9 May
2002
9 May
'02
1:05 p.m.
The main controller is soldered onto the board. I'm not going to take a chance ruining it to make a copy.
I can understand that.
I will remove the board and trace down what actual chip it is. The crystal does not appear to go to the same pins as a 8048.
I'm confident it is a Zilog controller. I cann't find a datasheet on the 8614 but a replacement/upgrade http://www.zilog.com/docs/pc/z86e23_ds.pdf That is compatible has a security mode that prevents reading the onboard ROM. Otherwise it is configured to read as a standard 2764 EPROM. Now if that is true of the 8614 & you had a 40 pin dip clip & a ROM download program for your 9100...... Thanks, Kev