[Elecraft] K2 KIO2 Problem.

[Chuck Gehring]

K2 KIO2 Problem.  

A few days ago we had a power fluctuation in our neighborhood.  The surge
protector and Battery Backup UPS did not help.  The Power surge took out my
computer hard drive, serial interface card and it would appear had some
affect on my KIO2. 

 

The KIO2 still works with my KAT-100 and KPA 100 Change Bands and Tune, but
I cannot make any connection with the computer serial interface card.  I
have run the Serial interface Test several times.  Of course I replaced the
serial card and hard drive, I even switched computers, NO JOY.

 

I have checked all of the voltages on the KIO2 interface.  The voltages on
the J2, Q1, U2 all match the manual.  The diodes (D1, D2 and D3) seem okay
but I don't get an exact match with the manual.  The voltages on the U1 and
J1 don't match the trouble shooting instructions;

 

U1-1    13.6 VDC                                            

U1-2    0 VDC                         

U1-3    0 VDC                         

U1-4    0 VDC                         

U1-5    0VDC                          

U1-6    0VDC                          

U1-7    0VDC                          

U1-8    9VDC  

U1-9    0VDC

U1-10  0VDC  

U1-11  4.9 VDC

U1-12  5 VDC 

U1-13  4.9 VDC

U1-14 0VDC

U1-15 5 VDC

U1-16 5VDC

 

J1-1 0VDC

J1-2 -6 VDC

J1-3 0VDC

J1-4 OVDC

J1-5 0VDC

J1-6 5.5 VDC

J1-7 0VDC

J1-8 14VDC

J1-9 8VDC

 

Comments, suggestions would be appreciated

73 K2CG

Chuck Gehring

 

P.S. I really feel so lucky to have an Elecraft K2.  A friend of mine has a
IC-756PROIII,  He got hit with a voltage spike last month and after several
hundred dollars for replacement boards he still has to send his entire rig
back the service center.  I am very close to talking him in to buying a K2.
At least that way he will have a Back-up rig for his K2 when the Icom gets
back.