Question about JVC HR-J692U S-VHS VCR
First try unplugging the unit for about 20 or 30 seconds, to do a reset on the logic circuitry. Beyond this, the rig has an internal electronic problem. The power supply circuitry would be where to look next. If you have a voltmeter and some tech savvy, check the output voltages. There should be a +5, +12-15, & a -40 volt or so. The +5volt line must be very close tolerance, within about .2 volt. This supplies the logic circuits, and if it is wrong, operation is compromised. If by chance voltages are off, such is likely caused by one or more bad electrolytic capacitors. Digi-Key Corp. has Panasonic FC series capacitors which I generally use for replacements. Mouser electronics is another source also. Perhaps another contributor has seen this specific problem and has a better diagnosis.
Posted on Jul 03, 2007
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