Sony Speaker SRP X351P User Manual

2-347-110-21 (1)  
CONTENTS  
Safety Information ....................  
POWERED MIXER  
2
Main Feature ..............................  
Names and Functions...............  
Installation of The Tuner Unit ..  
External Dimensions ................  
Block Diagrams .........................  
Main Specifications ..................  
3
4
SRP-X351P  
9
9
10  
11  
Troubleshooting........................ Back Cover  
Operating Instructions  
Thank you for purchasing this Sony product. Please be sure  
to read this manual before using this product. After reading,  
keep the manual in a safe place for future reference.  
1999 by Sony Sound Tec Corporation  
 
Main Feature  
Powered Mixer Has 170W+170W(4) Power Amplifier,  
and 4 Microphones, 3 Line Inputs.  
For the customers in Europe  
This product with the CE marking complies with both the  
EMC Directive(89/336/EEC) and the Low Voltage Directive  
(73/23/EEC) issued by the Commission of the European  
Community.  
Built-in power amplifier satisfy a small PA system with  
170W+170W (4) output.  
Mixing of 4 microphone inputs and 3 stereo (line) inputs  
Line input (ST3) can be select 4 AV's one.  
Compliance with these directives implies conformity to the  
following European standards:  
•EN60065 :Product Safety  
•EN55103-1:Electromagnetic Interference(Emission)  
•EN55103-2:Electromagnetic Susceptibility(Immunity)  
This product is intended for use in the following  
Electromagnetic Environment(s):  
Wireless Tuner Unit Can Be Installed  
Two UHF SYNTHESIZED TUNER UNIT WRU-801A or  
WRU-806A can be installed.  
E1(residential),E2(commercial and light industrial),E3  
(urban outdoors) and E4(controlled EMC environment ex.  
TV studio).  
Wireless microphone system can be easy to set up.  
Wireless Remote Controller supplied  
AV input selection, master volume and MUTING can be  
controlled.  
Peak inrush current  
(1)Power ON,current probe method: 29A (240V)  
(2)Hot switching inrush current, measured in  
accordance with European  
Simple work of Sony's CD player or MD player, Cassette  
Deck can be operated*.  
standard EN55103-1: 25A (230V)  
*
AV equipment supplied with a wireless remote control or with  
Control-S terminal only  
Pour les clients européens  
Exclusive Input Connectors for Recording Equipment  
Line input (ST2) is separated from REC bass to avoid  
oscillation come from flowing of its own signal.  
Ce produit portant la marque CE est conforme à la fols à la  
Directive sur la compatibilité électromagnétique (EMC) (89/  
336/CEE) et à la Directive sur les basses tensions (73/23/  
CEE) émises par la Commission de la Communauté  
européenne.  
La conformité à ces directives implique la conformité aux  
normes européennes suivantes:  
•EN60065 :Sécurité des produits  
Enough Number of Input/Output Terminals, Various  
Function  
•EN55103-1:Interférences électromagnétiques (émission)  
•EN55103-2:Sensibilité électromagnétique (immunité)  
Ce produit est prévu pour être utilisé dans les  
environnements électromagnétiques suivants:  
E1(résidentiel),E2(commercial et lndustrie légère),E3  
(urbain extérieur) et E4(environnement EMC contrôlé ex.  
studio de télévision).  
1
2
The master input to connect equalizer or limiter.  
The ECHO SEND/RETURN terminals for connect  
Echo equipment  
3
4
5
The ASSIGN SWITCH cuts the microphone signals  
from MASTER OUTPUT.  
Tone control (BASS, TREBLE), BALANCE switch of  
stereo/monaural and MUTING button.  
The MIC GROUP knob for centralized control of  
summing signal from 4 microphone inputs.  
The CONTROL-S terminal  
Appel de courant de créte  
(1)Mise sous tension (ON), méthode de sondago  
du courant: 29A (240V)  
(2)Mesuré conformément à la norme européenne  
EN55103-1: 25A (230V)  
6
7
8
The RS-232C REMOTE terminal  
EIA standard 19 inch rackmountable (3U high)  
Für Kunden in Europa  
Dieses Produkt besitzt die CE-Kennzeichnung und erfüllt  
sowohl die EMV-Direktive (89/336/EEC) als auch die  
Dilevtive Niederspannung (73/23/EEC) der EG-Kommission.  
Die Erfüllung dieser Direktiven bedeutet Konformität für die  
folgenden Europäischen Normen:  
•EN60065 :Produktsicherheit  
•EN55103-1:Elektromagnetische Interferenz(Emission)  
•EN55103-2:Elektromagnetische Empfindlichkeit(Immunität)  
Dieses Produkt ist für den Einsatz unter folgenden  
elektromagnetischen Bedingungen ausgelegt:  
E1(Wohnbereich),E2(kommerzleller und in beschränktem  
Maße industrieller Bereich),E3(Stadtbereich im Freien) und  
E4(kontrollierter EMV-Bereich, z.B. Fernsehstudio).  
Spitzenstrom  
(1)Einschaltstrom, Stromsonde: 29A (240V)  
(2)Gemossen in EN55103-1: 25A (230V)  
3
 
