Toa PA-3640VB - Manual (Page 8)

133-22-183-10
URL: http://www.toa.jp/
7. SPECIFICATIONS
* 0 dB = 1 V
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Power Source 220 V AC, 50 Hz or 24 V DC
Power Consumption 1,100 VA (at rated output)
Output Power 360 W
Inputs 2 Program input/output (parallel): 0 dB*, 100 kΩ, balanced
2 Priority input/output (parallel):
0 dB*, 100 kΩ, balanced
Output and 100 V/27.8Ω, 50 V/6.9 Ω
Load Impedance
S/N Ratio
Over 80 dB
Distortion Under 2% (at rated output f = 1 kHz)
Indicators Power: Green LED
Priority: Red LED
Frequency Response 40 – 16,000 Hz ±3 dB (at 1/3 rated output)
Finish Panel: Surface-treated steel plate, black, 30% gloss, paint
Dimensions 483 (w) x 177 (h) x 332 (d) mm
Weight 27.8 kg
Rack mounting screw with washer (5 x 12) .......... 4
Fuse 30 A ............................................................. 2 Fuse 5 A ............................................................... 1
• Optional product
Fault detection circuit module: YA-1000A
PA-3640VB
Rear side
Mute level control
6. MUTE LEVEL ADJUSTMENT (For qualified service personnel only)
When the Priority control input is activated, the Priority input mutes the Program input by a preset level, which
can be adjusted with the Mute level control inside the unit.
This work should only be performed by a qualified professional
electrician. If users open the unit case or modify the unit, this may
cause fire or electric shock.
WARNING
Step 1. Unscrew the upper case to remove it.
Step 2. Apply different signals to the Priority input
and Program input.
Step 3. Short the Priority control input terminal.
Step 4. While hearing sound, adjust the mute level
control for an appropriate mute level by
turning it clockwise or counterclockwise with
a standard screw driver.
Step 5. Replace the upper case.
[Adjustment procedure]
This adjustment is made under the condition that the unit's power is on and speakers are connected to the
unit.
For safety, be sure to disconnect the AC power from the unit only before opening and replacing the upper
case (Steps 1 and 5 below). In addition, never touch any component other than the Mute level control.