Samsung WS28V53NS8XXEC - Manual (Page 45)

5-2 No Picture
Troubleshooting
5-2 Samsung Electronics
No Picture, but sound is in normal operation
Turn the VR of FBT
, higher screen
voltage and Check the Deflection is in Normal Operation (If the deflection is in operation, flyback signal is appeared)
Check
CRT PCB RK, BK, GK
Check
IC201S #31
Check
Heater V
oltage
Check
HIC202, HIC203,
HIC204 Output
Check CRT and FBT
Check CRT and FBT
Check
200V
, 16.5V Line
Check
IC201S #63
or #59
Replace IC201S
Check
Tuner CVBS Output
Check IC301
Check IC803
Normal
Normal
Normal
Normal
Normal
Replace IC201S
Replace DZ202
Normal
Normal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Normal
Check 8V
Check DZ202