Service manual

GX30
5 – 15
CONFIDENTIAL
Figure 11 SCHEMATIC DIAGRAM (9/22)
A
B
C
D
E
F
G
H
123
45
6
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
KEY PWB-B (1/3)
KEY PWB-B (1/3)
RECEPTION SIGNAL
TRANSMISSION SIGNAL
SPEAKER SIGNAL
5-23 (6-B)
5-23
(6-D)
5-23 (4-G)
5-25 (1-B)
5-25
(2-H)
5-23 (2-G)
5-23 (2-F)
5-23
(5-F)
5-23 (6-E)
5-23 (4-G)
5-25
(2-E)
5-23
(6-C)
5-23
(6-E)
5-23
(6-E)
G
USC[5]
G
USC[6]
TP103
G
USC[0]
TP104
TP105
TP118
G
KEYPADCOL[0-4],KEYPADROW[0-4],POWONKEY
G
USB_CHG_EN
G
USB_CURRENT_CTL
TP107
CHGIN
5.2V
G
MODESEL3
TP108
G
USB_D+
G
USB_D-
TP109
G
USB_DET
G
BATTYPE
G
USB_PU
G
USC[1]
G
USC[2]
G
USC[4]
G
BS1
G
BS2
G
BS3
G
BS4
G
SYNTHCLK
G
SYNTHDATA
G
SYNTHEN
G
TCXOEN
TP114
TP115
TP116
1
2
3
4
56
7
8
GND
NC
Vout
Vin
1
2
3
4
NC
TP180
CE
VOUTVDD
GND
1
2
3
4
MODESEL3
USB_D+
USB_D-
USB_DET
USB_PU
USC[1]
USC[2]
USC[4]
USC[5]
USC[0]
USC[1]
USC[2]
USC[4]
USC[5]
USC[6]
USC[0]
USC[6]
USB_CURRENT_CTL
BS1
BS2
BS3
BS4
TCXOEN
SYNTHCLK
SYNTHDATA
SYNTHEN
MODESEL2
G1
D2
G2
S1
D2
S2
D1
D1
0.15V
0.15V
3.69V
3.69V
0V
0V
3.54V
3.53V
3.53V
D
S
G
3.69V
3.52V
D103
RB160M30
Q101
2SK3019
R131
270
R128 91K
R283
2.2K
R284
27K
Q108
ECH8603
C229
0.001
IC115
XC61CN27
REGULATOR
R281
0
R282
1.8K
IC116
RQ5RW45B
4.5V REGULATOR
C235 1
C236 1
R292
150K
R294
120K
R293
150K
R295
120K
D106
RB521S30