Toa YA-1000A - Manual

24 VDC (supplied from the power amplifier)
20 mA
LINE IN: Connects to the power amplifier output (100 V line)
Power amplifier's power lamp is extinguished.*
Make of relay contact (Contact capacity: 30 VDC, 1 A)
VP-1060B, VP-1120B, VP-1240B, PA-3640VB
YA-1000A FAULT DETECTION
CIRCUIT MODULE
INSTRUCTION MANUAL
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
• To use your equipment properly, be sure to read these safety precautions and the
installation manual before operating the equipment.
• Make sure to observe the instructions in this manual as the conventions of safety symbols
and messages regarded as very important precautions are included.
• We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily
injury and property damage which could result from mishandling. Before operating your
product, read this manual first so you are thoroughly aware of the potential safety hazards
as well as understand the safety symbols and messages.
SAFETY PRECAUTIONS
JP CN7
Circuit board A
When using
the VP series amplifiers
Drive circuit board
When using the PA-3640VB
NORMAL
YA1000A
JS1
CN7
Knockout panel
Cut off with nippers. (4 places)
Note
Run the unit's connector through the mounting hole.
Mounting screw
YA-1000A
[Example] When connecting the unit to the VP-1120B
Power amplifier's terminal block
Note
Connect other power amplifiers in the
same manner.
133-05-299-6C
Power amplifier Fault detection
output terminal
(relay contact)
Power supply
On
Off
Normal
Faulty
Normal/faulty
State Power indicator
Lights green
Off
Off
Break
Make
Make
Indicates a potentially hazardous situation which, if
mishandled, could result in death or serious personal injury.
Indicates a potentially hazardous situation which, if
mishandled, could result in moderate or minor personal
injury, and/or property damage.
When Installing the Unit
• To reduce chances of fire or electric shock, leave the installation to the shop from whom
the unit was purchased. Construction work requires professional skills and experience.
• When mounting and connecting the unit, switch off the (V-1000 series) amplifier power.
Failure to do this may result in electric shock.
• Take care that water does not get into the unit or the power amplifier in which the unit is
installed, otherwise fires or electric shock may result.
When the Unit is in Use
• Should any of the following irregularities occur, unplug the (V-1000 series) amplifier in
which the unit is installed, and inform the shop from where the unit was purchased. Make
no further attempt to operate the unit as a fire or electric shock may be caused.
· If you detect smoke or a strange smell coming from the unit.
· If water or any metallic object gets into the unit.
· If the unit falls, or the unit case breaks.
· If the power supply cord is damaged (exposure of the core, disconnection, etc.)
· If it is malfunctioning (no tone sounds.)
• To prevent fires or electric shock, do not repair the power amplifier in which the unit is
installed, because there are high voltage components inside the power amplifier. Refer all
servicing to the shop from where the unit was purchased.
• Do not insert nor drop any metal object, combustibles or any other foreign object in the
power amplifier in which the unit is installed from the amplifier's ventilation slots, etc. Fires
or electric shock may result.
Speaker line (50 V line)
YA-1000A
Power amplifier's terminal block
Note
Connect other power amplifiers in the
same manner.
Terminal block cover
Mounting screw
YA-1000A unit installed in the power amplifier
Shorting bar • Check to confirm that the amplifier's power lamp
is extinguished.
• Check to confirm that the YA-1000A's fault
detection output terminal [ ] is at make.
WARNING
CAUTION
WARNING
GENERAL DESCRIPTION
OPERATION TEST
THE CONDITIONS THAT CLOSE (MAKE) A FAULT DETECTION OUTPUT
SPECIFICATIONS
INSTALLATION
The YA-1000A fault detection circuit module is designed to be installed in the power
amplifier (VP series and PA-3640VB) to detect power amplifier failures.
Caution
Do not use the unit during the power amplifier's parallel operation because the unit does
not operate.
CONNECTION
Check to be sure that the YA-1000A's SW201 switch is set to the "A" position.
1. Remove the power amplifier's case or top plate, then cut jumper wire JP on the
amplifier's circuit board A.
When using the PA-3640VB amplifier, change the connection of JS1 jumper on the
amplifier's drive circuit board to the "YA1000A" position.
2. Using nippers, remove the knockout panel located on the power amplifier's rear panel.
3. Insert the YA-1000A into the resultant hole, then fix it using the two supplied 3x8 screws.
1. Connect the power amplifier's COM terminal to the YA-1000A's COM terminal. Also
connect the amplifier's 100V terminal to the YA-1000A's HOT terminal.
4. Connect the YA-1000A's connector to CN7 on the power amplifier's circuit board A (drive
circuit board in the case of the PA-3640VB). (Refer to the figure of Step 1 above.)
5. Replace the power amplifier's case or top plate.
Power Source
Power Consumption
Input
Fault Indication
Fault Detection Output
Usable Amplifiers
Note
Even when using the voltage other than 100 V for the power amplifier's speaker output,
connect the YA-1000A's HOT terminal to the amplifier's 100V terminal.
2. Place the supplied terminal block cover over the unit's terminal block using the two
supplied M4x6 mounting screws.
1. Set the power amplifier's power switch to the ON position.
• The amplifier's power lamp will light green.
• Check to confirm that the YA-1000A's fault detection output terminal [
] is at break.
2. Remove a shorting bar mounted to TEST terminals on the YA-1000A installed in the
power amplifier.
3. Set the power amplifier's power switch to the OFF position, then replace the shorting bar.
• The amplifier's power lamp will be extinguished.
• Check to confirm that the YA-1000A's fault detection output terminal [
] is at make.
* When the AC or DC fuse is blown off, the power amplifier's power lamp is extinguished,
making a relay contact of the fault detection output.
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Terminal block cover ... 1 Mounting screw (3x8) ... 2 Mounting screw (M4x6) ... 2