No Picture Display; Black Screen And Led Is Amber - NEC MultiSync LCD2080UX -BKA Service Manual
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- User manual (122 pages) ,
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2. No Picture Display
2.1 Black Screen and LED is Amber
Is the LED turned green when the TACT
switch is pressed?
NO
YES
Is the OSM present?
NO
YES
Is the pulse input into Y22, Y21, W22, W21
of IC4A1?
Is IC804 Pin 2, or Pin 60 Hi?
Check peripheral circuits of IC804.
Go to "no picture and no OSM."
6-3
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