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III. Powered Subwoofer
FREQ. ADJ.
FREQ. ADJ.
10
6 6
7 7
POWER
POWER
50Hz~
50Hz~
8 8
1. Mechanical arrangement
a) disassembly:
- remove 12 screws securing the amplifier board to the cabinet
- remove the amplifier board disconnecting driver leads and LED cable
Note:
Take care not to damage board gasket.
b) driver replacement
- carefully remove driver lead connectors off the driver terminals
- undo 4 driver securing screws
VOLUME
VOLUME
Serial No.
Serial No.
INPUT
INPUT
low level
low level
INPUT - from amplifier
INPUT - from amplifier
230V
230V
FUSE
FUSE
T 1AL 250V
T 1AL 250V
OUTPUT - to speakers
OUTPUT - to speakers
Diagram 1. Amplifier board
1 1
2 2
9
1 1
Bandwidth adjustment
Bandwidth adjustment
2 2
Sensitivity adjustment
Sensitivity adjustment
3 3
CHINCH input
CHINCH input
3 3
4 4
Signal input terminal (left-right)
Signal input terminal (left-right)
5 5
Speaker terminal
Speaker terminal
4 4
6 6
Fuse holder
Fuse holder
7 7
Mains switch
Mains switch
8 8
Mains lead
Mains lead
5 5
9 9
PCB securing screws
PCB securing screws
10
10
12 off amplifier board securing screws
12 off amplifier board securing screws
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