Toshiba SATELLITE U200 manual KBC Error HDC Error

2.4 System Board Troubleshooting 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 (15), (20) or (21) appears, go to Procedure 4.

If the error message (16) appears, go to the Keyboard Troubleshooting Procedures in Section 2.7.

If the error message (17) or (18) appears, go to the HDD Troubleshooting Procedures in Section 2.6.

If the error message (19) appears, go to the Optical Drive Troubleshooting Procedures in Section 2.9.

(1)PIT ERROR

(2)MEMORY REFRESH ERROR

(3)TIMER CH.2 OUT ERROR

(4)FIRST 64KB MEMORY ERROR

(5)FIRST 64KB MEMORY PARITY ERROR

(6)VRAM ERROR

(7)SYSTEM MEMORY ERROR

(8)SYSTEM MEMORY PARITY ERROR

(9)MEMORY ERROR

(10)EXTENDED MEMORY PARITY ERROR

(11)DMA PAGE REGISTER ERROR

(12)DMAC #1 ERROR

(13)DMAC #2 ERROR

(14)PIC #1 ERROR

(15)PIC #2 ERROR

(16)KBC ERROR

(17)HDC ERROR

(18)Built-in HDD ERROR

(19)CD-ROM ERROR

(20)TIMER INTERRUPT ERROR

(21)RTC UPDATE ERROR

PORTÉGÉ M500 Maintenance Manual (960-559) [CONFIDENTIAL] 2-21