Flickering Panasonic


  #1  
Old 03-21-02, 09:31 PM
clueless bulb
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Lightbulb Flickering Panasonic

Hi, I have a panasonic 27" that flickers. The strange part about the flickering is that if I physically hit the sucker, the flickering stops... at least for a while. Now for a while this problem was solved by a tennis ball between me and tv, but the flickering just became too much and frequent. Is there anyway to fix the tv. I figure it has to be some loose part, but as to what part I'm at a loss. And if I have to replace a part, where could i go? Thanks!
 
  #2  
Old 03-22-02, 05:53 AM
Smokey
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Here's a website that you should have in your Favorites file:

http://an.hitchcock.org/repairfaq/REPAIR/F_tvfaq.html

First, check the antenna connection and make sure you don't have a bad cable or cable connection. If this is good then suspect that our friends at Matsush!ta Electric most likely produced another set with bad solder connections on the circuit board.

If you are adept at minor electronic soldering or have someone around who is adept at these things:

a) Unplug the set and remove the back
b) Set a mirror in front of the TV so you can see the image from the rear of the set
c) Plug in the set and turn it on. Let it warm up for about 30 minutes.
d) Use a long non-metallic wand (NOT A PENCIL) to probe around the circuit boards. Look for a sensitive spot: a spot where you can make the picture act up and do strange things.
CAUTION: SEE THE LARGE WIRE CONNECTED TO THE PICTURE TUBE? FOLLOW IT BACK TO THE CHASSIS AND STAY AWAY FROM THAT AREA. THAT'S THE HIGH VOLTAGE POWER SUPPLY AND WILL CAUSE A NASTY BITE!

e) Turn the set off and unplug it.
f) Use a low heat soldering iron (NOT A SOLDERING GUN) and a little 60-40 electronic solder to resolder all the connections on the circuit board in the "sensitive area"

g) Plug in the set and turn it on.
h) Repeat steps a) through g) as many times as it takes to finally get a stable picture.

This should solve your problem and you can put the tennis ball away. LOL!

If you do need parts, I recommend our friends at Union Electronics at http://www.unionel.com/


Smokey
 
  #3  
Old 03-22-02, 06:05 AM
Smokey
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Not having much luck with the editor on this site this morning.

If you need parts for your TV, I recommend our friends at
Union Electronics at http://www.unionel.com/


If you need a service manual on the set to do any active troubleshooting or to find out part numbers, etc. here is a site
that provides them:
http://www.treasurechestcorp.com/Default.htm

Smokey
 
 

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