Question about Proscan 42LA45H 42 in. LCD TV

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Model 42la45h power will not go on - Proscan 42LA45H 42 in. LCD TV

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  • lrouthier945 Nov 06, 2010

    my husband is an electrician can you send me the part # and where we can get it

  • lrouthier945 Nov 06, 2010

    yes and thank you
    very helpful I think will know better when we get the part and it works

  • lrouthier945 Nov 09, 2010

    thank you for your help we seem to have another problem we installed the part and now we have the red light showing which we did not have before but we get no blue light and no picture or sound

  • lrouthier945 Nov 09, 2010

    thank you for your help can you let me know if you come up with an answer

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Sounds like a failed or at least failing power supply / power board inside the TV. Unfortunately this is a very difficult repair, and unless you are an electrician I would not recommend attempting it. You will want to contact a local TV repair person in your area if you are sure this is out of warranty, more on that in a bit here. This is actually the most common problem with this type of TV, I see it every day, it just happens - sometimes with new TVs and sometimes it takes many years for it to happen.

If you think it may still be under warranty please contact the manufacturer to file an RMA. If you happened to purchase the TV with a major credit card (not a debit card) there is a good chance it may still be under the free extended warranty most credit cards place on electronics. Please contact your credit card company to inquire if they do this, and they will be able to file the claim and get you a refund for the TV.

If you want to attempt the repair yourself please let me know and I will get you the part number and a place you can purchase it from for what you need.

So sorry that I don't have better news but it is definitely a power issue internally.

Thanks
Tim

Posted on Nov 06, 2010

  • Tim Grayson
    Tim Grayson Nov 06, 2010

    Sure thing, you can get it here:

    http://www.alltvparts.com/index.php?_a=v...


    Part # is PRO464 or RSAG7.820.968/ROH

    Thanks,
    Tim

  • Tim Grayson
    Tim Grayson Nov 09, 2010

    Yikes well it appears this power supply has taken out multiple components in your TV. It's possible that main board was affected, the video board.. hard to say exactly. Maybe even both. I am looking into this for you, but it will be hard to tell what is the culprit.

    Tim

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1 Answer

My proscan 42la45h model lcd the tv has power but wont turn on. Any suggestions


check fuses. if it turns on via remote control replace batteries. First remove from mains / power for a good ten minutes and see if this brings any benefit. There is not a lot to go wrong with fp tvs really.
If the issue is not one of these, and it does turn on via remote it might be that the control handset is faulty.
After this you can think about getting the set itself diagnosed/inspected

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SCHEMATIC DIAGRAM FOR RCA 42LA45H


Send your email address to me by Fixya, and get a copy of it by return mail.

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Proscan 42LA45H has picture and no sound


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Jun 05, 2012 | Proscan 42LA45H 42 in. LCD TV

1 Answer

Proscan 42LA45H 42 in. LCD TV won't turn on, no red led when plugged


The power supply is the most likliest cause of the issue. You can get replacement power supply from www.tvcircuitboards.com

Mar 02, 2012 | Proscan 42LA45H 42 in. LCD TV

1 Answer

My proscan 42la45h wont get power. no red or blue light


U check the power source like the power a/c outlet?Yes?Tries tv unplug,replug it back like about an hour later.The tv should resetting itself back to the tv factory setting,tv now should have power again.Not.The tv have a power supply board problems and the causes.That the board where the tv power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

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Cant find the part


Try shopjimmy.com ,Good Luck

Jan 31, 2009 | Proscan 42LA45H 42 in. LCD TV

1 Answer

Need user manual


Here's the link to all Proscan TV Manuals =>

http://oncorpus.com/down/down.htm

Here's the link to your Proscan model#42LA45H 42" lcd tv =>

http://www.oncorpus.com/down/ENG/42LA45H%20English%20UM.pdf

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