Help: Yaesu FT-1500M
 

I have a 1500M and the PLL won't lock. Anyone know of any known issues I
could try for a quick fix?

Thanks,

Ken,

N3GBW

"Ken Knapp" wrote in message
...
I have a 1500M and the PLL won't lock. Anyone know of any known issues I
could try for a quick fix?

Thanks,

Ken,

N3GBW

Have you tried a CPU reset as per the manual? CPU may be in a funny state.
After that I could only suggest checking that the PLL reference is working
(21.25MHz in to Q2008) and that the PLL chip's inputs look 'reasonable' (ie.
data gets shifted in when appropriate). Check also that the PLL Unlock
signal is getting from TP2007 to the CPU.

Cheers.

Ken

Thanks Ken. I did reset but no luck. I'll check for the 21.25 MHz signal.

Ken

"Ken Taylor" wrote in message
...
"Ken Knapp" wrote in message
...
I have a 1500M and the PLL won't lock. Anyone know of any known issues I
could try for a quick fix?

Thanks,

Ken,

N3GBW

Have you tried a CPU reset as per the manual? CPU may be in a funny state.
After that I could only suggest checking that the PLL reference is working
(21.25MHz in to Q2008) and that the PLL chip's inputs look 'reasonable'
(ie. data gets shifted in when appropriate). Check also that the PLL
Unlock signal is getting from TP2007 to the CPU.

Cheers.

Ken