Power On Sequence - Pioneer PDP-R06G Service Manual

1

7.2.2 POWER ON SEQUENCE

A
PDP
REM
infrared
receiver
B
BUFF
MR
BUFF
IC7203
C
SR Circuit
Q7603-Q7606
D
Descriptions in a call-out are signal names for reference.
REM_B
For wiring numbers on the PDP side, refer to the service manual for the PDP.
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.
E
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.
F
54
1
2
REM_B
Keys on the
front panel
KEY_AD2
1
SR_IN
1
IF_UCOM
V+3_3V_UCOM
IC5002
TXD_IF
RXD_IF
CE_IF
REQ_IF
BUSY_IF
PDP-R06G
2
3
MOD
Microcomputer
BUFF BUFF
BUFF
IC7203
STB_MT
BUFF
IC7201
Inverter
Q5001
4
ACTIVE
PM_SW
2
IC4212
MAIN_UCOM
3
IC5206
3
4
Power MOD
STB Control
Power MOD
5
RELAY Control
MTXD
MRXD
REQ
Power MOD
6
RELAY Control
4