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  #46  
Old 05-12-2012, 11:41 AM
waltchan waltchan is offline
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Studio Sound Electronics preferred rankings...

I e-mailed Studio Sound Electronics, the largest online VCR part-store, on his opinion on 1980s to 1993 VHS VCR reliability, and he sent me this:

FEWER REPAIRS
<<<<<
  • 01 -- Toshiba/RCA/GE/ProScan (most-reliable)
  • 02 -- Shintom/Multitech/Toshiba
  • 03 -- Funai/Symphonic/Multitech/TEAC/XR-1000
  • 04 -- Panasonic/Quasar/Canon/GE/Magnavox/JCPenny/RCA/Sylvania
  • 05 -- Sanyo/Sears
  • 06 -- NEC/Marantz/Yamaha
  • 07 -- Sharp/Montgomery Ward/Signature 2000
  • 08 -- JVC/Zenith/Kenwood
  • 09 -- Orion/Emerson/Broksonic/Sansui/TMK
  • 10 -- Samsung/RCA/GE/Toshiba
  • 11 -- Sony
  • 12 -- Hitachi/RCA/GE/ProScan/Sears
  • 13 -- Mitsubishi/MGA/Video Concepts
  • 14 -- GoldStar/Zenith/LXI/JCPenny/Totevision/
  • 15 -- Daewoo/Capehart/Daytron
  • 16 -- Fisher (least-reliable)
>>>>>
MORE REPAIRS

Toshiba/RCA/GE/ProScan were the most-reliable, while Fisher was the least-reliable. Would all of you (as techs) find this (his rankings) more preferable and accurate?
.

Last edited by waltchan; 05-18-2012 at 08:10 PM.
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  #47  
Old 05-16-2012, 11:41 AM
waltchan waltchan is offline
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Studio Sound Electronics preferred rankings...

1994-2005 VHS VCR reliability rankings:

FEWER REPAIRS
<<<<<
  • 01 -- Sanyo (most-reliable)
  • 02 -- Shintom/Toshiba/Sony
  • 03 -- Fisher
  • 04 -- Hitachi
  • 05 -- Orion/Emerson/Broksonic/Sansui
  • 06 -- Mitsubishi
  • 07 -- Sharp/Admiral
  • 08 -- Samsung/RCA/GE/Samtron/Toshiba
  • 09 -- Panasonic/Quasar/GE/Memorex/RCA
  • 10 -- Funai/Symphonic/Hitachi/Philips-Magnavox/Sylvania
  • 11 -- Toshiba/RCA/GE/ProScan
  • 12 -- JVC/Marantz/Philips-Magnavox
  • 13 -- Sony
  • 14 -- GoldStar/JCPenny/LXI/Allegro/Zenith
  • 15 -- Daewoo/Audiovox/Emerson/Fisher/GE/RCA/Sanyo (least-reliable)
>>>>>
MORE REPAIRS

Sanyo was the most-reliable, while Daewoo/Audiovox/Emerson/Fisher/GE/RCA/Sanyo were the least-reliable. Would all of you (as techs) find this (his rankings) more preferable and accurate?
.

Last edited by waltchan; 05-23-2012 at 05:45 PM.
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  #48  
Old 05-16-2012, 02:03 PM
waltchan waltchan is offline
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1988 Panasonic PV-S4880 S-VHS 4-Head Hi-Fi VHS VCR...

I'm servicing a 1988 Panasonic PV-S4880 right now. It needs a power supply caps rebuild, capstan-motor circuit caps rebuild, and video board surface-mount caps rebuild (photo #1).

Surprisingly, the Hi-Fi audio board use no surface-mount caps.

