General Troubleshooting - Samsung 955MB Service Manual

5 Troubleshooting

5-2 General Troubleshooting

5-2-1 No Picture
LED blinks?
No
LED is green color?
No
Check G2 voltage, high voltage
and R, G, B cathode voltage.
5-2-2 Shut Down
Blinking LED's?
Yes
Scan failure?
No
Video failure?
No
Check and replace IC201.
Done
5-12
Yes
Refer to 5-2-2 Shut down.
Yes
Check MICOM.
No
Check power supply.
Check horizontal, vertical deflection
Yes
system and check power
supply secondary voltages.
Yes
Check Video board.
CONFIDENTIAL
CA19JS