[ICOM] Re: Icom PW-1

[Tony Visco]

Adam,
Of course you are correct.  I was going to update my comments from 
yesterday.   This morning I realized when I was having some problems with 
interfacing the 746 Pro I did switch it from 1 & 2  to 1 only. To say I 
forgot is no excuse.  We have the 940S working properly.  I did read the 
manual where when in position 1 it turns the 13.8v as an output in accessory 
2.  Logical that I blew the fuse in the 746 pro.

I need to check if that damaged the supply I put in the #2 din connector 
since the antenna feature didn't work this morning.  I suppose I will check 
out the MicroHam unit as well.  Thanks for the assistance.

Tony

----- Original Message ----- 
From: "Adam Farson" <farson at shaw.ca>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Monday, December 05, 2005 2:31 AM
Subject: RE: [ICOM] Re: Icom PW-1


> Hi Tony,
>
> Did you set the [EXCITER] switch on the PW1 to 1&2? If you did not, pins 7
> on ACC 1 and ACC 2 are bridged.  When you applied your external 12V 
> supply,
> it probably tried to push current into the IC-746Pro, and blew the radio's
> internal fuse. (PW1 User Manual, p. 4, 7 - 9.) In addition, the SEND 2 
> input
> (RCA jack and ACC2 pin 3) is switched through to the PW1's keying circuit
> only if the [EXCITER] switch is set to 1&2.
>
> The TS-940S ALC input should interface correctly with the PW1. Of course,
> the TS-940S will not be able to bandswitch the PW1, unless you place a 
> band
> data/CI-V converter such as the MicroHam unit between the 940 and the PW1.
>
> I hope this is helpful.
>
> Cheers for now, 73,
> Adam VA7OJ/AB4OJ
>
>
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] 
> On
> Behalf Of Tony Visco
> Sent: 04 December 2005 18:20
> To: icom at mailman.qth.net
> Subject: [ICOM] Re: Icom PW-1
>
> Fellow Hams,
>
> I am the new owner of a PW-1 amplifier that has a few challenges in trying
> to figure out.  I have been successful in getting my Icom 746 pro married 
> to
> the PW-1 but have not been successful with my Kenwood TS-940S/AT.  The
> Kenwood has a 7 pin connector where pin 6 is the ALC and Pin 4 is the 
> relay.
> I connected with RCA jacks for the PW-1 at the respective pin connections
> and when attached received no response.
> The PW-1 manual also indicated that 13.8v needs to be added to the acc 2
> plug in order for the Kenwood to activate the antenna system of the PW-1.
> Well Well - the Kenwood has no 13.8v output so I used a 12V supply that is
> tied into the Kenwood when turned on.  Surprise - when activated the it 
> blew
> the fuse in the Icom 746 Pro. and of course shut down everything.
> So what is the correct procedure to connect a second non-icom rig like 
> mine
> without further troubles.
> I certainly don't want to damage this expensive toy.
> Another question - can both rigs be on at the same time?  Personally I 
> feel
> the PW-1 manual is poorly written at best.  I would like to have a little
> more detail than what they have provided.
>
> Anyway - any assistance would be greatly appreciated.
>
> Tony K 3 I P T
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