Electrohome 89CG01/Mitsubishi CK-3514 PIP problem?

[Ron Novini]

Have a Electrohome Model 89CG01 (which crosses to a Mitsubishi Model
CK-3514) 36" TV (Chassis TA-C-C04R). After restoring the no power
symptom
which this tv had, I discovered a series of horizontal lines in the
tuned picture about 6 inches wide and grouped together at a height of
about 4 inches. The location of this rectangle of lines is interesting.
This tv has four pip pictures in a two by two grid on the screen with
spacing between each pix. In the spacing between the top and bottom
pairs
of pix, two lines of onscreen channel numbers appear in green when the
individual pix are scanning channels. The rectangle of horizontal lines
(slightly noticeable) is located in the gap between the upper and lower
right pip pixes in the gap where the onscreen channel indicaters are
located. The rectangle of lines is slightly to the left of the left edge
of the right side pixes. When the onscreen numbers are on, they are not
affected by this. (They are crystal clear). Firstly, is this a problem
with the pip board? Secondly, I have bypassed the Sony PIP boards in
Mitsubishis (22 microfarad/50 volt BP caps on the Vp connector) before.
However, this unit does not incorporate the same type of PIP board. Can
anyone tell me how to bypass the PIP board on this model? Any info will
be greatly appreciated. Thanks in advance, Ron.


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[JohnAce]

Take the PIP board out and see if the caps are leaky. You should be able to
tell just by looking at it. If that model has the board of course. If it does
do a Google search for Mits PIP problem and you should find the information you
are looking for.

 

[Leonard Caillouet]

This model does not have the easily bypassed module with the surface mount
caps that leak. It does have a tendency to have leaky caps, however, in all
areas of the set, including the PIP module. Any repairs on these start with
thorough inspection and testing of all polarized electrolytic caps in the
set.

Expect to find a couple of dozen bad caps in this set and a few areas with
bad solder joints and possible corrosion from electrolyte.

Leonard Caillouet

"JohnAce" <johnace@aol.com> wrote in message
news:20031214102830.15381.00000754@mb-m12.aol.com...

Take the PIP board out and see if the caps are leaky. You should be able
to
tell just by looking at it. If that model has the board of course. If it
does
do a Google search for Mits PIP problem and you should find the
information you
are looking for.