Sharp 37GQ-20S Service Manual page 25

Fuse Blown
Replace Fuse
Fuse Blown
again
Check IC701
Normal
Check D701, D702, D703,
D704, C705.
NO RASTER
Check F701
Approx. 0V Abnormal
Check D708, D717
Normal
Check Q601, Check R705, R706,
Check Q601, C711
C711 R715, D706
25
Normal
Check Voltage on C705
(Approx. 325V DC)
Normal
Check Voltage on C711
(Approx. 105V DC)
Normal
Check CRT connector
K1... K5 bias
Normal
Check C878
37GQ-20S
37GQ-21S
Abnormal
Check IC801