Sound - LG FH6 Service Manual

NO SOUND
There is no sound output in the AUX function.
4-2. AUX FUNCTION
4-2-1. Solution
Check IC201 (ADC IC) on MAIN board.
4-2-2. How to troubleshoot (Countermeasure)
1) Check AUX L/R signal of IC201. (pin23, 24)
If there is no signal, check JK201 or AUX source set.
2) Check clock signal (BCK/ LRCK/ MCLK) of IC201. (pin42, 43, 44)
If there is no signal, check IC501. (MCS IC)
3) Check VCC_5V, VCC_3V3 of IC201.
If VCC_5V is abnormal, check IC305.
If VCC_3V3 is abnormal, check IC304.
4) Check output data of IC201. (pin41)
If there is no signal, replace IC201.
5) If all signal is OK, check AMP block. (go to 3-1)
4-2-3. Service hint (Any picture/ Remark)
ONE POINT REPAIR GUIDE
< MAIN board top view >
3-14
IC201 IC201
(CS5346) (CS5346)