Lexmark T644 Service Manual - Page 118

4061-xx0 950.30 through 950.60 EPROM mismatch failure Warning: When replacing any one of the following components: • Operator panel assembly (or upper front cover) • System board assembly • Interconnect card assembly Only replace one component at a time. Replace the required component and perform a POR before replacing a second component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never replace two or more of the components listed above without a POR after installing each one or the printer will be rendered inoperable. Warning: Never install and remove components listed above as a method of troubleshooting components. Once a component has been installed in a printer, it can not be used in another printer. It must be returned to the manufacturer. Note: Before proceeding with this service check, make sure you have the correct system board installed in the printer. The system board has a label with an board ID and barcode. Use the first eight numbers to identify the board with the part number in the table below: Model 4061-000 (non-network) 4061-010 (network) 4061-200 (non-network) 4061-210 (network) 4061-400 (non-network) 4061-410 (network) Board bar code Q0016021 Q0016001 Q0016022 Q0016002 Q0016023 Q0016003 Corresponds to P/N... 40X0140 40X0141 40X0142 40X0143 40X0144 40X0145 This error code indicates a mismatch between the system board and the interconnect card. FRU Action 1 Interconnect card assembly If the interconnect card assembly has been recently replaced, go to step 3. If the interconnect card assembly has not been recently replaced, contact the next level of support. 2 System board If the system board has been recently replaced, go to step 4. If the system board has not been replaced, contact the next level of support. 3 Interconnect card assembly Replace the current interconnect card assembly with the original interconnect card assembly. "Interconnect card assembly removal" on page 4-53. If the error remains, go to step 5. 2-78 Service Manual