Service manual
GX30
5 – 24
CONFIDENTIAL
Figure 20 SCHEMATIC DIAGRAM (18/22)
789
10 11
12
( ) : Not Mount
EXTERNAL CONNECTOR
5-20 (9-G)
5-20 (9-G)
5-20 (10-H)
USBD+/RXD
CPU_USB_D+
CPU_USB_D-
REG33
PU15
GND3
PUEA
MODESEL1
MODESEL2
UART_RXD
UART_TXD
CPUVDD
UART_RTS
BSYNC
UART_CTS
B DATA
BCNT
MODESEL3
TXANAOUT
RXANAIN
GND1
RXANAOUT
TXANAN
NC
BDATA/CTS
BSYNC/RTS
USBD-/TXD
GND2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VUSB
NC
VINT
3.0V
CHGIN
5.2V
G
D
-
E
N
NC
Vss
Vin
CE
Vout
NC
1
2
3
4
5
VBAT
G
BT_POWER_ON
G
BT_RESET
G
BT_PCMCLK
G
BT_PCMOUT
G
BT_PCMSYNC
G
BT_PCMIN
G
BT_RXD
G
BT_CTS
G
BT_TXD
G
BT_RTS
VBUS_IN
5.0V
GND
Vcc
1
2
3
4
5
1
2
3
4
5
6
TP514
TP515
Vfb
VOUT
PC
1
2
3
ABC
3
2
1
6
5
4
9
8
7
on/off
Vin
PE
GND
ACL
GND
BOTTOM VIEW
1
1
0V
0V 0V
23
1
0V
2.97V 0V
32
2
3
4
5
6
7
8
9
ENT_CTL
TP516
TP517
TP518
TP519
1
2
34
5
6
NC
NC
NC
IN
GND
GND
OUT
GND
GND
1
2
3
4
5
6
Feed
point
NC
GND
NC
NC
NC
1
2
34
5
6
NC
GND USB
USB D+
USB D-
USB VBUS
Power Supply
Reserved
Synchronisation
Clock
Manufacturer
Specific
GND
Reserved
(Reserved)
Manufacturer
Specific
(Power Supply)
RTS
Not connect
GND
GND UART
CTS
RXD
TXD
(reserve)
Manufacturer
Specific
(Power Supply)
Audio-OUT
Not connect
GND (Audio)
GND UART
Audio-IN
RXD
TXD
USB UART Hands Free
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TP508
VINT
3.0V
NC
TP523
TP524
TP525
TP526
GND
GND
GND
GND
VCC
VDD18V
VCC±IO
UARTTX
PCMOUT
PCMCLK
SPIMOSI
USBP
UARTRX
PCMSYNC
PCMIN
SPICLK
SPIMISO
USBN
UARTCTS
XTAL±IN
PIO5
PIO4
SPICSB
UARTRTS
PIO8
XTAL±OUT
PIO6
PIO7
PIO2
RESET
PIO3
PIO1
PIO0
RF±IO
ABCDEF
1
2
3
4
5
6
6 12182430
1 7 13 19 25 31
2 8 14 20 26 32
3 9 15 21 27 33
4 1016222834
5 11172329
1
2
3
45
6
7
8
9
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
NC
NC
NC
TP532
TP529
TP531
TP530
TP533
TP536
VINT
NC
NC
NG
ND
NS
ND
1
23
4
NC
NC
CHGIN
5.2V
PG
PD
PS
PD
1
23
4
TP535
TP537
VINT
3.0V
0V
0V
2.97V
2.89V
10
17
0.01V
0.01V
0V
0V
R530
100
R531
100
R532
100
IC502
BU7870KN
USB CONTROLLER
R505
1.5K
C508
0.1
C509
0.1
R513
10K
R535
0
R536
0
V513
100P
R540
0
R509
18K
C510
1
R507
0
D503
RB160M30
C507
1
R511
47K
R
503
6
IC505
XC620930
REGULATOR
C516
1
R523
470K
C512
1
R527
0
C518
0.1
R515
470K
R516
470K
R517
470K
R504
470K
IC507
TC7SET00FU
LOGIC
D504
HN2S01FU
R518
100K
R519
100K
R520
47K
C511
0.01
Q501
RT1N144 U
R508
2.7K
IC503
TK73840B
REGULATOR
V512
15P
V514
15P
R514
470K
IC504
USBUF2W6
USB EMI FILTER
CN503
BLUETOOTH
AERIAL TERMINAL
AN501
BLUETOOTH AERIAL
R542
0
CN502
R522
10K
R528
0
R529
0
Q503
RT1N144 U
IC506
UGNZ2
BLUETOOTH
MODULE
C522
2.2
R543
0
R544
0
R545
3.3K
R550
100K
R552
100K
R547
100K
R558
100
V555
15P
R566
270K
Q504
EC4301 C
R502
0
R501
0
Q505
EC4401 C