Sony PRS-505/SC Service Manual - Page 14

Block, Diagram, Key/power Supply - red

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PRS-505 6-3. BLOCK DIAGRAM - KEY/POWER SUPPLY Section - S873 VOL − S874 VOL + USBBOOT 52 USBCHG 46 RXD 58 TXD 59 RTS 57 CTS 42 POR 22 XM_RESET 23 KSI6 KSI7 KSO0 KEY FLEXIBLE BOARD KSO0 - KSO2 KSI0 - KSI7 FROM POWER SWITCH TO LED CN201 4 SW-STBY 1 ORG LED2 2 RED LED1 LED SWITCH Q1001 X801 32.768kHz X802 4.9152MHz KEY_OUT0 - KEY_OUT2 KEY_IN0 - KEY_IN7 SUB CPU IC801 48 STBY_SW 50 LED_1 3 X2 2 X1 5 OSC2 6 OSC2 STAT1 STAT2 DCDET 14 15 47 USBON 24 USBDET 43 RWRON 20 LOW-BATT-LI 44 BATT-LI 63 AD_ON 21 BATT-DC 1 XRESET 8 ISET2 10 SD-VDD MS-VCC VDD +3.1V REGULATOR IC205 +3.1V REGULATOR IC204 +3.1V REGULATOR IC303 H11 USB_BOOT F14 USB_CHRG B8 UART1_TXD E8 UART1_RXD C9 UART1_RTS E9 UART1_CTS L12 POR M14 XRESET-IN C2 USBLED MAIN CPU IC1001 (3/3) E7 PCSDCARD F7 PCMSCARD G11 PCA3PIO UNREG VPOS VGP GVDD VNEG VEE, GVSS GVCC B− SWITCH Q1814 REGULATOR Q1802 B+ SWITCH Q1805, 1822 D1802 REGULATOR Q1806 B+ SWITCH Q1804 SWITCHING REGULATOR IC1802 D1804 1 SW VIN 6 SS SHDN 54 D1810 D1805 REGULATOR Q1809 DC/DC CONVERTER IC1805 D1801 1 SW VIN 5 NFB 3 SHDN 4 + CURRENT DETECT IC1803 Q472 VOLTAGE DETECTOR IC408 BATTERY CONTROL SWITCH Q801, 802 B+ SWITCH Q402, 405, 406 BUFFER Q403 RESET IC407 5Q CK 1 6 CLR PR 7 Q401 VOLTAGE DETECTOR IC404 V2 VCORE V3 +2.9V REGULATOR IC402 +1.9V REGULATOR IC403 +3.1V REGULATOR IC409 1 LDO 12 TS THP401 STAT1 STAT2 XACPG 2 3 18 USB 20 D401 PSEL 8 CHARGE CONTROL IC401 ISET2 7 D403 OUT 15 - 17 BAT 5, 6 AC 4 S801 RESET VOLTAGE DETECTOR IC802 +2.9V REGULATOR IC406 V1 VOLTAGE DETECTOR IC405 D1805 PS401 8PWR_POS 8PWR_GATE 8PWR_NEG, 8PWR_POS, 8PWR_GATA C (Page 13) 8PWR_NEG VBUS A (Page 12) LITHIUM ION BATTERY 3.7V 600mAh J001 - + DC IN 5.2V PRS-505 14 14

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PRS-505
PRS-505
14
14
S873
VOL
−
S874
VOL +
SUB CPU
IC801
KEY
FLEXIBLE
BOARD
KEY_OUT0 –
KEY_OUT2
KSI0 – KSI7
KSI6
LED
SWITCH
Q1001
2
3
X801
32.768kHz
6
5
X802
4.9152MHz
X1
X2
OSC2
OSC2
STAT2
15
DCDET
47
STAT2
3
XACPG
18
KSI7
BAT
AC
4
OUT
15 – 17
5, 6
USB
20
PSEL
8
ISET2
7
D403
D401
BATT-DC
1
AD_ON
21
BATT-LI
63
VOLTAGE
DETECTOR
IC408
LOW-BATT-LI
44
BATTERY
CONTROL SWITCH
Q801, 802
Q472
ISET2
10
RWRON
20
USBDET
43
USBON
24
XRESET
8
+3.1V
REGULATOR
IC409
V3
+1.9V
REGULATOR
IC403
VCORE
+2.9V
REGULATOR
IC402
V2
+2.9V
REGULATOR
IC406
VOLTAGE
DETECTOR
IC405
VOLTAGE
DETECTOR
IC404
Q401
VOLTAGE
DETECTOR
IC802
S801
RESET
B+ SWITCH
Q402, 405, 406
UNREG
CHARGE CONTROL
IC401
PCSDCARD
E7
PCMSCARD
F7
PCA3PIO
+3.1V
REGULATOR
IC303
+3.1V
REGULATOR
IC204
+3.1V
REGULATOR
IC205
G11
SD-VDD
MS-VCC
VDD
TXD
59
RXD
58
USBCHG
46
USBBOOT
52
XM_RESET
23
POR
22
CTS
42
RTS
57
USB_BOOT
USB_CHRG
UART1_TXD
B8
UART1_RXD
E8
UART1_RTS
C9
UART1_CTS
E9
POR
XRESET-IN
F14
H11
M14
L12
USBLED
C2
MAIN CPU
IC1001 (3/3)
KEY_IN0 –
KEY_IN7
KSO0 – KSO2
KSO0
SWITCHING
REGULATOR
IC1802
SW
1
SHDN
4
VIN
6
B+ SWITCH
Q1804
REGULATOR
Q1806
REGULATOR
Q1802
B+ SWITCH
Q1805, 1822
REGULATOR
Q1809
CURRENT
DETECT
IC1803
B
−
SWITCH
Q1814
DC/DC CONVERTER
IC1805
SW
1
NFB
3
VIN
5
8PWR_NEG
8PWR_GATE
8PWR_POS
VPOS
VGP
GVDD
VEE, GVSS
GVCC
D1801
VNEG
C
8PWR_NEG,
8PWR_POS,
8PWR_GATA
SS
5
D1810
D1804
D1802
SHDN
4
D1805
+
LITHIUM ION
BATTERY
3.7V 600mAh
J001
VBUS
A
–
+
DC IN 5.2V
PS401
D1805
V1
CK
1
RESET
IC407
Q
5
CLR
6
PR
7
BUFFER
Q403
STBY_SW
48
LED_1
50
4
1
SW-STBY
ORG LED2
CN201
2
RED LED1
FROM
POWER
SWITCH
TO
LED
STAT1
14
STAT1
2
LDO
1
TS
12
THP401
(Page 13)
6-3.
BLOCK
DIAGRAM
- KEY/POWER SUPPLY Section -
(Page 12)