[Elecraft] RS-232 communication failure KPA100

2008-02-19 Thread Per Enocson
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then

[Elecraft] RS-232 communication failure KPA100

2008-02-19 Thread Per Enocson
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then

[Elecraft] RS-232 communication failure KPA100

2008-02-19 Thread Per Enocson
My PC to KPA100 communication suddenly failed. Checked the cabling and did some initial tracing from J1 to U4. Seems ok incl. RFC:s. I found deviating voltages on U4 pins: 2 -5,5 3 -10,7 4,5,6 -5,5 7,8 -10,7 with remaining U4 pin readings ok. Then

Re: [Elecraft] RS-232 communication failure KPA100

2008-02-19 Thread David Pratt
In a recent message, Per Enocson [EMAIL PROTECTED] wrote ... My PC to KPA100 communication suddenly failed. Checked the cabling and did It looks very much as though the problem is with your computer, Per. Your message to the Reflector was send no fewer than five times. Hope you manage to