Question about Zenith R57W46 57" Rear Projection Television

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My Zenith 57 inch model R57W46 won't turn on

The tech is saying it is our external horizontal circuit board....where can I purchase this part to make my own repairs

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  • 83 Answers

Pls cheked

1. s.by led is on ?
if yes ..... then cheked
H.output trangister opan and check the voltage c=135 v to 145 v DC
b=1.2 to 2.5 v Ac
if c= ok
b= not so D.transfermor (DT) check
*
* if S.BY LED is off .... then checked

SMPS : Output voltage DY cheked if ok?...then
5 v ragulater ic
S.by trangester

Posted on Oct 04, 2009

  • shailesh parikh Oct 04, 2009

    you just telk to your tech. and solve this problems easly i think all spare are available at your city or town easly pls try again best of luck.

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1 Answer

Zenith R57W46


Unplug set and do not plug again---something has burned so there is a risk of fire---unless you are familiar with fixing sets consider having a tech come out or take set to a shop for a estimate.

Jun 16, 2012 | Zenith R57W46 57" Rear Projection...

1 Answer

My zenith R57W46 has no sound, but has picture.


in the model listed the set will "turn off" the tubes if No High Voltage, a vertical or horizontal circuit loss of sweep etc.

Need a schematic and a meter to start checking things.

Jun 06, 2012 | Zenith R57W46 57" Rear Projection...

1 Answer

Zenith R57W46 57 in. Rear Projection Television


Factory setting will not cure a convergence problem---in customer menu look for convergence and see if it will adjust---if not and looks 3d etc parts have to be replaced and set adjusted.

There are kits for this available on the internet by brand and model number.

May or may not be a do it yourself repair depending on what skills you have.

SD TECH
5_4_2012_6_05_53_pm.jpg

May 04, 2012 | Zenith R57W46 57" Rear Projection...

1 Answer

Zenith r57w46 rear projection tv


the static sound may be due to a defect in the high voltage circuits, IE Fly-back transformer or and voltage multiplier, posibly high voltage leads to the CRTs arching to ground, finally horizontal sweep circuits

Apr 28, 2010 | Zenith R57W46 57" Rear Projection...

1 Answer

Is the external horizontal circuit the same as a flyback transformer


The short answer is no, but not knowing from where this question comes, makes me want to know more. What is the problem you are trying to solve?

Dan

Oct 01, 2009 | Zenith R57W46 57" Rear Projection...

2 Answers

Seeing doyble figures on one side and colors bleeding


need to replace the convergence ICs. Post your model number and I will post a link where you can get replacements.

May 04, 2008 | Zenith R57W46 57" Rear Projection...

1 Answer

HELP!! zenith r57w46


go to the nearest PC repair shop..your board/processor burned out.

or if you have still a warranty for the laptop better contact the  supplier were you bought it and as for a replacement.

Oct 29, 2007 | Zenith R57W46 57" Rear Projection...

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