Sony Walkman MZ-R900 Panduan Servis - Halaman 34
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Halaman Cetak
IC551 SC111257FCR2
42 41
40
39
38
37
36
35
34
–
+
VC
–
PRE DRIVER
+
VG
VC
PGNDW
43
H-BRIDGE
WO
44
CONTROL
VMVW
45
VO
46
PGNDUV
47
UO
48
VMU
49
VC
GND2
50
BIAS
CPWI
51
–
+
CPVI
52
–
+
CPUI
53
–
+
COM
54
VC
H-BRIDGE
CPWO
55
CONTROL
CPVO
56
VC
VC
PRE DRIVER
3PHASE
CONTROL
1
2 3 4 5
6
7
8
9
32
33
32
31
30
29
28
VM4
VC VG
VG
PRE DRIVER
VC
VC
H-BRIDGE
CONTROL
27
RI4
26
FI4
25
RI3
24
FI3
VG
23
VG
VC
22
VC
21
GND1
20
PWM24
19
FI1
18
RI1
17
FI2
16
RI2
VC
H-BRIDGE
CONTROL
VC VG
VG
PRE DRIVER
15
VM2
10
11
12
13
14
IC601 XPC18A22FCR2
42
41
40
39
38
37
OUTPUT SW
VC VG DC IN
VC
HI-BRIDGE
VB
43
CHARGE
PRE DRIVER
MONITOR
X2/X4
BATM
44
VG3
DC IN
CONTROL
CHARGE
CHGSW
45
CONTROL
DC IN
RS
46
BATTERY
INP2
47
CHARGER
&
INM2
48
REGULATOR
RF2
49
DCIN
50
DC IN
CHGMON
51
DC IN
DC IN
DC IN
SVREF
52
BANDGAP
DETECT
GND
53
GAIN
54
CHG
55
DREG
56
IC901 XPC18A32FCR2
42
41
40
NC
43
VD
44
SERIES PASS
SERIES PASS
OUTPUT SW
VC2
45
REGULATOR VA
REGULATOR VD
VC
VC
XRST
46
OUTPUT SW
CRST
47
RSTREF
48
VREF
49
VB
VB
50
VC
GND
51
VC
VB
VSTB
CLKSEL
52
VAIFON
53
SYSTEM
FFCLR
54
CONTROL
SLEEP
55
VSTB
CLK
56
1
2
3
4
5
6
32
32
36
35
34
33
32
31
30
29
VG3
VGC
VG
VC2 VG
VG2
VG3
OUTPUT SW
CHARGE
CHARGE
PUMP 2
PUMP 1
VC2
VC
EFM
PRE DRIVER
VREF
BUFFER
CONTROL
VC
VC AMP
VG2
VC
PWM
VC
VG
SYSTEM
SET-UP DOWN
PRE DRIVER
VIO
SW
LEVEL
SHIFT
OUTPUT SW
VIO
VC
1
2 3 4 5 6 7
8
9
10
11
12
13
14
39
38
37
36 35 34
33 32 31 30 29
OUTPUT
OUTPUT SW
SW
SERIES PASS
VG
REGULATOR VIF
POWER
SWITCH 1
VC
VC
BANDGAP
REFERENCE
VC
PWM
VG
VG
POWER
STEP-UP
SWITCH 2
PRE DRIVER
VB
START-UP
OUTPUT SW
7
8
9
10
11
12
13
14
28
C1H
27
C1L
26
VC2
25
VREF
24
CVREF
23
GND
22
DW BT
21
DW TP
20
RF1
19
INM1
18
INP1
17
DTC
16
VREC
15
VRECO2
28
L1
VC
+
27
RF1
–
26
INM1
STEP-UP
PWM
PRE DRIVER
25
DTC1
24
DTC2
+
23
RF2
–
22
INM2
VG
21
PWM1
VG
20
PWM2
VB
VC
VG
19
VG
STEP-UP
OUTPUT
DC/DC
18
LG
SW
CONVERTER
17
PGND2
16
L2
15
NC