Aiphone T3130BGM Operating Instructions Manual page 10

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PROFESSIONAL AUDIO & SOUND
CAUTION !
REMOVAL OF THE AMPLIFIER COVER PRESENTS AN ELECTRICAL SHOCK HAZARD
ALWAYS REMOVE THE POWER CORD FROM THE AC WALL OUTLET
THE FOLLOWING INSTRUCTIONS REQUIRE THE REMOVAL OF THE AMPLIFIER PROTECTIVE COVER AND ARE
PROVIDED FOR USE BY QUALIFIED PERSONNEL ONLY.
TO AVOID THE RISK OF ELECTRICAL SHOCK DO NOT PERFORM ANY INSTALLATION OR SERVICING UNLESS YOU
ARE QUALIFIED TO DO SO. REFER INSTALLATION OR SERVICING TO QUALIFIED PERSONNEL.
MIC INPUT UNMUTING FUNCTION
DIRECT MUTING/UNMUTING
MICROPHONE INPUT UNMUTING FUNCTION
The Microphone Input can be preset to be normally MUTED
(INPUT OFF) - (JUMPER JP1 - ON) and turned ON when the
UNMUTE and G Terminals are shorted by a Switch Contact. This
function allows for a multi zone installation using two or more
Amplifiers and a single Microphone and Zone Switches. When the
Jumper JP1 is set to the ON Position the Microphone Input is OFF
and it is turned ON when the UNMUTE and the G terminals are
closed by a switch.
JUMPER NO. FUNCTION
JP 1 MICROPHONE Mute
If the Jumper preset requires resetting follow the instruction below.
ACCESS TO MUTING JUMPERS
1) Remove Power Cord from AC Outlet.
2) Remove the four screws on each side of the Amplifier secur-
ing the Top Cover to the Chassis.
3) Lift Cover and carefully slide Cover out towards the rear.
4) Locate the Main Amplifier Printed Board No.3130-1 attached
to the front panel and behind the Controls.
5) Set Jumpers as required.
MIC MUTE JUMPER JP1= ON
VOX
VR9
VOX
Fig. 10B - MIC Input Muting Jumper Setting
PAGE 10
INTEGRATED AMPLIFIERS
INSTALLATION AND WIRING
POSITION SET
ON
JP3
JP2
ON
OFF
ON
OFF
Specifications are subject to change without notice
MICROPHONE WITH DIRECT UNMUTING SWITCH
MIC
UNMUTING SWITCH
PROGRAM
UNMUTE G MUTE G COM
3115unmutswit00
Fig. 10 - Direct Unmuting Terminals and Diagram
A typical 3 Zone Switching Panel is shown below. Use
SPDT Momentary Contact Switches. See complete 3 Zone
Wiring Diagram provided in this Manual.
TO AMP 1
TO AMP 2
TO AMP 3
TO MIC INPUT
3 Zone Panel
Fig. 10C - 3 Zone Switching Panel
WIRING
SHIELD
MIC TEL
HOT G COM HOT G COM
ZONE PAGING SELECTORS
1 2 3
ZONE 1 ZONE 2
ZONE3
PAGING MICROPHONE
T3115/3130/3160BGM
HOT