Question about Panasonic PV-DM2794 27 in. TV/VCR/DVD Combo

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No picture This morning I put the set on and all there is is a horiz. line. I can listen to the set, just no picture

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U will see vertical section 1, see voltage vertical i c 2,see loose contact ic leg and check ic vertical may be that s loose contact i c L A seriese vertical ic ok bay

Posted on Jun 03, 2008

If there is only one horizontal line you have a problem with vertical deflection section

Posted on May 29, 2008

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I have a MITSUBISHI PROJECTION TELEVISION model WS-65809. it power up with a curved red lines across the screen. When the power cord is unplugged for about 24hrs the picture comes on clear for a while and...


When the power up the components get heat up
but some times the heat may be abnormal due to fauly parts or associate parts, and the cct will
malfunction.

Once you check the voltage of all power points and out put section of R.G.B, HORIZ., VERTICAL
in working condition.

Again you check the voltages of all above points when the set stats malfunction.

You can find the exact fault and repaire the set.

May 02, 2011 | Mitsubishi Televison & Video

1 Answer

There's a very narrow line (white) appears at the very top of the screen when the picture scene is mostly black. A verticle adjustment should fix it but where is it?? RCA F36TF720


it may be an electrolytic cap problem as most newer sets are controlled by an I.C. chip for horiz and vert timing/size/linerity

Nov 02, 2009 | RCA F36TF720 36" TV

1 Answer

10-year-old 32" RCA PIP TV just blinked off one morning after about 30 minutes. It makes a continuous high pitch sound, and the on/off switch is completely unresponsive. I assume this is a picture tube and...


It's not the picture tube(especially if image was good b4 it went dead). The high pitch noise is the power supply whinning because it's shorted or overloaded. I just fixed one of these sets - replaced the horiz. o/p transistor and flyback estimate around $120.00-$160.00

Oct 24, 2009 | RCA F32650 32" TV

1 Answer

Picture goes into horizontal lines while watching then you shut it off for 10 min. or so and it resets it self


solder connections in horiz.drive/output circuit.also solder the flyback transformer.if only 10 minutes you need to solder in the
horiz.circuit area.get a magnify glass and usually will see hair line cracks around the
components.

Jul 17, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

HLN507W Samsung DLp Horiz. lines


it sounds like the dmd board is failiing

Mar 13, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

Horiz. sharp line from 2 inch bottom


If the screen is part of your laptop/notebook/netbook, try to connect an external monitor to the VGA port, to see if the video-card in your computer is generating the "weirdness".

If the screen is an external monitor, try connecting it to a different computer, to see if the "weirdness" follows to the new computer,
implying that the monitor is faulty. Also, connect a diffferent monitor to your computer, to see if the video-card is causing the problem.

Sep 22, 2007 | Computers & Internet

2 Answers

No picture has sound, then picture comes on after a while


check for a problem with the horiz.output circuit. maybe bad solder connections or the horiz.osc.

Sep 15, 2007 | RCA F27442 27" TV

1 Answer

Arcing inside no picture


Most times arcing like this is from the Horiz. output transformer (flyback). The insulation has a break down and up to 30 KV will find the nearest path to ground. This would require a tech. to repair the unit. This repair will most likely cost around 250.00.

May 09, 2007 | Sony KP-51WS510 51" Rear Projection...

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