CNC Customer Support -- Tech Note #1

Title of the Technical Note:

IBM 600 COM1 Problem

Subtitle :- F/IBM/600/COM1

Applies to: IBM 600 Thinkpad
Last updated: Friday January 09, 2004.

SUMMARY

The serial port is faulty.
It won't allow external modem or my cell-phone to connect, and I have  tried to get it to talk to the external port by disabling everything else including the infra-red port etc.

I went in to the CMOS setup and tested the serial port and the second time it showed an error,

ie Com Port Error - DEV 011, ERR 14, FRU 0010.

The next time I tested it came up OK.

However, it fails a loop back test and also fails data Tx onCheck-It V3.

The internal modem works (on Com2) but also shows an error on
data Tx on Check-It.

Note: Edited certain colourful words ;-)

RESPONSE:-

  1. This is the  description of possible fix.
  2. Try resetting up the IBM Software for COM1 to
    IRQ 4 I/O 03F8 - 03FF from WIN'95
    Then Go to Control Panel - System - COM1 to verify settings.
    Dong says that sometimes IBM Thinkpads have a problem defining the correct COM ports.
    Disable COM3, and check Sound Card & Int Modem I/O's for conflicts.

 

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