Transponder prob..

Yup... more info.. tech here says there is a timing circuit that
gets initialized when switched is closed. I can hear the switch
"click" off when released.. He suspects the IC or something
associated with it...

It is out and off to him now, will report results here when I
get the final result..

Here go more AMU's

Dave


On Sun, 13 Nov 2005 21:57:42 -0500, "TaxSrv"
wrote:

"Dave" wrote:
While squawking IDENT , our "ident" stuck "on"

ATC confirmed we were continuously "identing"

Cycling the transponder to off then on again cleared the
ident fault.


The service manual sheds little light on the fault. So we start at
the switch, and then if OK note when that momentary switch is
closed, a pin on the big IC chip labeled IDENT is grounded. Could
be the chip, or the capacitor which sets the timing for the indent
to be on. It says this time is variable, suggesting a timing
capacitor somewhere (manual silent on this though). Will be
expensive to fix if the chip is bad, unless jiggling it in the chip
socket fixes it (if socketed).

Fred F.