[Icom] 761 Help

Fri, 11 Apr 2003 17:50:41 -0600

Hi,
Sounds like it. Have frequency counter? I use old VTVM
instead of DVM doing alignment and have scope, spectrum analyzer,
freq. counter. Makes thing lot easier.
GL es 73,
Tony, VE6CGX.

wjdiamond wrote:

>Hi Clif and others,
>
>I replaced the 2 caps and reinstalled 3 diodes correctly.  Someone had
>reversed them when they were installed.
>
>I now have fair PO on SB but very little on RTTY, no CW and no AM.
>
>I think that it is just very badly out of alignment now.
>
>I am going to run the full alignment on it now.
>
>73 to all
>
>
>
>        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 New Icom Radio Page
>
> http://pages.sbcglobal.net/wjdiamond/index.html
>
>-----Original Message-----
>From: [email protected] [mailto:[email protected]]On
>Behalf Of Clif
>Sent: Friday, April 11, 2003 2:07 PM
>To: [email protected]
>Subject: Re: [Icom] 761 Help
>
>
>Look closely at C174, C179.
>
>Clif Holland,  KA5IPF
>AVVid
>Authorized Kenwood and Icom Service
>www.avvid.com
>1-800-214-5779
>972-554-6801
>----- Original Message -----
>From: "wjdiamond" <[email protected]>
>To: <[email protected]>
>Sent: Friday, April 11, 2003 12:02 PM
>Subject: RE: [Icom] 761 Help
>
>
>  
>
>>Hi Cliff,
>>
>>Thanks.   From the amount of previous soldering on the RF board in the
>>    
>>
>area
>  
>
>>of the diodes someone has been in there before searching for the problem.
>>
>>At this point, I am about to replace all the associated diodes with the
>>correct ones from Icom as I have no way to tell if the right diodes were
>>even installed by whomever.
>>
>>I suspect that several people have tried to fix this one.
>>
>>73 to all
>>
>>        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 New Icom Radio Page
>>
>> http://pages.sbcglobal.net/wjdiamond/index.html
>>
>>-----Original Message-----
>>From: [email protected] [mailto:[email protected]]On
>>Behalf Of Clif
>>Sent: Friday, April 11, 2003 8:24 AM
>>To: [email protected]
>>Subject: Re: [Icom] 761 Help
>>
>>
>>The schematic is correct, figure out why yours is wrong.
>>
>>Clif Holland,  KA5IPF
>>AVVid
>>Authorized Kenwood and Icom Service
>>www.avvid.com
>>1-800-214-5779
>>972-554-6801
>>----- Original Message -----
>>From: "wjdiamond" <[email protected]>
>>To: "Icom@Mailman. Qth. Net" <[email protected]>
>>Sent: Thursday, April 10, 2003 10:52 PM
>>Subject: [Icom] 761 Help
>>
>>
>>    
>>
>>>Hi Gang,
>>>
>>>Now I am really perplexed.  The reading that I get on each side of
>>>      
>>>
>Diode
>  
>
>>D
>>    
>>
>>>47 are exactly opposite of what they should be.
>>>
>>>According to Icom and the manual the cathode side should read 9.4 RX
>>>      
>>>
>and
>  
>
>>>9.7 TX
>>>
>>>The Anode side should be 8.8 RX and 13.8 TX
>>>
>>>Mine reads the exact opposite I guess the black band is still the
>>>      
>>>
>cathode
>  
>
>>>today as in many years ago. I always considered the Anode side to look
>>>      
>>>
>>like
>>    
>>
>>>an arrow on the schematic.
>>>
>>>This is a weird diode also it is a M 1204 and I cannot find a cross for
>>>      
>>>
>>it
>>    
>>
>>>anywhere.
>>>
>>>What am I missing??
>>>
>>>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 New Icom Radio Page
>>>
>>> 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/
>>>
>>>      
>>>
>>----
>>Your Moderator: Dick Flanagan W6OLD, [email protected]
>>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>>Icom FAQ: http://www.qsl.net/icom/
>>
>>
>>----
>>Your Moderator: Dick Flanagan W6OLD, [email protected]
>>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>>Icom FAQ: http://www.qsl.net/icom/
>>
>>    
>>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/
>
>  
>

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