Lexmark C782 Service Manual - Page 108
sheet drawer option, Output expander, For 990.01 Service Error-Tray
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5061 500-sheet drawer option For 990.01 Service Error-Tray x, x=Tray 2, 3, or 4, this is the tray that has a problem or needs service. Note: Verify the autoconnect housing is correctly snapped into the printer and all options and is plugged into the system board correctly. Step 1 2 3 Actions and questions Make sure the autocompensator cable is correctly installed at the tray system board. Is the cable correctly installed? Make sure the drive assembly cable is connected correctly to the tray system board. Is the cable correctly installed? Check for worn or broken parts in the autocompensator and drive assemblies. Are any parts worn, broken, or damaged? Yes Go to step 2 Go to step 3 Replace the assembly that has the defective parts. No Install the cable correctly. Install the cable correctly. Replace the FRUs in the following order: 1. Electronic/ size sensing assembly. 2. Autocompensator assembly. 3. Drive Assembly. Output expander Step 1 2 3 Actions and questions Mechanical linkage/DC motor assembly-Make sure the DC motor cable connector is installed at J4 on the output expander control board. Is the cable connected correctly? Resistance check-Disconnect J4 from the option board, and check the resistance of the motor on the cable connector between J4-1 and J4-2. The resistance should measure between 115 and 135 ohms. Is the resistance correct? DC motor-Check between J4-1 and between J4-2 and the case of the DC motor for shorts. Is the DC motor shorted? Note: If the DC motor is shorted, the system board may be damaged. Yes Go to step 2 Go to step 3 No Reseat the cable, and recheck for correct operation of the option. Replace the mechanical linkage/DC motor assembly. Replace the mechanical linkage/DC motor assembly. Go to step 4 2-66 Service Manual