Sony RMT-D240A - Troubleshooting - Key;Remote Errors

7-1
RDR-VX555
7. TROUBLESHOOTING
No Power Detected
F1S01
BD01~04, ZD1S01~2
SHORT and OPEN
Check feedback IC1S01
Change short or opened parts
Change fuse
Check the voltage f RIS02,
RIS03, and DIS05
Replace Q1S01
NO
NO
Voltage at
Collector of
Q1S01
NO
YES
YES
YES
Operation of
Q1S01
NO
YES