Names and Functions  
Front panel  
1
2
9
3
4
5
6
7 8  
0
!¡  
MIC1  
MIC2  
MIC3  
MIC4  
ST1  
ST2  
ST3  
CLIP  
PROTECTION  
EMG  
+45V  
ECHO RETURN  
ECHO/  
AUX SEND  
ØON øOFF  
MASTER VOLUME  
MUTING  
RF/  
SIGNAL  
RF/  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
ØON øOFF  
+10  
+5  
0
+10  
+5  
0
+10  
+5  
0
A
B
C
D
-5  
-5  
-5  
-15  
-25  
-15  
-25  
-15  
-25  
MIC GROUP  
BASS  
TREBLE  
BALANCE  
MIC4  
MIN  
MAX  
MIN  
MAX  
L
R
PLAYER  
PLAYER/RECORDER  
!§ !¶ !•  
!ª  
!™  
!¢ !∞  
@º  
@¡ @™ @£  
!£  
1 POWER button  
7 CLIP indicator  
Pressing it turns on the power.  
Too high an output level will cause signal distortion  
and make the CLIP indicator light up. When this  
happens, lower the MASTER volume or the MIC/  
LINE level knob until the indicator turns off. If too  
much signal output for an extended period, it may  
cause the equipment to overheat or to damage the  
speakers.  
2 Wireless remote control sensor  
It catches the signal from the infrared wireless remote  
control.  
If this sensor is covered by something, the remote  
control may not function correctly. Place the unit so  
that the sensor will be easy to receive the remote  
control signal.  
8 PROTECTION indicator  
It lights up while the protection circuit is working.  
When the power is turned on, it also lights up for few  
seconds and it turns off when the amplifier become  
stable.  
3 ECHO/AUX SEND knob  
It adjusts the mixed signals after each channel fader  
and outputs to the ECHO SEND terminal.  
9 EMG indicator  
4 RF/SIGNAL indicators  
It lights up when the unit receives a signal from the  
emergency broadcast facilities and turns to standby.  
As for EMG, refer to P. 75.  
They light up regardless of the position of channel  
fader when sound signal of more than -20dB to the  
standard input level are input.  
As for MIC 1/MIC 2 would be light up when it  
received the signal while the wireless tuner unit is  
installed and switch of the microphone is turned on.  
0 +48V indicator  
It lights up while the Phantom power (DC+48V) is  
supplied through the MIC input terminal.  
5 ECHO RETURN switch  
MASTER VOLUME  
Use to adjust the volume of MASTER OUTPUT and  
SPEAKER terminal.  
When it is ON, the signal from the ECHO RETURN  
input are assigned to L/R and Rec Bus.  
6
MUTING button  
!™ MIC 4 terminal  
Use muting outputs from MASTER OUTPUT,  
MASTER INSERT, ECHO SEND, MIC GROUP  
OUT, and SPEAKER output terminals.  
This is input terminal in front for wired microphone.  
If the wired microphones are connected to the MIC 4  
terminals both at front and rear panel, the front input  
is given priority.  
Note : When you use the MIC 4, check the balanced  
connection.  
4
 
