JVC BR-S822DXU VHS/S-VHS playback VCR Logo

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Question about JVC BR-S822DXU VHS/S-VHS playback VCR

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No chroma on playback

Have problem with jvc br-s822dxu when I playback a recording , it only comes out black & white . When I input a video signal like I'm getting ready to record , it shows in color but playback , black & white . I replaced the chroma R/P board but still no change . Did,t have equipment to do alignment on new board so a set all controls to match the old board for a ball park alignment but still no good. Playback in black & white is perfect so I don,t think it's the head , but not sure , I have no service manual so I don't know test points . Does anyone have a answer other than trash unit and get a betacam ? Appreciate help . From Facebutt

Posted by edwin vazquez on

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  • 221 Answers

Bad heads may produce a loss of color in playback. If you have a spare head, swap it out and confirm this.

Posted on Jun 27, 2007

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1helpful
1answer

It will not record color in vhs or svhs.

It is the failure of the chroma processing IC that works with a biasing when the recording is activated. Failure of this frequency which has to be generated within or around these circuits wil result in the colour signals being out of sync. You will need a good signal trace with an oscilloscope to get to the real issue. I believe you will need to bench test this to get to the final point of trouble. You can check for head cleaning,resolder the joints of the chroma section, solderr any section looking mushy. hope this helps. Good day
0helpful
1answer

Picture is now black and white

 First, confirm that the source is actually in color - try another channel or input device.
Next, check the settings of the color control - it may have accidentally been turned down. If your TV has some kind of automatic picture mode, try turning if off and adjusting the color control. Try adjusting fine tuning if you have such a control and the problem is with a broadcast or cable
 transmission.
At this point with a confirmed color signal source, there is a problem with the chroma circuitry.
Note that to the average person, the obvious question becomes: is my color picture tube bad? The answer is a definitive NO. It is virtually impossible for a defective CRT to cause a total loss of color. A defective CRT can cause a lack of a primary color - R, G, or, B or a short between two colors which will mess up the color but is not likely to result in a black and white picture.
Some possibilities in no particular order:

  1. Weak signal or defect in tuner/IF causing loss of signal strength.
  2. Coler killer set too high (internal control) if it has one.
  3. Defective part around the chroma chip/circuit. Faulty color oscillator.
  4. Bad connections in area of chroma chip/circuit.
  5. Defective chroma chip (don't suspect this first just because it is probably very expensive).
A service manual or Sams', DMM, and scope will help greatly in attempting to troubleshoot this unless it is an obvious bad connection. Try prodding the main board around the chroma chip with an insulated tool to see if you can make the color come and go.
I had one set where a $.02 resistor decided to open up causing just this problem - perfect BW picture, no color. Another had a coil with a broken wire.  


2helpful
1answer

Jvc gr-dx28ek black screen during recording

if u can see the old videos in playback mode those videos when ur camera was ok then it is

BAD CCD !

see the link for free repairs from JVC dont worry if u are out of warranty and not on list just call them PLS RATE ME FIXYA for help

http://www.jvc.co.uk/template.php?page=100102
0helpful
1answer

Different sound to picture

When connecting VCR to TV. Verify all connections. First if the connection is with coaxial cable make sure you signal from outside is screwed to the cable input on VCR. Then the VCR/TV output has the cable running to TV input. If hooking up with RCA cables , which is the yellow, red, and white cables. Hook one side up to VCR output. Yellow for Video, while red/white to audio output matching the colors. The same is done to the Television input. yellow for video, red/white for audio. Do a test recording. Use a blank tape, not one already recorded on. Record about 5 minutes Stop recording , rewind and playback. You should see the difference.
0helpful
2answers

COLOR PROBLEM

your tv need a reheat.reheat from video chroma to crt board
1helpful
1answer

HELP! JVC-BRS822U ejectomatic

I have a similar problem on a SONY SLV-700HF. It may be a drive belt problem with the take-up spool not gathering the tape. I'll be interested in any other suggestions before I pay out the $30 or so for a set of new belts.
0helpful
1answer

Any idea how to setup and allign the internal switches of tbc boards in br-s822

JVC still hass the manual for this machine; call them and ask to buy one.
0helpful
3answers

No colour at playback when tbe switch is on

The DNR boards for these machines can go bad and produce a black and white picture. Try swapping the DNR board.
0helpful
3answers

Tape door won't open on eject?

Many times I've heard my tape will not eject,most of the time unpluging the unit from the wall for about 10 minutes and then plug it back in,this resets the microprocessor and it goes bak to normal and the tape ejects.I hope it works. Please rate this solution if it does.
0helpful
1answer

Jvc 200u problem recording to vhs video tape, from camcorder

Yes, if the camera is a US camera then it is NTSC. That would be your problem, you are trying to record an NTSC signal to a PAL video. THe frame rates and resolutions are all wrong. I am even surprised that it is playing back on your TV okay...
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