Karaoke Flow (Karaoke Model Only) - LG DKE573XB Service Manual

4. KARAOKE Flow (KARAOKE MODEL ONLY)

Replace the IC508.
Check pattern.
Start
Insert the Mic jack
Is the Mic signal at the
IC801 pin3.
YES
Is the Digital
NO
signal output at the
IC508 Pin1.
YES
NO
Does the Mic
signal input the IC501
Pin224.
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