[ICOM] On/Off Intermittent

[Larry Young]

Yes Mike, I meanTamiya. I suppose my Japanese memory is a little bad. Sorry I do not know the size, but Mel NC4L in his Sept 2010 QST article says you can find them at any hobby store. I do know you can get them from Icom parts as PN 6510003790.
LARRT k4lxv
 

________________________________
 From: Mike <k4gmh at arrl.net>
To: ICOM Reflector <icom at mailman.qth.net> 
Sent: Tuesday, January 14, 2014 6:12 PM
Subject: Re: [ICOM] On/Off Intermittent
  

Thanks Larry for the info.  Did you mean "Tamiya" connector rather than
"Tamanya"?  Google only turned up "Tamiya" when Tamanya connector was
searched.  Number of Tamiya connectors referencing Molex style are on
Ebay.

Do you happen to know what size of pins are used in the Icom OPC 025A power
connector assembly?

  73,
  Mike, K4GMH


On Mon, Jan 13, 2014 at 11:42 PM, Larry Young <k4lxv at bellsouth.net> wrote:

> MIke: The power connector pins ARE NOT MOLEX. they look like molex, but
> they are from a compamy called "Tamanya" and they have a higher current
> rating. Most of the after market DC cords and connectors are not Tamaya
> pins, thus  the problem. I  remember reading an article that said the
> Tamaya pins could be found in some hobby shops.
>
> Good luck,
> Larry K4LXV
>
>
>
>
> ________________________________
>  From: Mike <k4gmh at arrl.net>
> To: ICOM Reflector <icom at mailman.qth.net>
> Sent: Monday, January 13, 2014 7:54 PM
> Subject: [ICOM] On/Off Intermittent
>
>
> Hello,
>
> My IC746 started having an intermittent on/off problem.   The problem shows
> up after the 746 has been operating for several hours in a RTTY or CW
> contest.  (May have same issue in SSB contest, but haven't recently been in
> a SSB contest.)  The 746 shuts down for a second when transmitting as
> between characters in CW.  When the interruption occurs in RTTY
> transmission, transmission has to be manually stopped to let the radio
> return to operation.  Operation will resume for a random length of time
> before a repeat shut down.  The time between shut downs decreases the
> longer the radio is operated (transmit).  Has anyone had a similar problem?
>
> What I have done so far to try to fix the 746 is to substituted another
> power supply, but have same intermittent on/off problem.  The power
> receptacle was removed and reinstalled, yet the on/off problem remained.
>
> This afternoon the power receptacle was inspected and noticed a discoloring
> on the outside of the power receptacle's plastic.   The receptacle's female
> pins next to the discolored plastic seemed to have lost some of there
> spring.
>
> Would like to replace the receptacle's female pins to make sure the
> receptacle's pins are not the problem, .  However, not sure what size.
> Looks like the 0.093" pins (Molex).  Is that correct?
>
> Also, some time ago, the type of receptacle was identified on the Icom
> Reflector.  Unfortunately, couldn't find it when I searched.  Anyone
> remember what the "Molex?" part number is?
>
>   73,
>   Mike, K4GMH
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