Sharp GX20 Service Manual page 122

KEY PWB-B (1/2)
A
IC302
NJM2871F03
3.0V REGULATOR
B
1 CONT
GND
2
NB
3
C340
0.1
D304
C 1SS388
D
E
VBAT
F
31
TPB333
TPB335
G
D305
1SS388
TPB332
TPB334
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
CONFIDENTIAL
VBAT
VIN 5
VOUT 4
Q303
2SC4617 R
0V
C341
1
R325
1.2K
R327
68K
1 Vin
Vss
2
ON/OFF
3
IC306
TK71635S
HIGH SPEED LDO
REGULATOR
1.67V
1
C321
1.68V
2
5-24 (2-C) 0.01
1.36V
CHGIN
3
TP321
TP320
VBAT_BB
5-29 (10-C)
VBAT_AP
VBAT_S
IC303
TK11129CSIL
2.9V REGULATOR
2 3
VBAT
TP346
0V
TP345
VBAT
5
Vout
4
Np
D309
CUS01
D306
CUS01
D303
RB160M30
6
5
4
R348
Q305
0.18
CPH6311
(1/2W)
Q308
2SA1955 A
4
2.9V
VTCXO
VTCXO
G
TP317
2.9V
VSYNTH
VSYNTH
0V
G
2.9V
VRF
VRF
5
5-30
(1-F)
6