Block Diagram - Power Supply Section - Sony Walkman MZ-RH1 Service Manual

6-3. BLOCK DIAGRAM – POWER SUPPLY Section –
SO0, SCK0, FS4,
XCS_PWR_IC
(Page 22)
C
SYSTEM CONTROLLER
REG5_REG
IC801 (3/3)
POWER SOURCE
LEVEL SHIFT
XDRAMVDD_SEL 264
SELECT
Q983
Q984
FCRAMVDD
D983
DRAM HOLD
DRAM_HOLD_DET 128
DETECT
Q982
DRAM_ALONE 265
DRAM_VDD_CLR 263
+2.3V
EBIVDD,
REGULATOR
FLASHVDD
IC804
XRST2_DET 204
OR GATE
XRST 135
IC604
VOLTAGE
DETECT
IC602
+1.2V
DACVREFH
93 REGULATOR
IC802
DRAMVDD0 -
DRAMVDD4
DISCHARGE
DRAMVDD_DISCHG 266
SWITCH
Q802
HIDC_MON 122
VB_MON 116 VB
VBUS_MON 124 VBUS
VBUS
USBHOLD2 236 DETECT 3.3VREG
Q603
PH2 201
VBUS_DET
VBUS_DET 221
USBHOLD
USBHOLD 288
SUSPEND
SUSPEND 286
RST_CONT
RST_CONT 170
USBIC_SLEEP
USBIC_SLEEP 194
XCS_REC_USB
XCS_REC_USB 218
RECP
RECP 176
S401
XGUM_ON 181
(BATTERY INSERT DETECT)
MDVCC_CTL
MDVCC_CTL 303
VBUS_VB_CTL
VBUS_VB_CTL 237
XI_SENSE
XI_SENSE 195
USB_CHARGE
USB_CHARGE 209
CHG_PWM
CHG_PWM 211
CHG_CTL
CHG_CTL 238
I_SEL1
I_SEL1 196
I_SEL2
I_SEL2 197
CHG_MON
CHG_MON 117
CHG_SEL
CHG_SEL 205
IAMP_CAL
IAMP_CAL 212
IAMP_CTL
IAMP_CTL 239
IAMP_CAL_MODE
IAMP_CAL_MODE 177
BATT_MINUS_MON 125
MZ-RH1
POWER CONTOL
IC601 (2/2)
SO0
59 DATA
SCK0
58 SCK
FS4
+2.2V 60 CLK
VBUSSEL2 64
REGULATOR
IC982
+3.1V
DETECT VB
IC981
D608
REGULATOR 2.1VREG_IN 103 V33R
ON/OFF
D607
Q981
REG_TSBV 102 TSBV_OUT
REG4_DVDD 91 DVDD_OUT
87 RST_OUT
REG5_REG REG_OUT
98
VSTB VSTB_OUT
106
13 VC
14 VC
61 VIF
VBUS_DET
51 VBUS_DET
USBHOLD
86 HOLD_OUT
SUSPEND
99 SUS_IN
RST_CONT
95 RST_IN
USBIC_SLEEP
94 SLEEP_IN
XCS_REC_USB
56 LATCH
RECP
67 RECP
OSC B+
OSC_OUT 93 SWITCH
Q608, 609
VREFIN 18
V33RO 108
TSBV_IN 101
DVDD_IN 90
B+ SWITCH
Q610, 611
REG5_OSC
+1.5V
1.5V_AVDD
REGULATOR
1.5V_DVDD
IC606
REG_IN 97
+3.3V
VSTB_IN 105
VCO1
3.3VREG REGULATOR
IC607
+1.2V
REG_F REGULATOR
IC605
(FOR HI-SPEED)
+1.5V
REGULATOR
IC608
VBUS 54
VPDRV 36
VBUS
VBUSSEL 43
VBUS LIMITER
CLP 38
Q441, 442
L5_1 45
L5_2 49
POWFB 46
VREC
B+ SWITCH
MDVCC
VRECIN 80
Q501, 502
VRECIN 81
VREC 112
DW_1T 3
DW_1B 2
23 23
POWER CONTOL
IC901
SO0
58 DATA
SCK0
SCK
60
FS4
63 CLK
XCS_PWR_IC
59 STRB
Q902
29 VGSEL1
17 XRST1
34 XRST2
57 VREF
9 VSTB
VCO2 40 VCO2
41 VCIN
37 L2
38 L2
VCO1 11 VCO1
10 VC1
VC1 13 L1
14 L1
+5.5V
VG
REGULATOR
(HP AMP)
IC302
VGH
D902, 903
VG 24 VG
REGO1 54 REGO1
REGO2 51 REGO2
REGO3 47 REGO3
+3.1V
VC3 REGULATOR
IC961
B+ SWITCH
Q606
CHARGE CONTROL
B+ SWITCH
IC401
CONTROL
CHG_PWM
Q604
4 VI_CTL
CHG_CTL
7 CHG_CTL
I_SEL1
29 I_CTL2
B+ SWITCH
I_SEL2
Q601 23 I_CTL3
CHG_MON
22 A/D
CHG_SEL
18 I_SEL
IAMP_CAL
27 IAMP_CAL
IAMP_CTL
14 IAMP_CTL
IAMP_CAL_MODE
13 A7CAL_SW
USB CHARGE
VG ON/OFF 6 VI
Q404, 405
TYPE1
11
12 IN1–
16 TYPE2
CURRENT
LIMITER 20 I_CTL1
Q406
XI_SENSE
USB_CHARGE
BATT_MINUS_MON
MZ-RH1
RMC_KEY
(Page 22)
XWK3 3 B
XWK1
(Page 22)
D
XWK1 5
REC_KEY
XWK2 4
HALF_LOCK
XWK4 2
MUTEON
A (Page 22)
MUTEON 45
VB
VO2 39
VO1 12
VB 27
HVB 8
LG 25
REGI1 55
REGI2 52
REGI3 48
CN441 (2/2)
(USB)
1 VBUS
LITHIUM ION
RECHARGEABLE
BATTERY
(LIP-4WM)
1PC. 3.7V/370mAh
BAT+ 31
VO 32
BAT– 25
CHARGE
CHG_SW1 30
CONTROL
Q402
RS 24
CHARGE
SWITCH
CHG_SW2 5
Q401