Pioneer Elite PRO-R06U Учебное пособие - Страница 6
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POWER ON SEQUENCE
PDP
REM
infrared
receiver
BUFF
REM_B
MR
BUFF
IC7203
SR_IN
SR Circuit
Q7603-Q7606
1 : The signal from the remote control unit (or a key signal) is input to the IF microcomputer.
2 : The IF microcomputer supplies the power to the main microcomputer and MOD microcomputer.
3 : The IF microcomputer transmits operation data from the remote control unit (or keys) to the main microcomputer.
4 : The main microcomputer issues a startup command to the MOD microcomputer.
5 : The MOD microcomputer controls the relay of the PDP Power MOD and starts the power-on sequence of the PDP.
6 : The main microcomputer controls the relay of the MR Power MOD and starts the power-on sequence of the MR.
Keys on the
front panel
KEY_AD2
1
1
2
IF_UCOM
V+3_3V_UCOM
IC5002
3
TXD_IF
RXD_IF
CE_IF
REQ_IF
BUSY_IF
6
MOD
Microcomputer
BUFF
BUFF
BUFF
MTXD
MRXD
IC7203
REQ
STB_MT
BUFF
IC7201
Inverter
Q5001
4
ACTIVE
PM_SW
IC4212
MAIN_UCOM
IC5206
Power MOD
STB Control
Power MOD
5
RELAY Control
Power MOD
6
RELAY Control