[ICOM] 765/ Q14 & diode replacement

[William Diamond]

>From the Icom Website under troubleshooting

Symptom: No TX output in all modes. Problem is traced to no output at J8
connector on the RF unit.
Probable Cause: Bad Q14 transistor amplifier on RF unit.
Cure: Replace faulty Q14 transistor (2SC2053).
Remarks: There may be other problems on the RF unit. Check the DC voltages
at D47 diode.


When I went thru this, Icom Tech Support told me to replace all for of the
D47 type diodes.  The guy you got was probably not familiar with the older
radios..




           WILLIAM J. DIAMOND
          ROGERS, ARKANSAS USA

        HAM RADIO OPERATOR WRØT
 VISIT MY NEW RADIO ROOM REVISED 7-04, AT
           www.wjdiamond.com

       DIGITAL PHOTOGRAPHY SITE IS AT
http://pages.sbcglobal.net/wjdiamond/index.html


-----Original Message-----
From: icom-bounces at mailman.qth.net
[mailto:icom-bounces at mailman.qth.net]On Behalf Of NABEREZNY JOHN
Sent: Tuesday, August 31, 2004 12:10 PM
To: icom refector
Subject: [ICOM] 765/ Q14 & diode replacement


Hi Folks,
    Someone on the reflector mentioned that when the Driver Q14 goes they
should replace 4 diodes associated with the driver. I just got off the phone
with Icom and they knew nothing of it, Soooo is there anyone out there that
could help with the problem ?
   Thanks, John WE2F
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