Texas Instruments Extensa 660 Series Maintenance Manual page 70

Beep Code
3-1-2
3-1-3
3-1-4
None
3-2-4
None
None
3-3-4
3-4-1
3-4-2
None
1-2
1-3
None
None
None
None
4-2-1
4-2-2
4-2-3
4-2-4
4-3-1
4-3-3
4-3-4
4-4-1
4-4-2
4-4-3
5-10 Troubleshooting Procedures
Table 5-3 Self Test Beep Messages
Port 80h
21h Master DMA Register Failure
22h Master Interrupt Mask Register Failure
23h Slave Interrupt Mask Register Failure
25h Interrupt Vector Loading In Progress
27h Keyboard Controller Test Failure
28h CMOS Power Failure and Checksum in Progress
29h CMOS Configuration Validation in Progress
2Bh Screen Memory Test Failure
2Ch Screen Initialization Failure
2Dh Screen Retrace Test Failure
2Eh Search for Video ROM in progress
2Eh Cirrus Video Chip Failure
2Eh Cirrus RAM DAC or Video RAM Failure
30h Screen Believed Operable; running with Video ROM
31h Monochrome Monitor Believed Operable
32h Color Monitor (40 Column) Believed Operable
33h Color Monitor (80 Column) Believed Operable
34h No Time Tick
35h Shutdown Failure
36h Gate A20 Failure
37h Unexpected Interrupt in Protected Mode
38h Memory High Address Line Failure at 010000h-0A0000h
3Ah Timer Chip Counter 2 Failed
3Bh Time of Day Clock Stopped
3Ch Serial Port Failure
3Dh Parallel Port Failure
3Eh Math Coprocessor Failure
Description