Ed in TX, this is what the video board looks like in the PV-S4880 with the surface-mount caps (photo #2). Your AG-1830 looks pretty much similar.
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File Type: jpg 100_0391.jpg (100.5 KB, 29 views)
File Type: jpg 100_0394.jpg (88.4 KB, 29 views)
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  #49  
Old 05-16-2012, 05:41 PM
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holmesuser01 holmesuser01 is offline
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Quote:
Originally Posted by waltchan View Post
1994-2005 VHS VCR reliability rankings:

FEWER REPAIRS
<<<<<
  • 01 -- Sanyo/Fisher (most-reliable)
  • 02 -- Shintom/Toshiba/Sony
  • 03 -- Hitachi
  • 04 -- Orion/Emerson/Broksonic/Sansui
  • 05 -- Mitsubishi
  • 06 -- Sharp/Admiral
  • 07 -- Samsung/RCA/GE/Samtron/Toshiba
  • 08 -- Panasonic/Quasar/GE/Memorex/RCA
  • 09 -- Funai/Symphonic/Hitachi/Philips-Magnavox/Sylvania
  • 10 -- Toshiba/RCA/GE/ProScan
  • 11 -- JVC/Marantz/Philips-Magnavox
  • 12 -- Sony
  • 13 -- GoldStar/JCPenny/LXI/Allegro/Zenith
  • 14 -- Daewoo/Audiovox/Emerson/Fisher/GE/RCA/Sanyo (least-reliable)
>>>>>
MORE REPAIRS

Sanyo/Fisher were the most-reliable, while Daewoo/Audiovox/Emerson/Fisher/GE/RCA/Sanyo were the least-reliable. Would all of you (as techs) find this (his rankings) more preferable and accurate?
.
This is a fairly good listing.

Sony would be above Funai on my list.

Hmm. Sanyo at both ends of the list. Interesting...
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  #50  
Old 05-16-2012, 09:09 PM
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ChrisW6ATV ChrisW6ATV is offline
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Walt, I did a bunch of VCR repairs in the 1990s, for friends, but I never kept track of brands enough to remember now which ones I repaired the most. Two big exceptions to that, though: I never repaired any Panasonics or their clones despite seeing plenty of them, and I repaired every Fisher I ever saw, sometimes more than once.
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  #51  
Old 05-17-2012, 10:18 AM
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lnx64 lnx64 is offline
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I had to repair a Panasonic of mine, but it was mainly rubber parts that failed. This was a couple of years ago and it was an early 80's model.

I use a JVC digital VHS deck now, but I don't trust it lasting forever. It's loading mech kinda sucks.
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  #52  
Old 05-18-2012, 08:12 AM
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Tony75 Tony75 is offline
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That later list from 94 to 05 should have a few caveats. It is easy to see that many brands appear more than once, often at different ends of the spectrum. Mostly this will be due to a brand swapping suppliers of mechanism in this time, eg Sony did make their own but by 05 sourced their mechanism from Samsung, don't know which mechanism they rate as the better or worse (sometimes I have trouble working this out myself). And in the time before the Samsung mechanism Sony had a couple of different mechanisms of their own of varying complexity.
Philips went from Sharp to JVC to Funai in this time.
Keen eyes will spot that Funai drops significantly down this list, reading the wikipedia article says that about 1993 they dropped Shintom as their mechanism supplier and starter making their own (which is my opinion were diabolical, much worse than their pretty poor most recent mechanism) As you can see, Shintom stays high on the list.
Sanyo is a bit interesting here, did not like their own mechanisms much of this period, then they swapped to Daewoo and things got a little better I thought. The early Daewoo decks of this period are hard to keep going nw though.
JVC were a really mixed bag in this period too, with some good mechs and some not so good
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  #53  
Old 05-19-2012, 08:52 PM
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Ed in Tx Ed in Tx is offline
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Quote:
Originally Posted by waltchan View Post

Ed in TX, this is what the video board looks like in the PV-S4880 with the surface-mount caps (photo #2). Your AG-1830 looks pretty much similar.
Actually not much similarity. Much more use of modules soldered perpendicular to the top main board.


