Muting
Rack Mounting
The following muting functions are available from the BG-10.
However, no prior internal wiring arrangements are made for these
functions when unit is supplied from the factory. By removing the
jumper connectors (JC1 and/or JC2) on the printed circuit board,
you will get the muting functions that can serve your purpose.
You need to use no soldering iron.
O=Channel is ON. X=Signal is muted.
To mount the BG-10 in a standard 19-inch equipment rack, use the
optional MB-922 Rack-mounting kit.
MB-922 (silver)
(OPTION)
Fix MB-922 with attached 4 screws.
The length of the screws should not exceed 15mm (3/5 inches).
The mounting kit MB-921A is designed for mounting 2 of the
BG-10 on the cabinet rack.
To mount the BG-10, remove four plastic feet provided on the
bottom surface of the unit, and place the metal joint as illustrated.
MB-921A (Silver)
(OPTION)
metal joint
Fix MB-921A with attached 4 screws.
The length of the screws should not exceed 15mm (3/5 inches).
Volume Control Cover
CAUTION:
These servicing instructions are for use by qualified personnel
only. To avoid electric shock do not perform any servicing
other than that contained in the Operating Instructions unless
you are qualified to do so. Refer all servicing to qualified
service personnel.
Operation
When all connections are completed, turn power switch on. The
POWER INDICATOR (LED) lights green.
ADJUSTMENT OF VOLUME
Adjust the individual input volume controls to obtain the desired
operating level for respective inputs.
ADJUSTMENT OF TONE QUALITY
The tone quality of MIC/TEL INPUT is unadjustable but that of
PROGRAM INPUT is adjustable.
Adjust the tone quality using the BASS and TREBLE CONTROLS
(preadjustable) on the rear panel. Each of the controls provides
frequency-response characteristics of boost and attenuation. Normal
of flat response is obtained at center position. Turn CW to boost
response.
Installation
Servicing
YA-910 (Black)
(OPTION)
Do not block the cover ventilation holes.
The BG-10 should not be placed in areas;
1 with
poor
ventilation.
2 exposed
to
direct
sunlight.
3 with high ambient temperature or adjacent to heat-generating
equipment.
4 with
high humidity or dusty levels.
5 susceptible
to
vibration.
CAUTION:
Do not remove the case or you may
encounter an electric shock.
Unpacking
Upon receipt of the amplifier shipment, please inspect for any
damage incurred in transit. If damage is found, please notify your
local TOA representative and the transportation
company
immediately.
State date, nature of damage, whether any damage was noticed on
the shipping container, prior to unpacking. Please give waybill
number of shipping order.
Failure
Should amplifier fail, contact your nearest TOA authorized con-
tractor or service center.
JC1 and JC2 inserted
only JC1 removed
only JC2 removed
JC1 and JC2 removed
Mute Terminal
Open
Mute Terminal
Close
MIC/TEL
PROG
RAM
MIC/TEL
PROG
RAM
