Karaoke Flow (Karaoke Model Only) - LG DK763X Service Manual

4. KARAOKE Flow (KARAOKE MODEL ONLY)

Start
Insert the Mic jack
NO
Is the Mic signal at the
IC801 pin3.
YES
YES
Is the Mic signal at the
IC801 Pin 2.
NO
NO Replace IC801.
Does the Mic
Check pattern.
signal input the IC601
Pin224.
YES
Is the Mic signal at the
IC801 Pins3, 7 normal?
NO
Replace the mic jack
Replace IC601.
Replace the VR801.
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