[Kenwood] Problem with TS940 - 455kHz narrow filter problem
Clif
Clif" <[email protected]
2002年4月29日 09:25:19 -0500
You probably have a broken trace on the filter itself. The voltage is routed
thru the filter to the diodes.
Clif Holland, KA5IPF
AVVid
Authorized Kenwood and Icom Amateur Service
www.avvid.com
1-800-214-5779
----- Original Message -----
From: "Paul B. Peters, VE7AVV" <[email protected]>
To: <[email protected]>
Sent: Sunday, April 28, 2002 10:56 PM
Subject: [Kenwood] Problem with TS940 - 455kHz narrow filter problem
> Problem developed with 940 in that when switching to the narrow filter
> position audio drops out completely. The narrow filter in the 8830 kHz
> position is working fine as evidence by the fact that if 455 if removed
and
> jumper replaced. Audio functions ok in arrow filter position. With the 455
> in place and the narrow filter in the narrow position normal voltages
appear
> on the filter itself. However the voltages at D27 and D34 are 0 on both
> sides of the diode. It would appear to be a diode reverse bias supply
> problem, but I am having trouble tracking it down -- any suggestion would
be
> greatly appreciated.
>> 73 de Paul, VE7AVV
> StoneyGround Station
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