Toa W-912A Service Manual - Manual (Page 9)

9
7. INSTALLATION AND CONNECTION
Installing this amplifier requires the optional back box, which is Model BX-9F for flush mounting in any 4 inch
wall and Model BX-9S for surface mounting.
Fix the back box first before installing the amplifier.
7.1. Installation Procedures
Step 1. Attach the supplied hinges to the back box using the 6 supplied M3 x 6 machine screws.
Step 2. Fix the amplifier to the back box by inserting the amplifier bolts into the hinges as illustrated.
Step 3. Connect the power cable.
Be sure to make proper cable connections according to color cording of the power cable.
After connection completion, wrap insulation tape around cable joints and put them in a junction box.
Step 4. Attach the junction box to the back box using the supplied screws as shown below.
The BX-9F differs from the BX-9S in the way to attach the junction box to the back box.
From indoor wiring
Junction Box
BLACK
GREEN/YELLOW
GREEN
BLUE
BROWN
WHITE
Tapping screw 3 x 8
(accessory) Flange nut for M3
(accessory)
Machine screw M3 x 10
(accessory)
[BX-9F] [BX-9S]
INPUT 1
POWER ON 250V 3A 250V 6A OFF
OFF MAX
INPUT 2 INPUT 3
AC FUSE
OFF ON LOW PASS OFF ON HIGH PASS OUT 63 125 250 500 1k 2k 4k 8k 16k
63 125 250 500 1k 2k 4k 8k 16k
IN EQUALIZER
OUTPUT FUSE COMPRESSOR
INPUT 4 INPUT 5 INPUT 6 MASTER
12 6 0 6 12
12 6 0 6 12
Amplifier
(main chassis)
Back Box
BX-9F or BX-9S
Hinge (accessory)
Machine screw M3 x 6
(accessory)