Crown Audio Principles of Operation, CE2000TX Power Amplifier, Operation Manual, page, Balance

CE2000TX Power Amplifier

6 Principles of Operation

+HI-VOLTAGE BOOTSTRAP

Figure 6.1

CE 2000TX

Amplifier Block

Diagram BALANCED

(Shown with INPUTS Standard Input

Module)

TO CLIP	COMPRESSOR
INDICATOR	CONTROL

				TRANSLATOR
BALANCE	VARIABLE	BUFFER	ERROR
			AMP
	GAIN STAGE			–VCC
INPUT STAGE

TO SIGNAL

PRESENCE

INDICATOR

DC PROTECT

LOGIC

TO

FAULT

CONNECTOR

				TURN-ON
				DELAY
CURRENT
SOURCE	TRIPLE-DEEP	HEATSINK
	DARLINGTON	TEMPERATURE
	NPN POSITIVE
	OUTPUT STAGE			+
	TDVI		OUTPUT
BIAS			CONTROL
	LIMITER
				OUTPUT
	TRIPLE-DEEP
			DC
	DARLINGTON
LVA	NPN NEGATIVE		PROTECT
	OUTPUT STAGE
–VCC	HEATSINK	TRANSFORMER		TO FAULT
	TEMPERATURE
		TEMPERATURE		INDICATOR
	PROPORTIONAL		+ VCC
	SPEED	POWER
			+ 15V
	FAN
	CONTROL	SUPPLY	– 15V
			– VCC
	FAN		BOOTSTRAP	+ HI-VOLTAGE
			CIRCUIT	BOOTSTRAP

MUTE

Operation Manual page 21