Sharp GX30 Service Manual page 102

KEY PWB-B (1/3)
A
KEY PWB-B (1/3)
RECEPTION SIGNAL
TRANSMISSION SIGNAL
SPEAKER SIGNAL
B
C
D
MODESEL3
5-23 (4-G)
5-23
USB_D-
(6-E)
5-23 (6-E)
USB_PU
E
5-23 (2-F)
USC[1]
5-23 (2-G)
USC[4]
5-23 (4-G)
USC[6]
USB_CURRENT_CTL
5-23
(6-D)
USB_CHG_EN
F
TCXOEN
5-25 (1-B)
G
BS2
5-25
(2-H)
BS4
5-25
(2-E)
SYNTHDATA
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
KEYPADCOL[0-4],KEYPADROW[0-4],POWONKEY
G
5-23 (6-B)
MODESEL3
G
USB_D+
G
USB_D+
USB_D-
G
5-23
USB_DET
G
USB_DET
(6-E)
USB_PU
G
USC[0]
G
USC[0]
USC[1]
G
5-23
G USC[2]
USC[2]
(5-F)
USC[4]
G
USC[5]
G
USC[5]
USC[6]
G
G USB_CURRENT_CTL
G
USC[0]
TP103
USC[1]
TP104
USC[2]
TP105
TP118
USC[4]
TP107
USC[5]
TP108
USC[6]
TP109
G
G
BS1
G
G
BS3
G
TP114
G
SYNTHCLK
TP115 SYNTHDATA
G
TP116
G
SYNTHEN
2 3
R292 R294
150K 120K
R293 R295
150K 120K
R281
0
R282
1.8K
R283
2.2K
TCXOEN
BS1
BS2
BS3
BS4
SYNTHCLK
SYNTHEN
4
5.2V
CHGIN
IC115
R284
27K
XC61CN27
0V
REGULATOR
0V
3.54V
C229
2 1
3.53V
0.001
3 4
TP180
IC116
RQ5RW45B
4.5V REGULATOR
D103
RB160M30
D106
1 GND CE 4
RB521S30
2 VDD VOUT 3
Q101
2SK3019
BATTYPE
5-23
G
(6-C)
5
0.15V
S1 D1
0.15V
G1 D1
3.69V
S2 D2
3.69V
G2 D2
Q108
ECH8603
R131
270
3.53V
D
3.52V
G
S
3.69V
6