95
XR-A9800D
Distinction of
the model and destination
DEMO mode
setting
System
power ON
Release the
relay
Release the
mute
DECK mechanism
initialization
DVD controller
rise up
Standby setting
DEMO mode
permisshion
Power ON
or DEMO ?
Microcomputer
initialization
Reset Start
Standby
Start when pin 11 (XRESET) becomes "H".
Destinguish it by the input condition of pins 1 and 2.
(Refer to the schematic diagram.)
Pin 87 (POWER) : "H"
Only at function is DVD. Pin 3 (DVD RESET) : "H"
Turn the speaker relay to ON after about four seconds after the power is turned ON.
Pin 9, 10 (RELAY ON/OFF) : "H"
Note : The microcomputer enter the memory backup mode if the pulse is not inputted to pin 26 (AC) for about 60 msec.
While the memory is backupped, all the process is not done.
It is revert from the memory backup mode when there is rising edge (
↑
) input at the pin 11 (XRESET).
Release the system mute after about 4.1 seconds after the power is turned ON.
Pin 88 (LINE MUTE) : "L"
∗
However, mute is not released at the following condition.
• When main volume is 0.
• When function is TAPE and DECK mechanism is stopped.
Judge whether it perform the demonstration by
the backup data.
The setting in shipping is demonstration ON.
Initialization routine
No
Yes
Yes : Power ON
No
Main loop process
7.1.5 POWER ON SEQUENCE