Sanyo HVR-DX610 Service Manual page 18

TROUBLE SHOOTING
4. AUDIO (Hi-Fi MODEL)
Is 5V obtained at IC051 pin#1?
YES
Is there SIF signal at IC051 pin#2
in RF mode?
YES
Is there SIF signal out at IC051
pin#30, 31?
YES
Is 12V obtained at IC251 pin#34?
YES
Is 5V obtained at IC251 pin#40?
YES
Is Audio signal output at IC251
pin#16,17?
YES
Is Audio signal output at IC602 pin
#3, 13?
YES
Check Output JACK.
NO
NO
Are CLK and DATA obtained at
IC251 pin#42,43?
NO
Check IC602.
17
NO
Check Power circuit.
NO
Check RF101.
NO
Check IC051.
Check POWER circuit.
YES
Replace IC251.