Yamaha TRS-MS02 - Test Program Item List (More); RAM and Backup ROM Check Procedures

Tyros3
82
Test 3
Function: Simplifi ed check of RAM
Description:
Executes Read/Write test (connection check) of RAM.
Displayed Message:
Selected screen
In case of OK
In case of NG
Supplement:
Location of NG will be shown in case of NG.
If sound board is not recognized, "No Card" will be shown
for SUB SDRAM.
Test 4
Function: Simplifi ed check of Backup ROM
Description:
Executes Read/Write test (connection check) of Backup Flash
ROM. It will take about 9 seconds for the check.
* The check cannot be aborted until OK/NG result is indicated.
Displayed Message:
Selected screen
In case of OK
In case of NG
Supplement:
The check cannot be aborted until OK/NG result is indicated.
Original data will be written back after the test is executed.
Do not turn off the power during checking or the data will be
lost.
００３：ＲＡＭ Ｃｈｅｃｋ１
ＯＫ
００３：ＲＡＭ Ｃｈｅｃｋ１
Ｍａｉｎ ＳＤＲＡＭ ＮＧ
Ｓｕｂ ＳＤＲＡＭ ＮＧ
００３：ＲＡＭ Ｃｈｅｃｋ１
Error Indications
Circuit
Board
Location Name in Circuit Diagram
Main SDRAM NG DM
IC12
IC13
SDRAM 256 M
SDRAM 256 M
Sub SDRAM NG
DM IC513 MAIN RAM 128 M SDRAM
Sub SDRAM No Card
００４：ＢＡＣＫＵＰ ＲＯＭ Ｃｈｅｃｋ１
ＯＫ
００４：ＢＡＣＫＵＰ ＲＯＭ Ｃｈｅｃｋ１
ＮＧ
００４：ＢＡＣＫＵＰ ＲＯＭ Ｃｈｅｃｋ１
Error Indications
Circuit
Board
Location Name in Circuit Diagram
NG DM IC15 BACKUP 64 M FLASH