nec tv model fs-6807s

[sideshow bob]

looking for fault remidies for
this tv to do with noise in picture
when first turned on, but thay
go away after about 1-2 minits.
when pass cold air in the back
the lines come back.
im suspecting the main fillter cap
or somthing in the power supply.

thanks
anyone

 

[Nicholas Sherlock]

sideshow bob wrote:

looking for fault remidies for
this tv to do with noise in picture
when first turned on, but thay
go away after about 1-2 minits.
when pass cold air in the back
the lines come back.
im suspecting the main fillter cap
or somthing in the power supply.

Hm.. you could open it up, spray cold air on each component until you
find the culprit.

Cheers,
Nicholas Sherlock

 

[Phil Allison]

"sideshow bob"

looking for fault remidies for
this tv to do with noise in picture
when first turned on, but that
go away after about 1-2 minits.
when pass cold air in the back
the lines come back.
im suspecting the main fillter cap
or somthing in the power supply.

** That scenario just * SCREAMS * high ESR ( ie worn out) electros.

Physically small caps are the most likely culprits - especially if near a
heat source.

Track 'em down - fit new ones.




................... Phil