 Posted: Wed Nov 17, 2010 10:56 pm Post subject: |
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| Thanks for updating links
vtech |
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| Posted: Wed Nov 17, 2010 6:37 pm Post subject: |
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| Oops! Got caught out by the Guest posting feature again!
That's me up above and thanks again! |
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| Posted: Wed Nov 17, 2010 1:44 am Post subject: new link to pictures |
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| Updated link to pics on facebook:
http://www.facebook.com/album.php?aid=119485&id=729235084&l=7a487ac5a8 Regards, TC |
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| Posted: Fri May 23, 2008 3:27 am Post subject: |
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Kudos & glad to be of help  |
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| Posted: Thu May 22, 2008 6:20 pm Post subject: |
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Another pic:
Shows the IC board in the main board, and the capacitor in it's hiding spot. |
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| Posted: Thu May 22, 2008 6:17 pm Post subject: |
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| Just an update for anyone searching the web and finding this post. I have a Mitsubishi HS-u70 (except, because it's from Canada, it's labeled and Electrohome AVR G95 ), that had a problem playing SVHS tapes.
The machine played VHS tapes just fine, but SVHS tapes would be very dark and have verical rolling issues, and the tracking couldn't lock on. with vtech's help, I identified the IC board, and removed it. Sure enough, the cap had leaked. 
I removed the cap and soaked the IC board in alcohol for an hour, then scrubbed it with a toothbrush. The capacitor on the IC board is a surface mount 4.7uf, 35V type. I didn't have anything SMD, so I dug through my collection and found a bigger one with the same capacitance, but higher voltage of 250V. I soldered wires to the IC board and connected them to the capacitor leads, The capacitor can be tucked neatly into one of the holes in the frame. 
And...IT WORKS! Not the prettiest solution, but who cares ? I can play my tapes! If the pictures don't show up, they are all available here: http://www.facebook.com/album.php?aid=119485&l=7a487&id=729235084 Again, a HUGE!!! thanks to vtech for his help on this. I would have had to search forever to find the problem, but instead, I was able to fix it in almost no time. THANK YOU! Hope this helps someone else bring an old marvel of technology back to life! |
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| Posted: Sun Jun 25, 2006 12:43 pm Post subject: |
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| The only reason I'm worrying about it is because I have a couple of SVHS tapes that I would like to transfer to DVD. | |
| Posted: Sun Jun 25, 2006 11:06 am Post subject: |
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| As I mentioned, the chip has been discontinued for some time. I've had to repair a good many --some are easier than the others depending on how the cap failed on the IC. While it's rather routine for an experienced tech, not sure if it's worthed to you? Personally I could care less for vcr/ video tape--still do repair them because it's part of the business i'm in. It's a dying technology & definitley on it's way out.
You could easily get a newer machine that will do the same job for much less but'll never see the quality built of yester year equipment. |
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| Posted: Sun Jun 25, 2006 9:07 am Post subject: |
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| Is that chip still available and is it worth my while to even attempt the repair or should I just try selling this on Ebay for parts and buy a new SVHS from a vendor? | |
| Posted: Sun Jun 18, 2006 11:07 pm Post subject: |
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| K, as far as SVHS goes, while it is a rather complex path & can be caused by variety of capacitors, the NUMBER ONE problem was associated with one of the hybrid IC's on the SVHS circuit. It is actually a 8 or 8 pin thin in-line IC that is mounted on the SVHS pc board--usually siliconed next to adjacent part by the famous white mitsubishi silicon compound( if i remember correctly it is on the sandwiched board)'
The following actually involves the parts mounted on the IC itself (unless you are familiar with this-- do not attempt) The SMD cap mounted on the IC itself will eventually leak out & sometimes make a mess on the surface of the IC. Of course the easiset way would be to replace the entire Ic which has long been discontinued. I've had to repair many of these ic's [repairing etched traces(if any) & replacing the offending SMD cap on that ic] which will restore SVSH picture. |
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