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Muting 

The last two(2) terminals on the barrier strip are for muting. Channels 2 and 3 are muted when the two 
mute contacts are shorted together. The muting is done by a FET switch so there is no ramping. An optional 
VOX muting module (TX3010) is also available with has ramping. 
 

Phantom Power 

The IC30 does not have phantom power on the XLR’s. 
 

Tape Output 

 
A mono RCA output connector provides a line level output with a maximum of 350mV into 10k Ohms. 
Signal from all three input channels are fed to the tape output. Level adjustments made to the three input 
channels will affect the level going to the tape output. 
 
Microphone/Line Inputs 
Three universal microphone/line inputs are provided. Microphone inputs are via the 3 pin XLR connectors 
while line inputs are via the RCA style connectors (one of each is provided per channel). All three inputs 
can be used for microphone and auxiliary input sources. It is also possible to connect both a microphone 
and line/aux source to the one channel simultaneously however their relative levels to one another will be 
fixed, as there is only one gain control per channel. 
The XLR connectors are wired: Pin 1: Earth. Pin 2: Active (high, +), Pin 3: Active (low, -). Microphone 
input sensitivity is 1.5mV at 200 ohms. 
The RCA connectors have an input sensitivity of 80mV at 47K ohms. 
 

Microphone Inputs 

All three(3) inputs are dual mic/line with microphone inputs being via a 3 pin XLR connector per channel. 
The mic input sensitivity is 1.5mV @ 200 ohms. Pin connections are: pin 1-earth; pin 2-signal (hot +); pin 
3-signal (cold -). Phantom power is not available. Reading from left to right across the rear panel, the inputs 
are 3, 2, & 1. 
 

Line Inputs 

All three(3) inputs are dual mic/line with line/auxiliary inputs being via mono RCA connectors per channel. 
Line input sensitivity is 75mV @ 47K ohms. Reading from left to right across the rear panel, the inputs are  
3, 2, & 1.  
 

Optional Accessories 

 

Tone Generators 

Four separate tones are available as an optional plug in card (ATC5488). The ATC5488 is a small circuit 
board which simply plugs into a socket inside the amplifier. Activation is via contact closures which may 
be wired to the rear panel of the IC30 or to external switches or a timer. Full installation instructions are 
provided with the tone generator. 
Tones available on the ATC5488 tone generator board are: 
Evacuation Tone (to Australian Standard AS2220.1.2) 
Alert Tone (to Australian Standard AS2220.1.2) 
Bell TonePre Announce Chime 
 

VOX Muting Module 

An optional VOX muting module (TX3010) is available. When installed inside the amplifier, signal on 
channel 1 of the amplifier will automatcially mute channels 2 and 3. When there is no signal on channel 1, 
channels 2 and 3 will operate normally. Full installation instructions are provided with the TX3010. 
 

Содержание IC30

Страница 1: ...de Street Silverwater NSW 2128 Australia 61 2 9647 1411 www australianmonitor com au SERVICE INFORMATION AUDIO TELEX IC30 MIXER AMPLIFIER CONTENTS OPERATION MANUAL SCHEMATIC DIAGRAMS BOARD OVERLAY PARTS LISTING TEST PROCEDURE ...

Страница 2: ...power on or off in DC operation In this mode the amplifier is always on When running from 12 VDC power the LED will not illuminate There is no trickle charge resistor across the diode 230V 240V Slide Switch The operating voltage of the amplifier is user selectable between 230V and 240V via a slide switch located on the top left side of the rear panel This switch should be set to match the AC volta...

Страница 3: ...ity of 80mV at 47K ohms Microphone Inputs All three 3 inputs are dual mic line with microphone inputs being via a 3 pin XLR connector per channel The mic input sensitivity is 1 5mV 200 ohms Pin connections are pin 1 earth pin 2 signal hot pin 3 signal cold Phantom power is not available Reading from left to right across the rear panel the inputs are 3 2 1 Line Inputs All three 3 inputs are dual mi...

Страница 4: ...t board This is a feature of the AMIS series amplifiers which are equipped with a current limiting circuit preventing excessive DC currents thus eliminating the risk of blowing high tension fuses In the unlikely event that the DC fuse actuates the output IC modules should be checked as it is probable that the amplifier has been subjected to very extreme conditions The DC fuses are 4A time lag fuse...