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File Type: jpg AG1830-boardlayout.jpg (73.6 KB, 76 views)
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  #54  
Old 05-20-2012, 08:41 PM
waltchan waltchan is offline
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Quote:
Originally Posted by Ed in Tx View Post
Actually not much similarity. Much more use of modules soldered perpendicular to the top main board.


Quote:
Originally Posted by Ed in Tx View Post
Dark distorted picture, either E-E or tape playback, distorted hi-fi audio, as I recall.
The problem would be caps related at the S-VHS Pack C.B.A., Luminence and Chrominance C.B.A., Input Luminence/Chrominace Separator C.B.A., Audio Pack C.B.A., and Hi-Fi Audio Pack C.B.A. All five boards require checking and testing. There should be a hybrid IC with surface-mount caps (hidden underneath) hanging sideways mounted on the S-VHS Pack C.B.A. (two boards mounted sideways). All the surface-mount caps in it need to be changed.

After that, (you're not finished yet, despite the tired work), you also will need to check all the caps in the switching power supply, just in case, before you put the top cover back on.

Panasonic S-VHS units often can get really, really severe electronic issues, with repair costs easily exceeding up to 500% of the product replacement cost.
.

Last edited by waltchan; 05-22-2012 at 01:58 PM.
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  #55  
Old 05-20-2012, 09:16 PM
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Quote:
Originally Posted by waltchan View Post
...After that, (you're not finished yet), you also will need to check all the caps in the switching power supply...
And then you'd only be about half way through it!

If I was going to go to the trouble to re-cap a VCR I would probably do one or both of my HR-S5800-HR-S6700 pair from JVC. Only difference between them is cosmetic. Those are/were really nice machines in their day. But on some of those modules hifi audio in particular SMD caps fail leak and take out tiny circuit traces with them.
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  #56  
Old 05-20-2012, 11:54 PM
NJRoadfan NJRoadfan is offline
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Quote:
Originally Posted by waltchan View Post
Panasonic S-VHS units often can get really, really severe electronic issues, with repair costs easily exceeding up to 500% of the product replacement cost.
.
Tell me where one can buy a brand new AG-1980.... that 500% figure is moot when the deck isn't made anymore.

Panasonic sure knows how to pack a deck with boards though (AG-1980 diagram below). They are nice enough to not even show the 3000 screws holding that mess together (not to mention the many capacitors that go bad).

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File Type: gif AG1980 boards.gif (24.1 KB, 71 views)
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  #57  
Old 05-21-2012, 05:21 PM
waltchan waltchan is offline
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Quote:
Originally Posted by NJRoadfan View Post
that 500% figure is moot when the deck isn't made anymore.
Many times, repair cost more than buying one on eBay.
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  #58  
Old 05-21-2012, 08:53 PM
NJRoadfan NJRoadfan is offline
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Quote:
Originally Posted by waltchan View Post
Many times, repair cost more than buying one on eBay.
Unfortunately ebay units are a crapshot at best. These VCRs are 10-15 years old now, and many of them beat up and never serviced. Chances are whatever you buy will have bad caps anyway.
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  #59  
Old 05-28-2012, 01:32 PM
waltchan waltchan is offline
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May need more NIB vintage JVC...

I may be (but not sure) interested in purchasing a second new-in-box vintage JVC VCR. Except for the 1982 HR-7650U that I already purchased, which one is likely the next best:

http://www.ebay.com/sch/m.html?_nkw=...ahand0&afsrc=1

Seller has 10 different vintage JVC VCR models. The next, closest good one may be the 1983 HR-D225U. I believe in the concept that the older the manufacturing year, the more reliable it will be. Can anyone verify?

There are three different mid-80s JVC chassis I can pick. Which one is the most reliable to you?
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  #60  
Old 05-28-2012, 01:41 PM
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Personally I'd go for the HR-D830. Yes they can have their problems, but they are all fairly easy fixes.
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