Specifications
TX6n/5n/4n Owner’s Manual
18
Block Diagram
1+
2+
1–
2–
1+
2+
1–
2–
Current
Sensor
Po
wer
Amplifier
Stage
Vol
tage
Amplifier
Stage
Di
fferenti
al
Amplifier
Stage
Di
fferenti
al
Amplifier
Stage
MAIN TRANSFORMER CHA
FG
FAN(L)
PowerSW
PHASE SHIFT SWITCHING
+B
_
2
–B
_
2
+E
_
2+15V
–E
_
2
–E+2+15V
+E
_
2
–15A
+5D
+3.3D
+5A
+15A
AGND
DGND
+24A
_
A
SUB TRANSFORMER
–5A
+B
_
1
–B
_
1
+E
_
1+15V
–E
_
1
–E
_
1+15V
+E
_
1
MAIN TRANSFORMER CHB
FAN(R)
OUTPUT
(SPEAKERS)
FB
+B
_
1
+E
_
1+15
+E
_
1
–E
_
1+15
–E
_
1
–B
_
1
To
tal G
a
in
: +37dB
To
tal G
a
in
: +37dB
PGND
_
1
CH B
CH A
AC VOLTAGE
DETECT
VOLTAGE
SENCE
+15VA
+15VA
+15VA
PGND
_
1
FAN CONTROL
CIRCUIT
FAN CONTROL
CIRCUIT
PGND
_
2
PSW
DETECT
+5VA
+3.3VD
–15VA
–5VA
LCD M
o
d
u
le
SENS
E_
U
SENSE_
I
A/D
Vol
u
m
e
Control
D/A
Vol
u
m
e
Control
CPU
ANALOG AUDIO
FG
ANALOG AUDIO INPUTs
[+24dBu] MAX
ANALOG AUDIO Signals
[+13.2dBu] MAX
GAIN
–10.8dB
GAIN
–10.8dB
Channel B
Channel A
BA
Negative
Feedback
Loop
Net
w
ork
Negative
Feedback
Loop
Net
w
ork
Cur
rent
Sensing
Volt
a
g
e
Limitter
Volt
a
g
e
Limitter
EEEngine
EEEngine
ASO
Limitter
Tempe
rat
ure
senso
r
Tempe
rat
ure
senso
r
+B
_
2
+E
_
2+15
+E
_
2
–E
_
2
+15
–E
_
2
–B
_
2
PGND
_
2
Vo
ltage
Senso
r
Current
Sensor
Vo
ltage
Senso
r
BA
Power
Amplifier
St
age
Voltage
Amplifier
St
age
FB
EEEngine(–B)
EEB)
Volt
a
g
e
Limitter
Volt
a
g
e
Limitter
Current
Sensing
ASO
Limitter
Protection
Relay
Protection
Relay
Clip
Detecto
r
Clip
Detecto
r
DIT
IN
OUT
THRU
DIR
+90
°
C
PS HEAT SINK
PS HEAT SINK
150Apeak
150Apeak
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
CONTROL
IC
+90
°
C
SHUTDOWN
CIRCUIT
(LATCH)
SHUTDOWN
CIRCUIT
(LATCH)
OVERCURRENT
DETECTOR
OVERCURRENT
DETECTOR
SWITCHING
DRIVER
SWITCHING
DRIVER
RELAY
RELAY DRIVE
CIRCUIT
RELAY DRIVE
CIRCUIT
RELAY
+24
+24
DSP
CLIP
RELAY_PA
TEM
P
_
P
A
FAU
L
T
_
OU
TPU
T
PSW
_
DETECT
MAINS
TEM
P
_
PS
RELAY
_
PS
SHU
T
DOW
N
_
PS
FAN
_
CON
T
ROL
FAN
_
MONITOR
FAULT
OUTPU
T
NETWORK
MY SLOT
AES EBU
POWER(WH)
ST
ANDBY(OR)
PAR
ALLEL(OR)
BR
IDGE(GR)
PRO
TECTION(RE)
NE
TWORK(GR)
ID
EN
TIFY(BL)
MU
TE(RE)
ALERT(OR)
CLIP(RE)
SIG
N
AL(GR)
MUT
E
FUN
C
T
IO
N
HOME
EXI
T
ENTER
CHA
CHA
CHB
CHB
CHA
CHB
CHA
CHB
CHA
CHB
CHA
CHB
ENCODER
EMI
FILTER
SIO
SWITCHING
CONTROLLER