Hytera PT580 - Troubleshooting Flow Chart; TX Circuit Troubleshooting

Service Manual
20
Pin No. Name Function Valid Level
10
11
50
55
/LCD_CS
A1
LCD_RST
LCD_BACKLIGHT
67
66
I2C-SCL
I2C-SDA
-
49 L_INT
Reserved
-
44
45
AUDIO_PA_ON
INT/EXT AUDIO
Audio control -
37 ON/OFF Power-on/off control H
39
40
41
ENC_S
ENC_A
ENC_B
Encoder switch signal -
68 ACC_DET Reserved -
38 KEY_LIGHT Key light control H
48
50
IN-SPK-
IN-SPK+
Internal speaker -
2
3
SPK-
SPK+
Speaker audio -
J7004: 30-Pin LCD Interface
Pin No. Name Function Valid Level
1
23
26
VSS Ground (digital) -
2-17 LCD-D0----LCD-D15 LCD data -
18 CS LCD chip select L
19 RESET Reset signal -