4.Replacement and Adjustment
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Controller Board (PCB15)
Controller Board (PCB15) (IM 550F/600F/600SRF)
• Keep NVRAMs away from any objects that can cause static electricity. Static electricity can
damage NVRAM data.
1. Remove the controller box. (Controller Box (IM 550F/600F/600SRF))
2. Disconnect the connector on the controller box [A].
3. Remove the fax unit [A].
4. Remove the slot cover [A].