Question about Proscan 42LA45H 42 in. LCD TV
Currently using Component Inputs as Charter Technician could not get HDMI input to Show in the input List. I have replaced the Capacitors on the Power Supply Circuit Board abou 2 years ago. Also have a Vertical RED Line and sometimes a Blue Line about 2 inches from the Right Hand side of the screen.
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Posted on Jan 02, 2017
You MUST get HDMI Driver for your Video Card, it is NOT standard. You need to go to PC makers web site and download latest Video Divers for your PC, then you must set up Multiple Desktops, To do that you must first connect the TV, but leave OFF, connect up to PC, reboot, setup Video Card, turn ON TV, TV will have already been detected, On PC, Share the desktop, or Clone, whatever you wish, now reboot after saving settings. Now you set the TV for HDMI already and it should show you a desktop when chosen. You must select and setup TV, FIRST, then connect the PC. From then on, Turn the TV ON, then turn the PC ON, that way it will Always detect the HDMI port.
Posted on Apr 23, 2010
SOURCE: I have a proscan 26la30q
Yes it is a powersupply board. The faulty caps can cause an Overload that is capable of damaging several other components in the circuit. You can find the part at stores like shopjimmy.com and partstore.com. If you can get me the part number off the board, I can find it for you myself.
Posted on Oct 17, 2010
This is actually really not good don't use a composite with a component input go to the store and buy an HD cord for you're wii if you need help ask the person in the store for a component cable for the wii.
Posted on Feb 05, 2011
There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.
If you aren't tech savvy, this unit needs to go in for repair.
If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering).
Most of the caps that go are 10V 1000uF or 3300uF.
I found some great videos of the procedure (for different brand, but same issue) on youtube.
As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.
Posted on Mar 15, 2011
SOURCE: When I input video to
You are not specific enough, what happens when you try using the tuner ? does the menu work ? does the side that doesn't go gray display video ? I am sorry I will not be able to help you any further so please no emails. Our experience with this problem points to the timing control board also known as the T-CON . Good luck.
Posted on Jul 24, 2011
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