Troubleshooting
Samsung Electronics
6-1
6. Troubleshooting
6-1 No Power (No Picture on)
Yes
Check
both terminal voltages
of C820 (125V)
Check both
terminal voltages of
C807 (280~300V).
Check D801~804
F801,Q801.
No
Is Q801 Pin 3
19~22V?
Check IC801
Check/Replace
T801.
No
Yes
No
Yes
Check
Voltage of 5V, 6V, 8V,
13V power line..
Check whether
each power line
is short or open.
No
No
Yes
Is IC901
Pin 64 Voltage 5V?
Check H.V SYNC on
IC901 Pins 1, 2
Check/Replace
IC901.
Check
IC901 Pin 3 is High
when power is On.
Check/Replace
IC902.
Check the voltage
of TU001.
Yes
Yes
No
No
Yes
Summary of Contents for TX20C53X/XET
Page 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2001 Printed in Korea 3C15C SESA 2125 ...
Page 91: ...Troubleshooting 6 24 Samsung Electronics MEMO ...
Page 92: ...Schematic Diagrams 11 1 Samsung Electronics 11 Schematic Diagrams 11 1 VCR 1 4 ...
Page 94: ...Schematic Diagrams 11 3 Samsung Electronics 11 3 VCR 3 4 TP01 TP02 TP03 TP04 TP05 ...
Page 95: ...Schematic Diagrams 11 4 Samsung Electronics 11 4 VCR POWER BLOCK ...
Page 96: ...Schematic Diagrams 11 5 Samsung Electronics 11 5 TV MAIN 1 4 Power Line Signal Line ...
Page 99: ...Schematic Diagrams 11 8 Samsung Electronics 11 8 TV MAIN 4 4 Power Line Signal Line ...
Page 100: ...Schematic Diagrams 11 9 Samsung Electronics 11 9 TUNER IF NICAM STEREO Power Line Signal Line ...
Page 101: ...Schematic Diagrams 11 10 Samsung Electronics 11 10 2 nd IF STEREO Power Line Signal Line ...