NO SOUND
There is no sound output in the AUX function, repair the set according to the following guide.
10-2. AUX FUNCTION
10-2-1. Solution
Replace IC201 on MAIN board.
10-2-2. How to troubleshoot (Countermeasure)
1) Check AUX_L/R signals to IC201 (pin23, 24).
2) Check if MCS_BCK, MCS_LRCK, & MCS_MCLK are entered from IC501 to IC201.
3) Check if ADC/MIC_DATA is entered from IC201 to IC501.
If no signal, check +5 V & +3.3 V(ADC) for IC201. If is NG, replace it a new one.
4) Check the following I2S signal flow from IC501 to IC202.
If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to
the IC is distorted or no signal, replace it with a new one.
5) Check if the digital audio AMP block is okay.
If AMP is damaged, replace it with a new one.
10-2-3. Service hint (Any picture / Remark)
AUX_L/R
IC201
CS5346
ADC/MIC_DATA
MCS_MCLK
MCS_BCK
IC501
MCS_LRCK
MLC3730
MIX_DATA_OUT
< AUX function signal fl ow >
ONE POINT REPAIR GUIDE
AUX
IC202
PS9860
IR AMP
IRS2092+IRF6775
PWM
ADC/MIC_DATA to R212
ADC/MIC_DATA to R212
MCS_BCK to R213
MCS_BCK to R213
MCS_LRCK to R215
MCS_LRCK to R215
MCS_MCLK to R216
MCS_MCLK to R216
< MAIN board bottom view >
3-20
AUX_R to R209
AUX_R to R209
AUX_L to R210
AUX_L to R210
IC201
IC201