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Australian Monitor

1 Clyde 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

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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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