Dynacord DPM 4000 manual Block Diagram

DEVICE DESCRIPTIONS

Block Diagram:

	AUX 1				+24V
L					+12V
	GAIN					ANALOG
AUX 1						SUPPLY
					-12V
		AUX 1
R					+5V	DIGITAL
						SUPPLY
IN A					INTERNAL MONITOR
	AUX 2
L		MON A
	GAIN
AUX 2					PILOT
		AUX 2
R		A			MCLK
					BCLK	2 CHANNEL
					WCLK	DIGITAL
		D				AUDIO
		PILOT A			DIN
		MON B
				4	SPI
			BOARD
		PILOT B	CONTROL
L	AUX 3
	GAIN
AUX 3					RES
		AUX 3
R
			BOARD
			STATUS
IN B			& ID
L	AUX 4
	GAIN
AUX 4
		AUX 4
R

figure 5.20 block diagram 2-channel AUX input module

Internal Settings:

AUX input sensitivity setting

Using trimmers VR1 (AUX 1), VR2 (AUX 2), VR3 (AUX 3) and VR4 (AUX 4), adjusting input levels is possible in a range between -10 dBu and +12 dBu. The trim-potentiometers' coarse scales are meant for your convenience, helping you in adjusting the levels.

Potentiometer setting	Input level
Left margin	+12 dBu
Center position	-3 dBu
right margin	-10 dBu

figure 5.21 internal settings, location of parts (NRS 90228)

5-18 PROANNOUNCE System User Handbook 1.1