Troubleshooting – Toa S-D7300 User Manual
Page 11

11
Follow the table below for the connector wiring and the Microphone/instrument selector switch setting depending
on the microphone or musical instrument to be connected.
Pin No. 1
Pin No. 2
Pin No. 3
Microphone/
instrument selector
switch
2-wire microphone
GND
(NC)
Audio signal input
"MIC" position
3-wire microphone
GND
+5 V DC
Audio signal input
"INST" position
Musical instrument
GND
Audio signal input
"INST" position
Notes
• In the case of the microphone cable having a shield wire and Ground wire separately or the musical instrument
cable, connect the shield wire to the Lemo connector’s case, and GND wire to Pin No. 1 (GND).
• When using a 3-wire microphone, connect a 10 kΩ resistor between Pin Nos. 1 and 3.
Usable LEMO 3-pin connector (Reference): FVB.00.303.NLAE24
15. TROUBlESHOOTING
Symptom
Point to check
Remedy
The battery indicator not
light even if the power switch
turned on.
Battery polarity not correct.
Reinsert batteries correctly.
Battery discharged.
Replace the batteries with new ones.
When the power switch
turned on, the battery
indicator flashes red.
Battery discharged.
Replace the batteries with new ones.
When the power switch
turned on, the battery
indicator flashes green.
Group or channel set to the
one not listed in the frequency
table.
Reset the group or channel according to
the “Frequency table.”
Receiver’s antenna indicator
not light even when the
power switch turned on.
(No signal received.)
Group, channel, and ID set for
the wireless transmitter not
identical to those for wireless
receiver.
Reset the Group, channel, and ID for the
wireless transmitter to the same ones for
wireless receiver.
Interferes with other wireless
transmitter being used
simultaneously.
Group and channel not set
according to the “Frequency
table” (p. 8).
Check the “Frequency table” (p. 8),
then reset group and channel according to
the table.
Two wireless transmitters set
to the same ID number.
Set the different ID number.
Distance between the wireless
transmitters too close.
Keep the wireless transmitters at least 50
cm away from each other.
Wireless transmitter being
used too close to the receiving
antenna.
Keep the wireless transmitter at least 3 m
away from the receiving antenna.
The received audio signals
distorted or audio level too
low.
Gain selector switch not set
correctly.
Set the Gain selector switch appropriately
while monitoring receiver’s audio output
level meter.