Troubleshooting - Sony RDR-GXD455 Service Manual

6. TROUBLESHOOTING

No Pow er Detected
No
F1S01
Yes
Yes
BD01-04, ZD1S01-2
SHORT and OPEN
No
Voltage at
No
Collector of
Q1S01
Yes
No
Operation of
Q1S01
Yes
Check feedback IC1S01
Change fuse
Change short or opened parts
Check the voltage f RIS02,
RIS03, and DIS05
Replace Q1S01
6-1
RDR-GXD455