[ICOM] IC-2KL help needed

[Mike Olbrisch]

Just a curious question, what does the PRO meter position say?  How about the
IC?  Is the 40 VDC really holding, or just not falling off because of the giant
cap in the circuit?  Doesn't sound like a protection problem, but ya never
know.....

There is a relay circuit in the P/S that is supposed to slow the inrush current
when first turned on.  Looks like R-5 and R-6 (30 ohm 20 watt) are the in-rush
resistors.  C-1, R-4 and D-1 look like the delay TC.  I would check around
there.  Might be a great time to replace caps, they DO dry out.  Maybe dirty
relay contacts in the hold circuit?

Let me look here......  Yes - here it is.....

ICOM doesn't have the big DC cap any more.  Try this.

R.S. Electronics.
Sales - Allison.  In Atlanta.
IC-2KL Cap - DCMC643M063CC2B
$52.77  conf LV198748

Hmmm - can't find a phone number.  Well - there is always the web.

The cap is a bit over-rated - so it should last you a long time.  Yes it works
in my 2KL.  Icom had all the others.

Good luck my friend.

Mike - KD9KC.
El Paso, Tx.
DM61rt

Molon labe. [mo-lone lah-veh] Google it...

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> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of CLIFF WALLACE
> Sent: Sunday, April 13, 2008 9:47 PM
> To: icom at mailman.qth.net
> Subject: [ICOM] IC-2KL help needed
> 
> Greetings Listers,
>                   Having a problem with my IC-2KL amp.. It 
> just started to shut down in a idle condition.  When it is 
> first turned on it powers up fine and looks great.  After 
> about 30 seconds a relay clicks in the amp and the primary 
> power shuts down, although I can still see a solid 43 volts 
> on the panel meter.  In about another 30 seconds the relay 
> clicks again and primary is intact with the meter light and 
> band indicator lights working normally.  It repeats this 
> cycle as long as the amp is on.  Needless to say, you cannot 
> get it on the air.  Since it never goes into transmit I feel 
> it is not an ALC issue. The power supply has been checked and 
> is functioning fine.  Any suggestions as to where to start 
> would be greatly appreciated.  Many thanks for your time.
> 
> Regards,
>         Cliff