Yamaha Portatone PSR-1500, Service Manual

Page: 75 / 162

PSR-1500/PSR-3000
75
Power ON
Set CPU Resister
Initialize Work RAM
Communicate with TG-CPU
Transmit Main
Program to RAM
Initialize Port
Initialize Enhancing port
/LCD-RES = L
/EBUS-RES = L
/TG-RES = L
After turning on the power:
L L (*invisible)
After exiting the test program:
H L
Initialize LCD
brightness DA1=0
Initialize
BOOT Work RAM
/LCD-RES = H
/EBUS-RES = H
/TG-RES = H
Send a message to E-BUS IC
DM2-E circuit board
/LCD-RES:IC36, 9pin
/EBUS-RES:IC36, 12pin
/TG-RES:IC36, 15pin
DM2-E circuit board
/LCD-RES:IC36, 9pin
/EBUS-RES:IC36, 12pin
/TG-RES:IC36, 15pin
DM2-E circuit board
/LCD-RES:IC36, 9pin
/EBUS-RES:IC36, 12pin
/TG-RES:IC36, 15pin
Initialize
E-BUS driver
(EBUS Start)
Opening screen
will appear
If the booting procedure stops here, there is a
possibility that the IC(s) below is (are) damaged:
CPU
SDRAM
E-BUS
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
Clear Registration:
Press the power switch white pressing
the second highest key (black key).
BackUp FlashROM
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
SDRAM
Yes
No
Yes
No
Please insert the
INSTALER CARD
Is Main Program defective?
Force Format Mode
Communicate with TG-CPU
Get the current version
Transmit program and data
Peripheral Reset
/EBUS-RES = L
/TG-RES = L
Release the initialization of the peripheral devices
/EBUS-RES = H
/TG-RES = H
Communicate
with TG via
MCI-IC
Communicate with
TG via MCI-IC
Recover the LCD
brightness parameter
which is set by Function
DAC1A circuit board
/MUTE:CN601, 9pin
/SPOFF:CN601, 10pin
L H
This will depend on the
connection of Headphones
and the setting of Function
If you play the keyboard,
sound will be produced
Initialize keyboard(E-BUS)
Send a message to E-BUS IC
Keyboard input is not accepted yet
After exiting
the test
program,
return to start
Installation failure, Etc.
Recover System BackUP
Release Mute
Release SP OFF
Release MIDI
communication
Connect USB-MIDI
Installation mode?
Yes
No
Force Format Mode
Factory Set?
FLAG = 1
Yes
No
Test Program
If Factory Set is executed,
FLAG = 0 1
Test Program?
Yes
No
Factory Set?
FLAG = 1
Turning the power off under writing data into it, Etc.
Improper power shut down!
Backup data and/or
Userfiles have been lost.
Yes
No
BackUP FlashROM
has broken data
Yes
No
Factory Set?
FLAG = 1
Yes
No
Backup Flash ROM
is not formatted
Data restration
Initialize
BackUP Data & Cookie
Check BackUP Data & Cookie.
If these are damaged, there
will be initialized
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
BackUp FlashROM
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
BackUp FlashROM
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
E-BUS
SDRAM
If the booting procedure stops here, there is a
possibility that the IC below is damaged:
Yes
No
Owner's name will appear
Initialize
Registration Data
Yes
No
Check Registration data.
If it is dameged, these will
be initialized.
Program error!
Please install the Program
Format BackUP FlashROM
Clear System BackUP?
or
Factory Set? FLAG = 1
Clear Registration
or
Factory Set? FLAG = 1
Initializing system setup.
Trun on the panel LED
Main screen will appear
Initialize
System BackUP
DM2-E circuit board
The pin below fluctuates
up and down rapidly.
/CS6: IC29, 4pin
Initialize Registration backup
Owner's name
won't appear during
Factory Set
Copyright(c)2004
will appear
DM2-E circuit board
DA1:IC6, 238pin
Screen will brighten
Clicking the illustration of the camera starts the animation,
which is the same as the CVP-309.
PSR-3000