Samsung CL21M6WKX Service Manual page 10

Troubleshooting
5-2 No Video (Sound OK)
Abnormal
Check RK,GK,BK
Signal
Nornal
Abnormal
Check the
Voltage of heater
Check/Replace
Nornal
R418,R522,R523
Check
CRT and FBT
Abnormal
Check/Replace
IC201S
Abnormal
5-2
Nornal
Check R,G,B
Signal into CRT
PCB
Abnormal
Check IC201S
Pin 51,52,53
(R.G.B)
Nornal
Check IC201S
Pin50(IK,V-GUARD)
Nornal
Check
CRT and FBT
Nornal
Check IC501
B+(180V-B)
Check IC301
Abnormal
+
B Volt
-
Check the Abnormal
resistance of R519
Nornal
Check/Replace
D407,FBT
Nornal
IC301 Check/Replace
Abnormal
D406,R414,D405,R413
Check/Replace
Replace
R519
Samsung Electronics