Toa ER-604W User 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.
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.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION
• Make sure that the volume control is set to minimum position before use. Loud noise produced when using
the unit at high volume can impair hearing.
• Make sure to observe the following handling precautions so that a fire or personal injury does not result from
leakage or explosion of the battery.
· Do not short, disassemble, heat nor put the battery into a fire.
· Avoid using both new and old batteries together.
· Do not solder a battery directly.
· Note correct polarity (positive and negative orientation) when inserting a battery in the unit.
· Avoid locations exposed to the direct sunlight, high temperature and high humidity when storing batteries.
2. GENERAL DESCRIPTION
TOA's ER-604W megaphone is a small, lightweight shoulder-held megaphone that is also supplied with a
whistle. Its close-talking microphone features a press-to-talk switch and a volume control, which can be easily
operated by hand. The ER-604W's External input terminals can also be connected to an optional wired
microphone, headset microphone, CD player, MD player or cassette player to make public address
announcements or play music.
3. HANDLING PRECAUTIONS
• The ER-604W megaphone is not waterproof. Avoid exposure to rain or environments where it may be
splashed by water or other liquids.
• When the batteries are left loaded for long periods of time, be sure to check the batteries periodically for
discharge and leakage.
• Immediately contact your TOA dealer if the following irregularities should occur.
· Smoke coming from the unit or a strange smell detected.
· Water or other foreign objects get inside the unit.
· No sound heard (after checking to be sure that the batteries are loaded in correct orientation, and
satisfactorily charged).
To avoid catastrophic failure, make no further attempt to use the unit in these conditions.
• Avoid storing the unit in humid or dusty locations, in locations exposed to direct sunlight, near heaters, or
exposed to sooty smoke, as these conditions may result in unit failure.
• Do not use the unit for extended periods of time with a distorted sound output. This could cause the speaker
to become hot and possibly result in unit failure.
• Noise may be produced when a mobile phone is used in close proximity of the unit. However, this is not a
failure. Use the mobile phone as far as possible from the unit.
• Use a tightly wrung-out damp cloth to clean the unit. If the unit becomes extremely dirty, use a cloth
moistened in a neutral detergent and tightly wrung-out. Never use volatile liquids such as benzene or thinner
to clean the unit, as these may deform or discolor its case.
ER-604WCOMPACT MEGAPHONE
4. NOMENCLATURE AND FUNCTIONS
1. Speaker
2. Shoulder strap
Use this strap to hang the unit from the shoulder for transport or use.
3. Microphone hanger
Hook the microphone onto this hanger when not used.
4. Talk switch
Press to talk (power turns ON). Release to turn the power OFF.
5. Volume control
Rotate upward to increase output volume.
6. Stand socket
The megaphone can be mounted on the optionally available ST-16
Speaker Stand using the screw mount located on its bottom surface.
Mounting details are described in the ST-16 instruction manual.
7. External input volume control [VOLUME]
Adjusts the volume of external equipment connected to the rearmounted external input terminals (13) – (15).
8. Battery indicator LED [BATTERY CHECK]
To check the battery voltage, switch the External input power
switch (9) to the ON position.
• Steadily lit: Sufficient battery voltage available.
• Flashing: Replace batteries.
9. External input power switch [POWER]
Press to turn the power ON for use with connected external
equipment. Press again to turn the external power OFF.
Note: Power is constantly used while this switch is in the ON
position. When not using external equipment, be sure to set
this switch to the OFF position to prevent battery discharge.
10. Signal tone switch [WHISTLE]
A whistle tone sounds while this switch is pressed, and stops
when released.
Note: Output volume is fixed, and cannot be adjusted with the
volume control.
11. Voice switch [VOICE SWITCH]
Set this switch to the ON position when using connected external
equipment to prevent battery discharge. (Normally set this switch
to the OFF position.)
12. External power input terminal [EXT. POWER]
Use the supplied plug cord for external power supply.
13. General microphone input terminal [MIC 1]
A 6.3 mm phone jack. Unbalanced input.
14. Electret condenser microphone input terminal [MIC 2]
A 3.5 mm mini jack.
15. Auxiliary input terminal [AUX]
A 3.5 mm mini jack.
16. Battery cover
Install 8 R6 (C-cell) batteries. Remove the batteries from the unit
when not used for extended periods of time.
[Top (Operation Area)]
[Rear]
[Microphone]
Never use the megaphone pointed directly at a person's ears,
as permanent hearing impairment could result. When testing,
make sure that the speaker is pointed toward the ground.
CAUTION
2
1
Talk area
4
EXT. MIC/AUX
VOLUME
BATTERY
CHECK
POWER
ON
OFF
87 9 10
5
WHISTLE
PUSH ON
3
6
Volume
High
11 12 13 14 15
MIC.
0.8 A
PUSH
ON OFF
VOICE
SWITCH
POWER
BATTERY
ORIENTATION
DC12 V
MOVING COIL
MIC 1 MIC 2 AUXEXT.
EXTERNAL INPUT
ELECTRET
CONDENSER
R6P, SIZE "AA"
8 PCS
MIC.
16
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