When playing DISC, no audio output
NO
IC501(209, 210, 212, 213)Check IC501 circuits
Audio signal normal?Concerned audio
YES
IC503(5, 6)NOCheck IC503.
SCL, SDA signal normal?IC501 SCL, SDA signal
YES
IC715(7, 8)NOCheck IC5715.
SCL, SDA signal normal?SCL, SDA signal
YES
Check IC715 and
Other circuits
No DIGITAL output
NO
IC501(215)
signal normal?Check IC301
YES
Check JK703(2)
Signal wave
3-6 |