Question about Proscan 40LC45S 40 in. LCD TV

1 Answer

How to test tuner on 40lc45s

What to do to change tuner

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Proscan Master
  • 74,136 Answers

You have to open the set to replace the tuner. It will be soldered to a printed circuit board. You must have soldering iron, de-dolder pump, and all other testing equipment with you to replace it. It is a skilled work. A user, who is not experienced in working with electronic printed circuit board, can't do this work. After replacement, there might be some adjustments too. To do these adjustments, you must get into the TVs service mode option, which is quite different to that of user mode options.In fact, it will be best to contact any experienced service technician to do this work, rather than trying to do it yourself, and ruin the set.

Posted on Nov 27, 2012

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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

What else should I check on my Sanyo DP42840?


This could be the tuner overheating and sending a signal from the tuner board CPU to the power board to instruct the tuner to turn off. Check that there is adequate ventilation in the TV. Try testing with a fan to see if that changes the behaviour of the loop that you get.

Aug 31, 2014 | Sanyo Televison & Video

1 Answer

Proscan 40LC45S screen flickers, red light flickers, won't turn on


check bad component parts at the power supply board as will as burnt parts.

Sep 07, 2012 | 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

Unable to change channel to get off of AV


1) test the button from channel for dirty , open or defective.
2) test the TUNER, lubricate tuner contacts.
3) see tuner, i-f, video detector, AGC , rfamp/converter ,amps, circuit see the block diagram
God bless you
7_11_2012_12_30_04_pm.png7_11_2012_12_32_08_pm.gif

Jul 10, 2012 | Televison & Video

1 Answer

The color is distorted there is a psychedelic green around. You can see the color images ok but there is a super imposed green color on the screen. Do you have any idea on the problem do I need to replace...


The tv problems u are decribing are 50/50 it could be the main board tv Tuner signal board is dying and shorting out or the tv LCD screen panel itself are leaking radiation and slowly shorting out.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish main board tv Tuner signal board for the replacement.50/50 could get this tv fixed by replacing this main board tv Tuner signal board.If after u replaced the board and still have the same problems,than u know for sure it is the tv LCD screen is dying and leaking radiation and slowly shorting out.Than u know for sure this tv is not worth as a whole tv anymore,now only as salvages tv for it PCB circuits boards only.U can return the main board tv Tuner signal board to the dealers.Get some money back,but must lose some money,like subtraction like from the shipping and handleling cost and the useually the 10% restocking fee.

Aug 14, 2011 | Proscan 40LC45S 40 in. LCD TV

Not finding what you are looking for?
Proscan 40LC45S 40 in. LCD TV Logo

Related Topics:

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Proscan Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74136 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

Are you a Proscan Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...