Sony RDR-GX315 Service Manual page 65

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No digital audio out
Check the digital audio
setting
Proper vcc of DOL3 (jack PCB)
Proper signal input on DOL4
Proper signal on DOL1
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L 13942296513
Check optical and coaxial output terminal
and passive components aroud them
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Checking
Refer to user manual
Skip setting check (hardware problem)
No
Check Vcc Line
Yes
No
Proper signal on 10 pin of CN3
Yes
No
Replace DOL1
Yes
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8
No
Replace digital main PCB
of Jack PCB
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