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Troubleshooting
5-2 No Raster (Sound OK)
Check
Fusible Resistance
Abnormal
Normal
Check
voltage of
heater
Normal
Check
CRT and FBT
Normal
Check / Replace
IC201
5-2
http://www.79wl.com
No Raster
(Sound OK)
Check
Abnormal
RK,GK,BK Signal
output from
CRT PCB
Abnormal
Check
the signal output
from IC201 Pin
63
Abnormal
Check tuner B+
and Main CVBS
Check
Normal
R.G.B Signal
input to CRT PCB
Abnormal
Check
R.G.B Signal
Output from
IC201
Normal
Check
Q202, Q203, Q204,
Q207, Q209, Q213,
Q206, Q208, Q210
Check
the fusible resistance
of abnormal volatge line
Abnormal
Check
B+
(200V, 16V)
Normal
Check
Q501 and re-adjust
Screen Voltage
Samsung Electronics
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