Hitachi HCUR700UC Service Manual page 47

CIRCUIT DIAGRAM
SERVO Circuit (2)
BC2
104Z
BC13
104Z
37
38
AA7 39
AA6 40
AA5 41
AA4 42
AA0 43
44
AA2 45
AA1 46
AA3 47
050K
48
XC6
50MHz
49
X1 50
OPEN
R4 51
52
R1
XC5 53
100K
BC14 54
0R0
104Z
55
DSP DIGI
56
57
DSP PDCK
58
DSP PDRQN
59
DSP PSYCN
PD8 60
PD7 61
PD6 62
PD5 63
64
PD4 65
PD3 66
PD2 67
PD1 68
PD0 69
70
71
72
DSP PD BUS
DSP SMCK
D+5V
L1
FBM2125HM330-B
BC1
104Z
— 61 —
D+5V
IC4
PST600E
1
IN
NC
VSS
BA7
BA6
BA5
BA4
BA0
VSS
BA2
BA1
BA3
TEST0
TEST1
TEST2
VSSck
XI
IC1
XO
TC9469BF
VDDck
DIGO
NC
PDCK
PDRQN
PSYCN
PDA8
(SBSY)PDA7
(SFSY)PDA6
(SBDI)PDA5
VSS
(CLCK)PDA4
(C2PI)PDA3
(DAI)PDA2
(BCKI)PDA1
(LRCK)PDA0
VSS
NC
NC
BC15
104Z
BC16
104Z
D+3.3V A+3.3V
IC5
BA033FP
R65
R66
103
103
D2 3
OUT
1SS355
BC5
3 D1 104Z
OUT
1SS355
C1
104Z
RESET
R68 R71
103 103
104Z
BC21
144
NC
143
VDD
142
HA0
141
/PDIAG
140
HA1
139
/IOCS16
138
INTRQ
137 BC20
/HDAK
136 R117
VSS
135 102
VDD24
134 104Z
IORDY
133
VSS24
132
/HRD
131
VSShr
130
/HWR
129
HDRQ
128 330 R31 DD15
HD15
127 BC19
VSS
104Z
126
VDD
125 330 R23 DD0
HD0
124 330 R30 DD14
HD14
123 330 R22 DD1
HD1
122 330 R29 DD13
HD13
121 330 R21 DD2 R116
HD2
120 330 R28 DD12 562
HD12
119 330 R20 DD3
HD3
118 330 R27 DD11
HD11
117 330 R19 DD4
HD4
116
BC18
VSS
115 330 R26 DD10
HD10
114 104Z 330 R18 DD5
HD5
113 330 R25 DD9
HD9
112 330 R17 DD6
HD6
111 330 R24 DD8
HD8
110 330 R16 DD7
HD7
109
VDD
D+5V
104Z
L2
BC3
FBM2125HM330-B
R70
103
BC17
104Z
— 62 —
D+5V
BC7
PIN SHORT
T1
104Z
FBM2125HM330-B A+5V
L4
1
IN
BC8
+ PIN SHORT
T2
104Z
BC6
EC20
FBM2125HM330-B
104Z 10V220 M+5V
L5
BC9
PIN SHORT PIN SHORT
T6 T3
104Z
FBM2125HM330-B
+12V
L6
AUGND
+
BC10
CPU
R188 R187
104Z
0R0
0R0
EC23
16V100
CN2
D+5V
1
+12V
2
GND
3
GND
4
+5V PG3A
820 R7 1 2
/RESET GND
DD7 3 4
DD7 DD8
DD6 5 6
DD6 DD9
DD5 7 8
DD5 DD10
DD4 9 10
DD4 DD11
DD3 11 12
DD3 DD12
DD2 13 14
DD2 DD13
DD1 15 16
DD1 DD14
DD0 17 18
DD0 DD15
19 20
GND (KEY)
220 R32 21 22
DMARQ GND
820 R8 23 24
/DIOW GND
820 R9 25 26
/DIOR GND
220 R33 27 28
IORDY CSEL
820 R10 29 30
/DMACK GND
220 R34 31 32
INTRQ /IOCS16
820 R11 33 34
DA1 /PDIAG
820 R12 35 36
DA0 DA2
R69 820 R13 37 38
/CS0 /CS1
103 39 40
/DASP GND
MASTER GND
SLAVE GND
CSEL GND
C74 102K
AUDIO L
C73
GND
102K
GND
AUDIO R
BK2125HS470-B
D-OUT
L12
D-OUT
R164
L13 471
BK2125HS470-B
HCU-R700
DGND
AGND
MGND
DD8
DD9
DD10
DD11
DD12
DD13
DD14
DD15
820 R14
820 R15
R60 DD7
682
R61 DD6
682
R62 DD5
682
R135 DD4
682
R174 DD3
682
R175 DD2
682
R176 DD1
682
R177 DD0
682
DIGI ATAPI
RO DSP
AUGND DSP
LO DSP
CSEL CPU
SLAVE CPU
MASTER CPU
DECINT CPU
WRN CPU/DSP
RDN CPU/DSP
DECCSN CPU
MA BUS CPU
MD BUS CPU/DSP
— 63 —