ESR the filter caps.....
Whats the voltage on CR4118 whilst plugged in but not turned on.
measure the voltage from the diode to tuner case.

kip
"Karen Ray-Stewart" wrote in message
.. .
I have a CTC169PK 46" Tv. The screen has primary retrace lines and
oscillates like a heart beat? The picture is there, kind of camoflaged
behind the retrace. The audio is good. The colour,tint,sharp,brightness,
does not function, they appear on the screen but does nothing to adjust the
picture. Does this leed me to replacing the U3101 system control IC.Does
this IC fully destroy itself or does it just break down section by section,
I might even try a new EEPROM? Any suggetions?

Thanx
James