[Icom] Sick 761

Sat, 19 Apr 2003 01:43:45 -0600

Hi,
Is the symptom same on any and all bands?
Happy Easter,
Tony, VE6CGX

wjdiamond wrote:

>Hi Folks,
>
>Well, I have my new 756 PRO II for the shop now but I keep wondering about
>the 761.  What am I missing on it?
>
>I spent an hour on the phone with Icom Tech support today and based on the
>voltage readings, they said that is should be working but it is not.
>
>For those of you that are familiar with the 761, I am finding something
>really strange. If I touch a metal screwdriver or test lead to either side
>of Diode D 24,on the RF board, the radio will put out 135 watts to the bird
>and dummy.
>
>All voltages at the diodes are within .2 volts of what the manual and Icom
>says. When looking at the output of J8 with a scope loaded with 50 ohms,
>the output is about .2 volts RMS. Icom says that it should be 2 V RMS.  If
>I use the test lead it goes to 2.2 V RMS.
>
>I have replaced all the diodes and caps  and transistors in the Icom tech
>info sheets and it still puts out about 4 watts.
>
>I am sure it is in the RF board and so is Icom. Short of replacing the RF
>board, neither Icom or I know what else to do.
>
>I am sitting here looking at it now and it is just too nice to use as a
>parts rig.
>
>Does anyone have any suggestions?
>
>Thanks
>
>
>        William J. Diamond (Bill)
>        Rogers, Arkansas USA
>        [email protected]
>
>        Ham Radio Operator WR�T
>      Flying The Flag Long Before
>            It Was Popular
>
> Please Visit My Icom Radio Page At
>
> http://pages.sbcglobal.net/wjdiamond/index.html
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>  
>