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I had a power surge that killed 4 TVs. I replaced the main board and power board on this TV and still not even a stand by light. Any ideas on next steps?
Hi @steiny234 , What is the full model number of the TV as there are different E650i models e.g. E650i-A2 and E650i-B2 etc? Check that the standby voltage is leaving the power board and that it gets to the mainboard. On the power board there are some voltage values marked on the board near the cable connector that goes to the mainboard that maybe will show STBY or 3.5V or 5V and showing what pins that they’re on. Be safety aware if you go to check the voltages as there is exposed lethal AC voltage on the power board Usually the standby voltage is on the STBY lead or if it is not marked as such then of these values. If the mainboard receives the correct standby voltage from the power board it turns on the TV standby power LED. If there is no standby voltage the mainboard won’t turn on the light or turn on the power board when the time comes to turn on the TV On the connector there should be a PS-On lead. When the TV is turned on, the mainboard signals the power board on this lead to turn on (it has only provided the standby voltage so far) so that there is power to the backlights and also to run the TV. If there is no standby voltage you will have to check the power board circuit (is it the correct power board?) If the standby voltage is there check that it is getting to the mainboard on the corresponding pin in case it is a cable problem. If it gets to onto the mainboard then there may be a problem with the mainboard
