XG-NV7XE (serv.man3). Service Instructions, Troubleshooting Intro to DMD - Sharp Projector Service Manual (repair manual). Page 29

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29
XG-NV7XE
XG-NV7XM
TROUBLE SHOOTING TABLE
Checking the PWB performance
RGB input in trouble
Feed test pattern signal from 
PC.
Yes
No
Use specified cable.
Is specified cable connected 
between PC and projector?
Yes
No
Power circuit in trouble.
Is supply voltage as specified?
Yes
No
Check the connectors, starting 
from the PC input  circuit.
Does image appear?
Video input in trouble
Go to "Checking the video unit 
circuit".
Remote control in trouble
Go to "Checking the remote 
control".
Go to "Trouble shooting table 
for PC I/F unit ".
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