Maker Pro
Maker Pro

Sanyo DP26648 television, white screen.

D

David Farber

Jan 1, 1970
0
This Sanyo DP26648 television powers up with a white screen. Looking through
the archives, it has been reported that there is a defective ribbon cable
that causes this problem. One specific report which is detailed here:
http://www.docendi.org/sanyo-t240744.html?s=374b1e6b350125947468fde1448e0935&
says,

"Clean glue like material from spaced further apart trace of FFC ribbon - or

Replace the ribbon wire < P/N: N6CD FFC>

Connects panel to timing control assy."

The comment about the glue like material makes sense. The second part about
the "further apart trace," doesn't make sense to me.

Secondly, the connector that is interfaced with the cable seems to be one of
those zif connectors. Anyone know the sweet spot on how to open those
things? I know that one push in the wrong direction will snap that thing
right off the pc board. If need be, I can photograph it and upload it later.

Thanks for your reply.
 
D

David Farber

Jan 1, 1970
0
David said:
This Sanyo DP26648 television powers up with a white screen. Looking
through the archives, it has been reported that there is a defective
ribbon cable that causes this problem. One specific report which is
detailed here:
http://www.docendi.org/sanyo-t240744.html?s=374b1e6b350125947468fde1448e0935&amp;
says,

"Clean glue like material from spaced further apart trace of FFC
ribbon - or

Replace the ribbon wire < P/N: N6CD FFC>

Connects panel to timing control assy."

The comment about the glue like material makes sense. The second part
about the "further apart trace," doesn't make sense to me.

Secondly, the connector that is interfaced with the cable seems to be
one of those zif connectors. Anyone know the sweet spot on how to
open those things? I know that one push in the wrong direction will
snap that thing right off the pc board. If need be, I can photograph
it and upload it later.

Thanks for your reply.

Here is a link to a picture of the connector.
http://members.dslextreme.com/users/farberbear/Repair/zif.html

Thanks for your reply.
 
D

David Farber

Jan 1, 1970
0
Sansui said:
From the looks of the cable, with no experience on this set at all...
Many of the zif connectors look alike from the top, but the way they
actually disconnect is told by looking at the ends of them. Usually,
you can pull the black piece up a hair, and slip the cable out. Some
cheap connectors want to break if you pull the top header off all of
the way. Some cables have interlocks though, so you can't pull the
cable out without taking the header off. I haven't seen these in a
long time outside of industrial applications.

I wound up prying underneath the black piece very gently with two small
screwdrivers. I just made my way across the piece with the screwdrivers
putting slight pressure on it. It took several times to see any progress.
Eventually, the piece started to rotate and finally stood up at a right
angle. I got the feeling that one extra ounce of force was going to destroy
that thing.

I really didn't see anything that resembled glue in or near the connector.
There was some double-sided tape midway down the cable to secure it but I
don't see how that could have interfered with the connections.

Thanks for your reply.
 
D

David Farber

Jan 1, 1970
0
David said:
I wound up prying underneath the black piece very gently with two
small screwdrivers. I just made my way across the piece with the
screwdrivers putting slight pressure on it. It took several times to
see any progress. Eventually, the piece started to rotate and finally
stood up at a right angle. I got the feeling that one extra ounce of
force was going to destroy that thing.

I really didn't see anything that resembled glue in or near the
connector. There was some double-sided tape midway down the cable to
secure it but I don't see how that could have interfered with the
connections.
Thanks for your reply.

I received the new cable today and installed it. Problem fixed. I guess that
was a good tip after all.
 
Top