Arcam RDAC - 서비스 매뉴얼 - 페이지 3
{카테고리_이름} Arcam RDAC -에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Arcam RDAC - 14 페이지. Wireless usb transmitter
Arcam RDAC -에 대해서도 마찬가지입니다: 서비스 매뉴얼 (14 페이지), 자주 묻는 질문 (4 페이지)
Main micro
circuit page 2
The main micro at location IC107 (on the diagram this is split into two area these are micro
power and config + Micro I/O) we will deal with Micro power and config 1
Micro power and config
Two separate power supplies are required by the AT91SAM these are taken from 3V3 and 1V8
for the processor core – the micro is programmed with bespoke Arcam code the oscillator for
the micro is at X101 and runs at 4MHz the TDI TDO TCK TMS ERASE NRST pins are for
development Debug use and the connecter at location CON103 is not fitted to production items
Micro I/O
Pin descriptions
Pin name
SPDIF INT
Source
Mute RLY
DAC MUTE
ENABLE KLEER
ENABLE SPDIF
SERIAL UC to KLEER Serial control to KLEER wireless option
SERIAL KLEER to UC Serial data from KLEER to UC
SCL
SDA
Enable LEDS
LED 0
LED 1
LED 3
All manuals and user guides at all-guides.com
Description
Interrupt flag from the SPDIF receiver
To source select TACT switch
Control of mute relay via TR100
DAC MUTE signal to Pin 25 of Wolfson DAC at location IC301
To MUX at location IC205A
To MUX at location IC202A
To EEprom at location IC108 / DAC at location IC301 / USB receiver at
IC103
To EEprom at location IC108 / DAC at location IC301 / USB receiver at
IC103
LEDs on control
Binary select for LED control via 3 – 8 line decoder at location IC102
Binary select for LED control via 3 – 8 line decoder at location IC102
Binary select for LED control via 3 – 8 line decoder at location IC102
st
.