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  4. Orca 5000
  5. Service Manual

Tait Orca 5000 Service Manual

Summary of Orca 5000

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    Tait orca 5000 portable radios service manual june 2003 ipn: m5000-00-105.

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    Ii june 2003 ipn: m5000-00-105 preface contacting tait electronics ltd the contact details for your nearest tait electronics regional office, can be found on the tait website: http://www.Taitworld.Com/ enquiries and comments if you have any enquiries regarding this manual, or any comments, suggestio...

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    June 2003 ipn: m5000-00-105 iii publication history publication date product code may 2001 m5000-00-100 june 2001 m5000-00-101 september 2001 m5000-00-102 may 2002 m5000-00-103 september 2002 m5000-00-104 june 2003 m5000-00-105.

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    Iv june 2003 ipn: m5000-00-105.

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    June 2003 ipn: m5000-00-105 v contents part a: introduction servicing tait orca 5000 portable radios servicing tait orca 5000 portable radios servicing tait orca 5000 portable radios servicing tait orca 5000 portable radios ...............................................................................

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    Vi june 2003 ipn: m5000-00-105 top-jxxxx 806-870mhz radio specifications...................................................................................... B-11 top-kxxxx 896-941mhz radio specifications .................................................................................... B-12 circ...

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    June 2003 ipn: m5000-00-105 vii replacing the lcd display (orca 5015/2x/35/40) .............................................................................. D-9 replacing the shield, user interface pcb and polyester dome (orca 5015/2x/35/40) ....................... D-12 replacing the antenna connec...

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    Viii june 2003 ipn: m5000-00-105 troubleshooting ..................................................................................................................................E-14 multi-charger multi-charger multi-charger multi-charger ...............................................................

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    A pa rt introduction this part provides an introduction to servicing tait orca 5000 portable radios. It includes an outline of the tait orca 5000 range of products and precautions that should be taken before servicing tait orca 5000 portable radios. Detailed servicing instructions and information ab...

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    A - 2 june 2003 ipn: m5000-00-105 is pcb servicing requirements ............................................................................ A-11 fm approval ........................................................................................................ A-11 fm approved products ..............

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    June 2003 ipn: m5000-00-105 servicing tait orca 5000 portable radios a - 3 servicing tait orca 5000 portable radios the tait orca 5000 series is a range of portable high performance, microprocessor-controlled radios manufactured using an rf-shielded pcb and high-density smd components. Servicing of ...

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    A - 4 servicing tait orca 5000 portable radios june 2003 ipn: m5000-00-105 ■ t6 driver bit and 8 mm socket (topa-sv- 011); ■ this manual; and ■ top programming utilities (tpu) cd- rom (ipn 406-00003-xx). Other items required for calibration but not included as part of the service kit are: ■ rf commu...

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    June 2003 ipn: m5000-00-105 the tait orca 5000 series of portable radios a - 5 the tait orca 5000 series of portable radios there are eight tait orca 5000 series portable radio products: ■ orca 5010/11 - low tier conventional ■ orca 5015 - mid tier conventional ■ orca 5020/21 - high tier conventiona...

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    A - 6 the tait orca 5000 series of portable radios june 2003 ipn: m5000-00-105 seal behind. Figure a-2 illustrates the differ- ence. Radios factory fitted with the new chassis also have a product code with the format top-xxxxx-bx. Figure a-2: changed chassis hole fitting an accessory to fit some acc...

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    June 2003 ipn: m5000-00-105 the tait orca 5000 series of portable radios a - 7 table a-1: tait orca 5000 accessories type of accessory product code description antennas topa-an-101 130-230 mhz 3" helical topa-an-102 336-540 mhz 3" helical topa-an-201 136-340 mhz 6" helical topa-an-212 400-940 mhz 6"...

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    A - 8 the tait orca 5000 series of portable radios june 2003 ipn: m5000-00-105 warning! The following accessories have the old accesso- ry connector and are still available for purchase. These accessories only fit the older tait orca series portable radios. Do not do not do not do not attempt to fit...

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    June 2003 ipn: m5000-00-105 important information a - 9 important information basic servicing precautions tait orca 5000 portable radios require special- ised servicing techniques and should only be serviced at an approved tait service centre equipped with the necessary facilities. Standard anti-sta...

