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This Ends the Procedure.
Models 840/SB3 Processor Tower (With Dual Line Cords) – Concurrent
Maintenance Adapter Card (A02)
1. Power Down the system this is no longer a Concurrent Maintenance Operation.
2. Remove the 2 screws holding the Concurrent Maintenance Adapter Card in
3. Install the new Concurrent Maintenance Adapter Card and tighten the 2
4. Power On the system.
This Ends the Procedure.
Models 840/SB3 Processor Tower – AMD (B01, B02, B03, and B04)
1. Do not power off the system.
2. Open the front or rear cover depending on the location of the AMD that you
Refer to "Assembly 6: Models 840 and SB3 Processor Tower– Final Assembly,
Front" on page 828 or "Assembly 7: Models 840 and SB3 Processor Tower – Final
Assembly, Rear" on page 832 and perform the following steps.
3. Remove the EMC access plate.
4. On the control panel:
5. Remove the AMD assembly.
6. Install the AMD by reversing the removal procedure.
7. After exchanging an item, go to "Verifying the Repair" on page 920.
b. Remove the 2 screws holding the Concurrent Maintenance Adapter Card in
place.
c. Install the new Concurrent Maintenance Adapter Card and tighten the 2
screws.
d. Install the new AC Box and tighten the 4 screws.
e. Power on the system.
place.
screws.
are replacing (see "Models 840/SB3 – Covers" on page 690).
a. Select function 7 on the system control panel. Press Enter. (07** will be
displayed)
b. Use the arrow keys to increment/decrement to sub-function A2 (07A2 will
be displayed). Press Enter (07A2 00 will be displayed).
c. Use the arrow keys to increment/decrement to the frame address of the
processor tower, usually '02' (0702 will be displayed). Press Enter (0702 00
will be displayed).
d. Use the arrow keys to increment/decrement to select 07Fx where x is the
AMD to be powered off (0=AMD B01, 1=AMD B02, 2=AMD B03, 3=AMD
B04). Press Enter (07Fx 00 will be displayed). The green LED on the AMD
will turn off.
Note: When you install the new AMD, some force is required to insert the
AMD past the spring-loaded flap.
The new AMD will automatically power on when it is installed.
Remove and Replace Procedures
Chapter 4. Removal and Installation Procedures
677
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