111
Tyros4
SYSTEM BOOTING FLOWCHART
Instrument ID
writing mode
Test mode
CPU registers setting
Port initialization
Initialize Enhancing port
Initialize BOOT SDRAM
0 clear,
Setup of Constant
E-BUS driver
initialization
Send a message to
SWP51L (IC700, 701)
If the booting procedure does not
reach to this stage, the following
parts might be defective:
Backlight ON
BRT = H
Installation mode?
Screen will brighten
If there is the updater,
the system will shift
to installation mode.
* “After executing Factory Set” refers to the condition when the power is turned
on after executing “Factory Set” in the Test Program.
Is Main Program
defective?
Installation
failure, etc.
Installer program
not found!
Peripheral Reset
/LAN-RES = L
/DAC-IC = L
/MIDI-IC = L
/USB-RES = L
/SWP-IC = L
/AVDP-RES = L
Since set the "L" other than
SWP-IC, it can not recognize the
SWP-IC decay.
Transmit Main Program
to SDRAM
Send to SDRAM
(IC201/202/203/204)
When there is no
media containing
the updater.
MAC Address
Writing Mode?
MAC Address
written?
Test Program?
After executing
Factory Set (*)
Failure in writing at
the time of production
A
Installation
Installation
END
/PRG-WP = L (IC16 16pin)
/BACKUP-WP = L (IC23 16pin)
/MUTE = L (IC959 5pin)
/SPOFF = L (IC959 3pin)
NTSC/PAL = L (IC606 7pin)
BRT = L (CN302 1pin)
/LAN-RES = L (IC14 16pin)
/DAC-IC = L (IC14 15pin)
/MIDI-IC = L (IC14 12pin)
/USB-RES = L (IC14 9pin)
/SWP-IC = L (IC14 5pin)
/AVDP-RES = L (IC14 2pin)
/SWP-RES = H
SSP1 soft reset
IC902
Opening screen
will appear
• CPU (IC1)
• SWP51L (IC701)
If the booting procedure does not
reach to this stage, the following
parts might be defective:
• SDRAM
Initialize SDRAM
(It takes about several
hundreds milliseconds.)
Release peripheral reset
/LAN-RES = H
/DAC-IC = H
/MIDI-IC = H
/USB-RES = H
/SWP-IC = H
/AVDP-RES = H
Summary of Contents for Tyros4
Page 44: ...44 Tyros4 D D 1 28 56 IC23 48P TSOP 29 DM Circuit Board 2NA WT75980 ...
Page 46: ...46 Tyros4 DJACK Circuit Board to DM CN600 E E F F 2NA WT90150 ...
Page 47: ...47 Tyros4 to DM CN3 to DM CN4 E E F F Pattern side Component side 2NA WT90150 ...
Page 50: ...50 Tyros4 PNR Circuit Board H H to PNL CN4 to DM CN901 2NA WT90310 ...
Page 51: ...51 Tyros4 Component side 2NA WT90310 H H ...
Page 52: ...52 Tyros4 PNR Circuit Board I I 2NA WT90310 ...
Page 53: ...53 Tyros4 Pattern side 2NA WT90310 I I to PNC CN2 ...
Page 54: ...54 Tyros4 PNL Circuit Board J J 2NA WT90240 ...
Page 55: ...55 Tyros4 Component side J J to PNR CN2 not installed 2NA WT90240 ...
Page 56: ...56 Tyros4 PNL Circuit Board K K to CK CN91 to LCL CN152 2NA WT90240 ...
Page 57: ...57 Tyros4 Pattern side 2NA WT90240 K K to WHEEL ASSEMBLY to PNLS CN202 ...
Page 62: ...62 Tyros4 MK61L Circuit Board Component side N N N C N N O O O O to MKH D CN4 2NAKZ WD80020 3 ...
Page 63: ...63 Tyros4 MK61L Circuit Board Pattern side P P 2NAKZ WD80020 3 P P Q Q Q Q ...