Question about Protron PLTV-4250 42 in. LCD Television

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Protron flat screen tv

My flat screen TV won't turn on???? Help!!!

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  • Anonymous Feb 01, 2009

    I've got the same issue - musicman, if you can send pics to, I'd appreciate it.



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Protron PLTV 4250- wont turn on-
Had the same problem with one here- The 110v end of the power supply board was found damaged, The following items may need to be replaced:
Fuse F1 (soldered in) . 6.5a @250v time delay
Mouser 576- 021506.3HXP – note this style is for a fuse holder instead of solder in- I added a fuse holder on the board
RT4 & RT5 inrush surge suppressors - I used shintron 8d-18 power suppressing thermistors
BD1 bridge rectifier - Mouser 627-D15 XB 60H Shindengen

If you want a little more protection modify the board as follows:

1.replace only RT5 in its original location & move RT4 into the other ac input line in front of the bridge rectifier. (cut trace & drill solder holes)

2. Add: MOV (metal oxide varistor) across ac inputs of bridge rectifier.
Maida mdc-z481-8oul or D69 ZOV 481 RA 105
This arrangment is copied from a samsung power supply.

Be careful when plugging in the I/O box on the outside cover, if any pins are inadvertantly bend loss of picture will result.

I have pics if anyone needs them

Posted on Nov 24, 2008

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Musicman1429 could you send me the pics of the repair. my email is I am in the process of repairing a viziol30 lcd television. I believe that the mov is going out and anything that could be helpful is appreciated. Thank you.

Posted on Jan 14, 2009

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Get a power extension cord and take the TV plug to the power extension cord and relocate to another room and find another outlet.Plug it in and see if it works.If it doesn't,i hope you have warranty:(

Posted on Nov 11, 2008

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Posted on Jan 02, 2017

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SOURCE: protron flat 32' tv with broke screen need to replace

i have the parts

Posted on May 21, 2008

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SOURCE: protron LT26C1P1 tv

you can try shopjimmy or direct merchant for parts, also the old fall back of ebay

Posted on Feb 05, 2009

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SOURCE: We need a ACPower Adapter# for Protron PLTV-32 LU32A143 LCD TV(not EBay)

If I where you, I would just go to hardware store and get multi-adapter for $10 and make your own

Posted on May 20, 2009

SOURCE: No Picture - United States
OK use these Service and repair manuals above, these are the manuals us engineers use to troubleshoot and repair things like this.
If you feel that you cannot, or do not want to do a DIY. Please contact, Proton, head office, and ask for a referral to an authorised service center, then ask them for a "Quote" before proceeding with any repair.

Posted on Apr 29, 2010

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We are in a big dispute with the Chinese factory that makes Protron LCDs. No replacement parts will be coming, ever.

There are no remotes and no power supplies available.

PROTON has already won their lawsuit which prevents us from selling under the name PROTRON. As soon as they pay the bond, we are shut down.

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