LG KG280 Service Manual - Page 88

7. CIRCUIT DIAGRAM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10V Over 10V Over 2V8_VEXT 2V8_VMEM 2V85_VSIM VBAT 1V8_VRTC 1V8_VCORE VBAT URT100 A 3G 2.5G 1 GND GND 2 RX RX 3 TX UFLS TX 4 NC1 5 ON_SW ON_SW VBAT VBAT 6 7 PWR NC2 8 URXD NC3 9 UTXD NC4 10 DSR 11 RTS 12 CTS DSR_TP USC4_TP USC1 USC2 RPWRON DSR USC5 USC4 B C D E F C HSL D JTAG E TRACE32(20 Pin) C102 C103 0.1u 22p C101 0.1u C106 C107 0.1u 22p C100 10u C104 22p ECTH0004807 C105 0.1u C108 22p R100 10K C109 0.1u VBACKUP 2V8_VEXT 2V8_VMEM 1V8_VCORE 2V75_VVCXO ATLAS + BLUETOOTH + MP3 RING TONE A + FM Radio + Speaker Phone U12 T11 B11 U13 F15 E15 D1 A10 VCORE4 VPEG VCORE2 VCORE3 VCORE1 VDDRTC T9 VBAT3 VBAT8 VBAT21 VBAT22 VBAT11 VBAT12 E6 VSIM_2 R101 NA _MIDI_CS L1 J1 H1 K1 A4 A6 M1 A9 C1 P1 N1 2V8_VEXT 2V75_VABB 2V5_VMIC 2V85_VSIM VMEN4 VMEM2 VMEM3 VMEM1 VEXT2 VEXT3 VEXT02 VEXT1 ADD00 K7 J6 ADD0 ADD01 ADD02 K5 H7 ADD1 ADD2 C11 C110 1u ADD03 ADD04 G4 G5 ADD3 ADD4 VEXT01 VMEM R13 G17 C111 1u C112 2.2u ADD05 ADD06 G9 H8 ADD5 ADD6 VABB VCORE U11 P16 C113 1u C114 1u B ADD07 ADD08 G8 F9 ADD7 ADD8 VMIC VVCXO F16 R14 C115 1u C116 1u VVCXO : Required External Capactor 470nF(C115) ADD09 ADD10 F7 F8 ADD9 ADD10 VSIM A11 ADD11 ADD12 E9 E12 ADD11 ADD12 DATA0 DATA1 D9 E8 DATA00 DATA01 ADD13 ADD14 E16 F11 ADD13 ADD14 DATA2 DATA3 C9 A8 DATA02 DATA03 2V8_VMEM ADD15 ADD16 E11 D16 ADD15 ADD16 DATA4 DATA5 C8 B8 DATA04 DATA05 ADD17 ADD18 D14 D11 ADD17 ADD18 DATA6 DATA7 E7 A7 DATA06 DATA07 U100 ADD19 ADD20 D12 D13 ADD19 ADD20 DATA8 DATA9 C7 B7 DATA08 DATA09 _CS1 1 A1 VCC 8 ADD21 ADD22 E10 ADD21 ADD22 DATA10 DATA11 C6 B6 DATA10 DATA11 ADD21 2 B1 Y1 7 _LCD_CS C KEY_COL0 T6 U5 KEYPADCOL0 DATA12 DATA13 D6 A5 DATA12 DATA13 _MIDI_CS 3 Y2 B2 6 KEY_COL1 KEY_COL2 U6 T7 KEYPADCOL1 KEYPADCOL2 DATA14 DATA15 C5 DATA14 DATA15 4 GND A2 5 ADD22 KEY_COL3 KEY_COL4 U7 KEYPADCOL3 KEYPADCOL4 NHWR D5 D4 _UBS _LBS _UBS NL27WZ32USG C117 KEY_ROW0 T5 