Sequence After Power On - Pioneer DV-563A-Sl DV-50A Service Manual

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7.1.9 SEQUENCE AFTER POWER ON

Flow chart from power on to the picture output
STANDBY
Power on operation by a user
(remote controller key or product key)
FL controller receives a message
[FL controller]
FL lighting / outputs a power on signal
(POWER ON: "L"→"H")
[FL controller]
Release the reset for BACK END
(XRESET: "L"→"H")
[BACK END]
Accesses flash ROM and 128M SDRAM
[BACK END]
Accesses FRONT END
[FL controller]
Request communication to
BACK END (FP_XRDY)
[BACK END]
Outputs the communicable signal to
FL controller (FP_ACK)
BACK END – FL controller
communication
The opening picture appears
[FRONT END]
Check the following:
• Slider positioning (INSIDE SW)
• Spindle FG stop
Disc detection (Focus control)
5
6
DV-563A-S
6
7
Spindle turn
Read ID information code
Various setting
The picture appears
7
8
A
B
C
D
E
F
65
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