Question about Toshiba 57H81 57" Rear Projection Television

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Toshiba 57H81 service manual

I have been offered this TV from a friend but need to get it moved. One mover said the guts come out with just a few screws and then it is easier to move the two parts - guts and chassis. I just want to see the internals to see if this is possible before I let someone break a working set. Could you please send me the manual? Thanx.

neowyzard@comcast.net

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A 57H81 is not easily disassembled and I wouldn't suggest that over getting a pair of forearm forklifts and a couple of guys to load it in the back of a pickup...
The sevice manual will not show the brakdown you need - and it's not really practical. Guess that's why movers should stick to moving and I'll stick to Tv repair...
http://www.buystraps.com/Default.asp?tcode=asp&bhcp=1

Bill

Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Posted on Aug 24, 2008

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3 Answers

I believe the blue lamp in my 57H81 is going bad.


You need to replace convergence out chips in your Toshiba 57H81 tv by qualified tech because 3-D look picture in rear projection tv shows some thing wrong with convergence output chips.
Your tv model number shows it is rear projection tv that use 3 tubes to make color picture on front screen where as dlp tv use one lamp as back light source to present picture at front screen that is generated in light engine.

Mar 25, 2010 | Toshiba 57H81 57" Rear Projection...

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Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

Dec 02, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Convergence problem on a Toshiba 57h81


A service manual won't help you on this and yes it's most likely the convergence amps. That unit takes two stk392-110 Sanyo amps. You can substitue with stk392-150's or 180's also... Personally I'd get them from acme sales in florida along with any solder, de-soldering braid, heat sink compound and other supplies you'll need for the job. Acme, because you are assured of getting originals not some chineese knock-offs.
I'd suggest a package of 1.8 ohm/2w resistors, looks like that's what this unit uses in the yoke return circuit and they commonly have failed, and likely the cause for the amp failure. You might also take a meter to any picos in the circuit. F850, 851, 852 and see if any of them are open. If the amp opened you're okay, but if it went to ground it may have opened a fuse.
I will send the manual via Pando - so if you don't already have Pando go there first and download their free program.
Bill

Jan 17, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Just wondering when to replace the blulbs on my Toshiba 57H81 CRT


Hello, Im Ismail A, and I would love to help you with your problem. Ok, well you should change your bulb every 2 years.

Jan 12, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Tv won't turn on


You will need a service manual to troubleshoot the set to be able to find whats going on with it . Its in shutdown mode with the led flashing. A good manual is available at this link.
http://servicemanuals.vstore.ca/

Mar 19, 2008 | Toshiba 57H81 57" Rear Projection...

2 Answers

Service manual


Hi,

Go here and enter ur email id and start download

Goodluck,
Dont forget to rate me as fixya..

Jan 30, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Picture moving from top to bottom


you have a defect in the vertical circuit. most likely the vertical chip ,caps,diode and supply voltage for the chip..john

May 28, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Service manual, Toshiba 57H81


Send me your email address and I'll send you a Pando link to download the schematic... The caps you're looking to find are Cx261, Cx270, Cx230, Cx178, Cx221, Cx250, Cx670, Cx241, Cx541. You might also check C514 and C5030 all are 10uf\16v but be VERY careful not to screw-up the pads lifing the smd caps in that module. Bill premtech@willapabay.org

May 18, 2007 | Toshiba 57H81 57" Rear Projection...

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