[Kenwood] TR-2400 ground wire to battery

[Clif Holland]

It goes to a small choke on the board and it has fried. Very common problem.

Clif Holland, KA5IPF
AVVid
Authorized Kenwood and Icom Service Center
816 W Shady Grove Rd
Irving, TX 75060

www.avvid.com

1-800-214-5779
972-870-0630 (Local)
----- Original Message ----- 
From: "Dave Edwards" <kd2e at comcast.net>
To: <kenwood at mailman.qth.net>
Sent: Friday, June 11, 2004 9:58 AM
Subject: [Kenwood] TR-2400 ground wire to battery


I was hoping someone on the list could help with a simple problem.
I have a TR-2400, new to me that would barely work with a good battery.
A good battery or 10 volts....same result.
It would show the low battery indication, not transmit, and very low and
distorted audio.
Plugging in the charger, would correct things....but would exhibit that 60
cycle hum that one would
expect from running off a charger.
In fooling around, I found that if I hook a alligator clip wire from the
negative terminal of the battery to the ground of the radio that the problem
is fixed. In fact, the battery positive to ground of the radio only shows
about 8 volts...when across the battery is a bit over 10.
So, I have a bad black battery wire going into the radio.
Does anyone have a schematic that indicates where the black battery wire
goes?
I ask because it seems to go between the transmit and receive boards, and I
am not sure I want to do major surgery to check that wire. It may be easier
to just route a new one to a conveniant ground.
Thanks for any tips!!
....Dave
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