20 Most Recent Proscan 42LA45H 42 in. LCD TV - Page 2 Questions & Answers


prscanvideo.com

Proscan 42LA45H... | Answered on Feb 22, 2015


It may not control all functions for tv ,only on,off , vol, not menu auto program... try www.directtv.com .

Proscan 42LA45H... | Answered on Feb 22, 2015


Have you made sure your power switch ( I/O )is switched to the "I" position?

Proscan 42LA45H... | Answered on Feb 15, 2015


"Main Board" ~ it's the board where your cable, video player and everything else plugs up to. Part of the board has become defective. I would start right away finding a replacement. If I can assist you further please feel free to contact me.
Col. Dana Gillespie

Proscan 42LA45H... | Answered on Nov 29, 2014


This question makes no sense. Please try again but use a recognisable sentence structure and intelligable phasing

Proscan 42LA45H... | Answered on Sep 07, 2014


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

Proscan 42LA45H... | Answered on Aug 28, 2014


Check and replace the damaged back-light inverter board. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Proscan 42LA45H... | Answered on Mar 16, 2014


With a flat screen TV, this is a bad symptom indeed. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Screen shots to defective flat screen TV are given. You can compare it to your TVs' screen and can make sure about the fault.

Proscan 42LA45H... | Answered on Jan 26, 2014


Sounds like a T'Con fault. If the main processor IC on this board is faulty, it will overheat with time, and the picture will fade out accordingly. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

Proscan 42LA45H... | Answered on Jan 13, 2014


Sounds like the audio output IC has damaged. Chekc and replace damaged component/s at its audio output stage circuit, or replace the audio output card. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Electro help

Proscan 42LA45H... | Answered on Jan 08, 2014


Check and replace its back-light inverter board. To get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.

Proscan 42LA45H... | Answered on Dec 04, 2013


Check its main digital processor board. Contact any service technician.google.com/+GopakumarGopalan

Proscan 42LA45H... | Answered on Nov 24, 2013


just look at the owners manual of how to adjust the picture

Proscan 42LA45H... | Answered on Oct 26, 2013


I see so many here with no sound/no picture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signs of damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down the problem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the generic ones like Radio Shack). Many fuses are special even aside from amperage--Don't put a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses a standby power supply that runs 7/24 and a main supply (some are combined and some not.

Here aside from checking fuses you want to examine all the filter caps on the power/standby to see if any are puffed up or buldged up in some fashion--I attach a photo of a good one---top should be silver metal and PERFECTLY flat and have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating (saves money) which causes them to fail in a year or two---the standby runs 7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over. If set is opened at least look for puffed up and bad caps like in this photo


8_27_2012_9_15_20_pm.jpg


8_27_2012_9_15_43_pm.jpg

Proscan 42LA45H... | Answered on Sep 27, 2013


I'm sorry that the picture on the TV has constant flickering. Please follow the troubleshooting steps and check the operation:



  • Please make sure that the connections are secure and proper.

  • Try connecting a different video source like DVD player or VCR and check the operation. If it works with another device, the issue might be with the input device currently.

  • Also try connecting the device to a different port in the TV if no other devices are available.

  • If the issue persists, try with a different cable.

  • Perform a power resetting and check the operation. To perform the power resetting, unplug the TV from wall outlet for more than 2 minutes and then reconnect it.


Thanks for understanding. Please let me know if you require any clarifications/additional help.

Proscan 42LA45H... | Answered on Jul 14, 2013

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