Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Picture in narrow line on 35" Tube set

I have a tube set, picture is in a compressed narrow horizontal line, about an inch wide. Audio is fine.

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  • 208 Answers

The problem you are describing is called loss of verticle deflection. You will find this will require diagnosis and there is no simple answer to this repair. Most likely there will be either bad electrolytic caps or bad vert. output IC in the vert. circuit.

Posted on Mar 29, 2008

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Posted on Jan 02, 2017

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1 Answer

Screen has gone grey and has fine horizontal lines on entire screen. Blue screen is out.


Either the screen voltage to picture tube is more than normal, or the video processor IC has damaged. There is an other possibility that there is no voltage at the video output card, plugged on to the neck of the picture tube. Anyway, your set need a through checkup, and the work is somewhat skilled one. Just check this site. Soemtimes you might get some details about this fault. The fault is called vertical retrace lines. Thin horizontal lines all across the screen with an inch apart. One among the posts published in the following site have details about this fault.
Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1250 posts to different brand TVs now. Pull up older posts there.


Nov 23, 2012 | RCA F32672SB 32" TV

1 Answer

I have an old 36 inch widescreen Philips CRT TV which has been working fine for 7 years until yesterday when the whole screen just went blue with a series of white horizontal lines. The audio is still OK...


Hello
Since there is a blue screen atleast, I don't think that the picture tube is gone. The fault may be either to its chroma IC or video output section. In both sections fault cases, this type of horizontal lines [parellel to each other at about 1 inch or so apart the entire screen] will be seen. Just check the voltages at the three cathode, ie, red, blue and green of the piclture tube. This can be measured at the picrture tube neck card. If you have through knoledge in electronics, have patience and enough tools to do the work, inform me through Fixya. Without these, you can't work on a tv, especially in Philips.
Otherwise, get it checked by any expereinced service technician. OK.

Feb 21, 2011 | Philips Televison & Video

1 Answer

Green screen, white lines. Audio fine.


You most likely have a bad picture tube. Green gun is shorted. Usually a set this size is not economically feasible to put a new tube in. You may also have a green drive problem on the CRT board. Have a shop check it out for you before junking it. Thanks for using fixya.

Dec 05, 2009 | Philips Televison & Video

1 Answer

TV picture won't open.


The vertical sync circuit has gone bad...you'll have to have it repaired if you want to keep it

Jan 03, 2009 | Televison & Video

1 Answer

Toshiba TV CX2789K Horizontal Line


Failure in the vertical deflection amplifier section. This is usualy from failed components, and sometimes cold solder connections. Most of the time, I found bad capacitors, and sometimes the output IC or transistors (depending on the model type) that have failed.

Take the set to a service center for an estimate. You may find it more feasible to buy a new set depending on the parts that failed and the time involved to do the work.

Jerry G.

Apr 14, 2008 | Televison & Video

1 Answer

25 inch sanyo tv


If the horizontal lines going through the picture are fine white lines, then I would suspect the picture tube as having a heater to cathode short or some other problem. Since some sets have had a 3 year warranty on the picture tube, you may be lucky unless the labor to replace the tube is more than the set is worth. Sanyo is usually not a good name in consumer electronics anymore, so if you're looking for a replacement I would look elsewhere.

Mar 31, 2008 | JVC AV-32F704 32" TV

1 Answer

TV problem


Hello Barbara76,
Is this a Horizontal line (inch or two) across the screen, if so
the fault could be either a faulty Vertical IC,Faulty Electrolytic
capacitors or just simple dry joints.

Regards
Patrick
P-Tronics

Feb 03, 2008 | Mitsubishi CS-27205 TV

3 Answers

Picture tube problem


This problem indicates a defective vertical IC or dry solder joints on the IC connections.

Jan 27, 2008 | Televison & Video

1 Answer

Line in picture


Send me a Digi-pic of the screen please.. Good starting point..
[email protected]

Jan 09, 2008 | Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

1 Answer

Poor picture quality


You need to consider the following tips herein as follow:

1) Field collapse (horizontal white line on screen)
R710 dry joints. Same as C2146TN & C2546TN problem solved with thanks to Mike G & Barty. Power off/unplug. Get to circuit board underside with aerial socket up-R710 is near top and right of centre-cluster of 4 joints best resoldered
2) Picture is horizontally narrowed and deformed
Capacitor C2913 (390nF, 250V) on the deflector PCB had lost capacity

Please let me know any update

Nov 29, 2007 | Toshiba 27AF42 27" TV

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