U4 KEYPADROW0 NLWR NWR C4 B5 _WR _RD _LBS _WR 0.1u KEY_ROW1 KEY_ROW2 R8 KEYPADROW1 KEYPADROW2 NRD NROMCS D3 _ROM_CS1 _RD _ROM_CS1 X100 3 4 R107 KEY_ROW3 KEY_ROW4 R6 R7 KEYPADROW3 KEYPADROW4 T10 OSCIN NRAMCS NGPCS0 B3 C3 NGPCS1 A2 _RAM_CS1 _ROM_CS2 _RAM_CS1 R103 NA R104 NA _ROM_CS2 _CS1 2 1 10M 26M_DBB U10 B1 OSCOUT CLKIN NDISPLAYCS GPO_2 C10 G2 PCM_EN R105 NA A22_H D 32.768KHz MC-146_7pF C120 C119 C118 1000p C141 R106 100ohm C142 C2 NC1 D8 E1 NC2 NC3 GPO_3 GPO_4 H3 H4 GPO_7 GPO_8 H2 H6 PRE_CHARGE_R HEADSET_EN JACK_LDO_EN SPK_SEL EXXY0004601 NA NA NA NA F1 F3 NC4 NC5 GPO_9 GPO_10 J3 J4 ANT_SW1 ANT_SW2 G1 G7 NC6 NC7 GPO_11 GPO_16 J2 J5 _BT_RST PA_EN H5 J9 NC8 NC9 GPO_17 GPO_18 L7 L4 PA_BAND _MIDI_RST J12 K12 NC10 NC11 GPO_19 GPO_20 K3 M6 S_EN S_DATA L5 L6 NC12 NC13 GPO_21 GPI K2 E14 S_CLK L8 M8 NC14 NC15 M9 P7 NC16 NC17 P10 R2 NC18 NC19 U101 AD6720 ABBRESET GPO_24 P12 P11 INT GPIO_4_INT H10 H9 BSDI1 BSDO1 L10 L9 R108 ABBRESET 0 E R9 T3 NC20 NC21 CSDO CSDI1 K14 K15 T4 NC22 CSDI2 CSDO_2 M16 N16 VIBRATOR DEBUG_RX M2 N4 GPIO_0 GPIO_1 BSDO2 BSDI2 K11 K10 _WAIT DEBUG_TX N3 N2 GPIO_2 GPIO_3 MCLKEN CLKOUT_GATE L12 L13 MCLKEN R128 SLIDE NA TOUCH_INT FB100 N8 P9 GPIO_5 GPIO_6 BSOFS2 BSIFS2 K9 K8 _MIDI_IRQ HOST_WAKEUP P2 P3 GPIO_7 GPIO_8 BSIFS1 BSOFS1 J11 J10 F CAM_HOLD 13M_AIT_DBB R1 T1 GPIO_9 GPIO_10 VCXOEN CLKON B10 B9 CLKON DBB_CLKON 2V8_VEXT D100 LCD_RESET A22_LL R3 T2 GPIO_11 GPIO_12 ASFS2 ASFS1 J14 J13 ASFS DBB_CLKON 1 3 CLKON CHG_DET CAM_RST U1 P5 GPIO_13 GPIO_14 ASDO1 ASDI1 J8 J7 R109 2 BT_MAIN_CLK_EN TOUCH_EN LCD_ID TOUCH_DAT TOUCH_CLK TOUCH_EN TOUCH_DAT TOUCH_CLK U2 R4 GPIO_15 GPIO_16 P6 E5 GPIO_17 GPIO_22 ASDI2 ASDO2 H12 H11 DBBON PWRON U15 U14 NA RPWRON D101 1 RPWRON R110 KDR331V 10K SIM_RST TOUCH_LED E3 D2 GPIO_23 GPIO_24 TXON GPO_1_TXON N15 N14 TXON 3 2 RPWRON VCHARGE 1V8_VRTC SIM_DATA SIM_CLK DSR E2 E4 SIMDATAOP SIMCLK B2 R10 GPIO_32 RXON GPO_0_RXON M12 N12 CSFS2 M11 M10 RXON R130 10K KDR331V