Toshiba T4700CS Maintenance Manual page 36

Error status
01H Pre-init for warm start
test
05H PIT test
06H PIT initialization
07H PIT function test
0AH First 64KB memory test
0BH System memory
initialization
0DH Interrupt vector
initialization
15H RTC test
16H CMOS RAM test
18H PIC initialization
1FH Display initialization
22H KBC test
25H System memory test
30H Extended memory test
40H DMA page register test
2-16
Table 2-3 Printer port LED error status (1/2)
Test item
TIMER CH.2 OUT ERROR
PIT ERROR
READ DATA
WRITE DATA = XXH
MEMORY REFRESH ERROR
FIRST 64KB MEMORY ERROR
RTC ERROR
READ DATA
WRITE DATA = XXH
****Error in CMOS.
****Error in CMOS.
****Error in CMOS.
****Error in CMOS.
****Error in CMOS.
****Error in CMOS.
Check system.
CRTC ERROR
VRAM ERROR
READ DATA
WRITE DATA = XXXXXXXXH
KBC ERROR
SYSTEM MEMORY ERROR
ADDRESS
READ DATA
WRITE DATA
SYSTEM MEMORY PARITY ERROR
ADDRESS = XXXX0000H - XXXXFFFFH
EXTENDED MEMORY ERROR
ADDRESS
READ DATA
WRITE DATA = XXXXXXXXH
EXTENDED MEMORY PARITY ERROR
ADDRESS = XXXX0000H - XXXXFFFFH
DMA PAGE REGISTER ERROR
READ DATA
WRITE DATA = XXH
Message
—
= XXH
—
—
—
= XXH
Bad battery****
Bad check sum****
Bad configuration****
Bad memory size****
Bad HDD type****
Bad time function****
Then press [F1] key
—
= XXXXXXXXH
= XXXXXXXXH
= XXXXXXXXH
= XXXXXXXXH
= XXXXXXXXH
= XXXXXXXXH
= XXH
T4700CS, T4700CT, T4800CT