Amplifier Module Disassembly & Repair Instructions; Back Cover - QSC K.2 Series Service Manual

6. Amplifier module disassembly &
repair instructions
CAUTION: Use proper anti-static procedures when working on the amplifier. Use an anti-static work surface and
wear a grounded wrist strap.
WARNING: RISK OF ELECTRICAL SHOCK
High Voltage is present in the main power supply. Proceed with caution.

6.1 Back cover

Removal
5. Disconnect the AC power cord from the amplifier module to reduce the risk of electrical shock.
6. Remove the 3 plastite screws from the front of the amplifier module as shown in Figure 6.1.1a.
7. Remove the 2 plastite screws from the side and 2 machine screws from the rear as shown in Figure 6.1.1b.
8. Remove the metal bracket and pull away the plastic back cover Figure 6.1.1c.
Figure 6.1.1 - Three primary steps involved with removing or installing the back cover from the amplifier module chassis.
Installation
1. Replace and trim excess from any zip ties that were cut or removed during a previous disassembly.
2. Carefully align the plastic back cover onto the amplifier chassis assembly (Figure 6.1.1c).
3. Place the metal bracket in its original location and fasten 1 silver machine screws to secure the bracket in place.
4. Fasten the 1 remaining machine screw to secure the top of the back cover to the amplifier module assembly.
5. Fasten the 2 plastite screws to secure the side of the chassis to the back cover (Figure 6.1.1b).
6. Fasten the 3 plastite screws to secure the front of the chassis to the back cover (Figure 6.1.1a).
Important note: The back cover must be carefully aligned when fastening the front and side plastite screws. Try to avoid
destroying the previously cut threads in the plastic back cover by slowly rotating the plastite screws back into the
threads. If the thread is marred or stripped inside, the plastic back cover could vibrate when in use.
TD-001517-01
K.2 Series Service Manual
23