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- KX-TG9341T - Cordless Phone - Metallic
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Panasonic KX-TG9341T - Cordless Phone - Metallic Service Manual - 4 Technical Descriptions
7
KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T
4 Technical Descriptions
4.1.
US-DECT Description
The frequency range of 1.92 GHz-1.93 GHz is used. Transmitting and receiving carrier between base unit and handset is same fre-
quency. Refer to Frequency Table (P.77).
4.1.1.
TDD Frame Format
4.1.2.
TDMA system
This system is the cycles of 10 ms, and has 6 duplex paths, but maximum duplex communication path is 5 because of dummy
bearer use.
In 1 slot 417
µs, the 10 ms of voice data is transmitted.
• 2 - Handsets Link
Traffic Bearer
A link is established between base unit and handset.
The state where duplex communication is performed.
Handset doesn't make up duplex in no free RF channels because of interference. (*1)
Dummy Bearer
Base unit sends Dummy-data to the all stand-by state handsets.
Handsets receive that data for synchronization and monitoring request from the base unit.
Base unit doesn't send Dummy bearer in no free RF channels because of interference. (*1)
Note:
(*1) It is a feature under FCC 15 regulation and for interference avoidance.
In the case of checking RF parts, it is better in least interference condition.
Summary of KX-TG9341T - Cordless Phone - Metallic
Page 1
© 2008 panasonic communications co., ltd. All rights reserved. Unauthorized copying and distribu- tion is a violation of law. Order no. Km40801513ce f13 telephone equipment model no. Kx-tg9341t kx-tg9342t kx-tg9343s kx-tg9343t kx-tg9344t kx-tga931s kx-tga931t expandable digital cordless answering sy...
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2 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
Page 3: Table of Contents
3 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t table of contents page page 1 safety precautions----------------------------------------------- 4 1.1. For service technicians --------------------------------- 4 2 warning ------------------------------------------------...
Page 4: 1 Safety Precautions
4 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 1 safety precautions 1.1. For service technicians • repair service shall be provided in accordance with repair technology information such as service manual so as to pre- vent fires, injury or electric shock, which can be...
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5 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 2.2.1. Suggested pbf solder there are several types of pbf solder available commercially. While this product is manufactured using tin, silver, and copper (sn+ag+cu), you can also use tin and copper (sn+cu), or tin, zinc,...
Page 6: 3 Specifications
6 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 3 specifications note: • design and specifications are subject to change without notice. Note for service: • optional headset: kx-tca60, kx-tca86, kx-tca92, kx-tca93, kx-tca94, kx-tca95.
Page 7: 4 Technical Descriptions
7 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4 technical descriptions 4.1. Us-dect description the frequency range of 1.92 ghz-1.93 ghz is used. Transmitting and receiving carrier between base unit and handset is same fre- quency. Refer to frequency table (p.77). 4....
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8 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.1.3. Signal flowchart in the radio parts reception a voice signal from tel line is encoded to digital data "txdata" by dsp (ic501) in a base unit. Then txdata goes to rf part, and it's modulated to 1.9 ghz. The rf signa...
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9 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.2. Block diagram (base unit_main) kx-tg9341/9342/9343/9344 block diagram (base unit_main) operational p.C. Board d101 charge_contact + - mic sp x501 13.824 mhz ant 2 ant 1 tel jack l1t l1r dcp dcm dc jack rly side tone ...
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10 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.3. Block diagram (base unit_rf part) v_pa v_rf note: (*1) a ntenna type: wired dipole antenna k x-tgtg9341/9342/9343/9344 block diagram (base unit_rf part) pll 13. 824 mhz ic701 ant1 ( *1) ant2 ( *1) cont ro l logi c m...
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11 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4. Circuit operation (base unit) general description: (dsp, flash memory) is a digital speech/signal processing system that implements all the functions of speech compression, record and playback, and memory management...
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12 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.3. Power supply circuit function: the power supply voltage from ac adaptor is converted to the desired voltage of each block. Circuit operation: • q300 and ic300: 4.0 v dcdc converter • ic331: 3.3 v regulator.
