Toshiba RD-XS24SB Service Manual page 26

Troubleshooting
AV1, AV2 (CVBS) output error
-AV1 ; 30 pin of SIC02 and 19 pin of AV1
-AV2 : 29 pin of SIC02 and 40 pin of AV2
5-6
1 pin and 5 pin in CON03 of
jack PCB has normal
level?
Yes
Analog signal are
Inputted normally
5pin of SIC05
Yes
Analog signal are
out normally
SIC01-29(AV2),30(AV1)
Yes
Check the connection between
SIC01 and SCART Jack
No
Check Main PCB
No
Check the connection between 1 pin
and 5 pin of CON03 in Jack PCB and SIC01
Check the power
No
supply to 2, 4, 6pin of SIC01?
Check the I2C lin2
(between SIC01-32, 33
and MIC01(Pin 16,18)
No
Yes
Check the SMPS
(AL5.8V)