DC SERVO
MOTOR 1
ROTARY
HORN
HORN
DRIVER
SPEAKER
15"WOOFER
DC SERVO
MOTOR 2
DRUM
ROTOR
2.BLOCK DIAGRAM
#3300P, #3300WP
#3300P
#3300WP
POWER SUPPLY
& POWER AMP
TUBE PREAMP
PWH-74C
PAH-74B
CTH-37A
LGH-43A
LGH-43A
CONTROL PANEL
Power SW PANEL
Power SW
PANEL
MOTOR SPEED
CONTROLLER
MOTOR
DRIVER 1
MOTOR
DRIVER 2
LINE IN
SUB WOOFER
/ LINE OUT
Stationary-L OUT
Stationary-R OUT
POWER
TRANS
EPH-123
SLOW/FAST/STOP
FOOT SW
REMOTE
POWER ON
RELAY
1 - Rotary sig. IN
2 - Stationary-L IN
3 - Stationary-R IN
4 - Audio GND
5 - Control GND
6 - Power ON
7 - LES.FAST
8 - LES.SLOW
11- +15V OUT
Rotary SIG
SLOW / FAST
S/F
8P
IN
R
O
T
S
IG
+24V
P.S.
+24V
P.S.
+15V
+15V
-15V
80W HORN
POWER AMP
220W BTL
POWER AMP
+37V TUBE P.S.
HORN SIG
BASS SIG
+15V
-15V
+15V
-15V
EPH-122 SUB TRANS
for POWER RELAY
AC INLET
POWER
SWITCH
J110
J106
J107
J109
J108
J112
C
N
3
CN
2
CN
1
CN
1
CN
2
CN
3
LESLIE 11PIN
LESLIE 8PIN
FAST SLOW STOP
SPEED IND. LED
1
11
10
9
8
7
6
5
4
3
2
POWER ON
J
303
J
302
J1
0
1
J1
1
1
J1
0
3
J
102
J
301
Voltage
Select
Plug
Primary
IC1A
MIX AMP
IC1B
Tube Drive
Level
VOLUME
Tube MODE
SUB
WOOFER
VOLUME
HORN
LEVEL
JK3
JK4
JK2
JK1
Tube 12AX7
HPF
LPF
LPF
BASS
MID
TREBLE
3BAND
EQ
IC3B
U1
U6,Q5 Thermo Sensor
U2
IC2
LED1
LED2
LED3
IC3C
IC3A,D
U2 HORN/DRUM
Speed, Rise & Fall
Time Control
U1 CPU
Motor Control
J201
J
205
Cooling Fan
J2
0
2
J
104
