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TX-SR705/SA705
Ref. No. 3997
072007
SERVICE MANUAL
AV RECEIVER
MODEL TX-SR705
MODEL TX-SA705
RC-693M
TX-SR705 Black, Golden and Silver models
B MDC, S MDC, G MDT 120V AC, 60Hz
B MMP, MMA, S MMP, MMA 220-240V AC, 50Hz
B MMO, S MMO 220-240V AC, 50/60Hz
G MMQ, MMK, MMT 220-240V AC, 50/60Hz
TX-SA705 Golden models
G MMR 220-240V AC, 50/60Hz
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.
TX-SR705/SA705
EXPLODED VIEWS-1 A075
U24 A004
( DC Type) x 2 pcs. A304
x 6 pcs. A302
P901 A020 A015
x 47 pcs. A047
A024
A024 A016
A022 U20
P101
A024
A013 P4008 A301
U011
P6601A U17 A047
x 8 pcs. A303
A004 P6602A
x 2 pcs. x 6 pcs. Refer to in
EXPLODED VIEWS-2
U18 A041
A004 A004 A004
A042 x 2 pcs. x 2 pcs. x 2 pcs.
P6607A U16
U22 A004 A004
x 4 pcs. A305 A024
U05 x 2 pcs.
U23 F6902 A027
U12 U13
F6901 U14
U10
( All Type Except DC) U01 U15 A074
F903 F901 A016 A004 A061 P701
A021 A004 x 7 pcs. U06
U08 A004 x 3 pcs.
A037 U03
U02 x 4 pcs. U04 A051 A002
A004
U09 x 2 pcs.
A039 A045 A065 A008
A016 A006
T901 A073 A049 A004
A075 x 4 pcs.
F910 A024 A308
F910
A004 A306
A004 A063
A024 A001 U07
A016 A075 A010 A009
x 2 pcs. P691 A313
P692
A308
x 4 pcs.
TX-SR705/SA705
A004
A306 x 5 pcs. A007
x 4 pcs. A005
A003
A309 x 8 pcs.
x 4 pcs.
A025 U11 A015
A311 A023 A004 x 3 pcs.
x 4 pcs. x 2 pcs. x 4 pcs.
TX-SR705/SA705
EXPLODED VIEWS-2
Q6050A Q6050B
x 2 pcs. x 6 pcs.
A059
x 14 pcs.
Q6056
Q6066
Q6055
Q6065
Q6054
Q6064
Q6053
Q6063
Q6052
Q6062
Q6051
Q6061
Q6050
Q6060
TX-SR705/SA705
TX-SR705/SA705
A B C D
BLOCK DIAGRAMS-1
AUDIO SECTION
ANTENNA
XM/SIRIUS TUNER UNIT
UNIT
NARF-9267(SD-14) Q5501 R2S15211FP Audio Processor (Switch, Tone & Volume)
XM
TX-SR705 Only MAIN L
DAC 40 MAIN R
XM/DT IC SUB L
AK4384
SUB R
MAIN R
MAIN L
SUB R
SUB L
1 SIRIUS SIRIUS 63
37
DC Type Only 64
36
MIC AMP 57
SETUP MIC 58
65
L
PHONO PHONO EQ 66
R
61
L
AUX INPUT 62
(FRONT IN) R
59
L
TUNER
(TX-SA705 Only) 60
R
2 CD
L 55
R 56
L 53
TAPE OUT
R 54
L 51
TAPE IN
R 52
L
GAME/TV IN 49
R
50
L
CBL/SAT IN 47
R
48
L
VCR/DVR OUT
3 R
45
REC R
REC L
46
L
VCR/DVR IN
R 71
L 72
FRONT
R 67
SUB L 38 L R
C 68
SUB R 39
C/SW
SW
DVD
L
SURROUND
R
SURROUND L
BACK R
4 ATT
ATT
ATT
ATT
ATT
ATT
IN 1
Q1011
COAXIAL IN 2 TC74VHC157
IN 3
AUX INPUT
DIGITAL
IN 1
OPTICAL IN 2 DACFL DACFR DACCL DACSWL DACSL DACSR DACCR
OUT SPDIF SW
LPF
LPF
LPF
LPF
LPF
LPF
LPF
HDMI BOARD
NAHDM-9265(SD-8,9) Q1101 CS42528
IN1
-
5 Micro
Controller
2ch ADC
HDMI RX
-
IN2 8ch DAC
HDMI
DIR
IN3
OUT HDMI I2S(DVD-AUDIO/DSD)
TX
TX-SR705/SA705
E F G H
19
HEADPHONES
FL 7 CH
TONE
POWER AMPLIFIERS
20
SPEAKER TERMINALS
+
17 FR +29dB
FRONT LEFT
TONE
16 FL
74 FL
+
FR
C +29dB
35 FL
7 C SL FRONT RIGHT
SR
SBL
73 FR SBR
6
34 FR
+
+29dB
14 7.1CH CENTER
SL
75 C
PREOUT
30 C
15
FL +29dB
+
78 SL
SURR. LEFT
12 SR FR
33 SL
C
11 +29dB
77 SR
SW SURR. RIGHT
+
32 SR 9 SW
SL
SUB L
+29dB
76 SW
10 SR SUUR. BACK
LEFT
+
31 SW
SBL
4 SBL
80 SBL
SBR +29dB
SUUR. BACK
SUB R
29 SBL 5 RIGHT
+
79 SBR
2 SBR
28 SBR
LEFT
1
ZONE 2 ZONE 2 SPEAKERS
+
Q5501 R2S15211FP
L LINE OUT
-6dB
L SPRLB (PWRED Z2) RIGHT
R R
SPRLF (H/P)
-6dB
SBMUTE
Z2MUTE
AMUTE
CSRL
SBRL
Z2RL
FRL
IR
REMOTE SENSOR IR IN
12V TRIGGER
CONTROL 12V TRIGGER OUT
Q3451 Q3461 Q3551 Q3561 Q3651 Q3661
Q3471 RI
FLASH ROM FLASH ROM SDRAM FLASH ROM SDRAM INTERFACE RI
16M Bit SDRAM 4M Bit 16M bit 8M Bit 16M bit
32M bit
CR DACSWR DACSBL DACSBR
RS232
INTERFACE RS232
Q3401 Q3501 Q3601
DSP3
LPF
LPF
LPF
DSP1 DSP2
TMS320DA790 TMS320DA788 TMS320DA707
or or
TMS320DA710 TMS320DA708
Q2001
M3087BFKBGP
Q1201
MAIN
CS4398 MICROPROCESSOR
2ch DAC
I2S(DIR/ADC)
I2S(DVD Audio)
Refer to SCHEMATIC DIAGRAM-4 and -15 (SD-4 and SD-15)
Q3301,Q3311
TC74VHCT157FT for digital audio signal flow waveforms.
