JVC TV-13142 Service Manual page 33

NO PICTURE
Are the Brightness and
Contrast set to minimum ?
Yes
Is the voltage at pins 55,45,44
18,19 of IC601 DC9V ?
Yes
Is the signal VIDEO at pin
57 of IC601 output ?
No
Replace IC604.
TROUBLESHOOTING GUIDE
No
No
Yes
Is the signal Y and CHROMA
at pins 36, 34 of IC601 ?
Yes
Check IC604.
Adjust Brightness and Contrast.
Check UNREG +8V line.
No
Check IC4001 pin 26 signal
VIDEO output.
Yes
Check Q4009.
Check IC4001 pin 28 signal VIDEO
(Input).
TV-13142
TV-13142W
No
33