Question about Proscan 47LB45H 47 in. LCD TV

1 Answer

Proscan 47LB45H tv turns on , has sound , no video

The tv turns on and i can control things such as switching inputs but there is nothing displayed on the screen and no picture comes through. It does come on and go to the lighted black screen (as if it were in sleep mode) but I can't get any picture to display or menus to show up. i have the same problem on my Proscan 47LB45H made in Nov 1 2007 , i get sound, can change channels but no video is displayed on screen , just light on the side of the screen.

Posted by on

Ad

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
  • 74,198 Answers

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/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Jun 19, 2017

Ad

6 Suggested Answers

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

Ad
  • 4 Answers

SOURCE: proscan tv surround sound hook up

This depends on whether you have digital cable box or not. If you have a Digi Cable Box look for the red/white RCA output and connect this via RCA cable to the Red/White Audio input on your surround.

If just Basic Cable look for a red/white audio output on the back of your televison. connect this to the Red/white in on your surround. Could be called tv in or auxillary.

Posted on Jan 28, 2009

  • 1 Answer

SOURCE: PROSCAN 26" LCD TV with DVD won't show all the channels

bought 26 in pro scan tv can't figure out how to connect dvd player,craziest thing i've ever seen.please help

Posted on Mar 15, 2009

  • 4 Answers

SOURCE: My HDMI 1 input is set to display in 480p not in 1080p???

I think you have to change the settings in your HD box. Look on the diplay window of your HD box, if it says 480 there, thats where you need to change it so it will change then on your TV.

Posted on Apr 14, 2009

  • 1 Answer

SOURCE: need a remote control code

hi,i had the same problem and found out that the samsung remote codes worked,try that.

Posted on May 30, 2009

  • 1 Answer

SOURCE: when i turn the tv on the light turns red rather than green when lite and the screen stays blank.

There is no power coming from the step down transformer

Posted on Jun 01, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The light in my 47lb45h 47


Sounds like you have a power supply that is starting to fail, or your backlights are starting to fail. Hopefully it is just your power supply, as this can be fixed.

Apr 11, 2012 | Proscan 47LB45H 47 in. LCD TV

1 Answer

I have a 47" Proscan


Right now the standby 5vdc power supply for the processor on the main board is working (the standby power supply and the processor are running 24/7, even when the TV is OFF) but nothing else, and since you cannot even turn on the TV at the TV control panel it may mean that the main board is not functioning.
I would inspect the power supply module first though just to make sure it does not have any bad caps, burnt parts since bad DC can make the TV to have strange symptom.
Please read my guides first to understand more.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: www.interliquidparts.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Jul 13, 2011 | Proscan 47LB45H 47 in. LCD TV

1 Answer

I just connect it in my cable box and the image is not clear at all. It's there something i can fix myself?


question is what inputs did you connect it to with what kind of cable? This makes a big difference.

What inputs on the cable box and into what inputs on the TV?

Dec 04, 2010 | Proscan 47LB45H 47 in. LCD TV

1 Answer

Cant get picture or sound...Proscan 27113


You can tune to 90 for input 1 S-video, 91 for input 1 composite and 92 for input 2 composite only.
Most RCA and GE brand replacement remotes will work using code 000, or 001. I use code 237 for my 5 in 1 remote and can get PIP and the setup displays to work.
tom

Jun 15, 2009 | Proscan PS27113 TV

1 Answer

Need a remote control code


hi,i had the same problem and found out that the samsung remote codes worked,try that.

Feb 19, 2009 | Proscan 47LB45H 47 in. LCD TV

1 Answer

Proscan LCD TV 32LA25Q. Displayed picture from a Bell Express-vue Sat. Receiver is smeared like viewing a worn Video Cassette. Appears on all source inputs, including S-video.


Unlike other TVs the sharpness control improves the picture as it's turned up. In this unit the picture improved with control set to it's lowest position (-50). It is now acceptable.

Mar 26, 2008 | Proscan 32LA30Q Television

Not finding what you are looking for?
Proscan 47LB45H 47 in. LCD TV Logo

Related Topics:

117 people viewed this question

Ask a Question

Usually answered in minutes!

Top Proscan Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74185 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...