Question about Proscan 19LA25Q 19 in. LCD Television

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Receving audio, but no video

Can see the guide and change channels, getting audio for each channel but no picture. screen is not black, but has a green rectangle shape, in the upper left corner. it reminds me of the tracking issues that you use to have with VCRs. This occurred when we first purchase the TV, but it went away. Any suggestions?

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Proscan 19LA25Q 19" LCD HDTV at Crutchfield.com Proscan 19LA25Q 19' LCD HDTV: Detailed Info, Features and Specs, and Photos. ... Instruction Manual; Product Registration Card; Limited Warranty Card ...
www.crutchfield.com/ISEO-rgbtcspd/App/Product/Item/Main.aspx?i=68319LA25Q - 46k

Posted on Apr 04, 2008

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I do not have the remote to my Hitachi TV and need to change the channel to get picture. How do I manually change the channel if the screen is black.


Look on the TV for buttons for power, volume up and down, channel up and down and menu.You can get a new factory remote from here :

Jan 22, 2017 | Hitachi Televison & Video

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Have a westinghouse lcd tv 50inch model ew50t5kw and would like to know before changing any parts or boards what causes a blue screen no sound or picture


  1. Frank: Verizon. com says try this: Change your VCR's Channel to 3 or 4. Most blue screen issues are caused by the VCR not being set to Channel 3 or 4. If changing the VCR's channel (using the channel buttons on the VCR or from the VCR remote control) did not change your TV screen, go to step 2.
  2. Make sure your TV is not in Video mode. There are three possible ways to change your TV's mode using your TV remote control: 1) Press a Mode button, toggle through the options and select TV, 2) Press a Video button to change your TV's mode from Video to TV or 3) Press Menu, locate Mode or Audio/Video setup and select TV from one of the options. If you are not sure how to change your TV's mode, see your TV's user guide for more information.
  3. Check to make sure your set-top box is plugged in and turned on.
  4. Check to see if other TVs (connected to different outlets) have a blue screen. If they do, contact the Verizon Fiber Solutions Center.

May 21, 2015 | Westinghouse Televison & Video

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How can i play ps2 on lcd without having a black and white screen ? how can i connect the cables ?.....when i look at the back of my lcd i find three ports (red white yellow) when i use them the screen is...


1) The set of input (Yellow= Composite video, Red= Right channel audio, White= Left channel audio). This set of input is for composite video.

2) The set of input (Red= Red video signal, Green= Green video signal + sync, Blue= Blue signal, Red= Right channel audio, White = Left channel audio (the Red and White will be grouped close together). This set of input is used for Component video for HD signal.

You should try using composite video source (Yellow RCA jack) from DVD player and feed to the monitor and see if it works OK with all color showing that way we acn find out if it is the video source problem or the monitor video signal processing problem. Try the PS2 on the TV if it works OK also.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
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

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Aug 20, 2011 | Samsung SyncMaster 940MG 19" LCD Monitor

1 Answer

Magnavox 32MF337B/27 power supply works and like another writer when power is turned on the audio works the channels change and you can tell that all remote and on set keys work, but no picture except an...


hi i have a 50" magnavox that has a problem, i was looking at several websites and i find out the dirfferent posibilities.
in your case i have 2 posibble answers.
1) negative image
tv turns on and shots down in 2sec
flashing pixels on screen
dark image
has sound but no video
screen goes black and then return to normal picture
vertical color lines on screen no video
vertical color lines with video
vertical bars on screen
horizontal lines on the image
picture goes red after while
IT COLUD BE (X or Y or Z SUSTAIN BOARDS )

2) just left part of screen working
just right part of the screen is working
vertical and horizontal lines on screen
part of screen not working
some functions not working
no video but has sound
functions not working at all
IT COULD BE (LOGIC CONTROL BOARD)
TErry HerreRA

Oct 04, 2009 | Philips Magnavox 42MF521D/37 Television

1 Answer

Can not see the Video when I input it, see only a blue screen.


ok hook up the audio video in the OUTPUT on vcr and INPUT on the tv then make sure tv is changed to the right input channel now go to vcr and change that channel to AV,.if AV isnt there you may have to go into menu of vcr and do a channel search,but when you change it to AV on vcr you should see the picture

May 27, 2009 | Televison & Video

1 Answer

No Picture -- just a black screen on my vizio vx37L


Did you hear any pops before the screen went black?
You've tried completely discharging it? Disconnect everything off the TV, all cables and power.
Press and hold the power button on the TV for at least 20 seconds.
Let it sit, and in about an hour, plug just the power in (directly to the wall) and see if it comes on. There should be an indicator light, is it white or orange now? Was it a different color before?
Odds are it's a board, be it the main or a video, don't know for sure. If you can take the back of the TV off and see if there are any evident signs of damage, blown or swollen capacitors, burnt traces or resistors/diodes, etc.

Oct 25, 2017 | Vizio VX37L Television

1 Answer

Blank Screen.


Wow, thats quite a unique symptom. Usually on the Panasonics, when the screen goes blank it is because the vertical output IC has cracked solder joints, but in that case you will not see the channel numbers displayed on the screen. If you have good audio but see absolutely no picture but you do get channel numbers on the screen then there is a problem in the video circuits. The fact that you say it happens occasionally suggests that a solder joint has cracked loose somewhere in those video circuits and that should be an easy repair that should not cost too much money, so it is fixable and I would not toss the TV yet.

Jul 29, 2007 | Panasonic PVQ-M2509 Combo

1 Answer

No picture but sound


How did the cable person hook up the cable? Was it thru an rf connector and you need to put the tv on A channel . Or are there video and audio cables from the cable box to the tv? We need to have more info please. Thanks

Jun 12, 2006 | Philips 42PF9630A 42 in. Plasma Television

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