Question about Panasonic TH-42PWD6UY 42 in. HD-Ready Plasma Television

1 Answer

Picture on and off

I have a Panasonic CT-27G13. When I turnit on the picture comes on but goes black within a minute. After a short time it will flicker on for a few seconds and then off. This repeats. Any idea what is wrong? Is it a easy fix? Maybe something I can do myself?

I also have another Panasonic, CT-30WX54, which has a problem. When I push the on-off button nothing happens. The green power light does not come on at all. Could this be only a fuse? Thanks

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  • enemes May 19, 2009

    What is the problem? Any idea how much the fixes would cost. I am think of just dumping them. Any help would be appreciated. Thanks

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  • Expert
  • 92 Answers

These arent easy fixes,have them serviced

Posted on May 19, 2009

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1 Answer

Panasonic ct-27g12vsoundnopicture


Direct view or regular TV.

Sound but no picture:

No light on the Screen?

This is rare as if no light usually no sound.

Here is what to look at first (little pun):

In the neck of the picture tube itself (have to remove back and turn set on-----be careful--------just look and do not touch anything inside)

Look in the neck with the set on---you should see 3 faint lights in the neck---the filaments for the tube.

They will not be extremely bright but you should see them; they are supplied 6.3 volts from the set.

If they are not lit it is your problem.

Understand please when I answer a question I never know how much if any skills someone has.

First either check or have someone else see if the filaments are lit.

If they are not---I can explain how to resolve this issue and fix the set.

This is the most likely area for your problem--some sets with this will go dim and then come back up to normal or near normal brightness.

Use the "make a comment button" (tiny) on this page to reply.

Mar 25, 2012 | Panasonic CT-27G13 TV

1 Answer

Hi Expert, I have the CT-27G13 and it has the thin horizontal line of light running across it. Can you tell me how to fix it?


This is an easy repair if you've ever soldered and would not be too costly for a repair shop to do it for you. The problem is a bad Vertical Output IC (usually mounted on an aluminum heat sink with the part on it labeled LA78?? ) and 1 or 2 bad capacitors. Some times you can even fix the problem by re-soldering the contacts of the IC- To find the IC follow the 4 wires that come from the Yoke (which is a contained coil of wires slipped over the neck of the picture tube(s)) back to the board. 2 of the wires go to the horizontal o/p and 2 to the Vertical o/p the thinner gauge wires are for the vertical. Be sure to vote/rate me if this helped Thanks!
In this case the vetical o/p IC is LA7838 and the IC is located at the right front corner of the PCB (main)the 2 capacitors are- 100uf 35V and 220uf 25V.

Nov 06, 2009 | Panasonic CT-27G13 TV

1 Answer

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there is a loose connection in you PCB , shut off the tv unplug it, then open the back cover remove the PCB. turn it upside down. Resolder the semiconductor leads. all

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Sound only works when vcr is turned on


When not watching a tape, be sure power is off ( VCR ).....
How is the picture...? When you watch tapes, do you put the
TV on channel 3 or select video..? Also, what is signal source ?
Cable ? Box ?.....................T.

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you have problems with Ic vertical la7848 you need resoldering or change

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The solder joints on the vertical output IC have come loose. This is very common on those sets. If you do not have any experience resoldering small parts on PC boards, have the IC resoldered by a qualified tech.

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