5.
PCB Diagram
5.2.1. Pin Connection
1) CN201
VFD CONTROL
Pin No.
Signal
1
D+12V
2
D+12V
3
D+12V
4
ECO
5
D+3.3V
6
D+5V
7
D+5V
8
DGND
9
VFD_DATA
10
VFD_CLK
11
DGND
12
VFD_CE
13
VFD_RST
14
DGND
4) CN14
KEY CONTROL
Pin No.
Signal
1
KEY_PWR
2
KEY_FUNC
3
GND
4
5
KEY_VOL-
5) ACN1
SPEAKER L
Pin No.
Signal
1
FULL RANGE L+
2
FULL RANGE L-
6) ACN2
SPEAKER R
Pin No.
Signal
1
FULL RANGE R+
2
FULL RANGE R-
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5-3