LG KE600 Service Manual - Page 98
Bluetooth trouble
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5. Trouble shooting 5.13 Bluetooth trouble Check Points -A condition of Bluetooth Antenna soldering -Balun filter is correctly working -Bluetooth data is perfectly flowed -Power and clock signals are supplied in U202 BLUETOOTH USIF_TXD USIF_RXD R205 0 R206 0 2V72_IO 1V8_MEM R201 0 C201 0.1u C202 0.1u TP2T0P1202 I2S1_CLK I2S1_WA I2S1_RX I2S1_TX NC3 J1 J9 NC4 VDDPCM E9 PCMIN G9 PCMOUT E8 PCMFR1 PCMCLK D8 VDDUART D9 UARTRXD H9 UARTTXD J7 J8 H8 UARTRTS UARTCTS G8 NC1 A1 NC2 A9 2V65_BT 1V5_CORE 1V8_MEM VBALUN C220 0.1u C221 0.1u C222 0.1u 0.1u C219 C223 1.5p TP203 TP204 TP205 TP206 TP207 TP208 TP209 C224 0.1u C225 0.01u B6 A7 TDO B4 TDI B7 TMS A6 TCK TRST_ B9 RTCK A5 JTAG_ F1 D2 VDDSUP VDDCREG A8 B3 VDD_1 F9 VDD_2 B5 VDDC1 G2 VDDC2 H4 VDDPMREG VDDRF E1 VDDRFREG1 E2 VDDRFREG2 H1 VDDPLL J6 VCOCAP1 H6 VCOCAP2 C226 1000p VSS2 VSS3 TX_CONF_P0_14 P1_6 TXA1 C9 SCL0_P0_13 C8 PCMFR2_SDA0_P0_12 F8 SLEEPX_P0_15 C2 CLK32_P1_5 WAKEUP_HOST_P1_8 B1 WAKEUP_BT_P1_7 B2 RESET_ D1 U202 RFOUT H5 PMB8753 A4 PAON A3 PSEL0 B8 PSEL1 A2 TX_CONF_RXON VSSVCO F2 VSSRF1 F4 VSSRF2 E5 VSSRF3 F5 VSSRF4 E4 R207 0 TP210 BT_VCXO_EN CLK32K BT_RESETn J4 RFIO J5 RFIOX J2 TXAX H3 TXA2 H7 LOAD H2 CLKIN_XTAL F6 VSS5 E6 VSS4 D4 VSS1 C1 J3 G1 D5 D6 BT_CLK VBALUN C230 100p L202 2.2nH L203 2.2nH C229 2.2p FL201 1 4 UB B2 2 DC 3 B1 5 G1 6 G2 DBF71B601 NC1 NC2 FEED ACS2450HBAM6 BT201 Figure 30 Bluetooth circuit Checking Points C222 C202 U202 C201 C230 BT201 FL201 R207 C220 C221 Figure 20. Bluetooth Part - 99 - C635
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