SELECT buttons  
MIC 1/MIC 2 fader knobs  
Use to adjust the mixing level of MIC 1/MIC 2.  
Either the wireless microphone or the wired micro-  
phone can be used in MIC 1/MIC 2.  
Use to select one of the unit connected to ST3 A to D  
input.  
S VIDEO and VIDEO signal from the selected input  
is directly output to the MASTER OUTPUT and the  
REC OUTPUT.  
The mixing level of the sound signal can be adjusted  
by ST3 fader knob.  
(Refer to page 6 and page 9.)  
When the WRU-801A or WRU-806A (optional) is  
put in to the tuner unit compartment at the rear panel,  
the wireless microphone is given priority while it is  
on.  
MIC GROUP knob  
Use to adjust the level of the signal after mixing in  
MIC 1 to 4 in a lump.  
MIC 3 fader knob  
Use to adjust the mixing level of MIC 3.  
The signal will be output from the MIC GROUP OUT  
terminal.  
Only the wired microphone can be used in MIC 3.  
!∞ MIC 4 fader knob  
Bass control knob  
Use to adjust the mixing level of MIC 4.  
Use to adjust low frequency among the sound from  
the MASTER OUTPUT or SPEAKER terminal.  
ST1 fader knob  
Use to adjust the mixing level of ST1.  
@™ TREBLE control knob  
A playback unit will be connected to it mainly.  
Use to adjust high frequency among the sound from  
the MASTER OUTPUT or SPEAKER terminal.  
ST2 fader knob  
Use to adjust the mixing level of ST2.  
BALANCE adjustment knob  
The sound signal of this channel is not output to the  
REC OUTPUT terminal; you can use without being  
bothered about oscillation from signal loop.  
Use to adjust the balance of left and right of the sound  
from the MASTER OUTPUT or SPEAKER terminal.  
Recorder/Player  
OUTPUT  
SRP-X351P  
INPUT  
ST2  
When  
recording  
Note  
×REC  
OUTPUT  
When the PROTECTION indicator lights up  
The protection circuit triggers and the PROTECTION indicator  
lights up in following conditions. In this case, the speaker and  
amplifier are protected by cutting output.  
INPUT  
Sound signal of  
except ST2  
MASTER  
• When direct-current voltage appears in the SPEAKER  
terminal from a malfunction.  
• When rated temperature of amplifier internal heat sink is  
exceeded.  
• When impedance of the connected speaker is too low, or  
when speaker outputs are shorted.  
!• ST3 Fader knob  
Use to adjust the level of the signal from AV equip-  
ment selected by the SELECT button stated in .  
When the above happens, turn off the POWER switch, find  
and fix the cause of the problem, and restart.  
5
 
Names and Functions  
Rear panel  
5
1
2
3
6
4
7
!¡  
8
9
!™!£ !¢  
!∞  
0
!§  
1 ANT IN (antenna input) A/B terminals  
Use to connect the antenna for wireless tuner. When  
installing the tuner unit, connect the optional UHF  
antenna WRU-801A/WRU-806A.  
3 REMOTE terminals  
CONTROL S input terminal  
Connect to the S output terminal of another equip-  
ment.  
When this terminal is plugged in, the sensor of this  
unit is not functioning.  
As these terminals output DC power of 9V for the  
booster inside of the connected antenna, connection of  
any antenna other than stated above may cause bad  
performance or a malfunction.  
Input signals are directly output from control S output  
terminal.  
(the max supply current is 20 mA)  
CONTROL S output terminal  
This terminal outputs the signal input from CON-  
TROL S input terminal or the sensor.  
Note  
Before locating and connecting the antenna, read carefully the  
instructions supplied with the antenna.  
Incorrect location of the antenna may cause a bad reception  
such as intermittent sounds. If it is not easy to relocate the  
antenna after location, check carefully if the performance will  
be satisfied with the location.  
Use the coaxial cable of impedance 50 ohms/75 ohms (5D-FB,  
5C-2V, etc.). The cable can be extended up to about 50 m with  
5D-FB, and up to about 25 m with 5C-2V.  
RS-232C (serial input/output) terminal  
Use to control this unit with a personal computer.  
Connecting to a computer  
Connect the computer to the RS-232C terminal of this  
unit with a cross cable.  
Terminal figure  
: D-sub 9 pin, male,  
inch type screw  
Electrical specification : Based on RS-232C standard  
Recommended cable : Plural leads shield cable for  
data communication  
2 Tuner unit slot (MIC1, MIC2)  
These are for installation of the optional 800MHz  
wireless tuner unit WRU-801A/ WRU-806A. Up to  
two units can be installed. (Refer to page 9 how to  
install.)  
Cable length  
: 15m or under  
1
5
6
9
Before installation, read carefully also the instructions  
of WRU-801A/ WRU-806A.  
Pin No.  
Signal  
Function  
1
2
3
4
5
6
7
8
9
N.C  
RD  
TD  
ER  
SG  
DR  
RS  
Not connected  
Received data  
Transmission data  
Data terminal ready  
Signal line grand  
Data set ready  
Transmission request  
Transmission approval  
Not connected  
CS  
N.C  
6
 
