About the Voice switch (11) (normally set to the OFF position).
When using equipment connected to External input terminals (13) – (15), battery discharge can be
prevented by setting the Voice switch to the ON position, thus allowing the unit to be used for longer
periods of time. This is especially convenient when intermittently using an external microphone, since it
can be used freely with no need to constantly turn its power switch ON and OFF.
When the Voice switch is in the ON position, the unit automatically switches to operation mode at the
first detection of external input, and switches to Standby mode if no signal is received from the
connected external equipment for a period of 2 – 3 seconds.
Notes
• Immediately after the Voice switch is turned ON, there may be a momentary loss of initial output,
however this is not a failure. If this is not acceptable, leave the switch OFF.
• The Voice switch function cannot be used with the attached hand-held microphone.
Battery cover
5. BATTERY INSTALLATION
Step 1.
Remove the battery cover (16) by unscrewing its knob counterclockwise.
Step 2.
Insert 8 batteries, noting the battery polarity markings provided inside the
receptacle.
Step 3.
Correctly replace the cover, then secure with its screw knob slightly
holding the battery cover.
6. USING THE SUPPLIED MICROPHONE
Step 1.
Detach the microphone from the microphone hanger (3).
Step 2.
Using the volume control (5), adjust the volume to an appropriate level that does not generate
feedback when holding down the microphone talk switch (4).
Step 3.
Speak into the microphone while holding it about 1 cm away from the mouth.
Notes
• Take care not to block the holes in the microphone's rear panel, as output volume could be
drastically reduced.
• The microphone features an anti-bacterial treatment which helps keep it clean and sanitary.
7. USING EXTERNAL EQUIPMENT
Step 1.
Connect the external equipment.
1-1.
When using a general-purpose microphone
Connect the moving coil-type microphone to the General microphone input terminal [MIC 1] (13).
1-2.
When using a headset microphone
Connect the headset microphone to the Electret condenser microphone input terminal [MIC 2] (14).
Notes
• To avoid megaphone failures, do not connect any other equipment than an electret condenser
microphone to these inputs.
• When using TOA's optional WH-4000A Headset Microphone, speak into the microphone while
keeping it about 1 cm away from the mouth. Although the WH4000A Microphone has a lock knob for
securing the plug, this lock knob is not used with the ER-604W Megaphone.
1-3.
When using a CD, MD or cassette player
Connect the CD, MD or cassette player to the Auxiliary input terminal [AUX] (15) using the supplied
3.5 mm mini plug.
Note:
When using the supplied mini plug, the connection cord and external equipment-side plug must
be prepared separately.
Step 2.
Set the External input power switch [POWER] (9) to the ON position.
Step 3.
Adjust the volume with the External input volume control [VOLUME] (7).
Note:
Connected external equipment can be used simultaneously. However, since the volume of
each component cannot be individually adjusted by the megaphone, use each component's
volume control for individual volume adjustment.
Notes on Microphone Storage
Set the volume control (5) to the minimum position, and insert the microphone into the microphone hanger (3).
If the microphone is inserted with the volume control set to the high volume position, when it is inserted into
or detached from the hanger, the talk switch (4) could be accidentally pressed, causing feedback.
