Block Diagram -Power Supply Section - Sony MZ-NH1 Service Manual

4-3. BLOCK DIAGRAM – POWER SUPPLY Section –
(Page 22)
SDO0 SCK0
E
+5.5V
218 233 229
HPOUT B+ REGULATOR
IC902
D_ENVG
297
XRST
136
REG4 B+
DACVREFH 141
REG5 VSTB B+
REG5 TSBV B+
MDVCC_CTL
204
181
RECP
231
RECP_MON
REG F B+
REG5 OSC B+
USB IF VDD
+3V
L1 B+
REGULATOR
L2 B+
IC502
PWM_L1 299
SWITCHING
300 Q501
PWM_L2
VBUS_DET 250
USBHOLD 316
317
SUSPEND
RST_CONT 132
VB_MON 121 VB B+
VBUS_MON 129 VBUS B+
HIDC_MON 127 DC IN B+
MZ-NH1
RESET SIGNAL
GENERATOR
B+ SWITCH
Q604, 611
OR GATE
IC604
87 64 94 59 58
VOLTAGE
DETECT
IC605
91 DVDD_OUT
VG 83
+1.2V
REGULATOR TSBV_IN 101
IC603
REG_IN
97
DVDD_IN 90
REG5 B+ 98 REG_OUT
VSTB_IN 105
D609 D610
VREF_IN 18
VC B+ 61 VIF POWER CONTROL
VREC B+
IC601 (2/2)
13 VC
14 VC
VREC
112
VREC_IN 80
106 VSTB_OUT
VREC_IN 81
102 TSBV_OUT
67 RECP VRECO_1 5
VRECO_2
4
+1.2V
REGULATOR
L1_1
7
IC602
L1_2 6
93 OSC_OUT
DW_1T 3
B+ SWITCH
108 V33RO
DW_1B 2
Q801, 802
+2.5V
REGULATOR
DW_3T 26
IC804
DW_3B 27
D603
VB B+
L3_2 25
DDC3 B+ 21 V3O_1
L3_1 24
22 V3O_2
28 V3FB
VBUS 54
66 VG2
VPDRV 36
73 VG3
PVBUS 88
VBUSSEL
43
51 VBUS_DET
CLP
38
86 HOLD_OUT
CLM 42
99 SUS_IN
POWP1 37
95 RST_IN
POWP2 41
SYSTEM CONTROLLER
IC801 (3/3)
SDO0
58 DATA
SCK0
60
SCK
59 STRB
34 XRST2
17 XRST1
VSTB
VCO2 VC01 VG
B+
B+ B+ B+
IC903
POWER CONTROL
IC901
24 VG
11 VCO1
40 VCO2
9 VSTB
57 VREF
REG1 B+
54 REGO1
REG2 B+ 51 REGO2
REG3 B+ 47 REGO3
B+ SWITCH
MDVCC
Q502, 503
D602
B+ SWITCH
Q603
B+ SWITCH
Q605
VOLTAGE
LIMITER
Q606, 607
Q404
219 73 256 257 207 220
N1_VI_CTL 237
CHG_PWM
240
CHG_I_CTL2 221
CHG_I_CTL3 222
CHG_MON 122
A7CAL_SW 194
XRST_CHG_IC
208
CHG_SEL 230
CHG_IAMP_CAL 241
BATT_MINUS_MON 130
XGUM_ON
198
23 23
CLK 63
VRMC 6
XWK3 3
MUTEON 45
XWK4
XWK4 2
XWK2
XWK2 4
XWK1
WAKE UP SWITCH
XWK1 5
Q951
REGI1 55 DDC3 B+
REGI2 52
REGI3 48
HVB 8
VB 27
FCRAM_VDD
B+ SWITCH
LG 25 Q883, 884
FFCLR
VO1 12
VO2 39
D884
D883
DRAM_
LEVEL
HOLD_DET
SHIFT
Q882
D881
DRAM_
REGULATOR
VDD_CLR
CONTROL
Q881
DRAM_ALONE
D882
VB B+
8
PWR_WAKE
VI 6
IN1– 12
TYPE1 11
TYPE2 16
CHARGE CONTROL
REGULATOR
IC401
20 I_CTL1
RF1 26
VO 32
BAT+ 31
4 VI_CTL
7 CHG_CTL
BAT– 25
29 I_CTL2
23 I_CTL3
22 A/D
CHG_SW1 30
13 A7CAL_SW
14 XRESET
RS 24
18 I_SEL
CHG_SW2 5
27 IAMP_CAL
S431
(BATTERY INSERT DETECT)
MZ-NH1
CLK
(Page 21)
A
REC KEY
(Page 22)
D
MUTEON
(Page 22)
C
XWK1, XWK2,
XWK4
(Page 22)
B
REG5 B+
+2.2V
REGULATOR VB B+
IC882
VOLTAGE
DETECT
IC881
CN451 (2/2)
(USB)
3 VBUS
1 DCIN6V
11
12
Q401
D401
LITHIUM-ION
RECHARGEABLE
BATTERY
LIP-4WM
CHARGE
CONTROL
Q432
CHARGE
CONTROL
Q431