Tyros4
96
Test 51
Function:
Full check of RAM
Description:
Executes Read/Write test (connection check) of RAM.
Displayed Message:
051:RAM Check2
Selected screen
051:RAM Check2
OK
In case of OK
051:RAM Check2
MAIN SDRAM (IC201,202,203,204) NG
SSP1 SRAM (IC905) NG
In case of NG
Supplement:
In case of NG, the location and the IC number of which NG is
detected will be shown.
"No Dev."
will be shown if SSP1 SRAM is not detected.
Error Indications
Circuit
Board
Location
Name in Circuit Diagram
MAIN SDRAM NG
DM
IC201
–204
SDRAM 128 M
SDRAM 128 M
SSP1 SRAM NG
DM
IC905
SRAM 4 M
SSP1 SRAM No Dev.
Test 52
Function:
Full check of backup ROM
Description:
Executes Read/Write test of the entire blocks of Backup Flash
ROM.
It will take about 6 minutes for the check.
Displayed Message:
052:Backup ROM Check2
Selected screen
052:Backup ROM Check2
OK
In case of OK
052:Backup ROM Check2
BACKUP(IC23) NG
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.
Error Indications
Circuit
Board
Location
Name in Circuit Diagram
BUCKUP NG
DM
IC23
FLASH ROM 64 M BACKUP
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 ...