Crown Audio STUDIO AMPLIFIER owner manual Page, 1 Circuit Block Diagram, Inputs, Output

Page 25

Fig. 5.1 Circuit Block Diagram

XLR

BALANCEDP.I.P.

INPUTS

1/4" PHONE

							+Vcc
					+Vcc			A
			TRANSLATOR		LVA			(ODEP)
						NPN HI		NPN LOW
						OUTPUT		OUTPUT
BALANCE	VARIABLE		ERROR			STAGE		STAGE
										+Vcc
INPUT STAGE	GAIN STAGE		AMP
			ODEP	A	BIAS	CURRENT	OUTPUT
				B					BIAS
						LIMIT	+
				C		(DISPLAY)		(DISPLAY)
						D	C	E
									BRIDGE
							(ODEP)			–Vcc
						PNP HI		PNP LOW	BALANCE
						OUTPUT		OUTPUT
						STAGE	HS	STAGE
							TEMP
DISPLAY		D	TRANSLATOR		LVA
		E						B
					–Vcc			(ODEP)
							–Vcc

ONLY ONE CHANNEL SHOWN

	ENABLE	+24	+Vcc
	TIMER
POWER	DC/ LF	POWER
SUPPLY
CONTROL	OVER	SUPPLY
	VOLTAGE
	FAULT	–24	–Vcc

Studio Reference I & II Professional Studio Amplifiers