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IBM 4247

IBM 4247
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DANGER
To prevent serious personal injury from electrical shock when connecting or disconnecting the interface
cable, set the printer power switch to O (Off) and unplug the power cable.
DANGER
Do not connect or disconnect any communication port, teleport, attachment connector, or power cord
during an electrical storm.
Note: Print or obtain from the operator a printout of the current printer configuration. See “How To Run the Test
and Diagnostic (T&D) Programs” on page 201.
1. Power off (O) the printer and disconnect the power cord from the customer outlet.
2. Put the covers in the service position. See “Removing Covers” on page 275.
3. Remove the attachment card.
For coax attachment, see “Coax Attachment Card - Models 001, and 002” on page 392.
For twinax attachment, see “Twinax Attachment Card - Models 001, and 002” on page 396.
4. Remove the power supply cover.
5. Remove the board fan support.
Chapter 5. Removals and Adjustments 379

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