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    A - 10 important information june 2003 ipn: m5000-00-105 calibrating for information on calibrating tait orca 5000 portable radios, refer to: ■ the tait orca calibration application user’s manual or the online help. The user’s manual is on the top program- ming utilities (tpu) cd-rom, which is inclu...

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    June 2003 ipn: m5000-00-105 servicing intrinsically safe radios a - 11 servicing intrinsically safe radios intrinsically safe radios intrinsically safe (is) radios are certified by a third party to be safe to use in particular hazardous locations. Tait orca 5000 is portable radios can be identified ...

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    A - 12 servicing intrinsically safe radios june 2003 ipn: m5000-00-105 table a-3: fm ratings approval class division group temperature rating intrinsically safe: the unit is unable to cause ignition under normal or abnormal operating conditions. Class i: gas or petroleum type environment. Division 1...

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    B pa rt radio specifications and circuit descriptions this part outlines the radio specifications and circuit descriptions for tait orca portable radios. Contents radio specifications radio specifications radio specifications radio specifications ........................................................

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    B - 2 june 2003 ipn: m5000-00-105.

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    June 2003 ipn: m5000-00-105 radio specifications b - 3 radio specifications tables b-1, b-2 and b-3 show information common to all the radios. For detailed infor- mation on each band, refer to the performance figures outlined in tables b-4 to b-11. The performance figures are typical figures, unless...

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    B - 4 radio specifications june 2003 ipn: m5000-00-105 table b-3: transmitter performance parameter performance duty cycle 20% (1 minute tx, 4 minutes rx at maximum temperature and voltage) group delay variation bandwidth ±50 µs (at mod audio out- put) 300-3000 hz trunking data devia- tion (as per m...

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    June 2003 ipn: m5000-00-105 radio specifications b - 5 table b-4: top-axxxx 66-88mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 66-88mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25khz if ...

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    B - 6 radio specifications june 2003 ipn: m5000-00-105 table b-5: top-bxxxx 136-174mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 136-174mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25khz...

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    June 2003 ipn: m5000-00-105 radio specifications b - 7 table b-6: top-cxxxx 174-225mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 174-225mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25khz...

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    B - 8 radio specifications june 2003 ipn: m5000-00-105 table b-7: top-gxxxx 336-400mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 336-400mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25khz...

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    June 2003 ipn: m5000-00-105 radio specifications b - 9 table b-8: top-hxxxx 400-470mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 400-470mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25khz...

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    B - 10 radio specifications june 2003 ipn: m5000-00-105 table b-9: top-ixxxx 450-530mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 450-530mhz channel spacing 12.5 / 20 / 25 khz frequency increments 5 or 6.25kh...

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    June 2003 ipn: m5000-00-105 radio specifications b - 11 table b-10: top-jxxxx 806-870mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 806-870mhz transmit 851-870mhz receive channel spacing 12.5 / 20 / 25 khz fre...

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    B - 12 radio specifications june 2003 ipn: m5000-00-105 table b-11: top-kxxxx 896-941mhz radio specifications *, † see “important notes for tables b-4 to b-11” on page b-3. General orca 501x/2x orca 503x/40 frequency range 896-941mhz transmit 935-941mhz receive channel spacing 12.5 / 20 / 25 khz fre...

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    June 2003 ipn: m5000-00-105 circuit descriptions b - 13 circuit descriptions circuit interface diagrams for the tait orca portable radios are shown in figure a-1 (top b, c, g, h, i, j and k) and figure a-2 (top a only). The tait orca portable radio has been designed to be totally electronically tune...

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    B - 14 circuit descriptions june 2003 ipn: m5000-00-105 whose selection is controlled by a line from the microprocessor. The speaker output is always available on the accessory connector to drive an external speaker. The unprocessed audio from the output of the demodulator ic (rx-det-af) is also ava...

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    June 2003 ipn: m5000-00-105 circuit descriptions b - 15 +4v3-dec the +4v3-dec supply is derived from the +5v-an voltage. It is used to power the trans- mit and receive vcos in conjunction with the transmit control line from the processor. It also provides the loop filter reference in the synthesiser...

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    B - 16 circuit descriptions june 2003 ipn: m5000-00-105.

