Toa FS-971 - Manual

This instruction is a supplement to the installation manual for the FS-971 Rack-Mounted Emergency PA System. Please
read this in conjunction with the section “9.2. Specifications and Connections of Monitor Panel MP-011” of the FS-971
Series Installation Manual (Applied Installation).
FS-971
INSTALLATION MANUAL SUPPLEMENT
Notes
• Carry out the following procedures before mounting the MP-011 unit in an equipment rack.
• When the unit is shipped from the factory, a white jumper wire connector is installed, presetting the voltage to 100 V line.
To prevent a fire or electric shock, never open nor remove the unit
case as there are high voltage components inside the unit. Refer all
servicing to qualified service personnel.
WARNING
2-1. Depending on the setting voltage, select
a jumper wire connector with the correct
corresponding wire color (supplied with
the MP-011). The jumper wires are color-
coded according to setting voltage, as
shown in the table at right:
Depending on time of production, the MP-011 Monitor Panel differs in speaker line voltage setting methods. There are 2
different methods: one using a simple slide switch, and the other using an internal jumper wire connector.
2-2. Replace the preinstalled SW1 jumper connector on the printed circuit board.
To remove the jumper connector, pull it out while pressing on the connector lock (releasing the lock).
Step 3. Replace the top panel.
Speaker line selector switch
MP-011
Voltage Setting Jumper Wire Color Remarks
70 V line
100 V line
50 V line
White Preinstalled in the MP-011
Yellow
Supplied with the MP-011
Red
SW1
MP-011
Jumper connector Jumper wire
(supplied with the MP-011)
Connector lock
SW1 connector
Jumper connector
Printed circuit board
If the rear panel of the MP-011 has a speaker line voltage
selector switch located at the left, set this switch to the voltage
corresponding to the actual speaker line voltage.
Note
The selector switch is factory-preset to the “100V” position.
2. Voltage Switching Using the Internal Connector
If no voltage selector switch is provided on the MP-011’s rear panel, use the unit’s internal connector to switch the voltage
by replacing the jumper connector piece. When replacing, use one of the 2 jumper connector pieces supplied with the MP-
011 Monitor Panel.
Step 1. Remove the 7 mounting screws holding the top panel to detach the panel.
Step 2. Replace the preinstalled jumper connector to change the voltage.
1. Voltage Switching Using the Slide Switch
SWITCHING MONITORED SPEAKER OUTPUT LINE VOLTAGE
133-41-064-00