20 Most Recent Proscan 40LC45Q 40 in. LCD TV Questions & Answers

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Possible power supply problem,capacitors may have bulged and leaked restricting the supply from starting. Len

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/

Defectivce ABL [Automatic Brightness Limiter] problem can cause this.

A/D board [Analogue to Digital] might have to be replaced. For more details, just type in the site name "Electro-help" to your search engines' search box [not in the address bar of your browser], and click search. It is an electronic equipments service help site.

All details you want are there. Note the position of hyphen in between words in site name, when you type it in. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts. You can get all details.

You can locate it either at the bottom part of first search page, or at the top of second page. Detailed descriptions are there to help you.

Sometimes, clicking on advertisements by the side and bottom of each post might help you to get details about the availability of spare parts; price etc:-

Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.

• No video, Power light is on or blinking.
• TV is making a clicking noise.
• TV takes a while to come on
• Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



Capacitor being replaced! Fairly easy DIY fix.


Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Check the resolution on your signal source. Well, first before doing that make sure the Proscan is on the right input i.e. make sure it is on the hdmi input if you have it and you signal source connected with an hdmi cable and then make sure the resolution on the signal source is 1080i fixed. Then there should be a button on the signal source remote (# hdzoom or format or aspect). You should be able to change the picture size with the #hdzoom, format , or aspect button.

The whining noise originates from the backlight inverter board of the tv. I would like you to take off the back cover and have look to confirm and let me know.

Sai.

Check the sleep timer and see if it's selected? Does it turn off at the same time every time?

I had a similar problem with my 42 in Philips LCD HDTV.

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you.

1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found at tv-part.com but supplies are limited. I would definitely shop around though.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.

Hope this helps and if it does please rate it accordingly. Good luck.

It sounds like there may be an issue with the power supply or internal components of your Proscan PLDED5030A-RK TV. The blinking blue light and popping sound could indicate a malfunction that is preventing the TV from turning on properly.

Here are a few steps you can try to troubleshoot the issue:

1. Unplug the TV from the power outlet and leave it unplugged for at least 10-15 minutes. This can help reset the internal components of the TV.

2. Check the power cord and connections to ensure they are secure and not damaged. If there are any visible signs of damage, such as frayed wires, replace the power cord.

3. Try plugging the TV into a different power outlet to see if the issue persists. This can help determine if the problem is with the power source.

4. If the issue continues, it may be necessary to contact a professional technician or the manufacturer for further assistance. They can diagnose the problem and recommend the appropriate repairs.

It's important to exercise caution when dealing with electronic devices, especially when there are signs of malfunction such as unusual sounds or lights. If you are unsure or uncomfortable with troubleshooting the issue yourself, it's best to seek help from a qualified professional.

Download the manual from PROSCAN 55? UHD LED TV ' Proscan (proscanvideo.com) and see section 13 (Troubleshooting Guide).

If it was my TV I'd recycle it then buy a name brand set, Proscan sets are plagued with issues.

If it is a copy remote for the Proscan Model you have, it should work when you insert the batteries. If it is a Universal Remote, you need to put the Proscan Code into it.

Question edited for clarity. You can't. Just buy a replacement remote! https://www.google.com/search?q=proscan+sound+bar+psa3713-c+replacement+remote+control ..

There is some troubleshooting in the link, but it is a budget unit that sells for around $90. If it has outlived its warranty, you just replace it. If it is within warranty, claim on it. They aren't really repairable. https://www.google.com/search?q=proscan+elite+tablet+and+dvd+combo+no+picture+only+sound ..

It is a standard Android Hard Reset. You will get an option to backup your data. https://www.google.com/search?q=proscan+elite+peltdv1029+factory+reset