Question about Sanyo DP26648-R 26 in. LCD TV

1 Answer

Blue and pink dots displayed on screen

Menu screens look fine. Tuner and video input screens have dots across them.

Posted by James Thomas on

  • James Thomas Jul 15, 2012

    The screen is fine whenever you are accessing menu options. Whenever a television channel or video input (component and HDTV)is used, the screen has blue and pink dots across it.

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1 Answer

Parasuraman S

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  • 1,182 Answers

Looks like the display has developed some problem. Try changing the input device to some other like a DVD player, VCR etc. If the problem persists, this might require attention by a qualified service technician.

Posted on Jul 13, 2012

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1 Answer

Video issue.


If model number is correct either in the optical light engine or possible E2P tiny board that has the eprom's on it.

The set has a hard reset that can be tried if you research model number of set for "option menu"

Jun 12, 2012 | Mitsubishi WD-57733 57" HDTV

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Zenith R56W36 Screen rolls constantly with cable hooked to antenna input; works fine on all video inputs


Tuner or a sync problem----using the video inputs bypasses the tuner and front end of the set's signal circuits---consider using a box with audio and video outs to a rear input and bypass the problem.

Jun 10, 2012 | Zenith R56W36 56" Rear Projection...

1 Answer

The entire screen is green but the audio is fine.......the tv is about 2 years old....any suggestions?


Is this from the tuner, or using HDMI/composite inputs? If it's HDMI/composite inputs, unplug and replug the cables at both ends. It could just be dust/corrosion on a connector. If it's from the tuner, connect another source through one of the input cables and see what happens.

It's also possible someone sat on the remote, or otherwise changed the settings by accident, or playing a trick on you. Go into the video menu and check the color and tone settings.

Jun 16, 2011 | Westinghouse W4207 42 in. HD-Ready LCD TV

2 Answers

I have a Zenith Flat Screen LCD projection that the screen is not visable. The volume works and the menu options are visable but the picture does not come in.


Before you replace any parts, try a few experiments. Have you tried using the video input rather than the tuner? The menus are generated internally and enter the video stream later on in the processing than either the tuner or video input. Please try one or more of the video inputs and report the results here. If the video inputs work, the problem is the tuner. If neither work, then the video processing section is defective and will need further troubleshooting.

Thanks,
Dan

Oct 15, 2009 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

HD50LPW42 screen is black with antenna inputs


It sounds to me like you have a tuner issue, I have seen this before. If you have a good picture from other sources and they have the same antenna input, the tuner is suspect.

I hope that this helps you solve your issue.
Thanks
asnowman

Aug 01, 2009 | RCA HD50LPW42 50" Rear Projection HDTV

5 Answers

Vizio P50HDTV10A 50 in. HDTV Plasma HDTV Tuner out


The HDTV tuner is out. Analog tuner, and video inputs work fine.
TV Model P50HDTV10A
Screen Size 50 in.
TV Manufactured Date Jan 1, 2007
Part Type MAIN UNIT
Alternate Part Type SIGNAL BOARD
Part Number 3850-0042-0150(3A)
Alternate Part Number 0171-2272-2163

Jan 08, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Sony vega 36" tv


Hello ladybaker,

This is possibly a problem with the low voltage power supply, or it could be a problem with the tuner. To test this out. What I need for you to do is to disconnect the cable from you cable TV set top box to the RF connector of your TV. Then I want you to connect either your composite or component video cables from the set top box to the TV and using the remote switch the input from the RF (tuner) to the composite input and note if this removes those lines. The select the component video input from the menu and note if this gets rid of those lines.

If the lines disappear for the composite and component video input test. Then the problem is in the tuner, if the lines remain then the problem is in the power supply or there is a video problem.

In either case after the test I would suggest that you have a qualified TV technician troubleshoot the TV and repair the problem. At least you will have input to tell the technician on whether the problem is in the tuner or the power supply/video section.

I hope this helps,

Thank you,

Shuttle83

Nov 02, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

Fixed green light have audio but no video


it sounds like the tuner went out,you would have to know how to solder and remove the old tuner to be able to do it yourself

Aug 28, 2008 | Mitsubishi WS-65857 65" Rear Projection...

1 Answer

Samsung LN-T4065F Dotted lines across screen


tell the idiots where u bought this tv from and demaand a more expensive and better tv on their bill

Mar 02, 2008 | Yamaha DV-S5950 DVD Player

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