Sharp HR-MB3 Service Manual page 21

IC401
TPS62200
1.6V DC/DC DOWN
L404
15uH
+B
+B
VCC SW 4
1
C403
10u/6.3V C411
GND
2 33P
(CH)
EN FB 4
3
R410 C432
560K 33P
(CH)
C412
D
47P
(CH)
Q400
G
MCH3405
S
R413
100K
+B
1 VCC SW 5
C404
10u/6.3V
R411
GND
2 220K
EN FB
3 4
IC402
R412
680K
TPS72201
D
1.6V
Q401
G
EGULATOR
MCH3405
S
R414
100K
L402
+B 15uH
+B
1 VCC SW 5
C405
10u/6.3V
R415
C407
2 GND
680K
10P
(CH)
3 EN FB 4
R435
IC403 C408
R416
100K
150P
120K
(CH)
TPS62220
3.3V DC/DC DOWN
L403
15uH
+B
VCC SW
1 5
C406
10u/6.3V
C409 R417
GND
2
10P 680K
(CH)
EN FB 4
3
IC404
R418
C410
120K
150P
TPS62220
(CH)
3.3V DC/DC DOWN
L405
22uH
C422
D407
10u/6.3V
FS1J3
5 4
VIN SH
SW GND FB
R446
0
1 2 3
IC405
G
MM3097
R422
0
DC/DC UP
7
TL412
R448
0
R419
470K
C417 C419
10u/6.3V
0.1u
IC406
80827CNN
R420
330K RESET
+B
TL413
C420
C418
10u/6.3V 0.1u
+B
TL414
C413 C415
10u/6.3V
0.1u
TL415
+B
C414 C416
10u/6.3V 0.1u
D
Q406
MCH3405
S
C426
R423
1u/35V
6.8
8
Figure 6-8 SCHEMATIC DIAGRAM (8/12)
+B
+B
R421
220K
TL417
R449
100
2 1
C423
0.22u
3 4
+B
+B
+B
+B
+B
9 10
6 – 8
TO ASIC
+B
VCC3.3V
VCC1.6V
HDD_ON
CHARGER_CE_CONT
AC_DET
DSP_RST
BATT_DET
CHARGE_ON/OFF_DET
CVCC_CTL
DCDC_EN
CE_CONT
LCD_BL_ON
RTCDVDD1.6V
GND
+B
TO AIO
POW_ON_SW2
FUNCTION_SW 2
VCC3.3V
GND
TO MEMORY
HDD3.3V
VCC3.3V
GND
TO LCD
VCC3.3V
LCD_BL_POW
LCD_BL_GND
GND
TO USB
VCC3.3V
GND
USB_VBUS
11
HR-MB3
12