Страница 5: ...1 D2 D5 P1 X7 T2 R38 10R R37 1K R36 1K R29 10K R28 0R R27 47K R26 1K 5 6 7 IC2B LM1458 C27 1u C26 1u C25 100P C23 1u C22 1u C24 1u C14 1u R16 100R R17 10K 4 3 5 IC3C 4066 1 2 13 IC3A 4066 R25 47K 3 2 1 8 4 IC2A LM1458 C21 1u C20 330P C19 1u C18 330P C17 1u C16 1u C15 1u R24 4K7 R23 22K R22 10R R21 22K R20 680R R19 680R R18 47k R9 47k R10 680R R11 680R R12 22K R13 22K R14 4K7 C8 1u C9 1u C10 1u C11...

Страница 6: ... D5 P1 X7 T2 R38 10R R37 1K R36 1K R29 10K R28 0R R27 47K R26 1K 5 6 7 IC2B LM1458 C27 1u C26 1u C25 100P C23 1u C22 1u C24 1u C14 1u R16 100R R17 10K 4 3 5 IC3C 4066 1 2 13 IC3A 4066 R25 47K 3 2 1 8 4 IC2A LM1458 C21 1u C20 330P C19 1u C18 330P C17 1u C16 1u C15 1u R24 4K7 R23 22K R22 10R R21 22K R20 680R R19 680R R18 47k R9 47k R10 680R R11 680R R12 22K R13 22K R14 4K7 C8 1u C9 1u C10 1u C11 330...

Страница 7: ......

Страница 8: ...0010 C30 0 47 Metalised Poly Capacitor 2124262472 C31 0 47 Electrolytic capacitor 63V 2124262472 C32 47u Electrolytic capacitor 35V 2121230470 C33 47u Electrolytic capacitor 35V 2121230470 C34 47u Electrolytic capacitor 35V 2121230470 C35 47u Electrolytic capacitor 35V 2121230470 C36 82P Multi layer ceramic capacitor 100V 2127181820 C37 1u Electrolytic capacitor 63V 2121280010 C38 2200u Electrolyt...

Страница 9: ...23 R24 4K7 Resistor metalfilm 5W 9111590472 R25 50K Potentiometer linear 2021000503 R26 1K Resistor metalfilm 5W 9111590102 R27 47K Resistor metalfilm 5W 9111590473 R28 0R Resistor metalfilm 5W 9111590000 R29 10K Resistor metalfilm 5W 9111590103 R3 680R Resistor metalfilm 5W 9111590681 R30 10K Resistor metalfilm 5W 9111590103 R31 6K8 Resistor metalfilm 5W 9111590682 R32 10K Resistor metalfilm 5W 9...

Страница 10: ...R7 4K7 Resistor metalfilm 5W 9111590472 R8 50K Potentiometer linear 2021000503 R9 47k Resistor metalfilm 5W 9111590473 S1 Rocker switch SPST 2511213112 ...

Страница 11: ...er switch and adjust voltage to 120VAC Watch current meter for excess current draw 3 2 Check DC power supply at fuse Should be approximately 7V 1V 3 3 Check DC voltage on mixer board Should be approximately 6V Check on 8 No Pin of 1458 3 4 Adjust variac to 240VAC Check DC power supply Should be approx 15V 1V loaded no load 16 5V 1V 3 5 Check DC voltage on mixer board Should be approx 11V 1V 4 AC C...

Страница 12: ...sponse and power bandwidth of 1st set of every new batch of production Frequency Response 250Hz 10kHz Power band 250Hz 6 5kHz 7 Finishing up Final stage 7 1 Short output and check that signal cuts out and returns after short is removed 7 2 Remove input signal and check for Hum and Noise 20m Vrms 7 3 Connect 12V DC to rear barrier strip turn off power switch Check signal remains 7 4 Reset volumes t...

Страница 13: ...er switch and adjust voltage to 230VAC Watch current meter for excess current draw 3 2 Check DC power supply at fuse Should be approximately 7V 1V 3 3 Check DC voltage on mixer board Should be approximately 6V Check on 8 No Pin of 1458 3 4 Adjust variac to 240VAC Check DC power supply Should be approx 15V 1V loaded no load 16 5V 1V 3 5 Check DC voltage on mixer board Should be approx 11V 1V 4 AC C...

Страница 14: ...sponse and power bandwidth of 1st set of every new batch of production Frequency Response 250Hz 10kHz Power band 250Hz 6 5kHz 7 Finishing up Final stage 7 1 Short output and check that signal cuts out and returns after short is removed 7 2 Remove input signal and check for Hum and Noise 20m Vrms 7 3 Connect 12V DC to rear barrier strip turn off power switch Check signal remains 7 4 Reset volumes t...

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