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13 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.3.1. Charge circuit the voltage from the ac adaptor is supplied to the charge circuits..
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14 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.4. Reset circuit function: this circuit is used to initialize the microcomputer when it incorporates an ac adaptor. Circuit operation: when the ac adaptor is inserted into the unit, then the voltage is shifted by ic3...
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15 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.5. Telephone line interface telephone line interface circuit: function • bell signal detection • on/off hook and pulse dial circuit • side tone circuit bell signal detection and off hook circuit: in the idle mode, q1...
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16 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.6. Auto disconnect circuit function: this circuit is used to detect the fact that another telephone connected to the same line is off-hook while the unit is in a receiving status or ogm transmitting status. Circuit o...
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17 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.7. Parallel connection detect circuit function: in order to disable call waiting and stutter tone functions when using telephones connected in parallel, it is necessary to have a circuit that judges whether a telepho...
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18 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.4.8. Calling line identification (caller id)/call waiting caller id function: caller id the caller id is a chargeable id which the user of a telephone circuit obtains by entering a contract with the telephone company t...
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19 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t call waiting caller id calling identity delivery on call waiting (cidcw) is a class service that allows a customer, while off-hook on an existing call, to receive information about a calling party on a waited call. The t...
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20 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.5. Block diagram (handset) v_pa v_rf 2.7 v ic374 ic371 ic501 ic541 mip min spp1 lcd backlight spn ant_light hsm headset_det spp2 sppn ci ci vccpa vcca vcc pdn dsp reset chg_ctl chg_det wp, clk, data keystorobe_a~e keyi...
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21 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.6. Block diagram (handset_rf part) v_pa v_rf (* 1) ant enna ty pe ( di ffer ence bet ween base uni t and handset i n radi o par ts ) ant1: wi red di pol e ant enna k x-tga931 block diagram (handset_rf part ) ant2: pat ...
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22 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.7. Circuit operation (handset) 4.7.1. Construction the circuit mainly consists of dsp and rf part as shown in the block diagram. 4.7.1.1. Dsp: ic501 function • battery low, power down detect circuit • ringer generation...
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23 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.7.2. Power supply circuit voltage is supplied separately to each block..
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24 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.7.3. Charge circuit when the handset is put on the cradle of the base unit, the power is supplied from charge+ and charge- terminals to charge the battery via r366 or q361. The voltage between charge+ and charge- flows...
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25 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.7.5. Sending signal the voice signal from the microphone is input to dsp (90, 91). Cn431 is the headset jack. When the headphone is connected, the r436/r437 detects it. The input from the microphone of the handset (mim...
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26 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.8. Circuit operation (rf part) general description: rf part includes transmitter and receiver functions. Digital signals (mainly voice data) that come from dsp, are modulated and are transmitted. On the other hand, rec...
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27 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.9. Circuit operation (charger unit) the voltage from the ac adaptor is supplied to the charge circuits. Main charge (180~250 ma at the battery) of maximum 7- hours is started soon after the handset is placed on the cha...
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28 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 4.10. Signal route.
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29 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t rf part signal route.
Page 30: Components
30 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 5 location of controls and components 5.1. Controls 5.1.1. Base unit 5.1.2. Handset 5.2. Display.
Page 31: 6 Installation Instructions
31 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 6 installation instructions 6.1. Connections 6.2. Battery 6.2.1. Battery installation and replacement.
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32 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 6.2.2. Battery charge note for service: the battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully charged. In that case, by recharging the battery as m...
Page 33: 7 Operating Instructions
33 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 7 operating instructions 7.1. Programmable settings 7.1.1. Programming by scrolling through the display menus.
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34 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 7.1.2. Programming using the direct commands.
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35 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
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36 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 7.2. Error messages.
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37 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 7.3. Troubleshooting.
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38 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
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39 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
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40 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
Page 41: 8 Test Mode
41 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8 test mode 8.1. Adjustment and test mode flow chart 8.1.1. Tx-cw mode for base unit note: (*1) refer to check table for rf part (p.58)..
