BT220H
Bass Amplifier
7
System Block Diagram:
BUFFER
INPUT
-15dB PAD
LEVEL
LOW
LOW
MID
HIGH
MID
HIGH
CHANNEL
SWITCH
PRE
LIMIT
POST
MUTE
EQ
NOISE
GATE
GAIN
DISTORTION
LEVEL
TUNER
A BC D EF G
SHAPE
LEVEL
OCTAVE
MASTER
BALANCED
LINE OUT
VOLUME
BALANCED
LINE OUT
GND/
GND
LIFT
EFFECTS
BLEND
EXTERNAL
SPEAKER
EXTERNAL
SPEAKER
SEND
HEAD
PHONES
POWER
AMP
ATTENUATOR
PREAMP
OUT
POWER
AMP IN
RETURN
CD
INPUT
EFFECTS LOOP
FOOT
SWITCH
SWITCHING
CIRCUITRY
