IBM PS/2 CL57 SX Hardware Maintenance Reference page 33

¦ Real-time clock inaccurate.
¦ (See "Checking the Backup Battery" ¦ System Board
¦ in topic 5.3 before replacing any
¦ FRUs.)
+------------------------------------+-----------------------------------¦
¦ Printer problems.
+------------------------------------+-----------------------------------¦
¦ Serial or parallel port device
¦ problems.
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¦
+------------------------------------+-----------------------------------¦
¦ Internal Data/Fax modem does not
¦ communicate with a remote modem or ¦
¦ a fax.
¦
+------------------------------------------------------------------------+
IBM PS/2 Model CL57 SX HMS
Miscellaneous Symptoms
¦ Backup Battery
¦
¦
¦ See "Printer" in topic 6.0.
¦ Device
¦ Cable
¦ System Board
¦ Serial Adapter (if attached)
¦ I/O Panel Assembly
¦ See the Internal Data/Fax
Modem Hardware
¦ Maintenance Service
¦ supplement.
¦ Copyright IBM Corp. 1992
11.3 - 2
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