Troubleshooting
Samsung Electronics
5-1
5. Troubleshooting
5-1 No Power (No Picture on)
Yes
Check
both terminal voltages
of C815 (130V)
Check both
terminal voltages of
C804 (280~300V).
Check D801S
F801,Q801.
No
Is IC801S Pin 3
19~22V?
Check IC801S
Check/Replace
DZ801,DZ808,
DZ802,PC801S
No
Yes
No
Yes
Check
Voltage of 80V, 15V, 20V,
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 36,37
Check/Replace
IC901.
Check
IC901 Pin 20 is High
when power is On.
Check/Replace
IC902.
Check the voltage
of TU01S.
Yes
Yes
No
No
Yes
Summary of Contents for DW21G5VDX/BWT
Page 63: ...Block Diagrams 8 6 Samsung Electronics MEMO ...
Page 64: ...Schematic Diagrams 9 1 Samsung Electronics 9 1 POWER BLOCK 010 006 008 011 012 007 005 013 ...
Page 65: ...Schematic Diagrams 9 2 Samsung Electronics MICOM 010 006 008 011 012 007 005 013 ...
Page 66: ...Schematic Diagrams 9 3 Samsung Electronics H V DRIVE 024 024 022 020 019 017 016 015 014 018 ...
Page 68: ...Schematic Diagrams 9 5 Samsung Electronics 9 2 MASTER ...
Page 69: ...Schematic Diagrams 9 6 Samsung Electronics 9 3 CHROMA ...
Page 70: ...Schematic Diagrams 9 7 Samsung Electronics 9 4 CRT 9 5 A V ...
Page 71: ...Schematic Diagrams 9 8 Samsung Electronics 9 6 INTERPACE ...
Page 72: ...Schematic Diagrams 9 9 Samsung Electronics 9 7 CONTROL ...
Page 73: ...Schematic Diagrams 9 10 Samsung Electronics 9 8 SOUND ...
Page 74: ...Schematic Diagrams 9 11 Samsung Electronics 9 9 Main Micom DVD ...
Page 75: ...Schematic Diagrams 9 12 Samsung Electronics 9 10 SERVO ...
Page 76: ...Schematic Diagrams 9 13 Samsung Electronics 9 11 AV DECODER ...
Page 77: ...Schematic Diagrams 9 14 Samsung Electronics 9 12 DECK SERVO ...
Page 81: ...Schematic Diagrams 9 18 Samsung Electronics ...
Page 82: ...ELECTRONICS Samsung Electronics Co Ltd Jan 2001 Printed in Korea 3C16A 2101 ...