LG KU250 Service Manual - Page 142

7. CIRCUIT DIAGRAM 1 2 ANT101 ANT102 C450 A 22p SW100 G2 ANT RF G1 1p C437 L101 NA C102 NA KMS-507 Rev.D VREG_RF_SMPS L108 15nH Rev.B B C117 10p C D E GSM/EDGE WCDMA Rev.D F L404 1.8nH FL104 4 PGND 3 ANT RX 1 TX 2 ACMD-7602 0.5p L125 C D E 3 4 5 C101 56p L102 100nH U500 Rev.C ANT 11 19 VDD 7 8 GND1 GND2 10 GND3 12 GND4 13 GND5 15 17 GND6 20 GND7 21 GND8 23 GND9 GND10 GSM900_RX1 5 6 GSM900_RX2 1 GSM1800_RX1 2 GSM1800_RX2 3 GSM1900_RX1 GSM1900_RX2 4 WCDMA2100 9 D5011 CTRL1 18 CTRL2 22 16 GSM900_TX 14 GSM18001900_TX ANT_SEL0 ANT_SEL1 GSM 1800/GSM 1900 RX GSM 850/ GSM 900 RX LOW HIGH GSM 850/GSM 900 TX/ WCDMA LOW GSM 1800/GSM 1900 TX HIGH LOW LOW HIGH HIGH 1K 1K R100 R101 ANT_SEL0 ANT_SEL1 C110 C109 33p 33p GSM_PA_RAMP L115 18nH C124 100p Rev.D L403 1.5nH L116 10nH C123 0.01u C121 33u +VPWR DCS PCS EGSM C439 5p C105 NA C440 5p Rev.C 0.5p C190 C442 5.6p C116 NA C443 5.6p NA C191 L405 C120 NA 2.7nH L111 5.6nH L406 2.7nH 100ohm R107 C137 NA C441 5.6p C438 100p C138 NA C139 68p C134 0.01u C136 0.01u 8.86dB Rev.1.0 R108 51 DCS_PCS_TX 91 R110 91 R111 VAPC 20 VBATT 17 VCC1B 6 VCC1A 2 15 DCS_PCS_OUT 3 DCS_PCS_IN U101 11 EGSM_OUT EGSM_IN 4 19 RSVD_GND ENABLE 18 21 P_GND SKY77318 BS 1 FL101 R113 100ohm C149 15p GSM_PA_EN 45 O1 G3 1 IN G2 G1 32 EFCH897MTDB1 7.5dB R112 39 7 GND1 8 GND2 GND4 GND3 10 GND5 12 GND6 13 GND7 GND8 GND9 5 9 16 14 R117 100ohm C153 15p GSM_PA_BAND GSM_PA_BAND MODE LOW HIGH GSM DCS/PCS R114 100ohm R115 100ohm GSM_TX C162 3.3p 51R119 4 1 50OHM OUT +VPWR C155 C158 4.7u 15p L123 1nH IN 2 3 COUP 20dB U102 CP0402A1950DNTR C164 0.5p R121 R120 130 47 7dB R122 130 PWR_DET Rev_1.0 C165 1p WS2512_TR1G U103 10 VCC2 1 VCC1 9 GND4 RFIN 2 8 RFOUT GND1 3 7 6 GND3 11 GND2 BGND VCONT 4 5 VREF C159 15p +VPWR C154 1.5p L122 NA Rev_1.0 C157 10nH FL102 4 5 EFCH1950TDF1 O1 G3 1 IN G2 G1 32 C192 100p 4 5 PA_R0 TR100 KRX102U 3 2 1 PA_ON Rev.B VREG_TCXO_2.85V C170 0.1u VREG_TCXO_2.85V L128 1.8nH TCXO X100 DSA321SCE-19.2M 7 NC3 8 NC4 NC2 6 NC1 5 3 OUTPUT GND 2 VCC VCONT 4 1 19.2MHz 100ohm R124 TRK_LO_ADJ C174 10p Rev.D L407 2.7nH C181 0.1u C182 1000p 0.01u C183 VREG_BT_2.85V TCXO_PM C185 100p R128 100K VCC C186 1000p