8 MIC input terminals (1:GND 2:HOT  
4 MASTER INSERT (Tip: output, Ring:  
3:COLD)  
input, Sleeve: GND)  
This is the input terminals for microphones.  
In MIC1 and MIC2, wireless microphone has priority  
while the tuner unit is used. (Refer to page 44.)  
These are input/output terminals for MASTER  
OUTPUT. An external equipment can be inserted  
before master volume.  
9 +48V button  
5 EMG input terminals  
This terminal receives signal from the emergency  
broadcast facilities and makes this unit be in standby.  
In this case, the EMG indicator on the front panel  
lights up.  
It supplies the Phantom power (DC+48V) to the MIC  
1 - 4 terminals for condenser microphones.  
When it is ON, DC+48V is output for the MIC  
terminals except for the MIC4 on the front panel.  
Select one of following two ways of connection as  
follows.  
Notes  
• Make sure to turn the MIC fader toward minimum before  
connecting or disconnecting any cable or turning the +48  
button to ON.  
• Make sure to connect a line equipment to ST1 to ST3 inputs.  
• When using a microphone powered by +48V and a dynamic  
microphone simultaneously, the dynamic microphone may  
not show its performance to the full.  
When using the BREAK CONTACT terminal  
Remove the short bar and connect the Relay of the  
emergency broadcast facilities. When the relay is  
contact is breaked, all AUDIO outputs of this unit will  
be cut off.  
When using the +24V IN terminal  
This terminal receives signals of DC24V from the  
emergency broadcast facilities.  
0 ST1/ST2 input terminals  
Use them for inputs from audio equipment.  
Connect a playback equipment mainly to ST1 and a  
record player to ST2.  
When DC24V is cut off, all AUDIO outputs of this  
unit will be cut off.  
Remove the short bar of the  
BREAK CONTACT terminal  
ST3 (AV) input terminals  
Use them for inputs from AV equipment.  
Each of input A to D is selected by the SELECT  
button on the front panel.  
(+24V IN)  
BREAK  
CONTACT  
!™ MASTER OUTPUT terminals  
Signal routed through the Master Volume are output  
here.  
Relay  
<- or ->  
REC OUTPUT terminals  
Signal not routed through the tone control (BASS,  
TREBLE), BALANCE and Master Volume are output  
here.  
(+24V output)  
Video signal is the same as for MASTER OUT signal.  
The emergency broadcast facilities  
6 CIRCUIT BREAKER  
When over-current flows into the unit, the circuit  
breaker cuts the power. In this case, remove the cause  
of over-current and reset the breaker by pressing  
RESET button.  
7 SPEAKER output terminals  
Connect with the speakers. Connect + of the speaker  
to the red terminal and - to the black terminal. Use  
the speaker of 4 to 16 impedance.  
7
 
Names and Functions  
Remote control  
ECHO SEND/RETURN terminals  
Connect effectors such as reverbrators and delay units  
to this terminal.  
A
C
B
D
SEND terminal  
1
This terminal outputs audio signals mixed by ECHO/  
AUX SEND knob of MIC1 to MIC4 and ST1 to ST3  
in monaural  
CD  
MD  
2
3
4
RETURN terminals  
DISC SKIP  
This is an input terminal for signal returned from the  
effector. When the ECHO RETURN switch on the  
front panel is set to ON, these are assigned to L and to  
R.  
TAPE DECK A  
TAPE DECK B  
Adjust the input level using effector's level controller.  
!∞ MIC GROUP and ASSIGN switch  
MIC GROUP OUTPUT terminal  
It outputs signal of which level is adjusted by MIC  
GROUP knob.  
MASTER  
VOLUME  
5
6
MUTING  
ASSIGN switch  
This is normally on.  
1 FUNCTION button  
When this switch is set to OFF, the microphone signal  
for MASTER OUTPUT and SPEAKER terminals are  
cut off.  
Use to select one of ST3 A to D input.  
2 CD deck operation buttons  
Using this, turn it OFF when a PA system with ceiling  
speakers and external power amplifier.  
Use to operate the Sony CD deck.  
3 MD deck operation buttons  
INSERT terminal (Tip: output, Ring: input, Sleeve:  
GND)  
Use it to connect an external graphic equalizer or a  
feedback reducer.  
Use to operate the Sony MD deck.  
4 TAPE deck operation buttons (A, B)  
Use to operate the Sony TAPE deck.  
5 MASTER VOLUME operation knob  
Use to adjust the master volume level.  
MODE switch  
It will be monaural when MASTER INSERT, MAS-  
TER OUTPUT and SPEAKER output are set to  
MONO.  
6 MUTING button  
Use to mute the output signal from MASTER OUT-  
PUT, MASTER INSERT, ECHO SEND, MIC  
GROUP OUTPUT or SPEAKER output terminals.  
Inserting batteries into the remote  
You can control this unit with using the supplied remote.  
Insert two R6 (size AA) batteries by matching the + and –  
on the batteries. When using the remote, point it at the  
remote sensor on the equipment.  
When to replace batteries  
With normal use, the batteries should last for about six  
months. When the remote no longer operates the equip-  
ment, replace all the batteries with new ones.  
Notes  
• Do not leave the remote near an extremely hot or humid  
place.  
• Do not drop any foreign object into the remote casing,  
particularly when replacing the batteries.  
• Do not expose the remote sensor to direct sunlight or lighting  
apparatuses. Doing so may cause a malfunction.  
• If you don't use the remote for an extended period of time,  
remove the batteries to avoid possible damage from battery  
leakage and corrosion.  
8
 
