Technics SA-EH790E, Руководство по обслуживанию

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SCHEMATIC DIAGRAM-3
IC801
C2HBZC000010
DIGITAL SIGNAL
PROCESSOR
C805
1
C809
0.01
MAIN CIRCUIT
B
C818 680P
C839
50V1 R824
120K
R825
120K
C838 50V1
C835
6.3V47
C816
0.1
C834
6.3V47
C833 6.3V47
C819
680P
L804
C825
50V4.7
R806
270
C808
0.01
R820
1K
R819
1K
R818
1K
C832
50V4.7
C831
50V4.7
R827
0
R817
1K
C830
50V4.7
R816
1K
C828
50V4.7
C829
50V4.7
R815
1K
C827
50V4.7
C820
50V4.7
R804
270
R805
270
C821
50V4.7
C823
6.3V100
C822
6.3V47
C824
6.3V47
C806
2200P
C807
2200P
R836
1.5K
R835
1.5K
C804
0.1
R801
220
R802
1M
X801
(36.8MHz)
C801
12P
C802
5P
C803
1000P
A B
R830
4.7K
C837
16V10
R834
22K
C826
50V4.7
C815 0.022
R809
330
R810
330
R812
330
R811
4.7K
C814
1
R808
330
R814
100K
L801
L802
C813
0.01
C812 0.1
C811
0.022
R807
270
C810
0.01
R829
2.2K
C836
16V10
R833
22K
R823
330
R821
330
D
C
B
E
A B E D F G
U
V
L
S
K
G
C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
GND
AR
VDX XI XO
GND
X
NC GND
A1
AI1 AO1 NC AOT1 NC VDA12 AOT2 AO2 NC AI2 GNDA2 NC VRO1 VRI NC VRO2 GND
A3
AI3
AO3
AOT3
VDA34
NC
AOT4
NC
AO4
AI4
NC
GND A4
NC
V
DD
R
GND R
SYNC
ELRI/ O
NC
DIN2
NC
DIN1 DIN0
NC
DOUT
V
DD
/
RST
NC
/C
S
IFCK
IFDI
IFDO
GND
/
ERR
I2CS
TST0
NC
LIN4
RIN4
RIN3
RIN2
RIN1
NC
GND AL
OUTL
VRAL
VDAL
VDAR
VRAR
OUTR
80
NC
TST1
NC NC
LIN3
LIN2
LIN1
EBCI/
O
A
L807
R803
100
R898
0
J I
R813
4.7K
SH-EH790(E) MAIN CIRCUIT DIAGRAM
IC802
C2HBZC000008
DIGITAL SIGNAL
PROCESSOR
R863
560
R867
560
C871
2200P
C
C867
50V1
R854
18K
C854
16V10
C852
2200P
R855
39K
C853
16V10
C851
2200P
C863 6.3V47
C862
470P
R860
56
C861 560P
C864
6.3V47
R G
C896 0.022
R861
100K
C895 0.022
R874
330
C894 0.022
F E D C B A
C858
0.1
C857
0.1
R881
100
C856
50V4.7
R852
1K
R851
1K
C855
50V4.7
R859
10K
C860
2200P
C866
50V1
R864
560
C884
2200P
C865
1
C872
2200P
C881 50V1
C883
6.3V47
R876
270
C887
6.3V47
C886
6.3V100
C878
0.01
R871
270
C879
2200P
R872
270
C880
2200P
C869
0.01
C888
6.3V47
L806
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
XI
XO
VDX GND
AL
AOL AOL
T
VRLR AIL
T
VDAR AIR
T
AOR
T
AOR GND
AR
GND
AC
AOC AOCT VRCS AICT VRO VRI VDASC AISL
T
AOSL
T
AOSL GND
ASL
GND
ASR
AOSR AOSR
T
AISR
T
VDASR
NC
TP0
TP1
TP2
TP3
TP4
NC
V
DD
R
GND R
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
FS
CK00
CK01
GND
TP13
MCK
V
DD
TP14
TST15
EM0 EM1
STEP1 STEP0
/RST
V
DD
SYNC
ELR0 ELR1
EBC0 EBC1
DI
N
D
OUT
GND
/CS
IFCK
IFD1 IFD0
IFOK
/ERR
I2CS
BA1 BA0
BOOT
NC
TST0
TST1
TST2
TST3
VDM
VRM1
M IN
M OUT
VRM2
GNDM
VSAL
L IN
AVRL
VDL
VDR
AVRR
R IN
VSAR
GNDX
H
R890
10K
R889
330
R888
330
C897 0.022 C898
6.3V100
C891
0.01
C893
0.01
R882
1M
C899
6.3V47
R891
2.2K
R868
560
C868
50V1
C892
6.3V47
C873
50V1
C874
50V1
R870
270
R869
270
C876 50V1 C875 50V1
R892
2.2K
R900
0
R858
10K
R857
10K
W P F G
R877
22K
R878
22K
E F
R875
270
C882 50V1
C859 50V4.7
R856
0
L814
R880
2.2K
R879
2.2K
C877
0.01
L811
D
L822 L821
G
C870
6.3V100
R873
330
L808
10
H
:POSITIVE VOLTAGE LINE :CD PLAYBACK SIGNAL LINE
5.1V
5.1V
5.1V
2.5V
0V
0V
5.1V
2.5V
2.5V
2.6V
5.1V
2.6V
2.5V
2.5V
2.5V 2.5V 0.6V 5.1V 5.1V 5V 5V 0V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
5.1V
5.1V
2.5V
2.5V
4.6V 1.9V 1.9V 2.5V 2.5V 2.6V 5.1V 5.1V 2.6V 2.5V 2.5V 2.6V 2.5V 2.4V
0.7V
P-P
F=36.8MHz
2.3V
P-P
F=36.8MHz
5.1V
5.1V 5.1V 5V 5.1V 2.5V 2.5V 2.5V 2.5V 2.5V 0.6V 5V 5V 0V 5.1V
5.1V
2.5V
2.5V
2.5V
4.3V
2.5V
2.5V
5.1V
5.1V
2.5V
2.5V
1.9V 2.1V 4.8V 2.5V 2.5V 2.4V 5.1V 2.4V 2.5V 5.1V 2.5V 2.5V 2.5V 2.5V 5.1V
5.1V
5.1V
5.1V
2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V