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42 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.2. Test link mode for base unit note: (*1) refer to test link mode for handset (p.46). If you can not proceed to the next step, refer to registering a handset to a base unit (p.56). (*2) refer to check table for rf p...
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43 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.3. Adjustment mode for base unit cross reference check and adjust frequency (base unit) (p.74).
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44 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.4. Tx-cw mode for handset note: (*1) lcd displays the channel number. (exception: default/ ch00 = 0ch.) (*2) refer to check table for rf part (p.58)..
Page 45
45 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.5. Rx-cw test mode for handset note: (*1) lcd displays the channel number. (exception: default/ ch00 = 0ch.) (*2) refer to check table for rf part (p.58)..
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46 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.6. Test link mode for handset note: (*1) lcd displays the channel number. (exception: default/ ch00 = 0ch.) (*2) if can not proceed to the next step, refer to registering a handset to a base unit (p.56). (*3) for fac...
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47 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 8.1.7. Adjustment mode for handset cross reference (*1) adjust battery low detector voltage (handset) (p.74) note: (*2) these are the default values. (*3) these values may not be fixed depending on the battery strength..
Page 48: 9 Service Mode
48 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 9 service mode 9.1. How to clear user setting units are reset to the factory settings by this operation (erase recorded voice messages, stored phone numbers, caller list and etc.). This operation should not be performed ...
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49 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 9.1.2. Handset note: (*1) be sure to short the battery terminals of the handset with a lead wire, etc. For 2 seconds for discharge after removing the battery..
Page 50: 10 Troubleshooting Guide
50 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10 troubleshooting guide 10.1. Troubleshooting flowchart cross reference: check power (p.51) check playback (p.53) check record (p.52) check battery charge (p.53) check link (p.54) check the rf part (p.55) check handset ...
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51 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.1. Check power cross reference: power supply circuit (p.12) reset circuit (p.14) note: flash memory is ic601. Dsp is ic501. (*1) refer to specifications (p.6) for part number and sup- ply voltage of ac adaptor. (*2)...
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52 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.2. Check record base unit a) not record greeting message b) not record incoming message c) how to change the auto disconnect activation (time) some telephone company lines (fiber or cable) on hook and off hook volta...
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53 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.3. Check playback cross reference: power supply circuit (p.12) note: flash memory is ic601. Dsp is ic501. (*1) refer to circuit board (base unit_main) (p.89). 10.1.4. Check battery charge note: flash memory is ic601...
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54 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.5. Check link note: flash memory is ic601. Dsp is ic501. (*1) refer to finding out the defective part (p.55). Cross reference: check the rf part (p.55).
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55 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6. Check the rf part 10.1.6.1. Finding out the defective part after all the checkings or repairing 1. Re-register the checked handset to the checked base unit, and regular hs to regular bu. Note: (*1) hs: handset (*...
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56 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6.1.1. Registering a handset to a base unit 10.1.6.1.2. Deregistering a handset 10.1.6.1.3. Deregistering all handsets by the base unit.
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57 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6.2. Rf check flowchart each item (1 ~ 6) of rf check flowchart corresponds to check table for rf part (p.58). Please refer to the each item. Note: (*1) refer to things to do after replacing ic or x’tal (p.74)..
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58 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6.3. Check table for rf part note: (*1)(*4)(*5) adjustment and test mode flow chart (p.41) (*2)(*3) rf-dsp interface signal wave form (p.60) (*6) handset reference drawing (p.76) (*7) base unit reference drawing (p....
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59 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6.4. Test range check circuit block which range is defective can be found by the following check. Chart1: setting of tx power and rx sensitivity in range confirmation tx test, rx test note: (*1) adjustment and test ...
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60 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.6.5. Rf-dsp interface signal wave form control signal for base unit (normal mode) control signal for base unit (normal mode) pin number ic701 ic501 (bu) 21 24 22 19 23 30 24 29 25 28 control signal for handset (acti...
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61 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t base unit tr-data signal (normal mode) base unit tr-data signal (normal mode) base unit sends a dummy slot and receves all 6 slots every frame in normal mode. Pin number (base unit) ic701 ic501 (bu) test tx_cw 21 24 norm...
