Repairing a Dead Idiom Press LogiKey K-3

[W9GB]

Question moved to proper eHam.net category.

My LogiKey K-3 has died.  I am stuck.
Does anyone have a K-3 or K-5 that they would like to sell? Any help?
Thanks
Dick, K6KSG

Dick -

WHAT is wrong with your Logi-Key K-3 ?
Schematic is on last page (page 26) of the manual.
http://www.idiompress.com/K3_Manual_Tutorial.pdf

There are ONLY 2 integrated circuits in this K-3 keyer.  SIMPLE Design to fix.
Freescale 68HC705C8* and 24C16
http://cache.freescale.com/files/microcontrollers/doc/data_sheet/MC68HC705C8A.pdf?pspll=1

Transistors: 2N2222A (3), MPSA92

Voltage Regulator, 7805, 1A type device (7805)
This device may have a heat sink, due to current draw and voltage drop.

In the newest K-5 (2004 design), they used the surface mount: NJM78L05UA
http://www.mouser.com/ds/2/294/NJM78L00E1-196913.pdf
===
A transient on your +12 VDC input can damage the +5 VDC regulator.
I would FIRST check with a DVM that you have +5 VDC after the regulator.

[K1DA]

Idiom is a good company...send it back.  There are IN California. 

[W8VVE]

I have several Idiom keyers that I would part with.  If you havn't gotten your
fixed or found another one...send me an email and I'll tell you what I have...
73 for now...Sam W8VVE   nwsam@ntelos.net