IBM 28P1938 User Guide - Page 115
Options Service Check, Flash Memory Option(s), IBM Infoprint 1130/1140
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IBM Infoprint 1130/1140 FRU 4 Operator Panel All Diamonds, no beeps 5 Operator Panel all diamonds, 5 Beeps Action Replace system board. Check the voltage at Pin J16-1 and J16-3. The voltage measures approximately +5 V dc. If incorrect, replace the FRUs in the following order: operator panel assembly system board Options Service Check Service Tip: When you have a problem with any of the options installed in the options slots on the interconnect board, switch the non operating option to one of the other option slots to isolate the failure. Flash Memory Option(s) Run a copy of the test page and check to see if the option you are checking is listed. The printer does not recognize the option being installed if the option is not listed. Check to make sure that the Memory card assembly is installed correctly and is not broken or damaged. If the Memory card assembly is correctly installed not broken or damaged then run the "Flash Test" on page 3-7. If the test fails, replace the Flash card assembly. If the problem continues, replace the system board. DRAM Memory Option(s) This service check is the same as the flash memory option service check with the following exception: Run the "SDRAM Memory Test" on page 3-15 from the menu if the SDRAM Memory card assembly is correctly installed and not broken or damaged. If the test fails, replace the SDRAM card assembly. If the problem continues, replace the system board. 2-88 Service Manual
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