the case), the value of three resistors must also be changed. The parts that changed are as follow...

  • Page 197

    Revision summary a-7 revised december 2000 part no. 001-9750-007 note: the changes in the following table have been made to the schematics and parts list in this manual. A.8 other late changes this manual (part no. 001-9750-007) has been updated with changes that have been made through november 2000...

  • Page 198

    B-1 revised may 1998 part no. 001-9750-006 universal digital and data interface appendix b universal digital and data interface b.1 general information b.1.1 scope this appendix describes the universal digital and data interface (ud 2 i ™ ) as it functions with summit ® dm multi-net® transceivers. T...

  • Page 199

    Universal digital and data interface b-2 revised may 1998 part no. 001-9750-006 caution: the db25 universal interface connector is a non-standard port. Therefore, do not connect any equipment to this port not specially designed for this interface because equipment damage may result. Normally, there ...

  • Page 200

    Universal digital and data interface b-3 revised may 1998 part no. 001-9750-006 figure b-2 receive audio signal routing table b-2 receive audio pin description function pin description rx demod out 7 buffered discriminator output before any filtering. Dc coupled with 3.8-volt dc bias. Output impedan...

  • Page 201

    Universal digital and data interface b-4 revised may 1998 part no. 001-9750-006 figure b-3 transmit audio signal routing table b-4 transmit audio pin description function pin description tx mic out 11 buffered single-ended microphone signal before any filtering. Dc coupled with 3.2-volt dc bias. Out...

  • Page 202

    Universal digital and data interface b-5 revised may 1998 part no. 001-9750-006 b.5 input control signals the universal interface has four input control signals. Two of these signals are dedicated to push-to- talk and squelch functions, and the other two (input a/ b) are user programmable for variou...

  • Page 203

    Universal digital and data interface b-6 revised may 1998 part no. 001-9750-006 outputs rssi out 21 direct analog rssi (received signal strength indicator) output. The dc voltage of this output decreases from 8 - 0 volts as signal strength increases. Output impedance is greater than 100k ohms. Aux1 ...

  • Page 204

    Universal digital and data interface b-7 revised may 1998 part no. 001-9750-006 b.7 interfacing with a data modem b.7.1 general the following information describes how an external data modem can be connected to the universal interface. Described are the lines that are used and how they should be pro...

  • Page 205

    Universal digital and data interface b-8 revised may 1998 part no. 001-9750-006 transmitting mobile. Normal embedded data flow then resumes before time-out occurs. Modem initiated transmission 1. A data transmission is initiated by the modem by activating (grounding) the data ptt (ptt req n) line fo...

  • Page 206

    Universal digital and data interface b-9 revised may 1998 part no. 001-9750-006 this serial bus is the same bus that is used for transceiver programming and remote control. It is available on the following connectors: universal interface (j601) - txd ttl u, rxd ttl u remote interface (j600) - txd tt...

  • Page 207

    Universal digital and data interface b-10 revised may 1998 part no. 001-9750-006 figure b-4 serial bus encode/decode diagram - embedded escape charac- ter in the data stream. The first escape character is ab- sorbed and only the second escape remains. - embedded escape character followed by another ...

  • Page 208

    Universal digital and data interface b-11 revised may 1998 part no. 001-9750-006 audio_path this tells the radio to set the specified receive or transmit audio path mode (see sections 3 and 4). Transmit audio path changes are ignored if not in the transmit mode, and the gates revert to the previous ...

  • Page 209

    Universal digital and data interface b-12 revised may 1998 part no. 001-9750-006 • an operator action occurs • an operator action is simulated • a display_message is sent with no string (the data field contains only the sub-op code display_message) display_message = 0x08 string = 10-character string...

  • Page 210

    Universal digital and data interface b-13 revised may 1998 part no. 001-9750-006 ptt_event = 0x0c state = new state (0 = released, non 0 = pressed) reset this tells the radio to configure event flags, i/o options, and audio path options to default states. Reset = 0x0d return_grp_id this tells the ra...

  • Page 211

    Universal digital and data interface b-14 revised may 1998 part no. 001-9750-006 set_auto_display this tells the radio to send and update_ display message whenever the contents of the radio display change. Set_auto_display = 0x24 status = new status (0 = off, 1 = on) set_lockout_gid this tells the r...

  • Page 212

    Universal digital and data interface b-15 revised may 1998 part no. 001-9750-006 this tells the radio to enable its internal horn switch (pulse on for 0.5 second and off for 0.5 second for 3 cycles). Note that many internal actions can cancel this operation including many serial commands. Once sent,...

  • Page 213

    Universal digital and data interface b-16 revised may 1998 part no. 001-9750-006 lockout_gid this is a response to a get_lockout_gid message. Lockout_gid = 0x0d count = number of decode ids in this message decode id = decode ids that are now locked out (0 indicates an empty lockout slot) system numb...

  • Page 214

    Universal digital and data interface b-17 revised may 1998 part no. 001-9750-006 bit 5 = rx valid call started bit 6 = rx valid call ended bit 7 = zero (reserved) event group 3 = bit field (bit 0 = lsb) bit 0 = rx on data group started bit 1 = rx on data group ended bit 2 = tx audio mute bit 3 = tx ...

  • Page 215

    Universal digital and data interface b-18 revised may 1998 part no. 001-9750-006 field includes the requested system and group numbers. Sys_grp_invalid = 0x09 system = currently active system number group = currently active group number unique_id this is a response to a return_unique_id message, inf...

  • Page 216

    Part number 001-9750-007 12-00 hph printed in u.S.A..