1. Fan replacement kit
1. FAN REPLACEMENT KIT
Overview
•
•
•
•
Remove the front panel assembly
•
Remove the power supply assembly
•
•
install the power supply assembly
•
Install the front panel assembly
•
W
ARNING
:
This manual is only intended for quali
fi
ed service personnel.
1.1
Kit content
What’s in the box?
This kit contains the following:
•
1 fan subassembly
•
4 Keps nuts, 6–32, steel, clear zinc
fi
nish
•
4 screws, 6–32 x 1/2”
fl
at-head Phillips, 100 degree, steel, clear zinc
Purpose of the spare part kit
The fan subassembly in the fan replacement kit is designed to replace the fan of the AP20 and AP24 audio processor. This document
describes in detail the replacement procedures.
1.2
Installation process overview
About this chapter
This chapter gives an overview of the different stages in the installation process. The stages displayed in bold are described in more
detail in this manual. More information about the other stages can be found in the service manual of the audio processor.
Safety warnings
W
ARNING
:
Servicing must be done by authorized and quali
fi
ed technical personnel only, which are thor-
oughly familiar with the product and all of the proper safety checks of this product.
C
AUTION
:
The AP20 and AP24 audio processors contain parts that are static sensitive. Use caution when
handling to avoid damage and avoid touching circuit boards.
When removing or installing internal cables, keeping one hand on the chassis will help to ground you with
respect to internal circuitry.
It is a good idea to stand on a linoleum or cement
fl
oor (not carpet) when handling the processor.
Installation from A to Z
1. Find a suitable workspace to perform the procedure. Antistatic foam or an antistatic mat is an ideal work surface.
2. Turn off the processor’s rear panel power switch and unplug the power cord.
3. Remove the top cover. See "Remove the top cover", page 2
R59770891 AP20 & AP24 FAN REPLACEMENT KIT 28/09/2015
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