Panasonic KX-TG9341T Service Manual - Page 85

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) C377 K0.1 R377 2.2M R376 1.0M C379 K0.1 R379 2.2M R378 1.0M C544 K0.1 C543 NC KX-TG9341T/KX-TG9342T/KX-TG9343S/KX-TG9343T/KX-TG9344T/KX-TGA931S/KX-TGA931T C509 NC C243 NC *R431 NC C508 6.3V 10uF R508 10 C503 K1.0 C594 NC C526 K0.1 PDN R526 33k R505 NC R506 NC R507 NC R509 100k RX TX UART *R437 100k C436 NC *R436 1k *R433 1k *C433 K6800P R417 390 *R434 2.2k 6.3V 10uF C417 NC L511 AVR, PDN_IC IC371 NC 4 ONOFF 3 R375 NC VSS 2 VOUT VIN 5 1 2.7V 2.7V 3.1V C416 K5600P C374 K0.1 Voice circuit SPPP SPPN TEST SIGNAL FREQUENCY: 1kHz SP phone RX (MIC Mute: ON) 1+ 2- 1.8Vp-p/8 (Vol. Max) SP_PHONE D427 12 C427 10p D426 12 C426 10p L431 NC L432 NC *C435 10uF *L434 RA403 3 2 4 1 68 *R435 NC *C434 10p C432 NC C422 NC C421 K1.0 Headset TX 50mVp-p/600 IN *CN431 1 2 3 4 5 HEADSET_JACK SPP RECEIVER 1+ 2- Headset RX 170mVp-p/150 (Vol. Max) Handset RX (MIC Mute: ON) 590mVp-p/150 (Vol. Max) SPM D424 12 D423 12 C414 RA401 3 2 4 1 1k K6800P C415 RA402 3 2 4 1 2.2k K6800P R374 220k IC374 2.0V_Reset 1 OUT 4 VSS 2 VDD 3 NC C413 NC D413 12 C412 NC D412 12 C411 NC L413 NC L412 NC MICM MICM-1 MIC-TP 2 1 MIC MIC-TP MICP MICP-1 Handset TX 88mVp-p/600 IN SP phone TX 30mVp-p/600 IN C371 K1.0 R543 270k C373 330u 6.3 C372 K1.0 DC/DC step-up circuit 3.0V IC372 3K A4 2.6~3.0V L373 10uH VBAT1 VBAT2 2S NC 5 1G D6 F301 5.6n BATTP VSS1 VSS2 1 VOUT EXT 5 2 VDD 3 ON/*OFF VSS 4 3.1V IC373 BATTN C365 NC C362 K0.1 C361 330u 6.3 C366 K0.1 R370 1.2 D361 KA R368 10k R369 33k Q364 B C E R367 120 D364 AK L4.3V Charging control circuit C B E R366 3.3k Q361 R361 47k L351 NC CHG1 R354 NC C354 NC C353 NC C351 NC R362 560 R363 47k Q362 B C E Q531 C B E L352 NC R531 NC C352 NC CHG2 D531 NC K C531 K0.1 R532 NC C363 K0.1 C364 NC A Charging detection NC: No Components KX-TGA931 SCHEMATIC DIAGRAM (Handset_Main) 85