Panasonic KX-T7603X Service Manual Download

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ORDER NO. KMS0303669C8

Add on Key Module

KX-T7603X

(for Asia, MiddleNear East, Africa, Oceania, Latin America, Russia,

Europe)

2003 Panasonic Communications Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.

Summary of Contents for KX-T7603X

Page 1: ...669C8 Add on Key Module KX T7603X for Asia MiddleNear East Africa Oceania Latin America Russia Europe 2003 Panasonic Communications Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law ...

Page 4: ...ate 47 W mm 178 H mm 213 D mm Base Weight 210g Design and specifications are subject to change without notice 4 INSTALLING For KX T7633 KX T7636 The Add on Key Module has 12 CO buttons These buttons are used to seize an outside line make a call using One touch Dialing or access certain features ...

Page 5: ...1 Open the cover 2 Attach the KX T7603 to your telephone with screws 3 Insert the flat cable into the connector ...

Page 6: ...4 Close the cover 5 DISASSEMBLY INSTRUCTIONS 1 Remove Two Screws A 2 Remove the Connect Plate 3 Remove Screw A 4 Remove the Bottom Cabinet and Top Cabinet Base ...

Page 7: ...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 be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil Flux Recommended Flux Specific Gravity 0 82 Type RMA lower residue non cleaning type Note See ABOUT LEAD FREE SOLDER PbF Pb free ...

Page 9: ...7 TROUBLESHOOTING GUIDE CROSS REFERENCE WAVEFORM 8 BLOCK DIAGRAM 9 CIRCUIT OPERATIONS ...

Page 10: ...t by IC1 That signal goes through the drive digital transistor and connects the key button and LED cathode By pressing the key the drive pulse wave is input to Pin9 Pin11 In order to light the appropriate LED the LED control port is turned ON That result LED is lit by the pulse Driver 10 IC DATA ...

Page 12: ... I Not used Vss Connection 36 P01 I Not used Vdd Connection 37 P00 I Not used Vdd Connection 38 Vdd1 Vdd 39 Vss1 Vss 40 P17 O LED K1 41 P16 O LED K2 42 P15 O LED K3 43 P14 O LED K4 44 P13 O LED K5 11 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 12 CABINET AND ELECTRICAL PARTS LOCATION ...

Page 13: ...13 ACCESSORIES AND PACKING MATERIALS ...

Page 17: ...age measurements are taken with an oscilloscope or a tester with a ground 2 The schematic diagrams and circuit board may be modified at any time with the development of new technology 16 SCHEMATIC DIAGRAM 17 WAVEFORM 18 PRINTED CIRCUIT BOARD 18 1 COMPONENT VIEW 18 2 BOTTOM VIEW Y KXT7603X ...

Page 18: ...B5 A3 A4 A1 A2 B4 B3 Q4 Q3 Q2 Q5 E2 E1 R15 E3 11 1 44 IC1 34 12 D X1 RA1 R4 R3 R2 R1 B6 Q1 B1 R6 R5 R7 18 2 1 CN1 DG C4 R17 R16 PSUP1378Z PbF 17 D3V C5 C3 R8 R9 R11 R12 R13 R14 R10 C2 C1 B2 Marked PbF ...

Page 19: ...CPU ROM F 16kB RAM F 512B GND CN1 TO DPT SCLK TxD RxD BUSY RESET 56k X1 4MHz Function Key 12 LED drive Q1 3 LED drive Key out Q4 Q5 Key out Key in OPDET TO DPT LED CO1 12 2color 3 3V KX T7603X BLOCK DIAGRAM ...

Page 20: ...SW1 CO1 SW2 CO2 SW3 CO3 SW4 CO4 SW8 CO8 SW7 CO7 SW6 CO6 SW5 CO5 SW9 CO9 SW10 CO10 SW11 CO11 SW12 CO12 Q4 1 6 2 5 3 4 Q5 1 6 2 5 3 4 RA1 1 2K 1 2 3 4 5 6 7 8 DG DG D3V D3V D3V DG A1 A2 A3 A4 B1 B2 B3 B4 B5 B6 E1 E2 E3 TP16 TP3 TP7 TP10 TP6 TP8 TP9 TP17 TP18 TP19 TP20 R G G R G R G R R G G R G R G R G R G R G R G R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KX T7603X MAIN BOARD 1 2 ...

Page 22: ...Pin29 of IC1 Pin5 of CN1 Pin6 of CN1 Pin2 of CN1 2 1 Between DPT and T7603 Communication waveform Pin14 of IC1 4 00MHz ...

Page 23: ...4 A1 A2 B4 B3 Q4 Q3 Q2 Q5 E2 E1 R15 E3 11 1 44 IC1 34 12 D X1 RA1 R4 R3 R2 R1 B6 Q1 B1 R6 R5 R7 18 2 1 A CN1 DG C4 R17 R16 PSUP1378Z PbF 17 D3V C5 C3 R8 R9 R11 R12 R13 R14 R10 C2 C1 B2 KX T7603X COMPONENT VIEW ...

Page 24: ...SW12 SW11 SW10 SW9 SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 KX T7603X BOTTOM VIEW ...