Samsung f76a-p-c7xxx-4-troub free download

File name f76a-p-c7xxx-4-troub.pdf

Troubleshooting 4.Troubleshooting 4-1 CheckpointsbyErrorMode 4-1-1 FirstChecklistforTroubleshooting 1. Check the various cable connections first. - Check to see if there is a burnt or damaged cable. - Check to see if there is a disconnected or loose cable connection. - Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3. Check the following voltages; - SMPS to the Main Board - SMPS to the X Main Board - SMPS to the Y Main Board - SMPS to the Logic Board Samsung Electronics 4-1 Troubleshooting 4-1-2 CheckpointsbyErrorMode NoPower - The LEDs on the front panel do not work when connecting the power cord. Symptom - The SMPS relay does not work when connecting the power cord. - The unit appears to be dead. The SMPS relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following: Major - Check the internal cable connection. Checklist - Check the fuses. - Check the output voltages of the SMPS. - Replace the Main Board. START Is the AC power No Insert the power cord Yes Problem Solved? cord connected? and retest. Yes No No Insert the connector Yes Is the ac inlet (CN800S) Problem Solved? connected? and retest. Yes No Are fuses F801S, No Replace the fuse(s) Yes Problem Solved? FS802S open? and retest. Yes No A B 4-2 Samsung Electronics Troubleshooting A B