Question about Toshiba 51H93 51" Rear Projection HDTV

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Horiz output failure repeatedly?

Where would i get circuit mod info?

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Click here to get manuall from toshiba.
Goto this page select your model
and download your manual.

Please post your feed-back

Thanks
Iqbal

Posted on Apr 15, 2008

  • Iqbal Husain
    Iqbal Husain Apr 15, 2008

    For direct download Click here;



    And please don't forget to rate this solution as fixya.



    Thanks

    Iqbal

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Can you please provide the TV model and part #.

Thanks

Posted on Apr 15, 2008

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1 Answer

When we turn on the TV it goes to standby and will not change


Switch mode power supply is shutting it down,,this is a protection mode and standby light shows it is still working,,most likley it has a horiz sweep failure,,if you know how I would check the Horiz output to see if it is shorted,,if so replace and if you have equipment bring it up at around 80 volts and see if current is excessive ,if it is you possible have a horiz sweep transformer gone bad, this is most likley problem but could be somthing else but this is where I would start,,35 years experenice in this field and today I despise working on big screens,,kinda burnt out .You might also note that the tubes have not leaked onto the board as there is some models done this,,you will see corrision on boards if this has happened
From Wendell

Aug 04, 2009 | Sony KP-61V90 61" Rear Projection...

2 Answers

Tv won' stay on


Sounds like your TV set failed the moment you decided to try the original remote....

But that remote didn't hurt your TV set.
It sounds more like your High Voltage or your Deflection circuit finally gave up the ghost....

Mar 21, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Cross Reference part


The original transistor for the Horizontal output is a 2SC5588 you can get an original at the following link.
http://servicemanuals.vstore.ca/

Feb 01, 2009 | RCA D52W19 52" Rear Projection Television

1 Answer

HITACHI 50UX10B AP23 CHASSIS NO POWER


please check all the lights that are in the chassis hitachi puts led in the chassis so that if one of the lights are not working then u know that circuit is bad. now there is 2 things that hit has wroung in the units and that is a 2kv hv cap of the horiz output transistor that burns up and kill the power supply look for a small black or brown fuse it will not have glass on it it is rt behind the reg ic in the center of the chassis it allwas opens up because of the hv cap doonot run the tv without out that cap it will overload the horiz drive and will burn upo the horiz output but u have a very good ctv ther if u fix it will last u a long time and it is a very easy tv to trouble shoot.

Oct 12, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

2 Answers

Need info on mod kit for horiz output on Toshiba 51h93.


Do you have the part number, which kit do you need ?

Apr 21, 2008 | Projection Televisions

1 Answer

Toshiba 51H93 .


check for cracks in the driver circuit, also i believe this maybe on of the models that had a kit that helped from driving the h-output to hard causing it to get hotter then normal.

Apr 11, 2008 | Toshiba 51H93 51" Rear Projection HDTV

1 Answer

Horizontal output transistor failure


check b+ comming from p/s. also check for blue flat caps in line with h-output circuit. if blown out the side. remove them from circuit. also might have a HVT goin bad. I believe this is also the model that might have a mod for h-out running too hott that requires adding a resister in the h-drive circuit. also try a heavier duty h-output.

Apr 09, 2008 | Toshiba 51H93 51" Rear Projection HDTV

1 Answer

Horz. Output Transformer for a GE Mod#46GW945


Check this guys: //http://www.electronica-usa.com/
This guys may carry that part: //http://www.globalsemi.com/search.aspx

Jan 24, 2008 | GE 46GW945 46" Rear Projection Television

2 Answers

Rca p52927 chassis ptk 195 wont power up all of a sudden


ctc chassis with the 195 chassis were famous for flyback transformer shorting and taking out the horizontal output transistor also.

Oct 24, 2007 | RCA P52937 52" Rear Projection Television

2 Answers

Mitsubishi cs-35401television


HORIZONTAL FAILURE AND LINE DOWN THE SCREEN. REPLACE T5A1 LOCATED ON PCC-3-PCB. PT#349P145030(FOR CS-35401,CK-35402 ONLY) Hope this helps! Troy

Sep 11, 2007 | Projection Televisions

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