Question about Bush DVD142RC 14 in. TV/DVD Combo

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Light Grey Background - White Diagonal Lines

All I can see is a light grey background with white diagonal lines for both the TV and DVD.  I can see a faint picure in the background for the DVD and menu stuff.  Can't remember about the TV.  Any fixes please - much appreciated?

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Re: Light Grey Background - White Diagonal Lines

May be your VIDEO ckt.[circut] OR your h/v [high voltage] If you are not a tech.[technician] u should NOT mess with it. Some of these circuits are VERY dengerious! Have someone look inside for you.

Posted on May 12, 2008

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White lines on top of picture

Are you talking about hoizontal lines? Looks like vertis streched? If you are you need top check c27 100mfd 35 vdc /c28 100mfd 35 vdv and ic401 la78040. This is a vert retrace problem.
PLease leave feedback

Feb 21, 2011 | Toshiba MW20FN1 20 in. TV/VCR/DVD Combo

2 Answers

The tv keeps losing color


The remaining red retrace are the giveaway that this is most likely not a CRT problem.

(If there were no red lines, it could be the filament for the red gun of the CRT going on and off due to a bad connection inside the CRT - bad news.)

How is a black and white picture? (Turn down the color control).

If B/W picture is good, then the problem is somewhere back in the chroma decoder circuitry.

Check the video input to the CRT video driver board and signals on that board. If B/W picture is also bad, then you can compare red and green signals to determine where they are becoming different. The red lines in your description sounds like the red video output circuit is drifting and messing up the background level, blanking, screen, or other setting. Could be a capacitor or other component.
Hope this will help...

Jun 01, 2010 | Polaroid TBX-2000AF 20 in. TV/VCR/DVD...

1 Answer

The screen has narrow white lines across the top 3 inches, on cable and with a VCR Tape in.

Where all colors are involved - the lines are essentially white or gray (or with a slight tint due to slight unequal settings of the color adjustments), look for something common like an incorrectly adjusted screen (G2) or master brightness/background/bias control or a problem in one of these circuits, a defective power supply or a problem in the blanking circuitry:

Screen (G2) or master brightness/background/bias control - mark setting and then see if a slight adjustment removes the retrace lines. See the chapter: "TV Adjustments". Of course, if this happened suddenly, the problem is not due to a misadjusted control though a dirty pot is possible - turn it back and forth - this might clean it and restore normal operation.

Power supply or connection to CRT neck board - insufficient voltage will result in the CRT never totally blanking. Check (usually scan derived) power supply components (from flyback).

General power supply - check B+ for correct value and ripple. A main power supply fault might result in these symptoms (and usually many others).

Blanking circuit - this may be a part of the video/chroma chip or separate. Check waveforms to determine if the blanking pulses are making it to the video output.

May 28, 2010 | Toshiba MV13L2 13 in. TV/VCR Combo

1 Answer

White horizontal lines on top of my tv.

This fault is most likely from some worn capacitors in the vertical output section. An experienced service tech can troubleshoot the set, locate the defective capacitors, and change them for you.

Jerry G.

Jan 19, 2010 | Toshiba MW27H62 27" TV/DVD

1 Answer

White lines at top of screen - can't make go away

You have a problem in the vertical output circuit. Check for bad capacitors around the vertical output IC. The value of these caps are marked on the side of them. Thanks for using fixya. Please take a moment and rate this responce.

Nov 30, 2009 | Toshiba MW27FN1 27 in. TV/VCR/DVD Combo

2 Answers

White lines accross top of screen on our 27 inch Toshiba,

lcd or plasma.
are the lines solid or blurred. do they have sharp edges.
You may have a memory problem with the display which can only be repaired by factory trained technicians, or a brave soul willing to find parts on ebay.

May 02, 2008 | Toshiba MW27FP1 27 in. TV/VCR/DVD Combo

1 Answer

We own a Toshiba MW20FP1 Television set/vcr/dvd

If you look in the back of your manual under troubleshooting you will see this particular question addressed. In the beginning of setup you must designate wether the incoming signal is from an antenna or from cable. If you have to have a cable converter box then your TV must be on channel 3 or 4.

Jan 02, 2008 | Toshiba MW20F51 20 in. TV/VCR/DVD Combo

1 Answer

RCA television 20" TV/DVD C231 new, no picture, only stays on 15 sec.

This happened to me. Unplugg the TV and let it sit idle for ATLEAST 20min.  Remove the rear cover of the TV. BECAREFUL NOT TO TOUCH THE TUBE OR COMPASITOR THERE MAY TIL BE POWER TO IT!  You should see a (3) prong wire that is black+white+and grey. That wire is most likely disconnected. You will see where it plugs into the board. 

Dec 13, 2007 | RCA 20F510TD 20 in. TV/DVD Combo

2 Answers

Screen white line problem.

There are two capacitors in the vertival output circuit that need replaced

Oct 19, 2007 | Toshiba MW27FN1 27 in. TV/VCR/DVD Combo

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