Front Panel Controls and Features
Input Connections
PROGRAM INPUT CONNECTION
Screw terminal (10k-ohm, balanced)
PROGRAM
Input source
Input source such
as SCA tuner
RCA phono plug
MIC/TEL INPUT and MUTE CONNECTION
MUTE MIC/TEL
Rear Panel Controls and Features
MIC
Switch
Input source
Switch
or
MUTE MIC/TEL
E COM
HOT
Output Connections
Output transformer taps provide connections for 4-ohm and 8-ohm
speakers, plus 70-volt (490-ohm) and 25-volt (62-ohm) speaker dis-
tribution outlets. Class 2 wiring may be used. Connect to the
terminal of desired impedance and COM (common).
Connect speakers to
one of these output.
Note: Impedances indicated above imply total speaker
system impedances.
Item
1
2
3
4
Name
POWER
ON-OFF
SWITCH
POWER
INDICATOR
(LED)
VOLUME
CONTROL
FOR MIC OR
TELEPHONE
PAGE.
PROGRAM
INPUT
VOLUME
CONTROL
Function/Description
Applies line power. Two-position
pushbutton switch for on-off modes.
Illuminates when power is on.
Green light-emitting diode.
Adjusts gain of MIC or TELEPHONE
page Input.
Turn clockwise to increase gain.
Adjusts gain of P R O G R A M Input.
Turn clockwise to increase gain.
Item
9
10
11
12
Name
MIC/TEL
SELECTOR
SWITCH
TREBLE
CONTROL
BASS
CONTROL
GROUND ( E )
TERMINAL
Function/Description
To be selected according to the program
source connected to the MIC/TEL input
terminals.
Adjusts treble response on PROGRAM
INPUT. MIC/TEL INPUT is not
influenced by this treble control.
Turn clockwise (CW) to boost and
counterclockwise (CCW) to attenuate
high frequency. Tone is flat at center.
Adjusts bass response on P R O G R A M
INPUT. MIC/TEL INPUT is not
influenced by this bass control.
Turn CW to boost and CCW to
attenuate low frequency. Tone is flat
at center.
Should be grounded.
Item
1
2
3
4
5
6
7
8
Name
AC POWER
SUPPLY
CORD
AC FUSE
(250V, 0.5A)
OUTPUT
TERMINALS
AC OUTLET
(Unswitched)
PROGRAM
INPUT
(Screw
Terminal)
PROGRAM
INPUT
(RCA phono
jack)
MUTE
MIC/TEL
INPUT
Function/Description
Connects to power source.
Protects amplifier from excessive
current drain. Replace only with same
type fuse. Refer to qualified service
personnel if fuse blows repeatedly.
Provide connections for speakers.
(See "Output Connections")
Provides AC power to a u x i l i a r y equip-
ment having power consumption of up
to 500W.
Balanced Transformer Input.
10k ohms.
Unbalanced Input. 10k ohms. Serves as
auxiliary input to accept SCA tuner, etc.
Note; Either of the two program inputs
is to be used. Do not use the two inputs
at the same time.
When short-circuited between the Mute
and Ground ( E ) terminals, the micro-
phone or telephone page input overrides
the program input.
Refer to "Muting for details.
Balanced Transformer Input. 600 ohms.
TOA ALL-PURPOSE AMPLIFIER
