LG KG280 Service Manual - Page 48
TEST POINT, CIRCUIT, Waveform
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4. TROUBLE SHOOTING (2) Checking Mobile SW & FEM TEST POINT SSWW560000..AANNT SW600 SW600.RF VC_GSMV8C5_0E/EGGSSMM((VVCC21)) VVCC__DDCCSSP/PCCSS((VVCC12) C630 C6C36141 FL500 Figure 8 FLF6L0600.10.10 (C6(3C56) 35) FLF6L0600.50.12 (C6(2C46) 24) CIRCUIT TP600 TP601 TP602 R604 0 R625 0 C649 5.6p R609 0 R603 NA R606 NA R610 NA 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 Waveform ANT_SW1(VC_GSM850/EGSM) Graph 5(a) GSM850/EGSM Tx mode ANT_SW1(VC_GSM850/EGSM) Graph 5(b) DCS,PCS Tx mode Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 49 - LGE Internal Use Only
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