Chassis Low-Noise Fan Installation Procedure - Bose ControlSpace ESP-88C Service Manual

ESP-88 Chassis Low-Noise Fan Installation Procedure
Note: Some installations of the ESP-88 chassis require a lower noise fan than was originally
supplied with these units. The procedure below details installation of this new, low noise fan.
Units built after 5/7/2010 come standard with this fan.
Note: The new fan is thicker than the standard fan, requiring the Integrated Power Designs (IPD)
power supply to be mounted on its side to provide adequate clearance. This low-noise fan
cannot be used on ESP-88C or ESP-00 chassis built before 5/7/2010.
Perform the steps below:
1. Disconnect the AC mains cable from the
unit.
2. Remove the chassis top cover.
3. Remove the four screws that secure the
power supply to the chassis.
4. Place the power supply on its side, with
the bottom of the supply facing toward the
fan.
Using two of the screws removed in step 4,
secure the power supply to the chassis
using the existing threaded holes in the side
of the power supply. See photo at right.
5. Disconnect the fan wiring harness from
the motherboard.
6. Remove the four screws that secure the
fan to the chassis and lift it out.
7. Install the four rubber grommets through
the chassis side wall as shown at right.
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