Does the pulse appear
at Pin 8 of IC501?
CONFIDENTIAL
4 Troubleshooting
4-2
MO15E*
4-2 No Video
Power indicator is green.
Replace X501 or
check its related circuit.
No
Does the clock pulse
appear at Pin 78 of IC300?
Does the H-sync
pulse appear at
Pin 38, 39 of IC300?
Check R304, 305, 306 and 307.
Replace IC401 or check
its related circuit.
No
Do the sync pulses appear at Pin
27, 28, 30 and 31 of IC401?
Yes
Yes
No
No
Yes
Yes
Replace X301 or
check its related circuit.
No
No
1
2
Does the clock pulse
appear at Pin 73 of IC300?
9
12
8
Do the pulses appear
at Pin 43, 44 of IC501?
Replace IC202(SOG) or check R207
and Pin 13, 15, 17, 19 of CN202.
10
13 14 15
1
3
4
5
11
Do the waveforms
appear at Pins 39
and 40 of IC401?
Replace LCD Panel.
Yes
Replace IC300.
Yes
No
Replace IC501 or
check its related circuit.
Yes
6
7
Summary of Contents for MO15E Series
Page 6: ...MO15E 5 1 CONFIDENTIAL 5 Exploded View and Parts List ...
Page 8: ...7 Block Diagram MO15E 7 1 H V NT7181F Brightness On Off 14V 12MHz 12MHz Mascot V CONFIDENTIAL ...
Page 9: ...8 Wiring Diagram MO15E 8 1 CONFIDENTIAL 8 Wiring Diagram ...
Page 13: ...10 Panel Description 10 2 MO15E CONFIDENTIAL Memo ...
Page 14: ...CONFIDENTIAL 9 Schematic Diagrams 9 2 MO15E 8 10 11 13 14 15 ...
Page 16: ...CONFIDENTIAL 9 Schematic Diagrams 9 4 MO15E 1 9 12 2 ...
Page 18: ...9 Schematic Diagrams 9 6 MO15E CONFIDENTIAL 1 3 4 5 6 7 ...
Page 19: ...Memo 8 Wiring Diagram 8 2 MO15E CONFIDENTIAL ...
Page 20: ...7 Block Diagrams 7 2 MO15E CONFIDENTIAL Memo ...
Page 26: ...5 Exploded View Parts List 5 2 MO15E Memo CONFIDENTIAL ...
Page 28: ...4 Troubleshooting MO15E 4 3 CONFIDENTIAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 WAVEFORMS ...
Page 34: ...CONFIDENTIAL Memo 3 Disassembly and Reassembly 3 6 MO15E ...
Page 40: ......
