LG KE990 Service Manual - Page 58

3. TECHNICAL BRIEF MIDI_3.3V C518 C519 4.7u 0.1u C514 C513 0.1u 10u VREG_5V R533 0 C516 C517 4.7u 0.1u VREG_WM_2.7V VREG_MSME_1.8V C520 C521 4.7u 0.1u C532 1u SPK_R FM_AUDIO_R FM_AUDIO_L C541 1u SPK_L C530 12n R510 1K C535 C533 4.7n 1u C536 1u R516 1K C542 4.7n C547 12n R511 MMP_A_LRCLK MMP_A_BCLK MMP_ADI_ADCDAT MMP_ADO_DACDAT MMP_A_MCLK 18K R517 18K MID_MICP C548 1u HP_L C549 1u HP_R CODEC_I2C_SCL CODEC_I2C_SDA C550 NA C551 NA C539 1u C534 1u U502 13 14 DCVDD 26 DBVDD AVDD2 31 AVDD1 7 8 9 LRC BCLK 10 11 ADCDAT DACDAT MCLK 4 5 RIP RIN 6 R2_GPIO3 3 L2_GPIO2 1 LIP 2 LIN 19 AUXL 20 AUXR 15 16 17 CSB_GPIO1 SCLK SDIN WM8983 12 DGND AGND1 28 AGND2 24 VMID 27 MICBIAS 32 29 ROUT1 LOUT1 30 23 ROUT2 LOUT2 25 OUT3 22 21 OUT4 MODE 18 33 PGND R519 100K C524 C525 0.1u 10u FB500 HP_EAR_R HP_EAR_L FB501 MIC2P C543 C544 NA NA C531 NA MIC_PWR SPK_OUT+ SPK_OUT- AUDIO DAC/ADC, AMP etc. (WM8983) CN500 21 19 1 2 3 4 5 FB504 L504 2.2uH VREG_MSMP_2.7V R528 100K Figure . Audio part schematics FM_ANT EAR_MIC_P TV_OUT MIDI_EAR_L MIDI_EAR_R Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 59 - LGE Internal Use Only