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#1
02-28-2009, 01:02 PM
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Help on a modern Toshiba, 20AF41
I just got a hold of this set and it's relay is clicking every couple of seconds when the set is plugged in. Obviously it will not turn on. A search on this model brings up bad caps or a defective IC (with a recommendation to "jumper" it), but I'd like some opinions here.
Anyone have a schematic on these early 2000's Orion-built Toshiba sets? Any experience with this problem? 
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#2
02-28-2009, 02:10 PM
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#3
02-28-2009, 03:17 PM
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Look for a bad electrolytic cap located somewhere close to the relay. Also, check the horizontal output transistor and the diodes off of the switch mode transformer for a short.
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#4
02-28-2009, 03:43 PM
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Quote:
 Speaking of original Toshiba-built sets... linkyradiotvnut: I'll look into the bad caps, HOT and diodes.
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#5
02-28-2009, 05:04 PM
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I just had another thought. It could be a shorted vertical IC. If you remove the IC and the set powers up with a horizontal line, the vertical IC is bad. If the IC is indeed bad, replace the electrolytic caps around the IC. There will likely be a 100 uf or a 220 uf cap that blew the IC.
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| Audiokarma |
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#6
02-28-2009, 10:32 PM
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I stopped repairing sets around 1997. Toshiba switched production over to <gasp> FUBAR? Wow. Wow, wow, wow. Are those sets Orion designs (GAH!) or did Toshiba simply have them do their production?
Those bad caps around the vertical parts are legend. Toshiba- In Touch With... well, not so much, anymore.
__________________
 "Welcome (yeah), to Pacific (yeah), Stereooo-oh! Doo doo doo..."
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#7
02-28-2009, 10:39 PM
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#8
02-28-2009, 11:31 PM
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Yeah, Orion did contract work for Tosh's CRT sets starting in 2000 to ??. Comparing to the garbage Funai combos I've worked with a couple of months back, these are a small tad better - only in parts suppliers (i.e. Nichicon v. Sus'con caps, JVC v. Bai Li flybacks). Some smaller Toshiba sets were indistinguishable to Orion, Broksonic, World, Sansui, and others.
Toshiba did let themselves go, in a washed-up former superstar kind of way.  Here's the set:   I'll see if I get a picture out, but I'm not expecting much for a curb find and may wind up parting it out. It's a bit bland when pitted next to an early-'80s Trinitron.
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#9
03-01-2009, 01:11 AM
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Toshiba-Orion history:
Toshiba-Orion history:
Orion began TV production for Toshiba on January 2001 as well as TV combos and DVD/VCR combos. All 27" or smaller (excluding 27" CRT flat screen) were made by Orion. By 2003, all 27" or smaller (including 27" flat CRT screen) were made by Orion. By 2005, all Toshiba CRTs, regardless of what size and price, are made by Orion. Toshiba peaked in 2006 when more than 70% of their products were made by Orion, most ever recorded in history. The rate has now dropped dramatically all the way down to 10% in 2009 because Toshiba CRTs are no longer made, plasma TVs are no longer made, DVD/VCR combos and DVD recorders are now made by Funai, and smaller LCD TV screens (excluding combos) are now made by Toshiba again in their new China factory. This is due to rising Orion's OEM labor cost along with expired contracts.
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#10
03-01-2009, 08:58 AM
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I have one of those sets in a 24" model. I bought it new in early 2004 and haven't had any problems with it yet, altho it does see light use. I was dismayed when I found out it was an Orion built set, but I do have to say it does have a fantastic picture and sound. I think they were made to be direct competition to a Sony Wega, which is the set I bought first. I had it a few days and the picture was awful. When I Googled Sony Wega and saw all the bad reviews, I found out the Toshiba had all the same features and was a top rated set at that time, so I had the store exchange the Sony for the Toshiba. Good luck with the repair on yours.
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| Audiokarma |
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#11
03-02-2009, 10:30 PM
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I had one given to me with no vertical drive. Sounds like that circuit sees plenty of trouble. I didn't want to put any money into it (nope, not even into a 32" set) so I gave it to a friend in the business. He already had one identical to it, a lightning victim, on his junk pile. I never saw the Toshiba again at his place so I think he junked it.
__________________
Bryan
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#12
03-03-2009, 03:16 AM
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this should be the fix. it is from our tech board great techs there.
-------------------------------------------------------------------------------- Fellas, I found C527 down in UFD's and changed. So far set is starting fine. Thanks for your help. T Burton
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#13
03-03-2009, 06:39 PM
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Thanks for the help guys! Though I won't be able to get to it until later on this week.
Waltchan: so is the OEM labor cost the reason I do not see as many of Orion's products on the market now than a few years ago? Can't wait for a Funai-made Toshiba Blu-Ray player. 
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#14
03-04-2009, 10:28 AM
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rcaman: That's the fix!!!
 The 16 volt 470 microfarad cap (C527) was the cause, which I had several in the parts bin. This set turned out much better than expected, especially that the tube looks strong. Thanks again! Last edited by jedo1507r; 05-02-2009 at 12:39 AM.
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#15
03-04-2009, 11:23 AM
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| Audiokarma |
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Linear Mode
