Atari 1040STE, Field Service Manual

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4.1.5 Removal of Shield from Printed Circuit Board
1. Straighten twist tabs (usually four).
2. Remove copper tape (if present).
3. Lift upper shield straight up.
Note. Now that the major components are exposed, this is a convenient
configuration for troubleshooting. The keyboard and disk drive may be re-
connected and placed off to the side if those components are needed.
4. Lift printed circuit assembly away from bottom shield. It may be necessary to
pull the
twist tabs away from the board slightly.
4.2 STE RE–ASSEMBLY
1. Place insulation panel on Bottom Shield.
2. Place Main Board on top of Bottom Shield over insulator panel.
3. Plug in power supply connector and position power supply with tabs in slots.
4. Align tabs on bottom shield with slots on top shield and fit top shield over main
assembly. Twist the tabs to lock in place.
5. Place assembly in lower plastic case.
6. Fasten the power supply to the bottom case at both front corners with two
screws. This can be done with the power supply shield in place, using a
magnetized screwdriver to hold the screw, or by by removing the shield.
7. If power supply shield was removed from main shield, position it over the
power supply. Front tabs slide under slots. Twist rear tabs and replace the
screw. Replace three screws holding back panel EMR shield to the power
supply shield.
8. Plug disk drive power and ribbon cables into drive (cables go under shield),
and position drive over standoffs.
9. Replace four screws at the front edge of the main assembly.
10. Connect keyboard harness to main board through the opening in the upper
shield. and place keyboard on the supporting ribs of the bottom case.
11. Place the top cover over the assembly.
12. Turn over the assembly and replace the nine screws. The three longer screws
go in the round holes to secure the disk drive.
Warning: It is strongly recommended that the computer be retested once in
plastic to make sure that the reassembly was done correctly and there are no
shorts to the shield.