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    Ju n e 2003 i p n : m5000- 00- 105 ci rc u it d ia gram s b - 1 7 f ig u re b -1 : c irc uit int e rf a ce dia g ra m fo r t a it or c a p o rt a b le ra d io s (t op b, c , g , h, i , j a nd k ) 93 sheet 2 po wer-amp tx-vco antenna rx-ant pwr-set gnd +7v5-ba tt +5v -an tx-inhibit pin-sw +7v5-sw ga ...

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    B - 1 8 ci rc ui t dia g ra m s ju n e 2003 ip n : m 5000- 00- 1 0 5.

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    Ju n e 2003 i p n : m5000- 00- 105 ci rc u it d ia gram s b - 1 9 f ig u re b -2 : c ir cu it inte rf ace d iagr a m f o r ta it or c a p o rt a b le r ad ios (t op a only) r ev/iss amendments date apvd d.O. Chkd drawn no.Sheets: file name: tait electronics ipn: file date: issue: id:. 2.Sc. Project:...

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    B - 2 0 ci rc ui t dia g ra m s ju n e 2003 ip n : m 5000- 00- 1 0 5.

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    C pa rt diagnostics and fault finding this part provides information on diagnosing faults in tait orca 5000 portable radios. The information in the fault finding charts should be used in combination with the test facilities, and it may also be helpful to examine the radio programming software data u...

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    C - 2 june 2003 ipn: m5000-00-105.

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    June 2003 ipn: m5000-00-105 test facilities c - 3 test facilities standard test facilities provide a way of testing the radio’s functions independently of normal radio operation. A series of test commands can be sent to a radio in two ways: ■ using the top calibration application; or ■ using a termi...

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    C - 4 test facilities june 2003 ipn: m5000-00-105 {x04} the dsp is not responding. Check the dsp for pin connections. If the error persists, the dsp needs to be replaced. Contact your tait dealer. {x05} the dsp version number is incorrect. The radio software and dsp software are incom- patible. The ...

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    June 2003 ipn: m5000-00-105 test facilities c - 5 table c-1: test commands function description cctm code parameters signalling set modem to send zeros 10 none set modem to send ones 11 none set modem to send preamble 12 none disable modem signalling 13 none read modem receive string (continuous) 14...

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    C - 6 test facilities june 2003 ipn: m5000-00-105 table c-1: test commands (continued) function description cctm code parameters radio info read radio serial number 94/131 returns: 6 digit number (hex) read radio software version number 96 returns: 4 digit number read radio type 130 returns: radio t...

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    June 2003 ipn: m5000-00-105 test facilities c - 7 table c-2: calculating the parameters required for test command 101 calculating parameters for test command 101 enter the parameters in the format tttttt t rrrrrr r f ■ tttttt represents the transmit frequency see example 1 ■ t and r represent channe...

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    C - 8 fault finding charts june 2003 ipn: m5000-00-105 fault finding charts the fault finding charts in figures c-1 to c-6 address the faults you are most likely to find. They are: ■ radio cannot be switched on; ■ cannot change channel; ■ no serial communication; ■ receive faults; ■ cannot transmit;...

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    June 2003 ipn: m5000-00-105 fault finding charts c - 9 figure c-1: radio cannot be switched on replace on/off/volume control switch. Yes return to nearest tait dealer yes no check on/off/volume control switch. Function for pins 1 to 4 ok? No battery contacts clean and unobstructed? Clean battery con...

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    C - 10 fault finding charts june 2003 ipn: m5000-00-105 figure c-2: cannot change channel yes return to nearest tait dealer replace channel selector switch. Using the truth table below, is channel selector operation ok? Cannot change channel no 6 3 4 1 2 0 0 0 1 3 0 0 1 0 5 0 1 0 0 9 1 0 0 0 pins c ...

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    June 2003 ipn: m5000-00-105 fault finding charts c - 11 figure c-3: no serial communication yes is the ptt jammed on? Yes make sure ptt is released. Ensure loom is properly fitted into the socket on the pcb. Is the flexible loom inserted correctly? Yes no no is the tx/rx switch on the calibration te...

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    C - 12 fault finding charts june 2003 ipn: m5000-00-105 figure c-4: receive faults no no reprogram radio. Yes no is the radio programmed correctly? No is the radio in lock (command 72)? Yes no does on/off/volume pot vary between 180 ohms to 10k between pin 3 and gnd and between pin 2 and gnd? Yes re...

