VCR question


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VCR question

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JBL
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Feb 9, 2008, 7:59 PM

Post #1 of 8 (2778 views)
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VCR question	Can't Post

Is it normal for a vcr to bypass the signal from the coax in (ant) through the coax out (tv) when the vcr isn't on but not the line out?

Thanks for any advise.

Joe

techchris
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Feb 10, 2008, 12:27 PM

Post #2 of 8 (2773 views)
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Re: [JBL] VCR question [In reply to]	Can't Post

whether the vcr is on or on standby the rf signal is passed out through the rf out socket, otherwise you would not get a picture on the tv. A/V sockets are switched off if the vcr is on standby

JBL
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Feb 11, 2008, 3:13 AM

Post #3 of 8 (2765 views)
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Re: [techchris] VCR question [In reply to]	Can't Post

Is there something in setup to keep a/v on when power is off?

Thanks for any responses

techchris
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Feb 11, 2008, 6:26 PM

Post #4 of 8 (2762 views)
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Re: [JBL] VCR question [In reply to]	Can't Post

I doubt it but as no make or model posted then difficult to say.why do you want to do this anyway? just leave the vcr on all the time if you want A/V signal.

rrobor
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Feb 21, 2008, 1:18 PM

Post #5 of 8 (2725 views)
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Re: [JBL] VCR question [In reply to]	Can't Post

To get AV the signal has to come from the tuner, be detected, if its stereo, the sound has to be decoded then sent through AV matching and buffer stages. So the answer is no, it takes power to do that. Even the RF in and out use power which is always on regardless of what position the on off switch is in. Just pull the mains plug out and you will see the picture on the TV fade out.

riverside
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Jun 23, 2009, 2:51 AM

Post #6 of 8 (2265 views)
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Re: [JBL] VCR question [In reply to]	Can't Post

Answer is yes. Have the VCR switched to either channel 3 or 4, same as your TV and leave both on the same channel always. If an older set, switch channels with your digital converter box.

Barry777
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Jan 18, 2010, 6:57 AM

Post #7 of 8 (2005 views)
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Re: [JBL] VCR question [In reply to]	Can't Post

Hi Joe,

The A/V outputs are part of an "active" circuit, meaning it must be energized to process and pass a signal through. The coax is a "passive" circuit, thus will pass the signal with power off. There is no way to get A/V output with the machine turned off.
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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

jts1957
Veteran

Jan 18, 2010, 11:04 AM

Post #8 of 8 (2002 views)
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Re: [Barry777] VCR question [In reply to]	Can't Post

I believe Joe resolved this question approximately 2 years ago.

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