
Troubleshooting
6-10
Samsung Electronics
6-4-2 Troubleshooting Deflection Block
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Countermeasures by Deflection Types
Countermeasures by Deflection Types
1. The screen is blank and only the relay repeats close and open when turning the power on.
This happens when the vertical voltage or vertical signal is not supplied, and because the Micom operates for 5 to 10 seconds and
then turns the power off by force as it cannot detect the vertical signal.
2. CHECK POINT
- Check that the vertical output voltage is measured in the FBT terminal.
VCC (+) : +16.5v
VCC (-) : -16.5V
If you cannot measure the output voltage, check that the collector voltage of the horizontal TR is 1360V.
If the voltage is measured, the problem is a defect in the FBT unit.
(When you don't have an oscilloscope, and you can hear the high-voltage sound, you can determine that the horizontal TR is
normal.)
Is the vertical input waveform output from the TDA9377PS/N3/A VDP Pin.
Summary of Contents for CL-21M40MQ
Page 10: ...1 6 Samsung Electronics MEMO ...
Page 19: ...Alignment Adjustment Samsung Electronics 3 5 ...
Page 35: ...MEMO Samsung Electronics 5 10 ...
Page 46: ...Block Diagram Samsung Electronics 7 1 7 Block Diagram 7 1 Overall Block Diagram ...
Page 53: ...9 4 Samsung Electronics MEMO ...
Page 59: ...Operation Instruction Installation 11 2 Samsung Electronics 11 1 2 Connection Jacks Side ...
Page 60: ...Operation Instruction Installation Samsung Electronics 11 3 11 1 3 Connection Jacks Rear ...
Page 61: ...Operation Instruction Installation 11 4 Samsung Electronics 11 1 4 Remote Control ...
Page 73: ...14 4 Samsung Electronics MEMO ...