Don,
Sorry, I seem to have had a 'senior moment'. On resetting its now OK!
Sorry for the bandwidth.
Dunno how it got to 220 but one of those things in life.
I will keep taking the pills!
73 Bob G3PJT
Don Wilhelm wrote:
Bob,
If CAL TPA is actually 220, that is much too high - The K2 microprocessor
thinks the heat sink is at 220 degrees C!!
Set it back to match the room temperature in degrees C when the heat sink is
at the ambient temperature. (i.e. 22 rather than 220).
73,
Don W3FPR
-----Original Message-----
Yesterday I turned on and the fan came on even though the heatsink was
cold and when I tried to TX 'PA hot' came on and the PA was inhibited.
1. CAL tpa is 220 which is about right ~ 22C and Fan menu set nor.
2. On TX - Q3 base is 0.6v - which I think is about right (RC4 going
high of course)
3. On U1 RC7 is 5 and RC6 is low which is the correct output for Fan Hi
- which is what it is doing.
4. Power control less than 10w and the K2 sends OK
5. Firmware PA 1.06
Any ideas?
73 Bob G3PJT
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