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    June 2003 ipn: m5000-00-105 fault finding charts c - 13 figure c-5: cannot transmit is rf out assembly ok? No reprogram radio. Yes no is the radio programmed correctly? No is the radio in lock (command 72)? No return to nearest tait dealer cannot transmit yes yes is current greater than 1.5 a (high ...

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    C - 14 fault finding charts june 2003 ipn: m5000-00-105 figure c-6: no transmit audio no is the flexible loom inserted correctly? Yes yes is the flexible loom damaged? When an external accessory is plugged in, is there microphone audio for the accessory? Yes return to nearest tait dealer no transmit...

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    D pa rt servicing the radio this part describes the disassembly and reassembly of tait orca 5000 portable radios and the servicing of some key mechanical and ancillary devices. Information is also provided on ordering spare parts for servicing portable radios. Contents servicing the radio servicing ...

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    D - 2 june 2003 ipn: m5000-00-105 reassembling the radio reassembling the radio reassembling the radio reassembling the radio .............................................................................. .............................................................................. ...................

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    June 2003 ipn: m5000-00-105 servicing the radio d - 3 servicing the radio servicing of tait orca 5000 portable radios is limited to key mechanical and ancillary devic- es. These include: ■ the front panel assembly; ■ the lens (orca 5015/2x/35/40); ■ the ptt keypad; ■ the speaker; ■ the keypad (orca ...

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    D - 4 disassembling the radio june 2003 ipn: m5000-00-105 disassembling the radio removing the front panel from the chassis unscrew the antenna and detach the battery pack. The channel selector and on/off/volume control knobs need to removed before separat- ing the front panel and the chassis. To re...

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    June 2003 ipn: m5000-00-105 disassembling the radio d - 5 figure d-3: removing the front panel from the chassis, using the battery as leverage removing the shield sub-assembly from the chassis remove the plastic speaker pins. Place the radio’s internal assembly on a flat surface with the shield side...

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    D - 6 disassembling the radio june 2003 ipn: m5000-00-105 repeat this on the other side. Remove the microphone grommet by pulling upward (figure d-5). You can now see the bottom surface of the pcb. The basic layout of the pcb is shown in figures d-8 and d-9. Refer to these diagrams for the placement...

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    June 2003 ipn: m5000-00-105 disassembling the radio d - 7 removing the rear panel follow the disassembly instructions and disas- semble the radio to the pcb level. Refer to figure d-10 for the details of the rear panel assembly. Insert a small flat bladed screw driver under the auxiliary dummy rear ...

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    D - 8 replacing key mechanical and ancillary devices june 2003 ipn: m5000-00-105 replacing key mechanical and ancillary devices this section describes the replacement of key mechanical and ancillary devices. These include: ■ lens (orca 5015/2x/35/40); ■ ptt keypad; ■ speaker; ■ lcd display (orca 501...

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    June 2003 ipn: m5000-00-105 replacing key mechanical and ancillary devices d - 9 the hole at the top of the ptt recess. Be sure not to split or otherwise damage it. Replacing the speaker following the disassembly instructions, remove the front panel from the chassis. The speakers sits in the inside ...

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    D - 10 replacing key mechanical and ancillary devices june 2003 ipn: m5000-00-105 figure d-8: bottom surface of the pcb, which is visible when the shield has been removed from the chassis 2 3 4 5 6 7 8 9 10 11 13 12 1 5 antenna connector channel selector switch on/off/volume control switch antenna c...

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    June 2003 ipn: m5000-00-105 replacing key mechanical and ancillary devices d - 11 figure d-9: top surface of pcb, which is visible only when the pcb has been removed from the chassis 1 2 3 4 5 6 7 8 9 antenna connector channel selector switch on/off/volume control switch rf assembly placement auxili...

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    D - 12 replacing key mechanical and ancillary devices june 2003 ipn: m5000-00-105 replacing the shield, user interface pcb and polyester dome (orca 5015/2x/35/40) on orca 5015/2x/35/40 radios the shield, user interface pcb and polyester dome are replaced as one complete assembly. Following the disas...

