Karaoke Flow - LG DK7711PM Service Manual

4. KARAOKE Flow (KARAOKE MODEL ONLY)
Replace the IC5K1.
Check pattern.
Start
Insert the Mic jack
Is the Mic signal at the
IC801 pin3.
YES
Is the Digital
NO
signal output at the
IC5K1 Pin1.
YES
NO
Does the Mic
signal input the IC501
Pin152.
YES
Replace IC501.
NO
Is the Mic signal at the
IC801 Pin 2.
NO
Is the Mic signal at the
IC801 Pins3, 7 normal?
Replace the VR801.
3-10
YES
Replace IC801.
NO
Replace the mic jack