Lexmark C772N Service Manual - Page 97
error code service check, RIP fan
UPC - 734646047227
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5061 927.03 error code service check RIP fan Step 1 Actions and questions Turn the power off, manually spin the fan, and check that it rotates freely. Does the fan rotate freely? Yes Go to step 2 2 Check the RIP fan cable connection to the system board JR1 for correct installation. Is the cable installed correctly? 3 Disconnect the RIP fan from JR1 on the system board, and check the voltages on JR1. Pin Fan on Fan off Fan Fan disconnected disconnected Fan switch on Fan switch off JR1-1 +1.6 V dc +3.3 V dc +3.3 V dc +3.3 V dc JR1-2 0 V 0 V 0 V 0 V JR1-3 +1.9 V dc 0 V dc 0 V +2 V dc JR1-4 +24 V dc +24 V dc +24 V dc +24 V dc Are the voltages correct? Go to step 3 Replace the RIP fan. See "RIP fan removal" on page 4-86. No Replace the RIP fan. See "RIP fan removal" on page 4-86. Install the cable correctly. Replace the system board. See "System board removal" on page 4-89. 930.09 error code service check LVPS This problem with the fuser circuits is usually the zero crossover signal from the LVPS not working correctly. Step 1 2 Actions and questions LVPS cable-check the LVPS cable to J17 on the system board to make sure it is seated correctly. Go to "System board" on page 5-8. Is the cable seated correctly? Voltage checks-Disconnect JCVR1 from the system board assembly. Go to "System board" on page 5-8. Check the voltage at J17, on the cable. It measures approximately +3.7 V dc. Is the voltage correct? Yes Go to step 2 Go to step 3 No Install the cable correctly. Replace the following FRUs in order: 1. LVPS assembly. See "LVPS assembly removal" on page 4-53. 2. System board. See "System board removal" on page 4-89. Diagnostic information 2-55