@TITLEPG = Atari MegaSTe■ Hard disk Installation Manual
@A HEAD = Kit Contents
Your Atari MegaSTe 1.44 Megabyte Floppy Disk kit P/N CA400677-001 should contain
the following items:
@BULLET = AJAX Disk Controller Chip Part Number: C302096-001
@BULLET = PAL Chip UA2 Part Number: C301901-002
@BULLET = 2MB 3<$E1/2>" Floppy Disk Drive Part Number: C301371-001
@BULLET = Installation Manual Part Number:
If any of these components are missing from your kit please contact the outlet from
which the kit was ordered.
@A HEAD = Tools Required:
@BULLET = Phillips screwdriver.
@BULLET = Flat blade (slotted) screwdriver
@A HEAD = Installation
The following steps should be completed in the following order to install the 1.44
Megabyte floppy drive in your Atari MegaSTe computer. Carefully read each step all the
way through before taking any action required by that step.
@WARNING = WARNING
This installation should be performed in a static free environment. Static can cause
damage to the components in this kit. Failure to perform each step completely or
skipping steps could result in damage to the floppy drive, electrical components, or your
computer.
@NUMBER LIST = 1. If a Hard Disk is installed in the computer, remove it.
@NUMBER LIST = 2. Remove the top cover from the computer.
@NUMBER LIST = 3. Locate and remove the Floppy Disk Controller Chip at location
U405. Replace it with the AJAX chip part number C302096-001.
@NUMBER LIST = 4. Locate and remove the PAL chip at location UA2.
@NUMBER LIST = 5. If the main PCB is lower than a REV B, remove the main PCB and
add a jumper wire in the solder side of the board from U7 pin 32 to UA2 pin 19. Replace
the main PCB.
@NUMBER LIST = 6. Replace the PAL that was in socket UA2 with the PAL chip part
number C301901-002 included in the upgrade kit.
@NUMBER LIST = 7. If the TOS ROMs in the computer are lower than REV 2.05, replace
them with REV 2.05 TOS ROMs or higher.
@NUMBER LIST = 8. Locate switch S701 on the main PCB and turn segment 7 on.
@NUMBER LIST = 9. Set the jumpers on the rear of the 1.44 megabyte  floppy drive to
1-2, 5-13, and 14-15. See Figure 1.
@NUMBER LIST 2 = 10. Remove the old 720KB floppy drive from the top cover and
replace it with the 1.44 megabyte floppy drive part number C301371-001.
@NUMBER LIST 2 = 11. Plug the floppy drive interface cable into J2 of the floppy drive.
@NOTE = NOTE: Pin 1 is in the opposite position of pin 1 on the 720KB floppy drive.
@NUMBER LIST 2 = 12. Plug the power cable into J1 on the 1.44 megabyte floppy drive.
@NUMBER LIST 2 = 13. Replace the top cover.
@NUMBER LIST 2 = 14. If you removed a Hard Disk from the computer, replace it
@NUMBER LIST 2 = .