Installation guide

Assembly Replacement
A3 Front Panel Auxilary Board
2-14
A3 Front Panel Auxilary Board
Tools Required
• T-10 driver
WARNING High voltage is present at the A4 Inverter output (CN2-1). Also, be careful of the fan
blades on B1, B2, and B3. Keep hands and fingers away from the fan blades to avoid
injury!
Removal Procedure
Refer to Figure 2-7 for this procedure.
1. Disconnect the power cord.
2. Remove the front panel. Refer to “Front Panel” on page 2-6.
3. If you have an A5 10 GB Hard Drive (Option 005), it may be removed to aid the removal and replacement
of W33. Refer to “A5 10 GB Hard Drive (Option 005)” on page 2-18.
4. Disconnect the W1 cable of the A2DS1 Display Backlight (3) from the A4 Inverter.
5. Disconnect the W33 ribbon cable (4) from the A3 Front Panel Auxilary Board by lifting the white tabs on
the connector.
6. Using the T-10 driver, remove the screw (5) from the A3 Front Panel Auxilary Board (6) and slide the
board to remove it from the key slots.
7. Remove the A3 Front Panel Auxilary Board.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Torque all T-10 screws to 9 in-lbs.
3. Perform the post-repair adjustments and performance tests that pertain to this removal procedure.