60
DISASSEMBLY PROCEDURES
Note: Refer to the figure above for the
following procedures.
1. Top Cover Removal
1.1 Remove the twelve screws (28) that
secure the top cover (31) to the chassis (1).
1.2 Lift up on the back of the top cover and
slide it to the rear until it clears the front
edge of the chassis. Lift off the top cover.
2. LED Display PCB Removal
2.1 Perform procedure 1.
2.2 Remove the one screw (32) that secures
the LED PCB assembly (30) to the front
panel.
2.3 Using needle-nose pliers, compress the
fingers of the four plastic standoffs that
secure the LED PCB assembly to the front
panel. Lift out the PCB.
2.4 Disconnect the ribbon cable from J510 of
the the Main DSP PCB (34).
3. Front Panel Assembly Removal
3.1 Perform procedure 1.
3.2 Remove the six screws (13) that secure
the front panel (23) to the chassis (1).
3.3 Depress the three tabs on one of the
end caps (18) to release it from the front of
the chassis. Lift off the end cap. Repeat this
for the other end cap.
3.4 Lift off the front panel assembly. Once
this is removed you will have access to the
power knob (26) and the LED lenses (25).
4. Fan Removal
4.1 Perform procedure 1.
4.2 Disconnect the 2-wire plug from the
lower PCB assembly of the power amplifier
PCB module assembly (33). You should be
able to unplug this wiring harness by pulling
straight down. There is no need to remove
the power amp PCB assembly.
Summary of Contents for FREESPACE 4400
Page 87: ...87 Circuit Board Layout Diagrams Figure 12 DSP PCB Top Etch Board Layout Diagram ...
Page 88: ...88 Circuit Board Layout Diagrams Figure 13 DSP PCB Bottom Etch Board Layout Diagram ...
Page 90: ...90 Circuit Board Layout Diagrams Figure 18 Amplifier Upper PCB Top Etch Board Layout Diagram ...
