Shock Danger question


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Shock Danger question

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pfhjvb0
New User

Feb 20, 2010, 6:45 PM

Post #1 of 3 (1738 views)
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Shock Danger question	Can't Post

In a typical VCR, is there any real shock danger if the VCR is not plugged-in? My son wants to disasssemble an old VCR for fun, and I would like to make sure it isn't dangerous. There's a message about shock danger, but it isn't clear whether that only really applies to a plugged-in VCR or whether some charge exists even when it is unplugged. Also, if it does retain some charge, is that likely to dissapate over time (the VCR hasn't been plugged in for perhaps a year or more).

jts1957
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Feb 20, 2010, 11:57 PM

Post #2 of 3 (1733 views)
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Re: [pfhjvb0] Shock Danger question [In reply to]	Can't Post

If unplugged only shock possibility would be electrolytic capacitors. Most discharge on their own after unit is unplugged for a few minutes and ones on power supply board would have the most potential.

If its been unplugged for days - have at it! Cool

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Location: Far, Far Away

Barry777
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Mar 11, 2010, 2:01 PM

Post #3 of 3 (1708 views)
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Re: [jts1957] Shock Danger question [In reply to]	Can't Post

There is no danger whatsoever in tinkering around inside an unplugged VCR. Not even a little bit. Not even after it's been operating 5 minutes ago. And the only potential danger of tinkering around with the unit plugged in and operating would be on the power supply board. As long as he stays away from the rear of the unit, he can even play with the adjustments and observe the results if the unit is working.
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Barry Fone - VCR Repair hobbyist and professional FAA Repair Station Avionics Bench Technician (top level). TEST EQUIPMENT: (4) Sencore VC93 VCR Analyzers, (11) Tentel gauges, Sencore VA48 and (2) VA62 Video Analyzers, Sigma Electronics TSG-375 NTSC/SMPTE Video Generator, several VCR Alignment Tapes, plus countless Oscilloscopes, Frequency Counters, Wow and Flutter Meters, Distortion Analyzers, Vectorscope, 136-channel Logic Analyzer, Signature Analyzer . . . . VIDEO GEAR: (6) JVC BR-S822U's, (3) JVC BR-7000 series, (3) JVC BR-S500U, (2) JVC BR-S800U, JVC GR-800U and (2) GR-860U Editing Controllers, Sony FXE-100 Video Switcher/Effects Generator, (5) Time Code Generator/Readers, (1) Sony SLO-1800 (Beta), (2) Alesis ADAT-XT, (1) Sony DXC-1200 TV Camera, Pioneer VP-1000 Laser Disc Player plus many consumer grade Beta and VHS VCR's. Passionate electronics enthusiast since 1973...most anything except computers. Check out my collection at www.barrys8trackrepair.com/MyVideoGear.html

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