Toa YA-1000A User Manual download pdf

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-1000AFAULT 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

Off

Normal

Faulty

Normal/faulty

State Power indicator

Lights green

Off

Break

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

Summary of Contents

Page 1 - CIRCUIT MODULE

24 VDC (supplied from the power amplifier)20 mALINE IN: Connects to the power amplifier output (100 V line)Power amplifier's power lamp is exting

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Toa YA-1000A User Manual

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