Mackie HR624 MK2 HR624 MK2 Block Diagram

HR624 MK2

HR624 MK2 Block Diagram

	+15VDC	POWER
		MODE
Vref	ON	SWITCH	MUTE
	AUTO			MUTE
			ON/OFF
	STANDBY	HIGH = MUTE OFF
			CONTROL
		LOW = MUTE ON
SIGNAL	THERMAL
SENSE
		SWITCH
		LOW AC		POWER RING
	VOLTS SENSE
				(POWER = WHITE
				OVERLOAD = RED)
	POWER SWITCH
	(FRONT PANEL)

UNBALANCED			HF OUT	HF TRANSDUCER	HI-FREQUENCY		HI-FREQUENCY
				THERMAL MODELER		HF OUT	DRIVER
LINE					POWER AMPLIFIER
		HIGH FREQ.
INPUT					CROSSOVER
			+2 dB
	2				HI-FREQ		TWEET
1			0	COMPRESSOR	LO-FREQ
BALANCED	3		–2 dB
	SENSITIVITY
LINE
INPUTS	SENSITIVE			LF TRANSDUCER		MUTE
			LF OUT
				THERMAL MODELER
	CALLOUS
	ACOUSTIC		LOW FREQ		LO-FREQUENCY		LO-FREQUENCY
	SPACE			49Hz (NORMAL)		LF OUT	DRIVER
	WHOLE				POWER AMPLIFIER
	HALF
	QUARTER			80Hz			WOOF
	OUTER SPACE
					MOTION DETECTOR	MUTE
		FUSE			BASS CONTROL SERVO LOOP
	120V ↔ 240V						SENSE
				+			RESISTOR
		FUSE		–HI VDC
			TOROIDAL POWER		+
MACKIE					–LO VDC
			TRANSFORMER
HR624 MK2
BLOCK DIAGRAM
(030507)

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This manual also contains names and marks of other companies which belong to those respective companies, and are hereby acknowledged.

HR624 MK2 design protected under the following patent: DES. 387,351

©2007-2011 LOUD Technologies Inc. All Rights Reserved.

18 HR624 MK2