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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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Help with Sony SLV-R5UC capacitors
Can anyone tell me what caps (on what boards) other than
the infamous ones in the power supply have also had a reputation of causing problems with this VCR? I have looked through the SLV-R5UC archives, but haven't been able to come up with anything specific. My R5 has gone through the usual cycle of needing the power supply caps, sticky lub arm, back-up cap, capstan bearing, bad solder joints in the tuner, magenta bleed, etc, fixed. But now, all of a sudden, normal EP mode records with colored snow (although EP Super VHS and SP record ok), and intermittently on playback at any speed, the picture starts to jump, gets full of snow, and then pretty well looks like having the TV on the wrong channel -- becoming totally unwatchable. After switching the R5 off and waiting for a few hours, the picture quality (except for EP mode) is sometimes (and sometimes not) perfect again, and may (or may not) remain that way for several days, until the problem recurs again. I also installed new video heads, which made no difference. Trouble-shooting is a bit of a headache since I don't have a scope, so any ideas (more faulty caps?) would be appreciated. Thanks, -Ron |
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