Sharp 37GQ-20S - No Raster Troubleshooting

25
37GQ-20S
37GQ-21S
NO RASTER
Check F701 NormalFuse Blown
Normal
Replace Fuse
Fuse Blown
again
Check IC701
Normal
Abnormal
Check Q601,
C711
Check D708, D717
Normal
Check R705, R706,
R715, D706
Normal
Check CRT connector
K1... K5 bias
Normal Abnormal
Check C878 Check IC801Check Q601, C711
Check Voltage on C705
(Approx. 325V DC)
Check D701, D702, D703,
D704, C705.
Check Voltage on C711
(Approx. 105V DC)
Approx. 0V