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    June 2003 ipn: m5000-00-105 replacing key mechanical and ancillary devices d - 13 replacing the chassis following the disassembly instructions, fully disassemble the radio. Discard both the chassis and main seal. Inspect a new main seal to determine orienta- tion and top/bottom surfaces. The tab is ...

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    D - 14 reassembling the radio june 2003 ipn: m5000-00-105 reassembling the radio this section describes the reassembly of the radio once the required units have been serviced. Additional instructions for replacing the following mechanical and ancillary devices are also included: ■ auxiliary flexible...

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    June 2003 ipn: m5000-00-105 reassembling the radio d - 15 fitting the pcb to the chassis and replacing the rf out assembly put the battery contact seal over the battery contacts rather than into the chassis. If you put the seal on the chassis, the contacts will squash the seal. Fit the replacement r...

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    D - 16 reassembling the radio june 2003 ipn: m5000-00-105 figure d-12: assembly of the switches fitting the front panel to the chassis place the radio into the front panel top first, inserting the antenna connector and knob switches through the holes. Gently ease the radio into the front panel until...

  • Page 71

    June 2003 ipn: m5000-00-105 spares kits d - 17 spares kits the following table shows a list of spares kits which are currently available for servicing tait orca 5000 portable radios. Spares kits are designed to service 100 radios, and can be ordered from your local tait dealer. Table d-1: spares kit...

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    D - 18 spares kits june 2003 ipn: m5000-00-105 table d-2: orca 5010/11/30 spares kit (topa-sp-401g) ipn description quantity reference 040-05500-08 volume control switch 10 d-8 (3), d-9 (3) 219-50029-00 rf out assembly 5 d-11 (1) 220-01414-03 aux flex connector pcb 5 d-10 (1) 231-00010-45 channel se...

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    June 2003 ipn: m5000-00-105 spares kits d - 19 table d-3: orca 5035 spares kit (topa-sp-402g) ipn description quantity reference 040-05500-08 volume control switch 10 d-8 (3), d-9 (3) 219-50029-xx rf out assembly 5 d-11 (1) 220-01414-03 aux flex connector pcb 5 d-10 (1) 231-00010-45 channel selector...

  • Page 74

    D - 20 spares kits june 2003 ipn: m5000-00-105 table d-4: orca 5015/2x/40 spares kit (topa-sp-403g) ipn description quantity reference 008-36671-80 lcd display 1 — 040-05500-08 volume control switch 10 d-8 (3), d-9 (3) 219-50029-00 rf out assembly 5 d-11 (1) 220-01414-03 aux flex connector pcb 5 d-1...

  • Page 75

    June 2003 ipn: m5000-00-105 spares kits d - 21 table d-5: orca 5010/11/30 re-skinning kit (topa-sp-404) table d-6: orca 5035 re-skinning kit (topa-sp-405) table d-7: orca 5020/40 re-skinning kit (topa-sp-406) ipn description quantity 311-01049-01 channel knob 1 311-01050-01 volume knob 1 316-06765-0...

  • Page 76

    D - 22 spares kits june 2003 ipn: m5000-00-105 table d-8: orca 5015/2x/35/40 user interface pcb and shield (topa-sp-407) table d-9: orca 5015/21 re-skinning kit (topa-sp-408) ipn description quantity opf200-b ui pcb smt subassembly 1 311-04005-00 ins poly dome for 5015/2x/40 1 319-01026-00 main shie...

  • Page 77

    E pa rt battery packs and chargers this part provides information on the battery packs and chargers available for tait orca 5000 portable radios. The battery packs are not serviceable, and repair of chargers is limited to replacement of the spring contacts, the discharge tact switch and the dc jack....

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    E - 2 june 2003 ipn: m5000-00-105.

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    June 2003 ipn: m5000-00-105 battery packs e - 3 battery packs six battery packs are available for tait orca 5000 portable radios. These battery packs are not serviceable, but their construction and expected life are described below. The battery packs available are: ■ topb100 nicd battery pack; ■ top...

  • Page 80

    E - 4 battery packs june 2003 ipn: m5000-00-105 extending battery shift life battery shift life can be extended by activating economy mode (conventional radios) or by using dynamic power control (trunked radios). During economy mode, the radio cycles between the normal receive state and a stand- by ...

