Toshiba A100 VA3 - Satellite - Pentium Dual Core 1.6 GHz Maintenance Manual page 59

2 Troubleshooting Procedures
Check 3 The IRT checks the system board. When the IRT detects an error, the system stops
or an error message appears.
If one of the following error messages (1) through (17), (24) or (25) is displayed,
go to Procedure 5.
If error message (18) is displayed, go to the Keyboard Troubleshooting Procedures
in Section 2.7.
If error message (19), (20) or (21) is displayed, go to the 2.5" HDD
Troubleshooting Procedures in Section 2.6.
If error message (22) or (23) is displayed, go to the 3.5" USB FDD
Troubleshooting Procedures in Section 2.5.
(1)
PIT ERROR
(2)
MEMORY REFRESH ERROR
(3)
TIMER CH.2 OUT ERROR
(4)
CMOS CHECKSUM ERROR
(5)
CMOS BAD BATTERY ERROR
(6)
FIRST 64KB MEMORY ERROR
(7)
FIRST 64KB MEMORY PARITY ERROR
(8)
VRAM ERROR
(9)
SYSTEM MEMORY ERROR
(10) SYSTEM MEMORY PARITY ERROR
(11) EXTENDED MEMORY ERROR
(12) EXTENDED MEMORY PARITY ERROR
(13) DMA PAGE REGISTER ERROR
(14) DMAC #1 ERROR
(15) DMAC #2 ERROR
(16) PIC #1 ERROR
(17) PIC #2 ERROR
(18) KBC ERROR
(19) HDC ERROR
(20) HDD #0 ERROR
(21) HDD #1 ERROR
(22) NO FDD ERROR
(23) FDC ERROR
(24) TIMER INTERRUPT ERROR
(25) RTC UPDATE ERROR
2-18
2.4 System Board Troubleshooting
PORTEGE A100 Maintenance Manual (960-460)