Hi Jim;
First, do NOT try loading FW, don't do a Parameter-Reset (EE-INIT) when it is in this state.

1. Check the right side of the radio, it should be warm not hot.
If hot, then the 5 or 8 volt regulator is working too hard, either a short or itself is bad.

2. More likely, C102 on the FP (Front Panel) is shorting the 5Volts for the Contrast.
One end of C102 should have close to 5V.
You can reach this by just taking the top cover off!
It is on the rear side of the FP board at the top, directly behind the top left corner of the LCD. It is our part# E530223.   10 uF,10V,20%,CERM,0805,SMD. Panasonic ECJ-2FF1A106Z.  Digikey PCC2233TR-ND.
Keith WE6R Elecraft K3/K4 Tech.



______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Reply via email to