Shure AUDIOMASTER 1200 Скачать руководство пользователя

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Price $7.50

Model 1200 Powermixer

SERVICE MANUAL

ISSUE NO. 1

Manufactured by

SHURE BROTHERS INC.

222 Hartrey Avenue

Evanston, Illinois 60202-3696

Printed in U.S.A.

Содержание AUDIOMASTER 1200

Страница 1: ...7 50 Model 1200 Powermixer SERVICE MANUAL ISSUE NO 1 Manufactured by SHURE BROTHERS INC 222 Hartrey Avenue Evanston Illinois 60202 3696 Copyright 1988 Shure Brothers Inc AL954 HE 27A8187 Printed in U...

Страница 2: ...to 30 2 to 63 V PA INPUT 1 dBV 891 mV Voltage Gain at 1 kHz INPUT OUTPUT SPEAKER PGM MIX MONITOR PHONES TAPE LO Z 95 dB 65 dB 71 dB 82 dB 51 dB HI Z 73 dB 43 dB 49 dB 60 dB 29 dB AUX 55 dB 25 dB 31 d...

Страница 3: ...ent 6 SHR 12 Temperature Sensor Board 6 VR1201 Temperature Sensor Threshold 6 SHR 14 Main Board 6 VR1401 Power Amplifier Limiter Threshold 7 Rear Panel Boards and Components 7 SHR 10 Input Output Boar...

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Страница 5: ...l has color coded knobs for ease of adjustments while LED indicators give instant notice of The 1200 is rack mountable or portable Its 6 inputs are expandable to 8 or 10 inputs through the use of A120...

Страница 6: ...Powermixer is dead no output POWER LED off PROBABLE CAUSE AND CORRECTION 1 Check that ac power source is live and Model 1200 is plugged in 2 Check that POWER switch is on 3 Check that rear panel fuse...

Страница 7: ...verb Return full counterclockwise and Eq controls centered Turn the unit on and apply a 0 5 mV 1 kHz test signal across pins 2 and 3 of one of the Bal Lo Z input connectors Normal voltmeter readings t...

Страница 8: ...Push on connectors must be removed by pulling straight out The side of a small screw driver blade inserted between the free and fixed connector can sometimes be helpful in separating the connector Do...

Страница 9: ...reverb Output Use the previously removed screws to secure the reverb pan to the reverb shield and to secure the shield to the chassis bottom and the parallel vertical interior shield Be sure to repla...

Страница 10: ...12 from the large heat sink remove the Power Amplifier Board Assembly from the 1200 as described above Then remove the two Phillips screws that hold SHR 12 to the small vertical heat sink When replac...

Страница 11: ...onnectors from AA AB BA and BB to P201 and P202 of SHR 02 and from AC AD BC and BD to P102 and P104 of SHR 01 Remove the four Phillips screws that hold the switches to the rear panel SHR 03 can be com...

Страница 12: ...the nuts holding the control shafts to the Mounting Panel 3 To free the board pull the shafts back out of the panel SHR 06 HEADPHONES OUTPUT BOARD AND SHR 07 HEAD PHONES CONTROL BOARD SHR 06 and SHR 0...

Страница 13: ...High High Emitter Collector High High Collector Base High Low Emitter Base High Low Base Collector Low High Base Emitter Low High FERRITE BEADS All low impedance microphone connectors contain ferrite...

Страница 14: ...713373FK 784104FK 784108FK 802625FK 788427FK 802579FK 802580FK 802581FK 802582FK Reverb Pan Fan DESCRIPTION Capacitor Electrolytic 0 22 F 50 V Nichicon UKB1HR22KAA Capacitor Electrolytic 22 F 16 V Nic...

Страница 15: ...NPN RCA SK9427 Transistor Dual FET Transistor Power PNP RCA SK9042 requires 802681FK insulator Transistor NPN Transistor NPN RCA SK9118 Transistor Power NPN requires 802639FK insulator Transistor PNP...

Страница 16: ...r 2 2 M Resistor 15 K Resistor 51 K 2 Resistor 56 K Resistor 1 5 K Resistor 470 Resistor Metal Film 100 K 1 Resistor Metal Film 36 K 1 Resistor Metal Oxide Film 39 1 2 W Resistor Metal Oxide Film 47 2...

Страница 17: ...BLOCK DIAGRAM...

Страница 18: ...LEAD CODES...

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Страница 25: ...21 CIRCUIT DIAGRAM 1 SHR 01 SHR 02 SHR 03 SHR 04...

Страница 26: ...22 CIRCUIT DIAGRAM 2 SHR 05 SHR 07 SHR 08 SHR 10...

Страница 27: ...CIRCUIT DIAGRAM 3 SHR 09 SHR 12 SHR 14 23...

Страница 28: ...CIRCUIT DIAGRAM 4 SHR 06 SHR 11 SHR 13 SHR 14 24...

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