  • Page 81

    June 2003 ipn: m5000-00-105 battery chargers e - 5 battery chargers note: note: note: note: in order to charge topb700 nimh batteries, the charger must have firmware version 2.07 or greater. Topb500 nimh batteries can be charged on chargers with firmware version 2.05 or greater. Three battery charge...

  • Page 82

    E - 6 desktop fast charger june 2003 ipn: m5000-00-105 desktop fast charger the tait orca desktop fast charger (figure e-1) is an intelligent charger that can charge, condi- tion and analyse both nicd and nimh batter- ies of varying capacities. Fast charger operation a circuit diagram of the fast ch...

  • Page 83

    June 2003 ipn: m5000-00-105 desktop fast charger e - 7 micr o ic2 68hc05p6 reset -reset irq -irq pa 7 pa 7 pa 6 pa 6 pa 5 pa 5 pa 4 pa 4 pa 3 pa 3 pa 2 pa 2 pa 1 pa 1 pa 0 pa 0 pb5/sdo pb5/sdo pb6/sdi pb6/sdi pb7/sck pb7/sck gnd gnd osc1 osc1 osc2 osc2 +v +v pc7/vrh pc7/vrh pc6/an0 pc6/an0 pc5/an1 p...

  • Page 84

    E - 8 desktop fast charger june 2003 ipn: m5000-00-105 the discharge circuit is based around a constant current sink. This uses an n-channel mosfet, q6, controlled by an operational amplifier, ic3:b. R41 and r42 are the current sense resistors that allow the op amp to set the current. The nominal di...

  • Page 85

    June 2003 ipn: m5000-00-105 desktop fast charger e - 9 using the fast charger fast charger indicators are described in table e-3. Table e-3: fast charger indicators charging the battery using the fast charger charging using the fast charger involves three stages. ■ the fast charge stage quickly brin...

  • Page 86

    E - 10 desktop fast charger june 2003 ipn: m5000-00-105 to short condition the battery turn off the radio and insert the battery/radio into the fast charger. When the charger led glows red, press the conditioning button until the indicator flashes amber. Release the condi- tioning button. The led wi...

  • Page 87

    June 2003 ipn: m5000-00-105 desktop fast charger e - 11 replacing the spring contacts remove the faulty contacts with a soldering iron and discard. If the replacement spring contacts have a larger diameter and will not fit through the pcb, the holes should be drilled out to 2.2mm. When placing the r...

  • Page 88

    E - 12 desktop trickle charger june 2003 ipn: m5000-00-105 desktop trickle charger the tait orca desktop trickle charger can charge a 1100 mah or 1500 mah nicd battery overnight. It is designed to provide approxi- mately 1450 mah of charge in a 16 hour period. Thus both 1100 mah or 1500 mah nicd bat...

  • Page 89

    June 2003 ipn: m5000-00-105 desktop trickle charger e - 13 figure e-6: circuit diagram of the tait orca desktop trickle charger using the trickle charger the trickle charger is not recommended for nimh battery packs, as they can take up to 24 hours to charge fully and the overall lifetime of your ba...

  • Page 90

    E - 14 desktop trickle charger june 2003 ipn: m5000-00-105 troubleshooting when inserting the battery/radio in the charger, there is no indication on the charger led. ■ check that the battery/radio is seated properly in the charger. ■ check that the charger is properly plugged in and the correct plu...

  • Page 91

    June 2003 ipn: m5000-00-105 multi-charger e - 15 multi-charger the multi-charger (topa-ch-300) is made up of six desktop fast chargers that operate independently of one another. Each multi- charger pcb has an additional diode. Multi-charger operation the operation of the multi-charger is the same as...

  • Page 92

    E - 16 multi-charger june 2003 ipn: m5000-00-105 ■ gently pull the wires through the multi- charger top while aligning the charger with the three screw holes. ■ fasten the charger to the multi-charger top using the three screws. ■ reconnect the red and black wire to the fuse connector. Ensure that t...

  • Page 93

    F pa rt accessories this part describes how to interface accessories with tait orca 5000 portable radios, using the tait orca accessory connector and the 7.5 mm accessory adaptor. Detailed servicing information about the tait orca vehicle kit is also provided on page f-10. A list of audio accessorie...

  • Page 94

    F - 2 june 2003 ipn: m5000-00-105.

