[ICOM] 756 ProII low power

[Paul Ferguson]

Thanks for the suggestions for my low power problem with my ICOM 756ProII.

CPU Reset --
I tried the CPU Reset to factory defaults. Power output still shows loss of 
power output as frequency increases (only 50 watts at 24 mHz).

Power Supply connections --
I checked the DC power cables at their connection to the power supply. They are 
very tight. I put a VOM on the cable's lugs just beyond where they are clamped 
under the power supply lug nuts. Voltage is 13.72 volts without key down. Key 
down voltage is 13.70 volts. Voltage does not change with band. I cannot easily 
measure the voltage at the connector into the transceiver when it is connected. 
I doubt it is a problem there. I disconnected and reconnected the power supply 
connector to the transceiver to make sure it was seated.

Any other ideas as to what is causing the low power output on higher 
frequencies?

73,
Paul
K5ESW

> >From my ICOM 756 ProII, I noticed I was only getting about 50 watts out on 24 
> mHz. I attached a 50 ohm dummy load and tested output on all bands.
> 
> 3.5-10 mhz -- 110 watts  
> 14 mHz -- 90 watts
> 18 mHz -- 80 watts
> 21 mHz -- 60 watts
> 24-50 mHz -- 50 watts
> 
> I was using the internal PO meter, but this meter seems close to my external
> meter.
> 
> Power supply delivers 14.8 volts and remains constant across bands. Power 
> supply current decreases by a couple of amps as power goes down across bands.
> 
> Any ideas what might be causing the low output?
> 
> Paul
> K5ESW