[S600BYC]

My tv of 5 years is playing up! Its going into standby (which i believe is the safety mode switching it off) with no other problems until yesterday when the picture seemed to shrink. A little at first and then it went very small in the middle of the screen Just wondered if this is worth me looking at? I'm a reasonable hand and if i knew what certain areas to look at i could check for dry joints etc and any other basic problem solving before binning it. Thanks greatly for any advice, scott.

[JayCee]

Originally Posted by S600BYC

the picture seemed to shrink. A little at first and then it went very small in the middle of the screen

From top to bottom or in from the sides?

[S600BYC]

from the sides initially (about 2-3 inches) then it seemed is if they both shrank at the same time!

[technospark]

hi
it sounds like a field collapse so i would first look at the lopt (line output transformer)
try this site for a manuel:
www.eserviceinfo.com/index.php?what=search
it should not be an expesive repair it could just be dry joints or a few componants
just be carefull there is very high voltages presant in there even with the set unpluged too
all the best
tec

[S600BYC]

thanks for your tips, i'll have a look over the weekend and let you know how i get on. I tried that website for a manual but never got very far before it asked me for £16 is this the only way to get it? cheers scott.

[GaryB]

Originally Posted by technospark

hi
it sounds like a field collapse so i would first look at the lopt (line output transformer)

If it's coming in at the sides then it's not field collapse. Field collapse would make it contract at the top & bottom.

If it is dry joints, which is possible if the fault is intermittent, the most likely place on this model is in the East-West correction circuit. If you (the OP) doesn't know what that is, then you probably shouldn't attempt to repair it yourself.

[S600BYC]

The fault isn't intermittant anymore! lasts about ten seconds with a picture reduced in size from the sides then goes into safety mode

[S600BYC]

"A circuit is provided for the correction of east-west pincushion distortions on the picture screen of a television receiver. "
You don't need (imho) a vast tv knowledge to understand fault finding in a tv as in effect its the same as finding faults in any circuits/ collection of components. Just theres more places for things to be hidden and there a larger database of past experience which i hope to tap into! I greatly appreciate all tips and hints that have been and (hopefully) are to be given!