  • Page 95

    June 2003 ipn: m5000-00-105 tait orca 5000 accessory connector f - 3 tait orca 5000 accessory connector the tait orca 5000 portable radio has a versa- tile accessory interface on the rear of the radio for connecting external accessories, such as speaker microphones and headsets. There are four tait ...

  • Page 96

    F - 4 tait orca 5000 accessory connector june 2003 ipn: m5000-00-105 accessory connector assembly assemble the accessory connector as shown in figure f-2. The order of assembly is as follows. 1 thread the cable from your accessory through the accessory housing, making sure it goes through in the pro...

  • Page 97

    June 2003 ipn: m5000-00-105 tait orca 5000 accessory connector f - 5 table f-1: accessory connector signal specifications connecting a headset the headset must meet the following basic specifications: ■ speaker impedance: 32 Ω (16 Ω min); ■ speaker power: 1/4 w rms (min); ■ microphone: electret, app...

  • Page 98

    F - 6 tait orca 5000 accessory connector june 2003 ipn: m5000-00-105 accessory connector signal descriptions rx-det-af-acc the rx-det-af-acc line carries unprocessed receive audio from the output of the detector ic. Mod-audio the mod-audio line is used during calibra- tion to set up the modulation b...

  • Page 99

    June 2003 ipn: m5000-00-105 tait orca 5000 accessory connector f - 7 figure f-3: tait orca accessory connector circuit diagram.

  • Page 100

    F - 8 7.5 mm accessory adaptor june 2003 ipn: m5000-00-105 7.5 mm accessory adaptor you can connect non-tait accessories that require a 7.5 mm adaptor to the tait orca portable radio using the 7.5 mm accessory adaptor (topa-aa-005g). Such accessories use 3.5 mm and 2.5 mm phono plugs with 7.62 mm sp...

  • Page 101

    June 2003 ipn: m5000-00-105 7.5 mm accessory adaptor f - 9 figure f-5: tait orca 7.5 mm accessory adaptor circuit diagram.

  • Page 102

    F - 10 tait orca vehicle kit june 2003 ipn: m5000-00-105 tait orca vehicle kit the tait orca vehicle kit provides a secure environment for a tait orca portable radio used in a vehicle. The vehicle kit allows the radio to be connected to the vehicle’s external antenna and also acts as a fast charger ...

  • Page 103

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 11 ensure the vehicle kit release button is down and insert the radio into the radio cavity. Push the radio firmly into place against the locating pegs and radio interface. You should hear the radio snap into place and the release button will pop...

  • Page 104

    F - 12 tait orca vehicle kit june 2003 ipn: m5000-00-105 mobile microphone must be used; and ■ the radio’s speaker will be inoperative when an external speaker has been installed. Volume can be adjusted from the radio’s volume control. The standard installation results in the charger and external sp...

  • Page 105

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 13 servicing the vehicle kit the vehicle kit contains four pcbs, and the following servicing instructions outline the disassembly of the vehicle kit to allow replace- ment of these pcbs. Warning: screw head types there are four different types of...

  • Page 106

    F - 14 tait orca vehicle kit june 2003 ipn: m5000-00-105 reassembling the vehicle kit to assemble the vehicle kit, reverse the disas- sembly process. Note that when doing up the kc30x10 screws the threads in the plastic pa moulding must not not not not be stripped. It is important that the audio pa ...

  • Page 107

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 15 table f-7: vehicle kit spares kit (topa-sp-301) ipn description quantity supplied legend opa-vk-010 top vehicle kit charger pcb 1 f-12 opa-vk-020 top vehicle kit options pcb 1 f-13 opa-vk-030 top vehicle kit accessory probe pcb 5 f-10 opa-vk-0...

  • Page 108

    F - 16 tait orca vehicle kit june 2003 ipn: m5000-00-105 table f-8: vehicle kit reskinning kit (topa-sp-302) ipn description quantity supplied legend 305-00003-00 lens 4 — 305-00004-00 front moulding 4 — 305-00005-00 rear moulding 4 — 305-00006-00 probe moulding 4 — 305-00012-00 auxiliary seal 4 — 3...

  • Page 109

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 17 custom modifications the following information is provided to enable modifications to be made to the stand- ard vehicle kit installation: ■ signal descriptions and specifications for the vehicle kit external connectors; ■ block diagrams of the...

