Power On Sequence - Pioneer XV-DV55 Service Manual

XV-DV55

7.1.4 POWER ON SEQUENCE

Reset start
• The terminal XRESET (Pin 11) starts by "H".
Microcomputer
initialization
Model/inducing
• The input of P47-55 input is seen and inducing is distinguished.
distinction
Demonstration mode
permission
Yes
Demonstration mode
demonstration
mode?
Yes :Power ON
System power supply on
DVD microcomputer start-up
Relay release
Demonstration mode
* If the pulse is not input to the terminal P26 AC between about 60ms, the microcomputer enters
the memory backup mode . The memory backup mode inside does not process all.
* The returns from the memory backup mode when there is a standing up input in the terminal P11(XRESET).
66
Initialization routine
No
Main loop processing
No
• terminal (Pin 76) POWER "H"
• Only function DVD time . Please refer to DVD single goods for the start-up sequence of the
terminal (Pin 87) DVD RESET "H" DVD.
Please refer to DVD single goods for the start-up sequence of DVD.
• The speaker relay is turned on from power on about four seconds later.
Extended port RELAY ON/OFF terminal "H" of VOLIC
• Release the system mute about four seconds later from mute release and power on
XLINEMUTE (Pin88) "H"
* However, mute is not released at the following.
When a main volume is 0
At the error of no lock to the input signal of the DIGITAL system input
• Whether the demonstration mode is done from the
backup data is distinctions
• The shipment setting is demonstration mode ok.
standby setting
standby