[Elecraft] K2 PLL Reference Osc. Range Test failed

Hi all, Just finished part II of the RF board assembly. (If it makes any difference, this is a ~6-year old never opened kit that I'm assembling, ser #5441, with the thermistor board mod and the PLL stability mod on the bottom of the board). PLL reference OSC stable at 12084.34Khz when in CAL

Re: [Elecraft] K2 PLL Reference Osc. Range Test failed

Gil, Your troubleshooting should start in the middle. Monitor the voltage at RF board U5 pin 7 while in the CAL FCTR menu. You should see 4 volts there when you tap BAND+ and zero volts when you tap BAND-. If that does not happen, your problem will be found bact toward the microprocessor,

Re: [Elecraft] K2 PLL Reference Osc. Range Test failed

...@embarqmail.com] Sent: Thursday, June 17, 2010 9:07 AM To: Gil Bishop Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 PLL Reference Osc. Range Test failed Gil, Your troubleshooting should start in the middle. Monitor the voltage at RF board U5 pin 7 while in the CAL FCTR menu. You should see 4 volts

Re: [Elecraft] K2 PLL Reference Osc. Range Test failed

Ab1jv -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Thursday, June 17, 2010 9:07 AM To: Gil Bishop Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 PLL Reference Osc. Range Test failed Gil, Your troubleshooting should start in the middle