5 Troubleshooting
720C/920C
5-13
5-2 General Troubleshooting
5-2-1 No Picture
LED blinks?
LED is green color?
After restart monitor LED
doesn't
come on, repair power circuit.
Check signal cable.
Check G2 voltage, high voltage,
R, G, B cathode voltage.
Yes
No
No
LED is Amber color?
No
Yes
5-2-2 Shut down
Yes
5-2-2 Shut Down
Blinking LED’s?
Scan failure
Check horizontal, vertical deflection
system and check power supply
secondary voltages.
No
Yes
Yes
Check power supply.
No
High voltage failure?
Check high voltage system.
Check and replace IC201.
Done
No
Yes
Video failure?
Check Video board.
No
Yes
Содержание 720C
Страница 33: ...720C 920C 6 1 6 1 720C Exploded View and Parts List ...
Страница 34: ...720C 920C 6 2 6 2 920C Exploded View and Parts Lists ...
Страница 79: ...T601 C639 C609 C636 C638 L601 C604 D637 D608 10 1 Power Parts Schematic Diagram 720C 920C 10 1 ...
Страница 80: ...R299 720C 920C 10 2 10 2 MICOM Parts Schematic Diagram ...
Страница 81: ...720C 920C 10 3 10 3 Horizontal Vertical Processor Parts Schematic Diagram R265 C272 R262 ...
Страница 83: ...R561 R562 R501 C530 L521 R523 R526 720C 920C 10 5 10 5 High Voltage Parts Schematic Diagram ...
Страница 84: ...720C 10 6 1 10 6 1 720C Video Parts Schematic Diagram ...
Страница 86: ...720C 920C 10 7 10 7 Connector and Option Boards Parts Schematic Diagram CN142 slcon4p slcon4p CN141 CN208 ...