  • Page 110

    F - 18 tait orca vehicle kit june 2003 ipn: m5000-00-105 table f-9: vehicle kit power connector (sk1 on the charger pcb) table f-10: vehicle kit mobile microphone connector (skt1 on the options pcb) table f-11: vehicle kit accessory/data connector (sk3 on the charger pcb) pin signal description 1 n/...

  • Page 111

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 19 figure f-9: vehicle kit interconnection diagram vehicle kit circuit descriptions this section provides an outline of the design and describes the modular assembly of the vehicle kit. The vehicle kit contains four pcbs: ■ the accessory probe an...

  • Page 112

    F - 20 tait orca vehicle kit june 2003 ipn: m5000-00-105 figure f-11: vehicle kit charger probe pcb block diagram vehicle kit charger probe pcb (ipn 220-01564-xx) this pcb provides the interface to the radio battery for charging and is connected to the charger pcb via an 8-way micromatch ribbon cabl...

  • Page 113

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 21 d4 and r46 create a virtual ground (vgnd) and protect the max1627 from over voltages. Conducted noise is filtered by c42, c43 and l5. The blocking diode, d6, stops the radio battery from powering the vehicle kit when the current source is off....

  • Page 114

    F - 22 tait orca vehicle kit june 2003 ipn: m5000-00-105 tions. If the vehicle battery gets below 11 v, the schmitt trigger built around ic2:a will go high, turning on q1 and pulling the reset line low. This will turn off the fast charger to conserve the vehicle battery. The output of ic2:a is also ...

  • Page 115

    June 2003 ipn: m5000-00-105 tait orca vehicle kit f - 23 note that the recommended method for changing the gain of the audio power amplifier is to adjust the ratio of the voltage divider formed by r69 and r68. The second path for the single ended audio signal present at pin 7 of ic2:b is via r78 and...

  • Page 116

    F - 24 tait orca vehicle kit june 2003 ipn: m5000-00-105 mic-d25 line. Thus whenever the radio is in the vehicle kit the internal microphone is disabled. Rs-232 conversion an rs-232 level 3 wire serial port is provided at the db25 connector (tx-out, rx-in, gnd), for use by devices such as data termi...

  • Page 117

    G pa rt additional information this part provides a glossary of terms. Contents glossary glossary glossary glossary ........................................................................................................ ..................................................................................

  • Page 118

    G - 2 june 2003 ipn: m5000-00-105.

  • Page 119

    June 2003 ipn: m5000-00-105 glossary g - 3 glossary note: note: note: note: terms that appear in italics are also defined in this glossary. Active the ‘on’ (asserted) state of a signal or indica- tor. Adc analog to digital converter. An electronic device that outputs binary data dependant upon the m...

  • Page 120

    G - 4 glossary june 2003 ipn: m5000-00-105 new d-clip has a green dot on the outside at the bottom left corner. The d-clip must be checked for compatibility with the chassis before use (see “accessory connector compati- bility” on page g-8). Dac digital to analog converter. An electronic device that...

  • Page 121

    June 2003 ipn: m5000-00-105 glossary g - 5 g-star general electric status and reporting system. Signaling is used to identify individual radio users by assigning a unique number to each radio. This is sent out each time the radio transmits, and is decoded by the dispatcher, giving a visual identific...

  • Page 122

    G - 6 glossary june 2003 ipn: m5000-00-105 programming mode the mode of operation of the radio in which computer equipment can read from and write to the radio database. Pstn public switched telephone network. Quarter turn this is the part of the accessory connector that rotates 90 degrees to lock t...

  • Page 123

    June 2003 ipn: m5000-00-105 glossary g - 7 tcxo temperature compensated crystal oscillator (voltage controlled). The frequency reference for the rf part of the radio. Test mode the operating mode of the radio whereby computer (computer equipment can control various radio functions by sending control...

  • Page 124

    G - 8 accessory connector compatibility june 2003 ipn: m5000-00-105 accessory connector compatibility attempting to use an incompatible accessory connector with a particular chassis will result in damage to both the radio and connector. See “new chassis” on page 5. The following table shows the comp...

  • Page 125

    June 2003 ipn: m5000-00-105 g - 9 notes.