Ksub Disassembly And Repair Procedures - QSC K8 Service Manual

6. KSub disassembly and repair
procedures
6.1 Bucket of power
Removal
1. Remove the 10 screws along the outer perimeter of the
BOP.
2. Partially remove the amplifier module out of the cabinet as
seen in Figure 6.1.
Note: Occasionally the module will be stuck to the cabinet.
Place a putty or butter knife between the cabinet and edge
of the module to pry the module out.
3. Detach the multi-pin molex connector from the read of the
module.
4. The BOP can now be fully removed.
Installation
1. Inspect the molex connector for loose wires.
2. Connect the molex connector into the module.
3. Carefully insert the BOP and align the holes along the rim
of the BOP to the holes on the cabinet.
4. Fasten the 10 screws that secure the BOP to the cabinet,
beginning with the corner screws.
6.2 Low frequency transducers
Removal
Contrary to the top-box models, the LF transducer can only be
removed through the rear hole (that the BOP sits in). There is
no access to the transducers through the front section of the
cabinet.
1. Follow the removal instructions in "6.1 Bucket of power"
on page 20.
2. Place the cabinet assembly on a padded surface front
grille-side-down so the LF transducer doesn't fall out after
the screws are removed.
3. Remove the 8 screws around the perimeter of the LF
transducer.
Note: This can be an extremely difficult task without the
right equipment. We recommend you use a flexible exten-
sion bit holder that can be adjusted and twisted, similar to a
snake.
20
Figure 6.1 - BOP removal on the KSub.
Figure 6.2 - LF transducer removal can only performed
through the rear of the cabinet
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