
Troubleshooting
Samsung Electronics
5-7
SLD, SIC-34
output is normal?
Yes
LED+, SLED-
SIC3-32,33 output are
normal?
Yes
Check the Sled Motor and connection
No pick-up home positing
No pick-up home positing
No
No
Check MIC1
Divide RQ1 emitter terminal
voltage and 5V real voltage
difference into 10ohm.
Open check in related circuit.
LD out pick-up replace.
Check MIC1
Check SIC3
B
RIC1-21 is 5V?
Yes
Yes
No
Current exceeds 0.1A?
Yes
No
NO LD CD ON
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 ...