Toshiba T1960CT Maintenance Manual page 27

Check 3 The IRT checks the system board. If the IRT detects an error, the system stops or
an error message appears.
If any of the following error messages display, replace the system board:
(1) through (17), (19), (20), (25) or (26).
If error message (18) displays, go to the Keyboard Troubleshooting Proce-
dures in Section 2.7.
If error message (21) or (22) displays, go to the HDD Troubleshooting
Procedures in Section 2.6.
If error message (23) or (24) displays, go to the FDD Troubleshooting
Procedures in Section 2.5.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
2-10
TIMER CH.2 OUT ERROR
PIT ERROR
MEMORY REFRESH ERROR
FIRST 64KB MEMORY ERROR
RTC ERROR
CRTC ERROR
VRAM ERROR
KBC ERROR
SYSTEM MEMORY ERROR
SYSTEM MEMORY PARITY ERROR
EXTENDED MEMORY ERROR
EXTENDED MEMORY PARITY ERROR
DMA PAGE REGISTER ERROR
DMAC #1 ERROR
DMAC #2 ERROR
PIC #1 ERROR
PIC #2 ERROR
KEYBOARD ERROR
KBC ERROR
HDC ERROR
HDD #0 ERROR
HDD #1 ERROR
NO FDD ERROR
FDD ERROR
TIMER INTERRUPT ERROR
RTC UPDATE ERROR
T1960CS/T1960CT