LG KG280 Service Manual - Page 43
Test Point, Circuit, Waveform
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4. TROUBLE SHOOTING (2) Checking FEM & Mobile SW TEST POINT SSWW560000..AANNTT SW600 SW600.RF VC_GSMV8C5_0E/EGGSSMM((VVCC21) VVCC__DDCCSSP/PCCSS((VVCC12) C630 CC663411 CIRCUIT FL600 FFLL660000.1.10 (C(6C3653)5) FFLL660000..512 (C(6C2642)4) WAVEFORM TP600 TP601 TP602 R604 0 R625 0 C649 5.6p R609 0 R603 NA R606 NA R610 NA FL301. 10 AVNTC__1SWD2CDSCPSC/PSCS ANVVTCC_2S_WE1GGSSMM850/EGSM Low Low SW600 RF500 ANT ENWY0004501 G2 G1 RF C615 22p ANT_SW2 ANT_SW1 R616 R617 100ohm 100ohm FL600 20 GND7 19 GND6 GND5 18 GND4 16 13 GND3 11 GND2 GND1 9 15 VC2 VC1 14 LSHS-M085FJ GSM850_900_TX 12 GSM1800_1900_TX 10 GSM1900_RX_OUT2 GSM1900_RX_OUT1 8 7 GSM1800_RX_OUT2 GSM1800_RX_OUT1 6 GSM900_RX_OUT2 5 4 GSM900_RX_OUT1 3 GSM850_RX_OUT2 GSM850_RX_OUT1 2 1 ANT 17 C630 C631 39p 39p ANT SW Control GSM850/EGSM & DCS/PCS RX Mode Graph 2 GSM850/EGSM_TX DCS/PCS_TX GSM_RX DCS_RX PCS_RX ANT_SW1 HIGH LOW LOW LOW LOW Table 4-1 ANT_SW2 LOW HIGH LOW LOW LOW LGE Internal Use Only - 44 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
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