Sony SX-M700 Service Manual page 17

Troubleshooting Guide
Should a problem arise in your system, check the system while referring to the
instructions in the table below. If the system continues to malfunction after
applying the following checks and remedies, contact your nearest Sony dealer.
The system indicates the problem by lighting the microphone indicator and MIC
ON/OFF button of chairman's/delegate's units.
Lighting of the
microphone indicator
Possible cause
and MIC ON/OFF button
of the chairman's unit/
delegate's unit
The indicator and button The chairman's unit/
blink for a few seconds delegate's units for a
when the POWER switch simultaneous
of the control unit is set interpretation conference
to ON. system, SX-C700A/
D700A/C750/D750, and
those for a conference
system, SX-C100A/
D100A/C150/D150, have
been connected.
The indicator and button The units whose
of the chairman's/ indicator and button are
delegate's units continue blinking cannot be
to blink, after the power controlled by the control
switch of the control unit unit and cannot be used
is set to ON. in this system.
After the unit has been A communication error
operated for a while after has occurred.
the power is turned on,
the unit's indicator and
button start blinking and
do not go out, even after
a few seconds.
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Remedies
To configure the simultaneous conference system, use only
SX-C700A/D700A/C750/D750 units.
The SX-C100A/D100A/C150/D150 can be used. However,
the simultaneous interpretation cannot be heard.
• When the indicator and button of units subsequent to the
16th unit of the units connected to one DELEGATE'S/
CHAIRMAN'S connector of the control unit blink:
– More than 16 units cannot be connected to one
DELEGATE'S/CHAIRMAN'S connector in series.
Disconnect the 16th unit and subsequent units.
• Even though the number of connected units is less than
16, the indicators of some of the connected units blink:
– The first unit whose indicator and button are blinking
may be defective, or the connecting cable may be
broken.
Disconnect the first unit of those whose indicator and
button are blinking. When the indicator and button of the
subsequent units stop blinking and go out, it indicates
that the disconnected unit was defective. Remove it from
the system or replace it with a functioning unit.
When the indicator and button continue to blink even
after removing the first unit, the connecting cable is
probably broken. Replace the connecting cable linking
the first unit whose indicator and button are blinking and
the unit immediately prior to that unit.
• Even though the number of connected units is less than
16, the indicator and button of some of the connected units
blink:
– The unit whose indicator and button blink is defective.
Disconnect it from the system or replace it with a
functioning unit.
Briefly turn the power off, then back on again.
If the unit subsequently operates normally, communication is
resumed.
If this problem occurs frequently, contact your nearest Sony
dealer.
If the indicator and button continue to blink just after the
power is turned on again, a problem described above may
have occurred. Proceed as described above.
(Continued)
Lighting of the
microphone indicator
and MIC ON/OFF button Possible cause
of the chairman's unit/
delegate's unit
The channel of the
The earphone may be Insert the earphone plug into the earphone jack surely.
language to be disconnected.
monitored cannot be
selected by the CH
selector.
The volume of the The earphone may be Insert the earphone plug into the earphone jack surely.
earphone cannot be disconnected.
adjusted by using the
VOL control.
The indicator and button • The mode is that
• Wait until the speaker finishes speaking. Press the MIC
blink and the microphone where the number of
ON/OFF button again.
is disabled even if the speakers is limited.
• Wait until the chairman releases the PRIORITY button.
MIC ON/OFF button is • The PRIORITY button
pressed. is held down by the
chairman.
Remedies
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