CIRCUIT BOARD LAYOUT
Top View |
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AC Cord
MAIN 2/2
Power Transformer
MAIN 2/2
MAIN 1/2
MAIN 1/2
Front View
MAIN 1/2
BLOCK DIAGRAM
MAIN 1/2
GAIN SELECT
PASSIVE CH. | ACTIVE CH. |
AUX IN
SW2
INPUT
JK1
+12V
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| +12V |
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| 8 |
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ACTIVE TYPE | 2 | 1 5 | 7 |
TONE CONTROL | IC3 | IC3 |
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| 4 |
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IC1,IC2 | OP AMP | VOLUME | |
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| VR1 | |
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JK3
8
3 1 IC1
4
POWER SWITCH
FUSE
T1
SW1 | FZ1 |
| T2 |
VR5 | VR4 | VR3 | VR2 |
BASS | LOW MID | HIGH MID | TREBLE |
CN4 5P
CN5 5P
POWER
AMP
PHONE
CN1 2P
U, C, S, BS
CN2 4P
CN3 3P
T1
G
T2
POWER TRANSFORMERPOWER SUPPLY CIRCUIT
GND
+B
+12V
JK2
T3
4Ω Speaker
T4
4