CVP-405/CVP-405PE/CVP-405PM
98
SYSTEM BOOTING FLOWCHART
■
A
Initialize Port
/DACIC = L
/MUTE = L
/SPOFF = L
Initialize Enhancing port
/AVDP-RES = L
/EBUS-RES = L
/TG-RES = L
/LAN-RES = L
DM circuit board
/DACIC : IC4, 10pin
/MUTE : IC4, 8pin
/SPOFF : IC4, 6pin
/AVDP-RES : IC27, 9pin
/EBUS-RES : IC27, 12pin
/TG-RES : IC27, 15pin
/LAN-RES : IC27, 19pin
DM circuit board
/DACIC : IC4, 10pin
/EBUS-RES : IC27, 12pin
/LAN-RES : IC27, 19pin
DM circuit board
DA1 : IC5, 238pin
DM circuit board
/AVDP-RES : IC27, 9pin
/EBUS-RES : IC27, 12pin
/TG-RES : IC27, 15pin
Initialize
BOOT Work RAM
/AVDP-RES = H
/EBUS-RES = H
/TG-RES = H
Communicate with TG-CPU
Get the current version
Transmit program
Transmit data
Communicate with
TG via MCI IC
Installation mode?
No
Yes
No
Yes
No
Yes
Program error!
Please install the
program
Please insert the
Installer media.
INSTRUMENT ID
WRITE MODE
Peripheral Reset
/DACIC = L
/EBUS-RES = L
/LAN-RES = L
Initialize Work RAM
Cancel peripheral reset
/DACIC = H
/EBUS-RES = H
/LAN-RES = H
Transmit Main Program to RAM
MAC Address
Writing Mode?
No
Yes
No
Yes
No
Yes
MAC ADDRESS
ERROR
Test
Force Format Mode
MAC Address
is not written?
Communicate with TG-CPU
Test Program?
Factory Set?
Power ON
Set CPU Register
Initialize LCD brightness
DA1 = 0
Screen gets dim
Maximum brightness
DA1 = $FF
Screen will brighten
Installation failure, etc.
Initialize
E-BUS driver
(EBUS Start)
Send a message to E-BUS IC
Opening screen
will appear
If the booting procedure stops here,
there is a possibility that the
following parts are damaged:
• CPU (DM: IC5)
• RAM (DM: IC13, 14)
• E-BUS IC (EIF: IC1)
Is Main Program
defective?
If the booting procedure stops here,
there is a possibility that the
following part is damaged:
• RAM (DM: IC13, 14)
Failure in writing
*
Initialize keyboard (E-BUS)
Send a message to E-BUS IC
Keyboard input is not accepted yet
“Factory Set” refers to the condition of turning on the power after executing “Factory Reset” in the Test Program.
*
After tur ning on the power :
L
L (*invisible)
After exiting the test program:
H
L
Transmitting to the RAM
(DM: IC13, IC14)
Communicate with TG
via MCI IC (DM: IC303)
Up date
Main routine
Test Program
Main routine
End
ID Write
routine
End