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62 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.1.7. Check handset transmission cross reference: signal route (p.28) 10.1.8. Check handset reception cross reference: signal route (p.28) note: when checking the rf part, refer to check the rf part (p.55). 10.1.9. Che...
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63 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.2. How to replace the flat package ic 10.2.1. Preparation • pbf (: pb free) solder • soldering iron tip temperature of 700 °f ± 20 °f (370 °c ± 10 °c) note: we recommend a 30 to 40 watt soldering iron. An expert may b...
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64 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.2.3. How to install the ic 1. Temporarily fix the flat package ic, soldering the two marked pins. *check the accuracy of the ic setting with the corresponding soldering foil. 2. Apply flux to all pins of the flat pack...
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65 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.3. How to replace the llp (leadless leadframe package) ic 10.3.1. Preparation • pbf (: pb free) solder • soldering iron tip temperature of 700 °f ± 20 °f (370 °c ± 10 °c) note: we recommend a 30 to 40 watt soldering i...
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66 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.3.4. How to install the shield case note: • if you don’t have special tools (ex. Hot air disordering tool), conduct the following operations. • shield case’s no. : pnmc1002z 1. Put the shield case. 2. Solder the surro...
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67 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10.3.6. How to install the ic 1. Place the solder a little on the land where the radiation gnd pad on ic bottom is to be attached. 2. Place the solder a little on the land where ic pins are to be attached, then place the...
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68 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 11 disassembly and assembly instructions 11.1. Disassembly instructions 11.1.1. Base unit.
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69 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
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70 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 11.1.2. Handset.
Page 71
71 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 11.1.3. Charger unit.
Page 72
72 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 11.2. How to replace the handset lcd.
Page 73
73 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t.
Page 74
74 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 12 measurements and adjustments 12.1. Things to do after replacing ic or x’tal 12.1.1. Preparation equipment: frequency counter check point for measurement: bck checking tolerance: 13.824 mhz ± 100 hz (base unit)/13.824 ...
Page 75
75 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 12.2. Base unit reference drawing when connecting the simulator equipment for checking, please refer to below. Note: (*1) is referred to no.3 of check table for rf part (p.58). Spectrum analyzer frequency counter (*1) bc...
Page 76
76 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 12.3. Handset reference drawing when connecting the simulator equipment for checking, please refer to below. Note: (*1) is referred to no.3 of check table for rf part (p.58). A d427 d426 l431 d423 d424 ra403 c436 c435 r4...
Page 77
77 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 12.4. Frequency table ch. (hex) tx/rx frequency (mhz) channel 0 00 1928.448 channel 1 01 1926.720 channel 2 02 1924.992 channel 3 03 1923.264 channel 4 04 1921.536.
Page 78
78 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t memo.
Page 79: 13 Schematic Diagram
79 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13 schematic diagram 13.1. For schematic diagram 13.1.1. Base unit (schematic diagram (base unit_main)) 13.1.1.1. Acoustic testing mode notes: 1. Dc voltage measurements are taken with voltmeter from the negative voltage...
Page 80
80 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.2. Schematic diagram (base unit_main) nc l473 nc l472 spn 4.7k r533 4.7k ra501 1 2 3 4 5 6 7 8 nc r660 nc r661 nc r662 nc r663 v_pa (vpa) v_rf syn_data syn_clk syn_out syn_en tx_data rx_data rf_rstn bclk radio_en slot...
Page 81
81 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 10k *r364 1k *r365 k1000p *c361 3.3k *r361 6.8u *l361 6.8uh *l371 k0.01 c305 120 r308 220 r304 220 r303 dcdc_ic 1 on/*off 2 vss 3 vout 5 vin 4 ext 22uh l300 c304 k1.0 p101 22 10k r113 100k r141 *c132 k0.01 k0.01 c142 560...
Page 82
82 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.3. Schematic diagram (base unit_rf part) 3.0v 4.0v 3.2v ic701 ic741 390 r736 k1uf c743 k0.47uf c742 1uh l721 atstp v_pa v_rf bclk syn_en syn_clk syn_data syn_out slot_ctrl radio_en tx_data rx_data rf_rstn k0.1 c702 k0...
