From cbfsb!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!spool.mu.edu!hri.com!noc.near.net!uhasun!arrlhq!rschetge Mon Apr 20 18:21:01 EDT 1992
Article: 17752 of rec.radio.amateur.misc
Path: cbfsb!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!spool.mu.edu!hri.com!noc.near.net!uhasun!arrlhq!rschetge
From: rschetge%arrlhq.UUCP@uhasun.hartford.edu (Bob Schetgen)
Newsgroups: rec.radio.amateur.misc
Subject: Re: KP for Kenwood tr2600
Summary: How to fix TR-2600 keypad
Keywords: repair Kenwood TR-2600
Message-ID: <581@arrlhq.UUCP>
Date: 20 Apr 92 15:38:04 GMT
Sender: uhasun.hartford.edu!arrlhq!rschetge (Bob Schetgen)
Organization: American Radio Relay League
Lines: 13


     I have a TR-2600, and a few years ago the keypad 
failed. The symptom was that buttons in one column of the 
pad did not work. I opened the radio up hoping to find a 
loose wire that I could re-attach--no such luck.
     The "keypad" is a PC board mounted directly behind the 
buttons. There are several diodes (and little else) on the 
board. I checked the diode closest to the affected buttons, 
and it had failed. Once it was replaced with a 
garden-variety switching diode, the radio worked fine. So, a 
new keypad may not be necessary. I hope this helps.

73, Bob.