Akai plasma problem

[max]

I working on Akai plasma tv model PDP4298ED1.Tv working good in about 1
hour then picture start shaken and looks like scramble picture then
picture completely disappear and tv shuts off.Is anybody have a similar
problem with this model?What might be failed?Thanks

 

[Sjouke Burry]

max wrote:

I working on Akai plasma tv model PDP4298ED1.Tv working good in about 1
hour then picture start shaken and looks like scramble picture then
picture completely disappear and tv shuts off.Is anybody have a similar
problem with this model?What might be failed?Thanks

Heat?

Put a ventilator pointing at the (open?) backside and see if
the problem re-appears.

 

[b]

On 11 feb, 02:14, max <max...@surewest.net> wrote:

I working on Akai plasma tv model PDP4298ED1.Tv working good in about 1
hour then picture start shaken and looks like scramble picture then
picture completely disappear and tv shuts off.Is anybody have a similar
problem with this model?What might be failed?Thanks

change all the caps in the power supply secondary.
your problem is that Akai ceased to exist years ao, that is now just a
name badge stuck on the set. it could be made by anyone....
-B

 

[max]

Ib wrote:

On 11 feb, 02:14, max <max...@surewest.net> wrote:
I working on Akai plasma tv model PDP4298ED1.Tv working good in about 1
hour then picture start shaken and looks like scramble picture then
picture completely disappear and tv shuts off.Is anybody have a similar
problem with this model?What might be failed?Thanks

change all the caps in the power supply secondary.
your problem is that Akai ceased to exist years ao, that is now just a
name badge stuck on the set. it could be made by anyone....
-B
I checked all caps by ESR they all looks good.No leakage and value

matched with cap's sign.Do you think I still need replace all of them?

 

[max]

max wrote:

I working on Akai plasma tv model PDP4298ED1.Tv working good in about 1
hour then picture start shaken and looks like scramble picture then
picture completely disappear and tv shuts off.Is anybody have a similar
problem with this model?What might be failed?Thanks
FOUND THE PROBLEM.The problem was not in PS board but in Logic

Board.Just removed each IC from the crib (there is 2 ICs in crib)clean
the contacts by contact cleaner put it back and BINGO.Tv starts working
like new.Thanks anywas for your suggestions.