Page 83
83 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.4. Schematic diagram (base unit_operation) 1 1 2 8 1 2 memo 1 2 5 1 2 redial 1 2 2 1 2 9 1 2 conf 1 2 6 1 2 fls 1 2 3 1 2 0 1 2 * 1 2 7 1 2 mute 1 2 4 1 2 sha 1 2 ans2 1 2 stop 1 2 erase 1 2 rec 1 2 chk 1 2 hold 1 2 s...
Page 84
84 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.5. Schematic diagram (handset_main) 10k r534 nc r546 nc c546 nc r547 r501 k0.01 c512 k1.0 *c562 nc r540 nc r525 10k r541 k0.1 c504 k0.1 c596 k0.1 c515 k0.1 c541 nc c525 k0.1 c506 k0.1 c540 k0.1 c386 j100p c542 4.7k ra...
Page 85
85 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t *cn431 headset_jack 1 4 2 3 5 spp spm micm micp vbat1 vbat2 rx tx nc c436 nc c422 nc c432 2.2k *r434 nc *r431 1k *r433 nc l511 100k r509 33k r526 2.2m r377 270k r543 10 r508 k0.1 c526 nc r505 nc r506 nc r507 pdn nc c543 ...
Page 86
86 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.6. Schematic diagram (handset_rf part) 2.7v 3.1v 3.1v ic701 ic741 390 r736 k1uf c743 k0.47uf c742 1uh l721 a tstp v_p a v_rf bclk syn_en syn_clk syn_d a t a syn_out slo t_ctrl radio_en tx_d a t a rx_d a t a rf_rstn k0...
Page 87
87 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 13.7. Schematic diagram (charger unit) j1 2 1 tp3 g tp2 tp1 tp4 r1 10 d1 a k f1 schematic diagram (charger unit).
Page 88
88 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t memo.
Page 89: 14 Printed Circuit Board
89 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14 printed circuit board 14.1. Circuit board (base unit_main) 14.1.1. Component view kx-tg9341/9342/9343/9344 circuit board (base unit_main (component view)) pqup11552 kx-tg6311/21/tg9331/41/61/71h kx-th1221/11/01h wbx01...
Page 90
90 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.1.2. Bottom view kx-tg9341/9342/9343/9344 circuit board (base unit_main (bottom view) ) dcm green power c-power dcm2 dcp2 dcp l1r tel yellow l1t tip c_dcp c_dcm ring spp vcc sp spn charge+ charge- chg ant1_hot ant1_gn...
Page 91: Ic741
91 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.2. Circuit board (base unit_rf part) kx-tg9341/9342/9343/9344 circuit board (base unit_rf part (component view)) r736 r715 r781 r763 r772 r762 r761 r771 d771 r735 r734 r733 r732 r731 r730 c739 c737 c710 c715 c706 c705...
Page 92
92 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t memo.
Page 93
93 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.3. Circuit board (base unit_operation) 14.3.1. Component view a wbx01 wbx02 10 1 6 1 kx-tg9341h pbf pqup11555z pnlp1014z kx-tg9341/9342/9343/9344 circuit board (base unit_operation (component view)).
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94 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.3.2. Bottom view kx-tg9341/9342/9343/9344 circuit board (base unit_operation (bottom view)) a down rpt skip up msg1 msg2 led901 led902 led903 led904 locat/int ans vcc conf mute fls sp2 sp hold msg inuse redial ans2 me...
Page 95
95 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.4. Circuit board (handset_main) 14.4.1. Component view kx-tga931 circuit board (handset_main (component view)) rf_vcc (2.7 v) dsp_vcc (2.7 v) v_back light (5.0 v) ci vbat1 2.0~2.9 v pdn (power down) rst (reset) bclk (...
Page 96
96 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.4.2. Bottom view left lcd menu right up talk off back next sp down pause 1 2 3 4 5 6 7 flash 0 mic 8 # hold a 9 led551 led552 led553 led554 kx-tga93 r pbf pqup11558z led561 led557 cn3 led556 led555 kx-tga931 circuit b...
