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TX-SR706/SA706
SERVICE MANUALRef. No. 4092
072008
AV RECEIVER
MODEL TX-SR706MODEL TX-SA706
TX-SR706 Black, Golden and Silver models
220-240V AC, 50Hz220-240V AC, 50/60Hz220-240V AC, 50/60Hz
B MMP, MMA, S MMP, MMAB MMO, S MMOG MMQ, MMT
TX-SA706 Golden model 220-240V AC, 50/60HzG MMR
RC-717M
SAFETY-RELATED COMPONENT WARNING!!COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
B MDC, S MDD, G MDT 120V AC, 60Hz
TX-SR706
EXPLODED VIEWS-1
TX-SR706/SA706TX
-SR
706/SA
706
A141x 2 pcs.
U11
P6600Ax 18 pcs.
A019x 41 pcs. (All except
DC, DD)
(All exceptDC, DD)
(DC, DDType only)
(DC, DDType only) A097
x 2 pcs.
A097x 2 pcs.
A093x 6 pcs.
A003x 4 pcs.
P500x 15 pcs.
A107x 2 pcs.
A109x 4 pcs.
A061x 4 pcs.
A015x 2 pcs.
A137x 5 pcs.
A015x 2 pcs.
A015x 3 pcs.
A015x 5 pcs.
A019x 3 pcs.
A025x 4 pcs.
A015x 2 pcs.
A015x 3 pcs.
A015x 4 pcs.
A089x 5 pcs.
A015x 2 pcs.A585x 3 pcs.
A179x 6 pcs.
A015x 2 pcs.
A317x 3 pcs.
A015x 2 pcs. A015
x 2 pcs.
A015x 11 pcs.
F901
F6901
F4001
P106
P901D
P901
P4103
P1007
U19
U07
A108
F109A
A133
A133
A133
A130
F4000
F6902U01
U21
U22U26
U23
U24U27
U25
U011
U08
U09
U10
U13
U28U02
U15
U16
U20
U17
P4102
P691
A101A091
A015
A015
A015
A001
A043
A051
A053
A105
A125
T901
A059
A015
A139
A131
A103
A163
A185
A191
A201
A301
A351
A303
A305A211
A307
A309
A209
A355
A583A095
A143A149
Refer to in EXPLODED VIEWS-2
EXPLODED VIEWS-2
TX-S
R706/S
A706
TX-SR706/SA706
Q6056Q6066
Q6054Q6064
Q6051Q6061
Q6052Q6062
Q6050Q6060
Q6053Q6063
Q6055Q6065
Q6050Ax 2 pcs.
Q6050Bx 6 pcs.
A047x 14 pcs.
TX-SR706/SA706
BLOCK DIAGRAMS-1AUDIO SECTION
TX-SR706/SA706A
1
2
3
4
5
B C D E F G H
Refer to SCHEMATIC DIAGRAM-7 and -16 (SD-7 and SD-16)for digital audio signal flow wave forms.
RE
C L
RE
C R
MAIN LMAIN R
SUB LSUB R
MA
IN R
MA
IN L
SU
B R
SU
B L
SP
RLF
(H
/P)
SP
RLB
(P
WR
ED
Z2)
A-M
UT
E
SW
-MU
TE
SB
-MU
TE
I2S(DIR/ADC)
TONE
C
C
SL
SL
SR
SR
SW
SW
Q3461SDRAM
Q3401D790E001BZDH300
Q3501D790E001BZDH300
Q3561SDRAM
Q3551FLASH ROM
CD
TUNER L
L
R
R
L
R
TAPE
L
L
R
R
CBL/SATL
R
GAME/TVL
R
VCR/DVR
OUT
IN
OUT
IN
DVD
L
L
L
R
L
R
L
R
R
R
SURROUNDBACK
OPT OUT
TXOUT HDMI
RX
NAHDM-9562
HDMI
2ch ADC
AT
T
AT
T
DIR
VLSC:TX-SA704X only
I2S(DVD-AUDIO/DSD) I2S(DVD-AUDIO/DSD)
C
SL
SR
( TX-SA706/806)
XM/DT IC
SIRIUS
Refer to SD-15
XM-RADIO
DACAK4388
XM
AN
TE
NN
A U
NIT
AUX IN(FRONT)
TC74VHCT157FT
To Main Microprocessor
RS232
INTERFACERS232
INTERFACERI
NAVD-9505
RI
DT
R-6
.9/7
.9
TX-SR806
ETHERNET(E-CONTROL)
E-control
ZONE2
All except TX-SA706X
+29dB
+29dB
-6dB
-6dB
SURROUNDBACK / Bi AMP
Q5501 R2S15215FP
DownMIX
DownMIX
DSP
DSD(SA-CD)
SURROUND
FRONT
CENTER
SW
L
RPHONO
inverted down mix
inverted down mix
SW
46
54
55
Z2L
Z2RZ2R
SBL
SBR
SBR
SBL
FL(MIX)
FL(DAC)
FR(MIX)
FR(DAC)
