When Using An External Amplifier; Troubleshooting - Toa WA-1830M-AS Instruction Manual

10.3. When Using an External Amplifier

Step 1. Connect the unit's External Line Output terminal to the external amplifier's AUX Input terminal or the
other units Line Input terminal using a phone plug cable. Output sensitivity is 0 dB, 1 kΩ. (0 dB = 1 V)
LO W
AUX IN
01
OPEN

11. TROUBLESHOOTING

Symptom
The power indicator lamp does not
light even when the power switch
is set to the ON position.
(Power is not supplied.)
The low battery indicator does
light.
No sound output.
When using a wireless microphone
The Radio signal reception
indicator lamp does not light.
(No signal reception.)
No sound output.
When using the MP3 Player
USB/SD CARD
The file can not be read.
No sound output.
Step
1
TONE WIRED MI C
HIGH
LINE OU T
0
AUX IN (MONO )
External output terminal
OPEN
ref A-2000
External amplifier, etc.
220-240V~ 50/60Hz 238W
model A-2240 H
OUTPUT RATED 240W
MAX 360W
TOA Corporation
MADE IN INDONESIA
[When operated on AC power]
The power plug is not connected
to an AC outlet.
[When operated on battery]
Battery not inserted with
correct polarity.
[When operated on battery]
Battery discharged.
The Internal or External switch is
set to the External position.
The volume control is set to the "0"
position
The tuner unit is not installed.
The wireless microphone's power
switch is switched OFF.
The wireless microphone's
batteries have lost their charge.
The wireless microphone's
frequency setting (Channel)
does not match the tuner unit's
setting (Channel).
The volume control is set to the "0"
position.
Format file is not supported.
USB / SD Card problem.
Setting MP3 unit volume in volume
minimum position.
Phone plug cable
Pin cable
DO NOT USE THESE 4 , 70V AND Ω
100V TERMINALS AT THE SAME TIME REC OUT AUX 2 AUX 1
3
INPUT OUTPUT
0dBV 600 Ω -20dBV 10k Ω -20dBV 10k Ω -60dBV 600 Ω -60dBV 600
UNBALANCED UNBALANCED UNBALANCED BALANCED BALANCED
20A COM 4 Ω COM 70V 100V
31V 21 Ω 42Ω
24V
CAUTION !
DO NOT REMOVE TERMINAL OUTPUT COVER AND
CASE BEFORE DISCONNECT POWER SUPPLY.
Cause
2 1 MUTE ADJ
Ω -60dBV 600 Ω
BALANCED
0 -30dB
PHANTOM
OFF ON
Remedy
Insert the power plug into the AC
outlet.
Reinstall the battery correctly.
Charge battery.
Set the switch to the Internal
speaker position.
Rotate the volume control
clockwise.
Install the tuner unit.
Set the wireless microphone power
switch to the ON position.
Replace the microphone's
batteries with new ones.
Set both the wireless microphone
and the tuner unit to the same
frequency (Channel).
Rotate the Volume control knob
clockwise.
Replace the format to MP3 or WAV.
Replace USB / SD Card of the
other / new.
Push in MP3 from V 0 to V 1 ~
V 32 (as needed).
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