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Old December 14th 03, 07:30 PM
Andy Bown
 
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Default Icom R71 MW pre-amp enable modifiaction problem

Hi all

Has anyone performed the R71 pre-amp enable mod for frequencies below
1600 Khz, as described in Don Moman's excellent performance manual?

It states in the manual that to enable the pre-amp for MW, it is
necessary to clip diode D23. I did this but instead of enabling the
pre-amp for MW, it seemed to disconnect the S-meter.

Anyone else had this problem? Once I resoldered the diode ends
together, the S-meter worked as normal. Was the board layout changed
for different versions? I don't know when my R71E was manufactured,
but it has the old Icom logo and the PBT control.

Cheers

Andy