- Page 4 Questions & Answers
My proscan TV was working
I believe it's fixable! Take a look on your video and audio cables (behind the TV, the red, yellow and white ones). They must have a problem. Already happened to me!
I hope I've helped...
258 views | 0 helpful votes
Model 42la45h power will not go on
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.
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
So sorry that I don't have better news but it is definitely a power issue internally.
558 views | 1 helpful votes
How do you hook up
some tv's have an option for the signal in the antenna try that in your video setting my man hopefully thats a simple solution to a simple problem the lack of the yellow video input has me head scratching as it odd they didnt provide one ????? strange indeed good luck my friend
241 views | 0 helpful votes
I unplugged the tv to
Simple test to check if the problem is in the remote or the tv: take your phone and your remote to a dark room, activate its camera then point the remote at it and press a button and keep it pressed. If the remote is good then the screen will be lit up and the light will be pulsating. In that case the connector for the remote sensor inside the tv got dislodged when you have moved the tv - just open the back of the tv and reseat it.
42 views | 0 helpful votes
My proscan model 42LB45Q has
Unplug the unit for few minutes, say 30 minutes, and then turn it ON. If the problem persists, this is am internal failure and needs repair.It could be an issue with power supply board, vertical circuit , horizontal circuit and many more. If you have electronics repair experience, would be able to read schematics and use multimeter/ soldering iron, could keep all the precautions - revert and i would be glad to provide you few pointers.
Let me know,so that we could proceed.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
161 views | 0 helpful votes
My tv has power but will not turn on
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
188 views | 0 helpful votes
TV switches off immediately upon
Please leave your set ON for several hours and see if the circuit stabilises.It is possible that some capacitor has weaked with electrolytics drying up resulting in loss of value.
If there is no result then open set and try to look for components visibily faulty like high value filter capacitors. replace if suspected.
Use a good soldering iron to touch up soldering the main board, specially the mP sections, the display drives.
Plug/replug in all connectors after checking in the main board/powersupply/display section.
Use a multimeter to check the failed voltage and trace logically the cut off line voltage.
I hope you work on this tip.
47 views | 0 helpful votes
My Proscan is approximately 2
Rule of thumb, if you can keep your hand on it, despite it feeling hot, then there is no danger of fire. Flat TV's use a lot of power for the ventilation slots available and so appear to be hotter than you would expect. 40"+ screens use about 150 to 200W the same as two old-style bright light bulbs - it's going to give off heat.
71 views | 0 helpful votes
with no picture and no audio i would more than likely suspect the main AV Board needs replacing.
Take the back of your tv and get the part number of the AV board ( THE ONE WITH THE INPUTS AND SCART SOCKETS) then Google or Ebay for a replacement.
95% thisd will cure your problem.
Hope this helps
444 views | 3 helpful votes
This would be the decoder/tuner board giving out, Your going to need to take it in for a replacment of that board.
you can try to unplug it for a while and see if it resets but i doubt that will cure anything long term. Proscan is known for this issue and have been known to have bad decoders in them.
Thanks for being considerate and leaving a ratings and feedback today.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
92 views | 0 helpful votes
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