Page 97
97 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.5. Circuit board (handset_rf part) kx-tga931 circuit board (handset_rf part (component view)) r736 r715 r781 r763 r772 r762 r761 r771 d771 r735 r734 r733 r732 r731 r730 c739 c737 c710 c715 c706 c705 c707 c703 c751 c70...
Page 98
98 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 14.6. Circuit board (charger unit) 14.6.1. Component view 14.6.2. Bottom view j1 r1 d1 a pqup11532z pbf pqlv30055 pqlv30056 circuit board (charger unit (component view)) tp4 tp3 1 2 j1 d1 a f1 pbf pqlv30055 pqlv30056 pqu...
Page 99
99 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 15 appendix information of schematic diagram 15.1. Cpu data (base unit) 15.1.1. Ic501 note: • the mark “*” in the i/o column means the port is controlled by the firmware. Pin description i/o high high_z low 1 gndpa gnd -...
Page 100
100 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 15.2. Cpu data (handset) 15.2.1. Ic501 pin description i/o high high_z low 1 gndpa gnd -- -- gnd 2 spoutp a.O -- -- -- 3 bclk a.O -- -- -- 4 nc a.I -- -- normal 5 xin a.I -- -- -- 6 xout a.O -- -- -- 7 vdd vdd -- -- -- ...
Page 101
101 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 15.3. Explanation of ic terminals (rf part) 15.3.1. Ic701.
Page 102
102 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 15.4. Terminal guide of the ics, transistors and diodes 15.4.1. Base unit 15.4.2. Handset 15.4.3. Charger unit.
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103 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16 exploded view and replacement parts list 16.1. Cabinet and electrical parts (base unit).
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104 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.2. Cabinet and electrical parts (handset) note: (*1) this cable is fixed by welding. Refer to how to replace the handset lcd (p.72). (*2) refer to handset (p.102) of terminal guide of the ics, transistors and diodes....
Page 105
105 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.3. Cabinet and electrical parts (charger unit).
Page 106
106 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.4. Accessories and packing materials 16.4.1. Kx-tg9341t.
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107 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.4.2. Kx-tg9342t.
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108 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.4.3. Kx-tg9343s/t.
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109 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.4.4. Kx-tg9344t.
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110 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.5. Replacement parts list 1. Rtl (retention time limited) note: the “rtl” marking indicates that its retention time is limited. When production is discontinued, this item will con- tinue to be available only for a sp...
Page 111
111 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t ic300 c0dbagz00023 ic s ic331 c0dbfgd00017 ic ic501 c2hbby000094 ic (*1) ic601 pnwitg9341th ic (*1) ic701 c1cb00002852 ic (*2) ic741 c0cbabe00029 ic (transistors) q111 2sc6054jsl transistor(si) q141 b1acgp000008 transis...
Page 112
112 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.5.1.3. Operational p.C. Board parts 16.5.2. Handset 16.5.2.1. Cabinet and electrical parts 16.5.2.2. Main p.C. Board parts note: (*1) when you have replaced ic501, ic541 or x501, make adjustments. Refer to check and ...
Page 113
113 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t (*2) when replacing ic701, refer to how to replace the llp (leadless leadframe package) ic (p.65). (*3) when replacing the handset lcd, see how to replace the handset lcd (p.72). Safety ref. No. Part no. Part name & des...
Page 114
114 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.5.3. Charger unit 16.5.3.1. Cabinet and electrical parts 16.5.3.2. Main p.C. Board parts 16.5.4. Accessories and packing materials note: (*1) you can download and refer to the operating instruc- tions (instruction bo...
Page 115
115 kx-tg9341t/kx-tg9342t/kx-tg9343s/kx-tg9343t/kx-tg9344t/kx-tga931s/kx-tga931t 16.5.4.3. Kx-tg9343s/t 16.5.5. Kx-tg9344t 16.5.6. Screws 16.5.7. Fixtures and tools note: when replacing the handset lcd, see how to replace the handset lcd (p.72). Y.S/n kxtg9341t kxtg9342t kxtg9343s kxtg9343t kxtg9344...