Crate Amplifiers BT220H manual System Block Diagram

BT220H Bass Amplifier

System Block Diagram:

INPUT

BUFFER

-15dB PAD

OCTAVE

LEVEL

TUNER
A BC D EF G	FOOT		SWITCHING
	SWITCH		CIRCUITRY
		EQ
LEVEL	LOW LOW	HIGH	HIGH	CHANNEL
	MID	MID		SWITCH
	NOISE
	GATE

SHAPE

DISTORTION

LEVEL

GAIN

EFFECTS LOOP

SEND

MUTE

MASTER

CD

INPUT

RETURN

EFFECTS

BLEND

BALANCED		PRE
LINE OUT		POST
	BALANCED
GND/	LINE OUT
	VOLUME
GND
LIFT

LIMIT

POWER

AMP

POWER AMP IN

ATTENUATOR

PREAMP OUT

EXTERNAL

SPEAKER

EXTERNAL

SPEAKER

HEAD

PHONES

7