LG KG200 Service Manual - Page 42

4. Troubleshooting Network problem E600 Antenna P55-02B1-01 2 1 C611 0.5pF C0402 L604 1.5nH L0402 C628 1pF C0402 P.1 BANDSW_DCS L607 0R L0402 C614 N.C. C0402 U601 4 2 J601 6 5 MM8430-2610RA1 14 13 GND5 GND14 3 1 C622 N.C. C0402 C620 22pF C0402 9 ANT 6 8 12 GND1 GND2 GND3 11 G_RX D_TX 5 1 D_RX TR SWITCH ESHS-C085TK VBAT C601 100nF C0402 C602 27pF C0402 C603 6pF C0402 C604 22pF C0402 C658 1nF C0402 C605 220pF C0402 R604 15K R0402 R603 10K R0402 PA_EN P.1 VAPC P.1 VBAT 4 CEXT 5 TXEN 3 C606 1nF C0402 U600 2 BS VRAMP 6 RA605 3 1 1 1 2 C612 N.C. C0402 L603 1.8nH L0402 2 L605 12nH L0402 G_TX 7 VC1 10 C619 22pF C0402 VC2 4 C621 22pF C0402 VC3 2 C624 22pF C0402 3 P_RX L611 1.8nH L0402 C631 N.C. C0402 L613 1.5nH L0402 C629 N.C. C0402 L615 0R L0402 C652 N.C. C0402 2G 13 VCCOUT C613 1pF C0402 C615 6pF C0402 C616 N.C. C0402 16 DPCS_OUT AWT6166 AWT6166 10 EGSM_OUT GND GND 8 VCC2 18 VCC2 9 11 12 B606 MMZ1005S121A 1 2 L0402 LB_TX P.1 B607 BLM15BB750SN1 1 2 L0402 HB_TX P.1 B608 BLM15BB750SN1 1 2 L0402 PCS_RX P.1 C657 1nF C0402 G1 5 Z602 1 IN 1960MHZ 4 OUT OUT 3 L609 4.7nH L0402 G1 5 2 G Z601 1 IN 1842MHZ 4 OUT OUT 3 L612 4.7nH L0402 G1 5 2 G Z600 1 IN 942MHZ 4 OUT OUT 3 L614 18nH L0402 C630 2p7F C0402 C632 2p7F C0402 C635 2p7F C0402 C636 2p7F C0402 C638 15pF C0402 C641 15pF C0402 14 GND 15 17 19 GND GND GND GND 1 DPCS_IN 7 EGSM_IN 4 2 ATT_3DB RA608 3 1 4 2 ATT_5DB + + VCCRF C625 2u2F C0603 VBAT_RF C646 33pF C0402 C623 2u2F C0603 C626 100nF C0402 C627 33pF C0402 C600 100nF C0402 L602 8.2nH L0402 C607 1p5F C0402 L600 0R L0402 C617 N.C. C0402 U602 1 VCCTXVCO 2 CREG1 3 VBAT1 4 VCCRF 5 PCSRF 6 PCSRFB 7 DCSRFB 8 DCSRF 9 GSMRFB 10 GSMRF 11 AMPSRF 12 AMPSRFB 13 CREG2 14 ENREG P.1,4 VCXOEN VBAT B610 VBAT_RF 1 2 + C650 47uF/6.3V CAP-ACASE + C660 BLM15BB750SN1 47uF/6.3V CAP-ACASE L0402 VBAT_RF C639 33pF C0402 VCCSYN C647 + 2u2F C0603 C648 33pF C0402 15 VBAT2 16 VCCRFBUF 17 GNDRFBUF 18 RFVCOP 19 GNDRFVCO 20 RFTUNE 21 VCCRFVCO 22 GNDRFCP 23 RFCPO 24 VCCRFCP 25 VCCSYN 26 GNDSYN 27 VCXOCXR 28 VCXOCAP + + TXODPCS 56 GNDDUMMY 55 54 GNDBALUN GNDTXVCO1 53 TXOGSM 52 GNDTXCP 51 TXCPO 50 VCCTXCP 49 VCCIF 48 VCCIQ 47 46 I IB 45 Q 44 43 QB VCCRF C618 100nF C0402 GNDB 57 MT6129 C651 1n5F C0402 + C643 2u2F C0603 C644 33pF C0402 AUXOUT 42 SDATA 41 CLK 40 39 EN ENRFVCO 38 37 VCCD GNDD 36 35 VCCMOD GNDMOD 34 VCXOFRQ 33 GNDVCXO 32 REFOUT 31 30 VCCVCXO XTAL 29 VCCSYN C634 2u2F C0603 VCCSYN C633 100nF C0402 C640 2u2F C0603 C637 220pF C0402 R615 1K R0402 C655 5p6F C0402 C642 220pF C0402 U603 TCVCXO_26MHZ VT-R32250FH 3 OSCOUT GND 2 PMIC_VTCXO C645 10nF C0402 R611 10R R0402 4 VCC VCONTROL 1 I P.1 IB P.1 Q P.1 QB P.1 SDATA P.1 SCLK P.1 LE P.1 RFVCOEN P.1 VDD 26Mz P.1 R610 1K R0402 C649 10nF C0402 VAFC P.1 - 43 -