Toa PC-139 Instruction Manual

1. SAFETY PRECAUTIONS

• Be sure to read the instructions in this section carefully before use.

• 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.

• Do not operate the unit for an extended period of time with the sound distorting. This is an indication of a
malfunction, which in turn can cause heat to generate and result in a fire.

• Install the unit only in a location that can structurally support the weight of the unit and the mounting bracket.
Doing otherwise may result in the unit falling down and causing personal injury and/or property damage.

• Tighten each nut and screw securely. Ensure that the mounting hardware has no loose joints after
installation to prevent accidents that could result in personal injury.

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.

PC-139HEAT-RESISTANT HORN SPEAKER

Ceiling Suspension Type

INSTRUCTION MANUAL

2. GENERAL DESCRIPTION

TOA's PC-139 is a high-efficiency, heat-resistant ceiling suspension-type speaker designed exclusively to be
used in conjunction with emergency broadcast systems.

3. SPECIFICATIONS

Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.

WARNING

Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.

CAUTION

Note: The design and specifications are subject to change without notice for improvement.

• Included components

Speaker unit (with mounting bracket B) ...... 1

Mounting bracket A ...................................... 1

Suspension pipe .......................................... 1

Decorative cover .......................................... 1

M4 x 30 screw .............................................. 2

4.1 x 32 wood screw .................................... 2

Rated Input 1 W
Rated Impedance 10 kΩ
Sound Pressure Level 100 dB (1W, 1m)
Frequency Response 500 – 10,000Hz
Heat Resistance Operates normally for 15 minutes in air current of 380°C
Withstand Voltage 1 kV AC, 1 minute (between input terminal and body)
Insulation Resistance 500 V DC, over 10 MΩ (between input terminal and body)
Speaker Angle Adjustment Range Horizontal: 360° rotation, Vertical: 90° rotation
Mounting Pitch 65 – 85 mm
Finish Speaker: Incombustible material (aluminum), off-white, paint
Weight 1.7 kg (including mounting brackets and hardware)

133-01-096-7B

k

4. INSTALLATION

Be sure to mount and connect all parts correctly
AFTER feeding the speaker cable through the
suspension pipe.

Step 1. Attach Mounting Bracket A to the ceiling or

an outlet box using the supplied screws.

1-1. Ceiling Mounting

1-2. Mounting to an Outlet Box

Note

Prepare an outlet box (not supplied with the
unit) for mounting behind the ceiling panel.

6. DIMENSIONAL DIAGRAM

5. SPEAKER ANGLE ADJUSTMENT

Step 1. Loosen both Mounting Screw B and the wing

nut securing the speaker.

Step 2. Adjust the speaker angle.

• Rotate Mounting Bracket B to adjust
horizontal angle.

• Move the speaker itself to adjust vertical
angle.

Step 3. After completing the positioning adjustment,

retighten both Mounting Bracket B and the
wing nut.

Step 2. Insert the suspension pipe through the

center hole of Mounting Bracket A, installed
in Step 1, then tighten Mounting Screw A to
secure the pipe.

Step 3. Mount the decorative cover.

Note

Slowly slide the decorative cover over the
end of the mounting pipe while rotating it so
as not to dislodge its rubber grommet.

Step 4. Insert Mounting Bracket B into the

suspension pipe, then tighten Mounting
Screw B to secure the bracket.

Step 5. After first detaching its rear cover, mount the

speaker unit to Mounting Bracket B using
the supplied wing nut and washer.

Step 6. Connect the speaker cable leads to the

speaker unit's corresponding terminals.

Step 7. Reattach the speaker's rear cover.

Ceiling

Mounting bracket A

Supplied screws

Speaker cable

Mounting screw A

Suspension pipe

Ceiling

Mounting bracket A

Ceiling

Mounting bracket A

Mounting screw pitch

65 – 85 mm

Reinforcements

Mounting screw A

4.1 x 32 wood screw

Outlet box

Mounting screw A

M4 x 30 screw

Decorative cover

Rubber grommet

Mounting bracket B

Speaker unit

(with the rear cover off)

Rear cover

Mounting screw B

Washer
Wing nut

Terminal bloc

ø114

ø16

ø122

146

180

310

Unit: mm