IBM 339 User manual

IBM Personal Computer AT ®
Model 339
Supplement
forthe
Hardware Maintenance Service
March 18, 1986
Document Number 6280139
SS34-0001-00
©Copyright International Business Machines Corporation 1986

March 18, 1986
ii

Instructions
This supplement package contains both replacement pages and
supplemental pages. As you insert replacement pages, compare
the date
of each page to the page you are replacing. Keep the
pages with the latest date.
If the page in your manual is not
dated, replace it.
• Turn to the A
Tl section of your manual. Replace the
following sections with the sections from this package.
Jumpers and Switch Settings
Parts Catalog
Note:
Do not replace the "Parts Supplement" or
"Switch Supplement" in your manual.
• Turn to the DIAGNOSTIC MAPs section of your manual.
• Replace the following MAPs with the MAPs from this
package.
MAP 0100: System Board (AT)
MAP 0200: Memory (AT)
MAP 0300: Keyboard (AT)
Trademark of IBM
March 18, 1986 iii

March 18, 1986
iv
...... "'-----