Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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mydaj [ROR]
 
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Default Epson ELP-3300 projector has vertical roll

My Epson projector developed a vertical roll. Cannot locate any
vertical hold adjustment and my service manual does not provide any
help. Projector is too old to be worth repair shop costs, but I just
replaced lamp ($200) and would like to get a little more use from it.
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Jerry G.
 
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Default

You will have to follow the video signal path through the sync separator
with a scope, and look for where the vertical sync signal is lost. Many
times, it is a defective coupling or decoupler cap that can cause this.
However, there are times, when these types of faults can get a bit complex.

I would suggest to NOT mess with any adjustments. The proper answer is to
troubleshoot the unit, and fix the fault.

--

Jerry G.
======


"mydaj [ROR]" wrote in message
...
My Epson projector developed a vertical roll. Cannot locate any
vertical hold adjustment and my service manual does not provide any
help. Projector is too old to be worth repair shop costs, but I just
replaced lamp ($200) and would like to get a little more use from it.


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