Toshiba T2150 series, Maintenance Manual

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T2150 Series
2-13
Table 2-1 Printer port LED boot mode status (1/2)
LED status Test item Message
01H KBC initialization
ROM checksum test BIOS is damaged! .....
02H Special register initialization
PIT test PIT ERROR
PIT initialization —
PIT function check MEMORY REFRESH ERROR
TIMER CH.2 OUT ERROR
03H CMOS check CMOS CHECKSUM ERROR
CMOS BAD BATTERY ERROR
KB initialization KBC ERROR
04H Initialization of —
memory configuration
05H SM-RAM check —
06H Self test check —
Read of Power Supply —
information
07H ROM/RAM copy —
08H Initialization of internal VGA —
0AH First 64 KB memory test FIRST 64KB MEMORY ERROR
FIRST 64KB MEMORY PARITY ERROR
0BH System memory initialization —
0CH System initialization —
0DH Interrupt vector initialization —
18H PIC initialization —
1FH Display initialization VRAM ERROR
25H System memory test SYSTEM MEMORY ERROR
SYSTEM MEMORY PARITY ERROR
30H Extended memory test EXTENDED MEMORY ERROR
EXTENDED MEMORY PARITY ERROR
40H DMA page register test DMA PAGE REGISTER ERROR
41H DMAC test DMAC #X ERROR
42H DMAC initialization —
4AH PIC test PIC #X ERROR
50H Mouse initialization —
55H KBC initialization KBC ERROR
60H HDD initialization HDC ERROR/HDD #0 ERROR
65H FDD initialization FDC ERROR/NO FDD ERROR
70H Printer initialization —
80H SIO initialization —
90H Timer initialization RTC UPDATE ERROR
TIMER INTERRUPT ERROR
A0H NDP initialization —