R111 100K C VBAT 2V8_VEXT LCD_LDO_EN F14 H13 GPO_5 LIGHT1 CSFS1 RESET R12 A3 R112 200 _RESET _RESET R127 100K R113 NA R114 2.2K KEY_BACKLIGHT LCD_DIM_CTL C123 1u C124 1u J15 P8 LIGHT2 LIGHT3 R5 T12 GPO_22 GPO_23 D17 C15 VMEMSEL REF NRESET GPO_6_ASM M15 L15 ASM MCLK L14 M14 CLKOUT_MCLK REFBB A15 E17 ASM CLKOUT ASM 13MHz C121 47n C122 47n C127 0.1u C125 4.7u C14 A13 REFOUT TEMP1 A14 B14 TEMP2 AUXADC1 AFCDAC PA C16 A16 IP IN B16 B17 IP 2V8_VCAM C126 IN C128 C129 AFC TX_RAMP VCHARGE T13 C12 AUXADC2 VRTC QP QN A17 T15 QP QN R124 1u 47p 0.068u GATEDRV GATEDRV ISENSE A12 C13 VCHG GATEDRIVE SPWR2 SPWR1 P13 M17 NA D R117 82K ISENSE VBATSENSE B13 F17 ISENSE VBATSENSE AIN1P AIN1N N17 P17 VINNORP VINNORN BATT_TEMP R118 0 B12 F5 REFCHG BATTYPE AIN2N AIN2P R17 L16 R119 AUXIN AUXIP JACK_DETECT BT_WAKEUP R120 0 F2 F6 GPIO_18 GPIO19_TMS AIN3P AIN3N L17 H16 4.7 C130 REC_P BT_LDO_EN JTAGEN R122 0 JTAGEN KEY_ROW0 G3 F4 GPIO_20 GPIO_21_TDI T16 U17 JTAGEN KEYOUT AOUT1P AOUT1N K17 P15 AOUT2P2 AOUT2P1 R16 R15 SPKP_P C131 C132 C133 C134 R123 4.7 R125 39p C135 REC_N C136 USC0 POWERKEY TCK M5 L3 KEYON USC0 AOUT2N1 AOUT2N2 P14 H17 AUXOP 39p 39p 39p 39p NA 39p 39p TCK TMS USC_1 USC_2 USC3 M7 L2 USC1 USC2 AOUT3P AOUT3N J17 G11 AUXON AUXOP AUXON TMS TDI USC3 USC4 M3 N6 USC3 USC4 TDO_ABB TMS F13 E13 E AGND11 AGND34 AGND35 LGND AGND33 AGND02 AGND03 GND55 GND53 SGND1 GND1 GND56 AGND4 GND10 GND11 GND62 GND8 GND51 AGND2 GND7 GND3 GND52 GND61 AGND01 GND2 GND4 GND9 VSSRTC GND63 AGND12 GND54 AGND32 SGND2 AGND05 AGND36 AGND31 DGND AGND04 AGND06 TDI USC5 CLK32K N5 USC5 USC6 TDI_ABB TCK_ABB F12 TDO1 TDO1 R126 C137 N9 D7 G6 A1 M4 N7 U3 C138 C139 C140 G14 G15 G12 G13 M13 K13 G16 L11 U9 J16 T17 U16 U8 K16 B15 B4 K4 D10 K6 D15 P4 C17 H15 T8 T14 H14 N13 G10 R11 N10 N11 F10 TRACE32(14 Pin) NA 0.1u 39p 39p 39p F OJ100 OJ101 1 2 3 4 5 6 7 8 9 10 11 LG(42)-A-5505-10:01 LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 89 - LGE Internal Use Only