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Old 08-14-2017, 09:37 AM
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Ed in Tx Ed in Tx is offline
Zenith Walton My 1st TV
 
Join Date: Nov 2008
Location: DFW
Posts: 1,414
Quote:
Originally Posted by centralradio View Post
I remember at the shop years ago when RCA/GE send out a supplement to put into the service manuals and had a kit to fix their VCRs with dim displays.
That could cover a LOT of models! There were the Hitachi-made VCRs with either discrete components in the DC-DC converter circuit, or had the DC-DC conv. module, either would fail from bad caps. Then there were the Samsung-made RCA-GE units with capacitors failing in the power supply. Thompson issued a rebuild kit for those. The driver transistor would often fail in those too. I would take that out and check the gain of the transistor since it wouldn't actually go open or short and read fairly normal with simple testing with a meter, and replace it as needed.
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