TX-SR705/SA705
A B C D
BLOCK DIAGRAMS-2
VIDEO AND HDMI SECTION DSP AND HDMI B
NAHDM-9265(SD
ADINSY
ADINSC
ADINCV
ADINPY
ADINPB
1 ADINPR
Refer to SCHEMATIC DIAGRAM-8, -10 and -15 (SD-8, SD-10 and SD-15)
for video and HDMI signal waveforms.
1K
47K
HP DET
+5V
HDMI IN 3
47K
DDC DATA DTA
DDC CLK
CERemote
CK+/-
D0+/-
D1+/-
D2+/-
VIDEO AND SP TERMINAL BOARD
NAVD-9270(SD-10) 1K
2
47K
HP DET
47K
+5V DTA
HDMI IN 2
DDC DATA
DDC CLK
CERemote
COMPONENT VIDEO INPUT Y1
CK+/-
D0+/-
D1+/-
CB1 D2+/-
IN 1
CR1
ADINPY
ADINPB
Y2
ADINPR 1K
47K
CB2
IN 2
HP DET
47K
DT
HDMI IN 1
+5V
CR2 DDC DATA
DDC CLK
CERemote
CK+/-
3 Y3
D0+/-
D1+/-
D2+/-
CB3
IN 3
CR3
Q4002 AN-15881A-VT
Video Amp & Switch
6dB 75
CY 75
75
75
6dB
75
CB
75
6dB
DACPR
COMPOSITE VIDEO INPUT 6dB
DACPB
6dB
CR
DVD 6dB
DACPY
DACSC
4 VCR/DVR DACSY
DACCV
75 V ADINCY
CBL/SAT 6dB 75
V Y ADINSY
75 C ADINSC
GAME/TV Y
AUX INPUT CB
(FRONT)
CR
S VIDEO INPUT SDET
C Y SDET
DVD 6dB
6dB
C Y Y SDET 75
VCR/DVR SELV1
C Y 75
CBL/SAT SDET
SDET
6dB
C Y SDET
5 GAME/TV
SDET
SDET
75
6dB 75
SDET
C Y
SELV1
AUX INPUT 75
(FRONT) SELV1
6dB 75
C
Q4002 AN-15881A-VT
TX-SR705/SA705
E F G H
MI BOARD Q8801
ADV7172
SD-8&9) Video Encoder
DACPY
DAC_A
LLC DACPB
SDET VSYNC
LLC DAC_B
DACPR
VSYNC DAC_C
HSYNC HSYNC DACSY
DAC_D
FIELD/DE FIELD/DE DAC_E DACCV
33 RESETB
CR(P20-29) DAC_F DACSC
CB(P0-09)
22 SCLK
PYDET
SDA
Y(P10-19)ITU656 Y
E2PROM3
21
S-24CS02AFT-V-G
4
3
2
1
AUX_A0
SDA GND
A2
A1
A0
AUX_A1
AUX_A2
+3.3VHD
VCC
SCL
WP
AUX_A3
5
6
7
8
SDA_VDVE
SCL_VDVE
RST_VE
1K DTC144EE 47K
0
5.6K IN_A0
0
5.6K IN_A1
47K
R3HPR IN_A2 Q8001
IN_A3
PRODDC3
FLI8125-LF-BC
DTA144EE TWIACLK
1
1OE VCC
8 (HUDSON) TWIADAT
2 7
1A 2OE
SCLDDC3
ON_0 IP conversion, TWIBCLK
5 2A 1B 3 ON_1 TWIBDAT
4 GND 2B 6
SDADDC3
ON_2
Scaler & OSD RXDA
SN74CB3T3306DCT ON_3 TXDA
RXDB
Q8101 REFCLK TXDB/DATA16
AD8196
FLASH_CS(0,1)
PCI_CBE(1.3)
PCI_AD(0-31)
HDMI SW
GPIO(16,22)
XTAL
4
3
2
1
AUX_B0
27MHz
SDA GND
SCL A2
A1
VCC A0
E2PROM2 AUX_B1
S-24CS02AFT-V-G AUX_B2
+3.3VHD
WP