Sony RDR-VX521 - Page 120

7-24
Check the digital audio
setting
Proper vcc of DOL3
Check peripheral parts of optical
and coaxial output terminal
Refer to user manual
No
Checking
Check Vcc Line
Proper signal input on DOL4
No
No
Proper signal on DOL1
Replace DOL1
Yes
Yes
Yes
Skip setting check (hardware problem)
No digital audio out
Check IC201 Pin #235