Question about Proscan 40LC45S 40 in. LCD TV

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What would cause a Proscan 40LC45S 40 in. LCD TV to have sound bt no picture?

Proscan 40LC45S 40 in. LCD TV Hello, I have a proscan 40lc45s that has sound but no picture (black screen). Does anyone have any ideas? I have checked for the obvious blown caps and saw nothing.

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The chroma ic could be shorting

Posted on Jun 08, 2014

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Posted on Jan 02, 2017

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SOURCE: who makes the proscan 40lc45s tv?

http://www.oncorpus.com/Product/LCDTV/19LB30QD.htm

Posted on Jun 09, 2009

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SOURCE: Proscan 40' 40LC45S has a high pitched hum when it

Same problem here, there is a high-pitched sound in standby. As soon as the light turns blue and the TV is on it's gone. I actually exchanged this TV three times at Best Buy but all the models made the same buzz in standby. I was told that it's normal and in the store you can't hear it since there is too much humming from other TVs around. The power is transformed down to a minimum, just for the remote controls, internal clock etc. and this causes the buzz, like when you dim your lights at home. I hooked it up to a surge-protector for clean power and just switch it off over night. During the day it's hard to hear anyway. - Again, since this is my third (!) Proscan 40' exchange I can definitely say that this is normal for this model. I was just surprised that nobody mentioned the same problem so far on the Best Buy reviews.

Posted on Jun 11, 2009

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My color on my screen use to be excellent. Now it is green and pink. I have the manual but on the menu I see no where there is a color adjustmet


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Dec 19, 2014 | Proscan 40LC45S 40 in. LCD TV

1 Answer

My tv will turn on but no sound, no picture, no display,no menu will light up


Have you tried,
1 Changing the source.
2 Changing the batteries in the remote
3Getting a replacement remote or pushing the buttons on the tv itself
4 Asking a pro

Nov 06, 2014 | Proscan 40LC45S 40 in. LCD TV

1 Answer

Why may TV has just sound with no picture


Back-light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/

Sep 20, 2014 | Proscan 40LC45S 40 in. LCD TV

1 Answer

My proscan 40" isnt working theres no backlight


Do you have sound? If you have sound and no picture most likely you are dealing with either a back light fault or power supply problem. Dim the lights in the room, take a bright flash light and shine it on the screen with the set on. If you see a faint picture, it's back light/power supply related. If I have been of assistance to you please sign my gues book

http://www.back2lifeelectronics.com/Guestbook.php

Jun 10, 2014 | Proscan 40LC45S 40 in. LCD TV

1 Answer

Proscan 40lc45s won't stay on


Try changing the input device to something you are sure, works such as a DVD player. Switch off TV manually, switch off power, remove plug and retry after 48 hours. If problem persists, please refer it to a qualified service technician.

Aug 01, 2012 | Proscan 40LC45S 40 in. LCD TV

1 Answer

Is there a way for me to look at pictures on a flash drive, plugged into the usb port on the side of theTV?


Make sure your flash is formatted to fat or fat32. Insert into your usb port. If it does not connect automatically then just go into user menu and access it.

May 16, 2011 | Proscan 40LC45S 40 in. LCD TV

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