Hi there,

I'm repairing a CTX S760A LCD monitor, replaced all the caps in the switching
regulator section as they were bulging. That got the monitor going for more
than a second :-)

Now the LCD works fine, apart from an odd shimmering pixel effect in top
right hand corner after the thing warms up for a few minutes.

A photo of these shimmering pixels is at:

http://grrr.id.au/casual/shimmering-pixels.jpg

I've not seen this effect or fault before.

More info:

LCD monitor CTX S760A
Main board CTX S962A/S762A REV:C00
Power board S7 Series Power B/D REV:A10 (replaced switcher section electro
caps)
LCD module AU Optronics Model: M170NE05 V.1, Made in China

Measurements Screen
Off V On V
12V 13.37 12.42
5V 4.94 4.97
3.3V 3.35 3.34
LCD Power 5V 0 4.81

Monitor okay when cold, pixels start shimmering in top-right corner after some
minutes. Show up on black background, display is normal on bright background
but pixels show on single colour background.

Anyone seen this? What fix?

The service manual is available on the 'net, but the one I found is only module
level, no circuit diagrams.

Thanks,
Grant.
--
http://bugs.id.au/