JBL A6000GTi, Service Manual, Page: 26 / 62

137159-1 Rev. 1 A6000GTi Service Manual

2003 Crown Audio, Inc.
Maintenance 4-7
4.3.5. Power Supply Assembly Removal
1. Remove power Connection (see Section 4.3.2 for Power Supply Discharge).
2. Using a T-20 screwdriver, remove the four large Torx-head screws from the bottom of
the amplifier.
3. Remove one round standoff (used for the display board) using pliers.
4. Using a T-08 screwdriver, remove one small Torx-head screw from rectifier.
5. Using a T-20 screwdriver, remove the 22 Torx-head screws holding down the PWA.
6. Remove power supply assembly.
NOTE: If power supply is difficult to remove, double check to confirm that ALL screws
have been removed.
4.3.6. BCA Assembly Removal
1. Using a T-15 screwdriver, remove the 12 Torx-head screws from the bottom of the
amplifier holding the plastic coil holder to the chassis.
2. Remove one round standoff from Main PWA (see Figure 4.8).
3. Using a T-15 screwdriver, remove the 6 Torx-head screws holding the P
WA’s from the
top side.
4. Remove the BCA assembly from the chassis.
Figure 4.8 BCA Assembly
Coil PWA
Main PWA
Gate Drive
PWA
Front End
PWA
Power
Cable
Output Filter
PWA
Input PWA
connector
Round
Stand-off
Current
Sense
Cable