Technics SA-EH790E, Service Manual

Page: 52 / 55

C2BBGF000434
IC601
SYSTEM CONTROL / FL DRIVE
DSP
ACK
9
DSP
CS
DSP
CS
DSP
RST
DSP
RST
8 11
DSP
A
C
K
+B5
D601
24
V
CC
LED
SPO
39
D613
(SEAT POSITION)
40
LED
SPG
LED
MR
O
LED
MRG
43 44
D615
(VIRTUAL
REAR
SURROUND)
45 46
LED
VR
O
LED
VRG
D616
(CENTER
FOCUS)
27 28
LED
CFO
LED
CFG
D617
(SUPER
SOUND
EQ)
38
LED
DPL
D612
(DOLBY
PRO LOGIC)
37
LED
SSS
D611
(SUPER
SURROUND)
SA
CS/REQ
33
SA
REQ
SA
CLK
34
SA
CK
SA
DA
T
A
35
SA
DO
36
SA
DI
21
V
SS
97
AV
SS
98
+B5
D602
VREF
7
SA
CS
STEP1
IFOK
BA1
82~85
88
C2HBZC000008
IC802
DIGITAL SIGNAL
PROCESSOR
93
(98)
MICOM
I/F
D-IN/OUT
80 79 78 73 72 69 68 67 66 65 64 63
ADC
(MIC)
ADC
Lch(Rch)
89
BOO
T
BA0 IFDI
IFCK
DOUT
DIN
EBCI
EBCO
ELRI
ELR
O
SYNC
MIN
MOUT
LIN(RIN)
86
+B3 VDM
87
VRM1
90
VRM2
TST0~3
GNDM
91
92
(99)
VSAL
(VSAR)
94
(97)
AVRL
(AVRR)
95
(96)
VDL
(VDR)
+B3
1 2
XI XO
DAC(L/Rch)
ATT
5
(12)
AO
L
(A
OR)
6
(11)
AO
LT
(A
OR
T)
DAC(Cch)
ATT
AO
C
16
A
OCT
15 18
AICT
VRCS
17
VRI
20 21
(30)
+B3
VDASC (VDASR) AISL
T
(AISR
T
)
22
(29)
DAC
(SL/Rch)
ATT
24
(27)
A
OSL
(A
OSR)
25
(26)
GNDASL
(GNDASR)
58
57
EM1
EM0
TP0~14
32~36,
40~47,
52,55
54,
62
38
V
DD
V
DD
R
+B2
51,
70
GND
23
A
OSL
T
SUR
L1
71
/CS
75
CK DO
CS2
60
STEP0
61
/RST
RST2
59 53
MCK
50
CK
O1
49
CK
O0
48
FS
+B2
CCHMIC
VDX
3
+B3
GNDX
100
DIN1
I2CS
C2HBZC000010
IC801
DIGITAL SIGNAL
PROCESSOR
MICU I/F
54 53 46
IFDI
IFCK
DIN0
3 4
XI XO
X801
(36.8MHz)
V
DD
+B2
59
GND
55
IFDO
CS1
58 57
/ERR
CK
DO
45 43
DIN2
41
EBCI/O
48
DOUT
GNDX
5
28
A
OSR
T
R ch
X X
8
(10)
AIL
T
(AIR
T)
NJM4558MTE1
IC302
REC
L
GND
A
C
14
VRL
R
7
Q313
C
OUT
C2BBFD000246
IC401
SYSTEM CONTROL
DA
C
K
9
DSP
ACK
RESET
18
DSP
RST
DCS
7
DSP
CS
DCK
10
DSP
CK
DDO
11
DSPDIO
DDI
12
+B2
1
V
CC
35
CK
CK
31
RST1
RST1
32
CS1
CS1
36
DO
DO
33
RST2
RST2
34
CS2
CS2
21
V
SS
15
GND
MUT
F
29
EXP1
1
MUT
SB
25
EXP15
4 5 6
NJ
ST
ECK/NJ
CK
EDA/NJ
DT
ST
CLK
DA
8
SENSE
DSP
SNS
2
VREF
XIN XOUT
19 20
X401
(8MHz)
22
EXP18
A
V
I6CH
10
DSP
SNS
DSP
SNS
12
DSP
CK
DSP
CK
DSPDIO
13
DSP
DO
14
DSP
DI
41 42
LED
3DO
LED
3DG
D614
(MULTI REAR
SURROUND)
DIN
DOUT
EBCIO
ELRIO
4
(13)
GND
AL
(GND
AR)
+B3
9
VDAR
DELAY RAM
AUDIO SERIAL INTERFACE
SELF
BOOT
ASP
(AUDIO DIGITAL SIGNAL PROCESSOR)
DELAY RAM
(4kword x 16bit)
TIMING GENERATOR
INTER-
POLATION
FILTER
DECIMATION
FILTER
POLYGONAL LINE
CANCELLATION
RUNNING
AVERAGE
FILTER
TIMING
GENERATOR
BUFFER
AMP
REC
L1
ATT
ATT
Q308
A
TT1
SW1 SW2
/ERR
76 74
IFDO
26
EXP14
AT
T
CNV
SS
17
LED
DRIVE
Q605,606
ADC
OP
AMP
VRAL
FRONT
OSC
VRAL
DSP
(I/O INTERFACE)
DAC
ATT
9
(15)
8
(17)
11
(14)
7
(18)
[CH1/2]
DAC
ATT
26 25 27 24
[CH3]
DAC
ATT
32 33 30
[CH4]
20 21 23
75
(80)
76
(79)
74
(1)
77
(78)
65
(69)
66
(70)
67
(71)
68
(72)
LIN4
(RIN4)
LIN3
(RIN3)
LIN2
(RIN2)
LIN1
(RIN1)
OUTL
(OUTR)
VRAL
(VRAR)
VDAL
(VDAR)
GNDAL
(GNDAR)
VRO1
VRI VRO2
GNDA1
(GNDA2)
AO1
(AO2)
AI1
(AI2)
AOT1
(AOT2)
GNDA3 AO3 AI3 AOT3 AO4 AI4 AOT4
52
/CS
50
/RST
RST1
DOUT
DIN
EBCIO
40
ELRI/O
ELRIO
39
SYNC
49
V
DD
R
+B2
37
VDX +B3
2
VDA12
13
+B3
TST0
TST1
60
61
FL
SUB
WOOFER
SP
IN
+B3
DVD 6ch
INPUT
SURROUND
DVD 6ch
INPUT
ATT
Q310
3
AV
SS
16
SW1
24
EXP16
A
T
IA
V
+B2
SH-EH790(E) BLOCK DIAGRAM
GNDR
38
VDA34
28
+B3
35
GNDA4
(1/2)
D302