Pioneer DVJ-X1 - Professional DVD Turntable, Service Manual

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DVJ-X1
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7.1.2 POWER ON SEQUENCE
Player section
Power on
MAIN CPU CPU for the Operation section
Canceling reset of
SODC (IC2100), Pin 45
Initial setting
Reading data, etc.
Initialization of
loading mechanism
Power on
Canceling reset of
CPU (IC111), Pin 193
Canceling reset of
peripheral devices
Long press processing
of the key In the power ON
DVD
CD
Distinction
between
DVD/CD
DVD playback
process
CD playback
process
Program transfer from
FLASH to SDRAM
Program transfer to the
FPGA
Program transfer to the
DSP (IC505, IC506)
Initial setting for the CPU
Communications with the
Operation section start.
Input of statuses of keys,
output of display data
Communications with the
ATAPI system start.
Checking peripheral
devices
Initialization of the SDRAM
Power on
Canceling reset of the
CPU (IC3004), Pin 12
Initial setting for the CPU
"POWER ON" is indicated
on the FL display.
All LEDs, including the
buttons but excluding
the REV LED, light up.
Long press processing
of the key In the power ON
After a disc is loaded, loading
and startup processes begin.
After a disc is loaded, loading
and startup processes begin.
A disc can be loaded
before communication
between the main CPU
and the player section
starts.
Data and clock output
from Pins 164 and 165
of the CPU (IC111).
When data transfer to
the FPGA is finished,
FPGA_DONE (Pin 125)
becomes high.
Once communication
with the main CPU is
established, the
"POWER ON"
indication disappears.
If the result of the check
is NG, error E70** is
generated.
If a disc is loaded,
the playback process
starts.