732A missing digits?

732A missing digits?

Post by FineMedi » Thu, 20 Feb 2003 10:43:53

Hi-
I have an old Kenwood 732A. I fired it up the other day to find the first 2
digits of the UHF display missing. Anyone have any quick ideas for a repair?
If not its going in for service...
Thanks.
Bill
 
 
 

732A missing digits?

Post by KB7M » Fri, 21 Feb 2003 13:49:09


When my display went bad, I ordered a new display.  I don't recall the exact
site on the internet that I ordered it from, but I found it by doing a
Google search.  The repair took about an hour, and is probably not for the
faint at heart.  It involved completely disassembling the faceplate.  There
was no soldering involved.

On the other hand, if you open up the faceplate and disassemble it down to
bare LCD glass, there are four set of contacts on the circuit board and
matching sets on the LCD glass.  There are four pieces of ***y material
that fit between the circuit board and the LCD glass.  These have a dark
line of conductive material that carries the signal from the circuit board
and the LCD glass.  Try cleaning the contacts on the board and the top part
of the ***y material first and carefully reassemble.  If that does not
work, pull it apart again and clean the other side between the ***y stuff
and the LCD glass.  My guess, since you only have 2 digits out, is that only
one set of contacts is the problem.  In fact it is possible that it is just
loose.  At any rate, you will be no worse off than you are.  If you kill it,
you just have to order a new display anyway.  it comes as a unit with the
LCD and circuit board all assembled.

Good luck!


Quote:> Hi-
> I have an old Kenwood 732A. I fired it up the other day to find the first
2
> digits of the UHF display missing. Anyone have any quick ideas for a
repair?
> If not its going in for service...
> Thanks.
> Bill