SCL#
SDA#
KEY_AD
POWER
KEY_AD
POWER
TWT118_RST
SDA#
SCL#
MCU_VDD
MCU_VDD
MCU_VDD
MCU_VDD
POWER_ON
RESET
MUTE
SCL
SDA
C7
100N
C7
100N
R110
10
R110
10
1
2
R004
10K
R004
10K
1
2
R001
1.2K
R001
1.2K
1
2
R3
10K
R3
10K
RESET
RESET
L24
601
L24
601
1
2
SW3
SW3
MS
MS
1
2
R23 10K
R23 10K
TP24
TP24
1
2
SW6
SW6
R24
10
R24
10
1
2
R003
300
R003
300
1
2
SW4
SW4
C65
1U
C65
1U
1
2
SW5
SW5
1
2
R002
220
R002
220
R100
10
R100
10
RESET
1
PTA4/MS
2
VDD
3
VSS
4
PTA3
13
PTA2
14
PTA1
15
PTA0
16
PTB7/SCL
5
PTB6/SDA
6
PTB2
10
PTB3
9
PTB4
8
PTB5/SS
7
PTB1
11
PTB0
12
D01
MC9S08QG8
D01
MC9S08QG8
R14
33
R14
33
A0
1
A1
2
A2
3
A3
4
SDA
5
SCL
6
NC
7
VDD
8
N9
24C02
N9
24C02
C6
10UF
C6
10UF
1
2
R05
470
R05
470
8.0 ELECTRICAL DIAGRAM
PAC133 MAIN BOARD CIRCUIT DIAGRAM (MCU&KEY)