Question about Panasonic CT-27SX11 27" TV

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I get horizontal Line on the screen no picture, Panasonic Std 27''

I get sound, if I leave it for few minutes it get back up to 25% picture in the middle of the screen and goes back to line. No issues on sound. Need help!!

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  • 121 Answers

Bad electrolytic vertical circuit. need tech,

Posted on Dec 02, 2008

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27" (diagonal screen) Panasonic regular crt TV few years old, no serial # on front and too heavy for me to look at back. Picture comes on great, then a grey (NOT BLACK) screen covers 99% of screen with a...


It will be good to check the capacitor on the +B voltage that goes to the power section in the main board. A filter capacitor of about 47mF/160 V can be defective.
Next check the capacitor on the HT line to the grid-22mf/250V replace.
If possible loop on capacitors in the horizontal section particulary the IC.
Now the tip I can offer:
If the fault occurs on heating shcek out htis area to confirm and isolate the component.
But finally I understand that when you press any key the picture is good.If so check the memory IC/cmos IC in this section for logic control, it might be having a switching fault, a conflict or the video noise is coming on in default but goes off in the data selection mode. Do a soldering around this section on the IC , capacitor and see if the fault goes off or becomes irregular when this section is heated, if so there is a semiconductor producing this noise error .
So start from the begining so that we have a clean voltage inside.
I hope my advice helps.

Aug 22, 2010 | Panasonic CT-27G14 27" TV

1 Answer

White horizontal line at top of picture


that is a capacitor arround 47 micro farads 25 volts or 2.2 /3./4.3 micro, replaced with 35 volts
in vertical circuit amp that is a 30 minutes job for a good tech
hope that will help you
have a nice day

Mar 17, 2010 | Toshiba 27A32 27" TV

1 Answer

Panasonic CT-27L8SG displays gray screen and white hoizontal line


Is it still under warranty?
If not I would find a good TV Service Shop and have them check out the power supply as there more than likely a 'Capacitor' much like a battery that is going bad.
Blessings,
A/V Media Guy

Nov 22, 2009 | Panasonic CT-27SL14 27" TV

1 Answer

Toshiba 36A50 sound, light line horizonally on black screen


It is my guess that you have some intermitent solder connections in the Vertical output circuit.
Hope this helps,
Skyassoc

Jun 23, 2009 | Toshiba 36A40 36" TV

1 Answer

Turned on, and picture went out(just a line)with sound. never had problem with picture,but remote stop working about a year ago, cable tech said its tv not the remote


If it's a horizontal line across the face of the picture tube, your TV has a problem with its vertical output. Most likely, it's bad solder connections to the vertical output IC. Because this part gets very hot during normal operation, the connections to the circuit board can crack and the part quits working. All you see then is that narrow line across the tube. A few minutes with a soldering iron to repair the connections is usually all that's needed to fix the TV. It's also possible the part has truly failed, but the bad connections a much more common. A service shop could do the repair if you don't know anyone with the soldering skills.

Mar 29, 2009 | Panasonic CT-25G6 25" TV

1 Answer

Have slide picture on top.5"after a minutes stop at 2"


check for dry electrolitic capacitors around the vertical output section

Oct 02, 2008 | Panasonic CT-27G14 27" TV

1 Answer

Toshiba 27D46 Black Screen - White Horizontal Line


I fixed the problem by taking it to a repair shop

Apr 24, 2008 | Toshiba 27D46 27" TV

2 Answers

Horizontal White Line


Sounds like something is getting hot causing voltage loss or drive pulse loss to the vertical IC. Maybe you have a bad solder joint. Try tapping the circuit board around the vertical section. A capacitor could be heating and opening up. Stargazer Also you might try using circuit cooler spray and make the problem show up.

Apr 19, 2007 | Sansui TVS2750 27"

4 Answers

Jvc av-27730 27"


One thing you should not do with electronic devices which have a start up proceedure is to turn the power off, and then on again without a wait of about five minutes. Some equipment manuals warn you about this, and specify a longer period. The start-up has to have time to reset. It will be more likely to reset if you do not leave it on standby, and even unplug it. In your TVs case you need to describe the distorted picture as it may give a clue to a fault, or incorrect start-up. The horizontal line indicates the frame timebase had stopped working. No picture could be a fuse blown inside the set, or a timed cutout which may reset after a time. Try after several hours to see if it comes on. If it is just the frame timebase (vertical) it is worth repairing.

Oct 22, 2006 | JVC AV-27230 27" TV

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