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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 6th Feb 2016, 3:36 am   #1
dj_fivos_sak
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Default Belts for JVC HR-D120/Ferguson 3V35

Hi. I just got a HR-D120 which is what I wanted for 2 year now. The problem is that FF and REW is sluggish and when I press play, the VCR doesn't complete the loadind cycle so I checked the loading belt and it is definetely bad! My question is, can I order a belt kit for the HR-7700/3V23, 29 or 30 and put it in my HR-D120/3V35. I know that the 3V23 has a direct-driven idler assy and my 3V35 is belt driven but my main interest is the loading belt which is having trouble. Thanks a lot.

Fivos
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Old 7th Feb 2016, 3:19 am   #2
mickash
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Hi Fivos,

The correct belt would be best for your machine. The loading belt has a tough job. Belts from similar VCRs might look about the right size but are slightly different. Donberg do a belt kit for the 3V35 for EUR 1.74.

You might find that the loading mechanism grease has gone hard and sticky which puts a great strain on the loading belt. If that's the case the gears will need cleaning and regreasing using a grease that is compatible with plastic components.

Michael.
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Old 14th Feb 2016, 3:57 am   #3
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Thanks. I bought a kit for the 3V29/30 and I have replaced the capstan and loading belts and now it loads and plays the tape! I have another problem however. The sound works fine but the picture is either black or it shows snowy picture (the heads are clean). I tried a recording with the machine and the picture is very bad but it recorded a perfect sound. Any thoughts?

Fivos
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Old 14th Feb 2016, 11:21 pm   #4
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

https://www.youtube.com/watch?v=26cu0T5FzY0
Here's a video that shows the problem.

Fivos
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Old 15th Feb 2016, 12:46 am   #5
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Sorry
https://www.youtube.com/watch?v=XD75F-_WEwI
This is the correct link. Apologies for the multiple posts.

Fivos
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Old 15th Feb 2016, 8:17 am   #6
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

I had one once where the sw25 signal was of low amplitude and gave the impression of clogged video heads it turned ot to be the 9v rail was low at 5v the cause was the preset 9v variable resistor in the psu
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Old 15th Feb 2016, 8:27 am   #7
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Have you inspected the head tips under magnification, to check for any damage?
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Old 16th Feb 2016, 11:43 pm   #8
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Fivos, you need a oscilloscope, to trace the video signal.
From the RF Amplifier to a Video output.

Libra
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Old 25th Feb 2016, 5:36 pm   #9
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Default Re: Belts for JVC HR-D120/Ferguson 3V35

Here's the video PCB and the schematic. The head amp is on the PCB.
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