SUB L
SUB R
ADR
ADL 47
PHONO EQ
SBL/Z2L
SBR/Z2R
FL
FR
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
FRONT
CENTER
SURROUND
+29dB
+29dB
+29dB
+29dB
+29dB
SPEAKER TERMINALS
HEADPHONES
FL
FL
7.1CHPREOUT
PoweredZ2>>OFF
SW
C
SBL
SBR
SL
SR
FL
FR
SBL
SBL
SR
SR
SL
SL
C
C
FR
FR
7 CHPOWER AMPLIFIER
L
R
12V TRGGER OUT ZONE2 / IR OUT
12V TRGGER OUT ZONE2
REMOTESENSOR
IRNone/ IR IN B
IR IN / IR IN A
CONTROL12V TRIGGER
12V TRIGGER OUT A
12V TRIGGER OUT B
12V TRIGGER OUT C
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
8ch DAC
Q1324CS4382A
Q1324 CS42516
COAX 1
COAX 2
OPT FRONT
OPT2
TC74HC157
SPDIF SW
OPT1
(FRONT IN)
MIC AMP
NARF-9507
MIC
FM/AM TUNER UNITTX-SR706/806,DTR6.9/7.9
0dB FIX
0dB FIX
TONE
TONE
L
R0dB FIX
0dB FIX
+6d
B
VLS
C
+6d
B
VLS
C
+6d
B
VLS
C
VLS
C
VLS
C
+6d
B
+6d
B
VLS
C
+6d
B
VLS
C
VLS
C
+6d
B
+6d
B
TONE
TONE
MCH SB
MCH SB
SUB
SUB
L
R
TX-SR806,DTR-6.9/7.9 only
Q5502 M61540FP Electric Volume
IN1
IN4,5
HDMI
HDMI
COAX 3
COAX OUT
TONE
Q3451FLASH ROM
16 Mbit 8 Mbit
1st DSP 2nd DSP
64 Mbit 64 Mbit
DTR-6.9/7.9 only
H.P.>>>OFF
SBR
SBR
SW
SW
75
76
71
70
81
82
78
79
72
73
68
69
66
67
64
65
62
63
60
61
58
59
90
91
95
38
98
41
97
40
96
39
37
100
36
99
23
24
20
17
18
11
12
9
8
15
14
3
2
5
6
4
83
84
43
94
42
93
21
++
++
++
+
+
NADG-9504
NAHDM-9562
Audio Processor (Selecter,Tone, Volume)
ZONE2 PRE OUT
ZONE2 LINE OUT
:TX-SR806,DTR-6.9/7.9
:TX-SR706Refer to SD-7
Refer to SD-10 to 13
Refer to SD-8, 9
Refer to SD-5
TX-SR706/SA706
BLOCK DIAGRAMS-1AUDIO SECTION
A
1
2
3
4
5
B C D E F G H
Refer to SCHEMATIC DIAGRAM-7 and -16 (SD-7 and SD-16)for digital audio signal flow wave forms.
RE
C L
RE
C R
MAIN LMAIN R
SUB LSUB R
MA
IN R
MA
IN L
SU
B R
SU
B L
SP
RLF
(H
/P)
SP
RLB
(P
WR
ED
Z2)
A-M
UT
E
SW
-MU
TE
SB
-MU
TE
I2S(DIR/ADC)
TONE
C
C
SL
SL
SR
SR
SW
SW
Q3461SDRAM
Q3401D790E001BZDH300
Q3501D790E001BZDH300
Q3561SDRAM
Q3551FLASH ROM
CD
TUNER L
L
R
R
L
R
TAPE
L
L
R
R
CBL/SATL
R
GAME/TVL
R
VCR/DVR
OUT
IN
OUT
IN
DVD
L
L
L
R
L
R
L
R
R
R
SURROUNDBACK
OPT OUT
TXOUT HDMI
RX
NAHDM-9562
HDMI
2ch ADC
AT
T
AT
T
DIR
VLSC:TX-SA704X only
I2S(DVD-AUDIO/DSD) I2S(DVD-AUDIO/DSD)
C
SL
SR
( TX-SA706/806)
XM/DT IC
SIRIUS
Refer to SD-15
XM-RADIO
DACAK4388
XM
AN
TE
NN
A U
NIT
AUX IN(FRONT)
TC74VHCT157FT
To Main Microprocessor
RS232
INTERFACERS232
INTERFACERI
NAVD-9505
RI
DT
R-6
.9/7
.9
TX-SR806
ETHERNET(E-CONTROL)
E-control
ZONE2
All except TX-SA706X
+29dB
+29dB
-6dB
-6dB
SURROUNDBACK / Bi AMP
Q5501 R2S15215FP
DownMIX
DownMIX
DSP
DSD(SA-CD)
SURROUND
FRONT
CENTER
SW
L
RPHONO
inverted down mix
inverted down mix
SW
46
54
55
Z2L
Z2RZ2R
SBL
SBR
SBR
SBL
FL(MIX)
FL(DAC)
FR(MIX)
FR(DAC)
SUB L
SUB R
ADR
ADL 47
PHONO EQ
SBL/Z2L
SBR/Z2R
FL
FR
LEFT
RIGHT
LEFT
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