PDP-427XD
161
5
6
7
8
5
6
7
8
C
D
F
A
B
E
10. GENERAL INFORMATION
10.1 POWER ON SEQUENCE
1
: The remote control (or KEY) signal is input to the IF microcomputer.
2
: The IF microcomputer sends the operation data to the main microcomputer.
3
: The main microcomputer issues a startup command to the MOD microcomputer.
4
: The MOD microcomputer controls the relay of the power MOD of the PDP to startup the power of the PDP.
MOD
Microcomputer
Power MOD
RELAY Control
BUFF
REM
BUFF
Q8303
BUFF
REM
infrared
receiver
Side Keys
IF_UCOM
IC8301
MAIN_UCOM
IC8401
SR OUT Jack
JA9004
4
1
2
3
1
SR_OUT
KEY_2
KEY_1
MTXD_MD
MRXD_MD
REQ_MD
SR_IN
TXD_IF
RXD_IF
CE_IF
REQ_IF
BUSY_IF
BUFF
Q4005