Fw: [Kenwood] TS930 Receive Frequency offset by 500Khz

[Jim Dicso]

An update on this problem.......

Clif (AVVID) suggested a problem with the  PIEXX connection (related to 
PLL).

The TS930 started working on all bands after removing the top cover.  The 
specific pin or connector was not identified.  I pressed each connector and 
assured clearance on all cables.

Thanks,  Jim
----- Original Message ----- 
From: "Jim Dicso" <dicso123 at hotmail.com>
To: <Kenwood at mailman.qth.net>
Sent: Thursday, January 31, 2008 12:53 AM
Subject: [Kenwood] TS930 Receive Frequency offset by 500Khz


First indication of trouble was that the TS930S didn't hear signals on 20 
meters.

I checked all bands using an HP8640B Signal Generator.     Results with RF 
gain full on and audio gain at 1/4 full scale:
a)  copy signals on 160, 80 and 12 meters down to -130dbm or better.
b)  all other bands required signal levels around  -30dbm

By accident, I found that the defective bands actually had normal 
sensitivity to signals 500Khz off the set frequency.
Here are the readings vs HP8640B settings:

HP8640B  Freq             TS930S  Freq          Copy signals @
6600 khz                        7100 Khz                    -125dbm
10625 khz                     10125 khz                   -140dbm
14600 khz                     14100 khz                   -135dbm
18600 khz                     18100 khz                   -130dbm
21600 khz                     21100 khz                   -135dbm
28600 khz                     28100 khz &                -130dbm
                                        28600 khz


This unit has been upgraded with PIEXX digital board replacement.

I'd appreciate thoughts and advice on solving this problem.
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