Yamaha TYROS 2 Service Manual page 78

Tyros2
4. Test Items
No. LCD display
---: Device Connection Check
---:
1 001:Version
2 002:ROM Chk1
3 003:RAM Chk1
4 004:Flash Chk1
5 005:Wave ROM Chk1
6 006:Wave RAM(SDRAM) Chk1
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Test Function and Judgment Criteria
Checks the device connections.
Install two DIMMs and a hard disk drive.
Confirm that the LCD shows "DIMM:Device Found" and "HDD:Device
Found".
In case of NG, the following messages are indicated on the LCD.
"SwErr" (The panel switch is pressed.)
"DIMM:No Device" or "HDD:No Device"
LCD Contrast Check.
Confirm that the LCD contrast can be adjusted by turning the LCD CON-
TRAST knob.
Displays each ROM version.
ROM versions are displayed alternately on the LCD.
Press the TAB[<] or TAB[>] to switch the version pages.
The first page
Model Name : Tyros2(E)
Main Program : X.XX
Sub Program : X.XX
BitMap : X.XX
Contents1 : X.XX
Contents2 : X.XX
Wave1 : X.XX
The second page
Main Boot : X.XX
Sub1 Boot : X.XX
In case of NG, the LCD shows "0.00". (X.XX: Version)
Checks all ROMs connected to the CPU bus.
Confirm that the LCD shows "OK".
In case of NG, the following messages are indicated on the LCD.
"xxxxxx NG" or "xxxxxx No Card" (xxxxxx: ROM's name)
Checks all RAMs connected to the CPU bus.
Confirm that the LCD shows "OK".
In case of NG, the following messages are indicated on the LCD.
"xxxxxx NG" or "xxxxxx No Card" (xxxxxx: RAM's name)
Checks all the flash memories connected to the CPU bus.
(It takes about 15 seconds.)
Confirm that the LCD shows "OK".
In case of NG, the LCD shows "NG".
* Never turn off the product while executing the test.
Checks all wave ROMs.
Confirm that the LCD shows "OK".
In case of NG, the LCD shows "NG".
Checks all wave RAMs(SDRAM).
Confirm that the LCD shows "OK".
In case of NG, the following messages are indicated on the LCD.
"xxxxxx NG" or "xxxxxx No Card" (xxxxxx: SDRAM's name)
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