DTR-7.3
BLOCK DIAGRAM
LEFT
R IGH
T
LEFT
L
R
C
SW
SL
SR
SBL
SBR
FRONT SPEAKERS
LEFT
AC
OUTLET
FUSE
RS 232
RIGHT
LEFT
SUBWOOFER
COOLING FAN
+5 V
VIDEO
-5 V
VIDEO
+9 V
VIDEO
RELAY
DRIVER
MAIN AMP
+B1/ -B1
-27V
-VP
FL AC
FL TUBE
FL AC
12V TRIGGER
+B 3
RELAY
+B 2
-15V
AUDIO
+5 V
DS P
+15V
AUDIO
MUTE
MUTE
MUTE
MUTE
RELAY
DRI VER
MUTE
VOLTAGE/CUR-
RENT SENSOR
MUTE
MUTE
MUTE
THER MAL
SENSOR
FAN
DRIVER
RI
INTERFACE
+5.6V
Y
CB
CR
REMOTE SENSOR
ZONE 2
I R OUT
I RIN
12V TRIGGER
A
B
RI
T902
T901
AC IN
TONE
NJU7306G
NJU7306G
-1
-1
LED
DRIVER
LPF
TC94A07F
TC94A07F
TC94A07F
MASTER VOLU ME
TC94A07F
CUT
BOOST
Z2L
MCL
BL
TL
DL
BR
TR
MC R
DR
Z2R
DSBL
MCSR
MCSBL
DSW
MCSW
DC
MC C
DSBR
MCSBR
DSR
DSL
MCSL
SW->R
SW->L
BYPASS
C->L
SL->L
C->R
SR->R
TV-8
HPEN
TC9163
TC9164
+29dB
Power Amplifier
+29dB
11dB
11dB
ol
x
+29dB
+29dB
+29dB
+29dB
+29dB
HEADPHONE
SURROUND SPEAKERS
SURROUND BACK SPEAKERS
/ZONE 2 SPEAKERS
RIGHT
RIGHT
RIGHT
CENTER
PREOUT
SURROUND
LEFT
SURROUND
RIGHT
SURROUND BACK
/ZONE 2 LEFT
SURROUND BACK
/ZONE 2 RIGHT
CENTER
MUTE
MUTE
BYPASS
MULTI CHANNEL INPUT
PF
PF
PF
PF
F
F
COMPONENT VIDEO OUTPUT
IR DE-
MODULATOR
BYPASS
BYPASS
F
STANDBY
RS232
INTERFACE
MPD4721GS
Australian
model
U.S.A.
model
FUSE
A
1
2
3
5
B
C
D
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9
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8
0
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1
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Q
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