LG CJ45 - Tuner; aux Function Check; Tuner Function Check

TUNER FUNCTION CHECK
Check tuner module(TU200)
operation.
Check tuner module voltage
(Pin4: +3.3 V).
YES
YES
NO
Check IC500 Pin P7, P8, P10, P11.
Check tuner module data.
YES
NO
Refer to function check.
8. TUNER FUNCTION CHECK
3-24
ELECTRICAL TROUBLESHOOTING GUIDE
7. TUNER / AUX FUNCTION CHECK
FUNCTION CHECK
Replace IC201.IC500(MLC3730) output data.
Check IC202
Pin18,19:ADC, MIC_DATA SDOUT,
Pin17: BCK, Pin16: LRCK,
Pin15: MCLK.
Check IC202
Pin8: ADC +3.3 V,
Pin13, 14, 25: DVCC +3.3 V.
Check CN102 Pin13,14: 12 VA.
Check JK200,TU200.
Check
IC500(MLC3730)
input data.
Check IC202
(PCM1865) Pin18, 19
output data.
Check
IC202 Pin8: ADC +3.3 V
Pin13,14,25: DVCC
+3.3 V.
Check IC202
(PCM1865) Pin27, 28,
29, 30 input.
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES YES
YES
OK
jomi