BT220 Bass Amplifier
System Block Diagram:
INPUT
OCTAVE
LEVEL
TUNER | FOOT | SWITCHING |
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A BC D EF G | SWITCH | CIRCUITRY |
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BUFFER |
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| EQ |
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LEVEL | LOW | LOW | HIGH | HIGH | CHANNEL | |
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| MID | MID |
| SWITCH |
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| NOISE |
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| GATE |
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| DISTORTION |
| SHAPE |
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| LEVEL | |
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| GAIN |
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| EFFECTS LOOP |
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| SEND | RETURN | EFFECTS |
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MUTE |
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| BLEND |
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| MASTER |
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CD |
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INPUT |
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BALANCED |
| PRE | LIMIT |
LINE OUT |
| POST |
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| BALANCED |
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| POWER | |
GND/ | LINE OUT |
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VOLUME |
| AMP | |
GND |
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LIFT |
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ATTENUATOR
SPEAKER
EXTERNAL
SPEAKER
HEAD
PHONES
7
