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5. Troubleshooting
5-1 No Picture or Raster (TV Mode)
Abnormal
Check/Replace
H001, H011
Abnormal
Check /Replace
ICV01
Check IC05 (SI3090C)
Samsung Electronics
Check the
H011 Short/Open
Normal
Check/Replace H011
Check the voltage
of tuner (Pin2)
Check/Replace
ICV01
Normal
Check the Signal
of tuner
Check/Replace
H003
Abnormal
Check the VIC/D Voltage
of IC501 Pin 6,34
(Normal: 9V)
Check the voltage
of Tuner
Check the voltage
of Tuner
Check
the voltage of IC01, IC03
VDD
Normal
Abnormal
Check the output
of H001 IF
Normal
Check
Abnormal
the signal Output
of H011 Pin 7
Normal
Check
Abnormal
the signal Input
to ICV01 Pin 47
Normal
Check
the Signal output to
ICV01 Pin 40
Normal
Check the signal
Abnormal
output to H003 Y/C
output
Normal
Check
Abnormal
the signal input to
IC501 Pin 4,5(Y/C)
Normal
Check
Abnormal
the voltages of CRT Drive
(220V)
Normal
Check the signal
Abnormal
input to IC501 Pin 20,
22,24 R/G/B output to CRT
Cathode
Abnormal
Check the main power
Abnormal
Check the voltage
of H001 5V, 9V, 33V
Check Pin 19, 20
(I2BUS)
Abnormal
Check
the Bais voltage of
Abnormal
ICV01 Pin 42
(Normal: 4.5V)
Normal
Check/Replace
ICV01
Abnormal
Check the voltage
IC05 Pin5
Abnormal
Check/Replace
IC05
Normal
Check/Replace
CRT
Troubleshooting
5-1
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