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Part 5. Troubleshooting

Chapter 10. Diagnosing and recovering from problems .........................10-1

Before you panic: some simple fixes .............................................................10-2

Quick problem solving chart ..........................................................................10-6

Solving hardware and software problems .....................................................10-7

Solving hardware problems ..................................................................10-7

Solving software problems ....................................................................10-13

Solving modem problems .....................................................................10-15

Error codes and messages ............................................................................10-17

IBM Diagnostic Programs ..............................................................................10-20

Recovering factory-installed programs and files ............................................10-22

Part 6. Technical reference

Appendix A. Specification tables ...............................................................A-1

Memory module placement ...........................................................................A-1

Memory map ..................................................................................................A-3

System input/output addresses .....................................................................A-4

System interrupts ...........................................................................................A-6

DMA channel assignments ............................................................................A-7

Serial port addresses .....................................................................................A-8

Connector functions .......................................................................................A-9

Appendix B. Modem information ...............................................................B-1

Modem features .............................................................................................B-1

Operating your modem ..................................................................................B-3

Using the Auto Answer feature .............................................................B-3

Disabling Call Waiting ...........................................................................B-4

Modem commands ........................................................................................B-5

Executing commands ...........................................................................B-5

Command format ..................................................................................B-5

AT commands .......................................................................................B-6

Detail for +MS Controls ........................................................................B-9

Extended AT commands ......................................................................B-10

V.42bis commands ...............................................................................B-11

IBM 2196 User Manual

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