Installation of The Tuner Unit  
1
2
3
Turn off the power of this unit.  
4
Fix the tuner cover.  
After installation of the tuner unit, turn on the power  
of the unit and turn on the power of the wireless  
microphone to check it is receiving. While receiving,  
the RF/SIGNAL indicator lights up. Note that the RF/  
SIGNAL indicator will not light up when the setting  
channel of the microphone is different from the setting  
of the tuner unit, or when the microphone power is  
consumed.  
Remove the tuner cover.  
Check the up and down sides of the tuner unit, and  
insert it into the slot.  
The upper slot corresponds to MIC1 and the lower slot  
to MIC2. (Set the group and channel of the tuner unit  
to same as wireless microphone's one.)  
Insert it deeply into the compart-  
ment.  
Do not insert or remove the tuner  
unit while the power is on. This  
may be cause of noise or  
malfunction of the connector.  
NOTICE  
To prevent breakdown or injury, do not put your hand  
inside of the slot except when you install or remove the  
tuner unit.  
Tuner unit  
Tuner cover  
External Dimensions  
MIC1  
MIC2  
MIC3  
MIC4  
ST1  
ST2  
ST3  
ECHO RETURN  
CLIP  
PROTECTION  
EMG  
+45V  
ECHO/  
AUX SEND  
ØON øOFF  
MUTING  
MASTER VOLUME  
RF/  
SIGNAL  
RF/  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
SIGNAL  
ØON øOFF  
+10  
+5  
0
+10  
+10  
+5  
0
A
B
C
D
+5  
0
-5  
-5  
-5  
-15  
-25  
-15  
-25  
-15  
-25  
MIC GROUP  
BASS  
TREBLE  
BALANCE  
MIC4  
MIN  
MAX  
MIN  
MAX  
L
R
PLAYER  
PLAYER/RECORDER  
336  
482  
 U nit ; m m  
9
 
