DP480 Service Manual
15
PIN NO. Port NO.
Port Name
Function
L1
HPL_OUT
MOD1
Output digital MIC signals
M1
HPR_OUT
MOD2
NC
D21
SINK3
NC_SINK3
NC
B12
GPIO_D45
NC
NC
C11
GPIO_D55
NC_GPIO
NC
A9
GPIO_D59
APC_SW2
APC_SW2
C9
GPIO_D105
NC_GPIO
NC
C8
GPIO_D43
APC_SW1
APC_SW1
F15
GPIO_D8
NC_GPIO
NC
F14
GPIO_D9
QT/DQT IN
QT/DQT IN
F13
GPIO_D1
LCD_BL
LCD backlight control
4.7.4.
Feature Description of Semiconductor Devices
Component NO.
Model
Description
IC500
NJM2904
APC, voltage comparison, drive
U21
HS8861
MCU
IC200
24LC512
E2PROM, saves channel frequency data, feature
parameters and modulation parameters
U3
TDA8547TS
Receiver audio power amplification
Q500
RD07S2B
TX final power amplification
Q4
DTA144EE
APC output switch
Q200
DTC144EE
Red LED driver
Q201
DTC144EE
Green LED driver
Q501
RD01MUS1
Transmitter power amplifier drive
Q601
DTC144EE
Audio power amplifier control switch
Содержание DP480
Страница 9: ...DP480 Service Manual 6 4 Circuit Description 4 1 Circuit Diagram of Main Board ...
Страница 76: ...DP480 Service Manual 73 Top Layer Layout Drawing of Main Board ...
Страница 77: ...DP480 Service Manual 74 Bottom Layer Layout Drawing of Main Board ...
Страница 79: ...DP480 Service Manual 76 Top Layer Layout Drawing of Key PCB ...
Страница 80: ...DP480 Service Manual 77 Bottom Layer Layout Drawing of Key PCB ...
Страница 84: ...DP480 Service Manual 81 Top Layer Layout Drawing of Module Board ...