My problem is the same as ones I've seen posted here and on the net.
When I turn on my monitor I can see my desktop display perfectly for about 3-5 seconds, but then goes blank. It is not going into "sleep" mode. I can hold down the power button to shut down the monitor. When I power it back up, I get the same result everytime...desktop display for a few seconds, then black.
I've tried the suggestions I've seen for similar problems people have posted, but I'm still having no luck.
Here's what I've done so far:
Replaced all 10 of the capacitors (c802, c803, c905, c908, c922,c915, c917, c918, c939, c940) though none of them looked bad by bulging or leaking.
Replaced diode (d906) because it had a little discoloration on the circuit board around it.
Desoldered and scraped clean the coils (L903 and L904).
Reheated quite a few other solder points on the board incase of cracked or cold solder joint.
If possible I'd like to avoid troubleshooting (and buying) every little component on this board by trial and error, so I'm hoping someone can help me narrow it down.
Here are the pictures of the circuit board and schematics.
http://i746.photobucket.com/albums/x...rcuitboard.jpg
http://i746.photobucket.com/albums/x...schematic1.jpg
http://i746.photobucket.com/albums/x...schematic2.jpg
Thanks for any help.
When I turn on my monitor I can see my desktop display perfectly for about 3-5 seconds, but then goes blank. It is not going into "sleep" mode. I can hold down the power button to shut down the monitor. When I power it back up, I get the same result everytime...desktop display for a few seconds, then black.
I've tried the suggestions I've seen for similar problems people have posted, but I'm still having no luck.
Here's what I've done so far:
Replaced all 10 of the capacitors (c802, c803, c905, c908, c922,c915, c917, c918, c939, c940) though none of them looked bad by bulging or leaking.
Replaced diode (d906) because it had a little discoloration on the circuit board around it.
Desoldered and scraped clean the coils (L903 and L904).
Reheated quite a few other solder points on the board incase of cracked or cold solder joint.
If possible I'd like to avoid troubleshooting (and buying) every little component on this board by trial and error, so I'm hoping someone can help me narrow it down.
Here are the pictures of the circuit board and schematics.
http://i746.photobucket.com/albums/x...rcuitboard.jpg
http://i746.photobucket.com/albums/x...schematic1.jpg
http://i746.photobucket.com/albums/x...schematic2.jpg
Thanks for any help.
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