Additional Technical Information; Keyboard Identification - HP Integral Personal Computer Service Manual

1 0.1 Introduction
Chapter 10
R'eference
This chapter provides some additional information that you will find helpful in troubleshooting and
repairing the Integral PC.
10.2 Additional Technical Information
You
may
want to refer to the following manuals and
Ie
data sheets for additional technical
information:
• MC68000UM (AD3) User's Manual by Motorola.
• Micro-Floppy Disc Theory of Operations Manual by Sony.
• Miao-Floppy
Disc Service
Manual by Sony.
• FOC 2797 Floppy Disc Controller Data Sheet by Western Digital.
• HP 2225 Series ThinkJet Printer Service Manual.
Note: The printer in the Integral PC
is a modified version of the HP 2225B ThinkJet Printer.
10.3 Keyboard Identification
The keyboard identification codes for the localized keyboards are listed in table 10-1. The codes are
contained in the keyboard as a row of diodes built into the key matrix. The code is decoded by the
keyb0ard controller.