Hi Corey, Check the pinout of your keyboard encoder with this site: http://www.xs4all.nl/~ganswijk/chipdir/giicm/8048.txt I bet the Xtal is on pins 1 & 2, plus the +5 and Gnd will also be correct....also that the RESET pin on the plug (center pin of the five) goes directly to pin 4 on the IC...if not then check the 8051... http://www.xs4all.nl/~ganswijk/chipdir/giicm/8051.txt Almost every keyboard that I have seen since the old Apple II's has used a 8048, 8051, or variation of same. John :-#)# At 11:41 PM 08/05/2002 -0400, Corey Stup wrote:
I opened my Fluke Programmer's keyboard for the 9100A this evening. I'll have you guys know I just voided my warranty doing so! (had to break a seal...)
Anyway, it has a few interesting things. The board is denoted with a patent: 4,420,744. The main controller has the following markings on it: Z (appears to be the Zilog logo) SR0131 2-8756-819 8614