[ICOM] IC-2AT diode matrix question

[sdaitch at ibb.gov]

A BR2325 is a common flat pack watch style battery.  Versions with the 
tabs to solder to a PC board readily available from Newark, Allied and
Digi-Key.

Newark 15C6486
Digi-Key P202-ND

Allied doesn't show, on line, the exact part number extension, but
there are several possibilities....I didn't try to research the
differrences.

73
Sheldon
WA4MZZ
an IC-02AT owner, too



----- Original Message -----
From: D C Macdonald <k2gkk at hotmail.com>
Date: Tuesday, March 22, 2005 6:10 am
Subject: Re: [ICOM] IC-2AT diode matrix question

> Hi, Jack.
> 
> If there is a "Batteries Plus" store near you,
> they can replace or build just about anything!!!
> 
> Mac, K2GKK/5
> 
> 
> 
> ----Original Message Follows----
> From: K6STU at aol.com
> Reply-To: ICOM Reflector <icom at mailman.qth.net>
> To: icom at mailman.qth.net
> Subject: Re: [ICOM] IC-2AT diode matrix question
> Date: Mon, 21 Mar 2005 16:05:08 EST
> 
> 
> hi jack. The battery is a 3.1vdc lithium battery. The battery is 
> charged  
> via
> the +5vdc circuit through D118 in series with D119 to the plus 
> side of the
> battery the neg side of the battery goes to ground. At the 
> junction of the 
> two
> diodes there is the battery lead that goes to the cpu  to Pin 65. 
> that cpu
> was discussed earlier re the diode matrix connection. also  at the 
> junction  
> of
> the two diodes there is a electrolytic cap the plus side connects 
> to the
> junction and the minus side goes to ground.  The junction voltage 
> is 3.1  
> voltsdc
> with power off and 4.5vdc with the power turned on. The part reference
> number is BT101 .  part number is BR2325-1HC. I don't know if they 
> are  
> still
> available from Icom. Hopefully the battery has another number on 
> it that  
> you can
> crossreference.
> Gool Luck.
> Mike
> 
> 
> 
> ----  Original Message  ----
> >From Jack, AE7DX.
> 
> The CPU reset did, in fact , work. I was able to give  my son his 
> firstQSO on 146.52 simplex. Unfortunately when I turned the  rig 
> off and then
> back on later the '02AT was not functioning properly  (same 
> symptoms as
> before the CPU reset). I have to assume that the memory  backup 
> batteryis not doing it's job and will have to be  replaced.
> 
> Oh, well, at least I'm getting nearer the end of the saga.  Thanks 
> verymuch for your assistance!
> 
> 73,
> 
> Jack,  AE7DX
> ----
> 
> 
> ----
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