Hytera HD785 - 6 Interface Definition

Service Manual Interface Definition
25
6. Interface Definition
J1601: 50-Pin Interface
Pin No. Name Function Valid Level
1 AF-CODEC-TO-50PIN Analog audio signal output/input /
2, 5, 49 GND Power supply: ground (analog) /
3 AF-50PIN-TO-CODEC Analog audio signal output/input /
4
6
EXT-MIC+
EXT-MIC-
External MIC interface /
8
10
12
14
16
IO5-OPT
IO4-OPT
IO3-OPT
IO2-OPT
IO1-OPT
GPIO pin of the option board L/H
7 3V6D Power supply: 3.6V /
9
11
USB-D+
USB-D-
USB data cable /
13 EMERGENCY Emergency key L
32
43
DGND Power supply: ground (digital) /
18 GPIO GPIO /
20 LED-K-KEY LED indication for key operation L
15
17
19
21
KB-R1
KB-R2
KB-R3
KB-R4
Keyboard row L
22 KB-C4 Keyboard column /