[ICOM] 756 Pro No power out

[Tim Moes]

Hi Jim,

 The common things to lose in a IC-756 Pro for low TX are IC-601 in the RF 
unit or possibly the driver transistors in the Final unit. Was the unit left 
on the ant? You may have received some static build up on the Ant and this 
can cause damage to diodes in RF and tuner units. This also leads to IC601 
failing. Does the receiver seem to have more noise than usual?

This may give you a start....

Tim   wd0fkc

----- Original Message ----- 
From: "jim fox" <w0hfg at hotmail.com>
To: <icom at mailman.qth.net>
Sent: Thursday, February 09, 2006 9:19 PM
Subject: Re: [ICOM] 756 Pro No power out


> Yes, The power out readings were taken with the amp disconnected (control 
> line) Short coax from ant 1 to bird and 4 ft coax to dummy load.. Amp is 
> the IC 4-KL so nothing attached to the ALC or Send jacks on back of the 
> 756 Pro..  Thanks,   Jim
>
>
>>From: "Lawrence Young" <younlr at mybluelight.com>
>>Reply-To: ICOM Reflector <icom at mailman.qth.net>
>>To: icom at mailman.qth.net
>>Subject: Re: [ICOM] 756 Pro No power out
>>Date: Fri, 10 Feb 2006 02:44:30 GMT
>>
>>Jim: did you try the rig alone into a dummy load with no ALC connection to 
>>the amplifier just in case the power was being reduced by a fault in the 
>>ALC voltage being input from the amplifier? Good luck, Larry K4LXV
>>----
>>Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
>>Icom Users Net: Sundays, 1700Z, 14.316 MHz
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>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
>
>