IBM 4247 Maintenance Information page 367

DANGER
Do not connect or disconnect any communication port, teleport, attachment connector, or power cord
during an electrical storm.
1. Power off (O) the printer and unplug the power cord from the printer.
2. Remove the Attachment Card. See "Model 003 Attachment Cards: Serial, Twinax, LAN, Coax" on page 359.
3. Put the covers in the service position. See "Removing Covers" on page 275.
4. Remove the Attachment Card Guide Assembly. See "Attachment Card Guide Assembly with the Interposer
Connector (Model 003)" on page 364.
5. Remove the power supply cover and the board fan support in order to remove the large power supply cable.
Figure 110. Board Fan Support
6. Disconnect all cables from the logic board connectors.
Board Fan
Support
Chapter 5. Removals and Adjustments
367