RTR6275_TCXO C187 1000p C188 0.01u 5 2 4 TCXO_BT U104 3 F TC7SH04FU GND 1 2 LG(42)-A-5505-10:01 4 5 6 7 8 9 14 15 16 A C103 180p TX_IP DCS_PCS_TX GSM_TX Rev.C C106 8.2p C107 6p C112 12p 55 ENV_OUT 46 44 HB_RF_OUT1 HB_RF_OUT2 43 LB_RF_OUT1 42 LB_RF_OUT2 ENV_LNP 2 1 ENV_LNN TX_IP 51 50 TX_IN TX_QP 53 TX_QN 52 C104 180p TX_IM TX_QP C108 180p B C113 180p TX_QM TX_ON 24 RF_ON TCXO 7 RTR6275_TCXO TX_AGC_ADJ DAC_REF C118 12p 56 VCONTROL 54 DAC_REF 14 SBDT U100 5 VTUNE1 18 VTUNE2 12 RX_IP 13 RX_IN C114 3300p C115 1000p VTUNE-Connected directly to GND RX_IP RX_IM SSBDT_RTR R103 12K (1%) R104 680 (1%) C119 22p 3 R_BIAS1 27 R_BIAS2 31 30 GCELL_INP GCELL_INN 32 33 EGSM_INP EGSM_INN 38 DCS_INP 39 DCS_INN 36 37 GPCS_INP GPCS_INN 22 23 CAL_INP CAL_INN 26 WLNA_IN RTR6275 RX_QP 10 RX_QN 11 PWD_DET_IN 40 21 TEST VDDA1 4 VDDA2 6 VDDA3 8 VDDA4 9 VDDA5 15 VDDA6 16 VDDA7 19 VDDA8 20 28 VDDA9 41 VDDA10 VDDA11 45 VDDA12 47 VDDA13 48 VDDA14 49 22p C126 0.1u C127 22p C128 0.1u C129 22p C130 0.1u C131 22p C132 RX_QP RX_QM PWR_DET Rev.B C R105 5.1 R433 2.7 Rev.D R434 2.7 R106 5.1 VREG_RF_SMPS L114 47nH C122 22u C189 22p Rev.C L119 47nH VREG_SYNTH_2.6V D VDD_RX 22p C140 22p C141 100p C142 29 WLNA_OUT 34 WMIX_INP 35 WMIX_INN 25 GND 57 PGND 17 VDDM C135 0.1u R109 10 L120 47nH VREG_RF_SMPS C143 0.1u C144 22u 22p C147 Rev.D R116 VREG_MSMP_2.7V 100ohm E C150 C151 C152 1000p 22p 0.01u Rev.D VDD_RX C156 100p L121 1nH F Rev.D C161 2.2p L409 4.7nH Rev.D C444 2.2p L408 10nH 54 1 G2 O2 FL103 IN G1 O1 EFCH2140TDE1 23 L410 4.7nH L411 4.7nH C445 2.2p BLUETOOTH M100 LBRQ-2B43A NA C169 ACS2450HBAXX C R118 FEED NC1 NC2 L126 0 NA ANT103 ANT 16 BT_CLK C171 1000p C172 1u 9 CLK_REF 3 VCC_OUT SBST 4 SBCK 11 SBDT 12 BT_SBST BT_SBCK BT_SBDT C173 2.2u 2 VDD_INT SYNC_DET_TX_EN 5 BT_TX_RX_N VREG_MSMP_2.7V R123 10 VDD_MSM 13 RX_BB_TX_BB D BT_DATA 0 VREG_BT_2.85V 14 VDD_BAT 7 XTAL_IN 1000p C176 TCXO_BT C179 100p C177 0.1uF C180 2.2u C178 100p 20 PGND4 19 PGND3 18 PGND2 17 PGND1 GND4 15 GND3 8 GND2 6 GND1 1 Section Designer Date MAR. 07. 2007 Checked Approved Sign & Name KANG. H. S MODEL U25K0U/K2U52050 E Sheet/ Sheets 1/4 DRAWING RF LG Electronics Inc. DRAWING NO. LGMC REV_1.2 LG Electronics Inc. - 143 -