A
1
2
3
5
B
C
D
E
F
G
H
DTA-9.4
DTA-9.4
Q303
10.4dB
INPUT
Q301
10.4dB
Q301
10.4dB
2
3
2
1
3
Hot
Cold
Q302
0dB
RCA
XLR
XLR
RCA
Q303
0dB
XLR Type
RCA Type
Q302
0dB
2
6
LPF
(6.7dB)
+3V
+3V
Q405-Q408
LPF
Q507-Q510
(7.4dB)
Q507-Q510
(7.4dB)
+7V
+7V
+B+(27V)
-B
RL501
RL501
+B
-B(+27V)
RL502
RL502
Q716
70kHz LPF
70kHz LPF
SPEAKER
OUTPUT
Q709
R710 (PTC Themistor)
Q701
Q704
Q717
Q751, Q752
+5V
Temperature or
Current
Warning indicator
D751
Q580, Q581
RL901
C909-C912
T901
D101 - D104
C103-C106
Bus plate
Bus plate
Bus plate
Full Bridge Type
High-Brid Type
(PFM & PWM)
D902 Triac
D903-D906
D941-D944
Q843-Q845
D901
Q848
Q841,Q842
+5V
+5V
Q881-Q884 FET
Q869-Q876
Q817
F901
12A/250V
F901
1A/125V
POWER
T9801
RL701
Q708,Q715
+5V
DC Output
Warning
D705
Q9801,Q9802
Q9821,9820
-27V
Q717
D9801-D9804
Q711
Q9810,Q9811
Q9808
Q9806
Q9813-Q9815
Q9832-Q9833
Q9804
Q9822
+B (+27V)
GND
-B (-27V)
+12V
+5V
P9910
12V TRIGGER
CONTROL LINK IN
Q9812
D9812
D9813
Power
(Blue)
Standby/Warning
(Red)
U15: NAAF-7797
POWER AMPLIFIER PC BOARD
U16: NAAF-7798
TEMPERATURE SENSOR
PC BOARD
U16: NAPS-7792
TRIGGER TERMINAL PC BOARD
U8: NAETC-7794
DISPLAY LED PC BOARD
U7: NAPS-7793
CONTROL PC BOARD
U5: NAPS-7790
SWITCHING CONTROL
PC BOARD
U1: NAPS-7788
PRIMARY POWER SUPPLY
PC BOARD
T902
U2: NAPS-7788
SECONDARY POWER SUPPLY
PC BOARD
Q701
BLOCK DIAGRAMS
Smoothing
Capacitor
Resonance
Circuit
Switching
circuit
Start Circuit
NFB
DC Offset
Detection
Line Filter
PWM
Modurator
MOS FET
Driver
MOS FET
Driver
Over Current
Detection
MOS FET Temperature
Detection Cuircuit
Detection
Circuit
Current Protection
and
Temperature protection
Circuit
Error amplififer
Circuit of
Output voltage
Smoothing
Coil
Output
Capacitor Arrey
MOS FET
Relay Driver
High-Frequency
Transformer
High-Speed
Rectifer Diode
Control circuit
Start,Stop
Muting Circuit
Sub Transformer
Power Relay
Control circuit
MOS FET
Muting Circuit
Sreaker Output Relay
Control Circuit
Reset IC
Multi Vibrator
Rectifier Circuit
Reset
12V Trigger/
Cotrol Link
Detection Circuit
LED Driver
Constant Voltage
Power Supply
Constant Voltage
Power Supply
Constant Voltage
Power Supply
Inrush current
Prevention Circiuit
Rectifier Circuit
Speaker Output
Relay Driver
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