[Yaesu] FT-757GX with issues

IK2WQI smtp01 at gmx.net
Wed May 19 10:21:57 EDT 2004


Rob,
what's the Ser# of the TRX?
Knowing this I can select the right service manual and, eventually, scan it to 
a pdf file for you.
What did you use as load while measuring the output power?
What modulation mode did you select for the measures?
On what freq did you test the FM reception?
Maybe I can help you but I don't know if this will be of interest for the 
list. So please, direct e-mail contact for the following steps will be preferred.

vy 73s de IK2WQI - Andreas Troschka - JN45OL



Rob Gallagher wrote:
> I have acquired a FT-757GX and it has a couple of problems.  First off, I do
> not have the service manual so if anyone has a copy please let me know.
> 
> The output is not consistance from band to band.  Ranges from about 40W on
> 160m to 100+W on 15m and 17m.  10m is also low.
> So it appears the PA is working.  There does not appear to be a band to band
> adjustment so this is where the service manual is needed.
> 
> The other issue is that there is no audio out on FM mode.  The reciever is
> in fact working as shown by the s-meter but no audio.  Audio is good on all
> other modes.
> 
> Any insight to where to look is greatly appreciated.
> 
> TIA,
> 
> Rob - W3RG
> 
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