Sharp LC-26DV24U

TROUBLESHOOTING GUIDE
Is there signal at
pins 113, 114, 115 and
116 of IC4001?
Is there signal at
pins 1 and 7 of IC8501?
Does CD8501 connected?
Check pins 1 and 7 of IC8501
and peripheral circuit.
Yes
NO SOUND DVD/CD ANALOG
AUDIO
No
Change DIGITAL PCB.
Change IC4001.
Connected CD8501.
Is there signal at
pin1 of CP8501?
Check line circuit IC4001
to CP8501.
Yes
NO SOUND DVD/CD DIGITAL
AUDIO
No
Change IC4001.
Yes
No
No
Yes
No
Yes
Change DIGITAL PCB.
Is there signal at
pin122 of IC4001?
E-9