Block Diagrams  
10  
 
Main Specifications  
AUDIO INPUT/OUTPUT SPECIFICATIONS  
Name  
Connector Type Number of channels Standard input/output level Max input/output level  
Input/output impedance  
MIC IN (REAR)  
(FRONT)  
XLR-3-31  
4
-54dBu  
-24dBu  
2.2kΩ  
PHONE  
ST1 input  
Phono Jack  
Phono Jack  
Phono Jack  
Phono Jack  
Phono Jack  
Phono Jack  
Phono Jack  
Phono Jack  
Screw type  
binding terminal  
1(Stereo)  
1(Stereo)  
4(Stereo)  
1(Stereo)  
1
-10dBu  
-10dBu  
-10dBu  
-10dBu  
-10dBu  
-10dBu  
-5dBu  
+20dBu  
+20dBu  
+20dBu  
+10dBu  
+10dBu  
+10dBu  
+15dBu  
+10dBu  
20kΩ  
20kΩ  
20kΩ  
20kΩ  
470Ω  
470Ω  
470Ω  
470Ω  
ST2 input  
ST3 input(A,B,C,D)  
Echo return input  
Mic group output  
Echo send  
1
Master output  
Rec output  
1(Stereo)  
1(Stereo)  
1(Stereo)  
-10dBu  
Speakers output  
Rated output 125W + 125W (81kHz THD 0.1%)  
170W + 170W (41kHz THD 0.1%)  
VIDEO INPUT/OUTPUT SPECIFICATIONS  
ST3 input(A,B,C,D)  
(S-VIDEO)  
(VIDEO)  
Mini-DIN  
4
1Vp-p(Y)  
75Ω  
75Ω  
Phono Jack  
1Vp-p  
Master output  
Rec output  
(S-VIDEO)  
(VIDEO)  
Mini-DIN  
2
1Vp-p(Y)  
1Vp-p  
75Ω  
75Ω  
Phono Jack  
CONTROL TERMINAL SPECIFICATIONS  
RS-232C terminal  
CONTROL-S input  
CONTROL-S output  
EMG CONTROL  
D-sub 9 male  
1
1
1
1
7 function is controled  
φ
φ
3.5 jack  
3.5 jack  
Through out from input  
Screw type  
terminal  
Break contact, 24V signal control (Active "break")  
OTHER TERMINALS  
Antenna in  
BNC  
2
DC 9V out  
20mA max  
+48Vphantom power  
Power supply for MIC 1 to 4 XLR terminals only  
ELECTRICAL CHARACTERISTICS  
ITEM  
MEASUREMENT CONDITIONS  
STANDARD  
Frequency characteristics  
Total harmonic distortion  
20 to 20kHz, 1kHz reference, master output  
MIC IN-Master output, 1kHz -54dBu input  
ST input -Master output, 1kHz -10dBu input  
MIC IN input, 150termination, IHF-A  
ST input, input short, IHF-A  
+0.5, -1dB  
less than 0.05%  
less than 0.01%  
less than -126dBu  
more than 85dB  
less than 100µV  
less than -60dB  
less than -80dB  
-12dB/oct  
Input conversion noise level  
S/N ratio  
Rasidual noise level  
Crosstalk  
Master volume 0, IHF-A, Speaker output  
1kHz, between L-R channels  
1kHz, between input channels  
MIC L.C.F fc=100Hz  
TONE  
TREBLE 10kHz (shelving type)  
BASS 60Hz (peaking type)  
±12dB  
±12dB  
Frequency characteristics  
Crosstalk  
50 to 10MHz, reference 3.58MHz  
3.58MHz, 1Vp-p  
+0.5dB, -1dB  
less than -50dB  
more than 65dB  
+0.5dB, -1dB  
less than -50dB  
more than 65dB  
S/N ratio  
100kHz, H.P.F, 5MHz, L.P.F  
50 to 10MHz, reference 3.58MHz  
3.58MHz, 1Vp-p  
Frequency characteristics  
Crosstalk  
S/N ratio  
100kHz, H.P.F, 5MHz, L.P.F  
Power requirment  
AC 230V 50/60Hz  
Operating temp.  
Storage temp.  
0°C to 40°C  
-20°C to 60°C  
Operating instructions (1)  
Remote control (SRP-351RM) (1)  
Battery R6 SIZE AA (2)  
Power consumption  
Dimensions  
400W  
482 × 132 × 350 (width/height/depth) mm  
not includeing max protrusion  
15kg  
Suplied accessories  
Weight  
11  
 
Troubleshooting  
Power will not turned on.  
• Is the power cord unplugged?  
• Is the curcuit breaker working? (See page 7.)  
No sound.  
• Does the EMG indicator turn off? (See pages 4 and 7.)  
• Does the PROTECTION indicator turn off? (See page 4.)  
No sound is output to MASTER OUTPUT  
or SPEAKER terminals from microphone.  
• Has the ASSIGN switch been set to OFF? (See page 8.)  
• Has the MIC GROUP knob been set to –? (See page 5.)  
No sound from wireless microphone.  
• Is the channels of microphone and tuner unit matching?  
And does the RF/SIGNAL indicator light on when the microphone  
is turned on? (See page 9.)  
• Is the antenna connected correctly?  
Sound is heard in monaural.  
Sound is distorted.  
Has the MODE switch been set to STEREO? (See page 8.)  
Is the CLIP indicator lighting on? (See page 4.)  
No sound from MIC4.  
Has another microphone been connected to MIC4 terminal  
on the front panel?(See page 4.)  
Wireless remote control does not function.  
Signal of the ST2 can not be recorded.  
• Has a plug been connected to CONTROL-S input terminal  
on the rear panel?(See page 6.)  
• Are the remote control batteries dead?(See page 8.)  
Signal from ST2 does not output to REC OUTPUT. (See page 5.)  
Printed in Japan  
 

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