Sony Walkman MZ-N910 Service Manual page 49

64 63
FFCLR1 1
XWK4
2
XWK3
3
XWK2
4
XWK1
5
VRMC 6
FFCLR
LVB 7
HVB 8
VSTB 9
VC
XRST1
VC1 10
POWER
SWITCH 1
VCO1 11
VO1
12
XRST1
L1 13
PWM
L1 14
PGND11 15
VC1G 16
VG
REF2
VF2
17 18
CAP_C_LIM 1
VI2DET 2
3
A/D
I_SEL 4
5
AD_SEL
VI2
6
VI2
VI
VOLTAGE
REFERENCE
IC901 SC901580EPR2
62 61 60 59 58 57 56
CONTROL
VC2
LVB
DRIVER
XRST1
VF1
XRST2
XRST1 XRST2
VC
START-UP
SET-UP
DC/DC
CONVERTOR
VG
19 20 21 22 23 24 25
IC951 SC901582EPR2
24 23 22
OSC
VI
TIME
DIVIDER
SW5
SW4
VREF
7 8 9
55 54 53 52 51 50
(HP AMP)
AMP1
AM2
REF1
REF2
REF3
REF4
VG
REF5
SERIES PASS
VC2
REGULATOR1
REF3
VG
SERIES PASS
REGULATOR2
REF4
VG
SERIES PASS
VF2
REF5 REGULATOR3
XRST1
POWER
XRST2
SWITCH 2
SEQSEL
XRST2
XRST1
VC
VB
PWM
VB
VC
VG
VB
VF2
26 27 28 29 30 31
21 20 19
SW6
NSW4
VREF
18
N1
NSW3
LOGIC
SIGNAL
17
RECEIVER
NSW1
LOGIC
SIGNAL
16
RECEIVER
N2
15
VO
VREF
N3
14
DELAY
VCR
BATT
SEL
VG
10 11 12
MZ-N910
49
VC
BANDGAP
48 VREF
REFERENCE
47 REGC3
46 REGC2
45 REGC1
44 REGI1
43 REGO1
VC2
42 VC2
41 REGO2
40 REGI3
39 REGO3
38 CVIN
37 VCO2
36 VO2
35 L2
34 L2
33 PGND2
VG
32
RF1
I_CTL1
I_CTL2
WK_DET
PWR_WAKE
49