1. A TCL L43F3800A-MT07P Smart LED TV with Problem Cannot Boot/Start-up Author: iFix A little busy recently, but someone send a Smart TV to me for repair, the TV model is TCL L43F3800A--MT07P. Symptom: The indicator LED light up, but it can’t boot/start-up. The voltage output from power supply PSU is normal, so give the judgement that the fault location is on the main board. For this TV main board, at the beginning, I can’t fix it yet. But recently I have learned more and repaired a lot, so I am already familiar with it. Remove the cover, and measure the power supply of all DC and LDO, all are normal. This TV, the memory model is Toshiba 5D1K, EMMC bad is a common problem, so I began to confidently deal with EMMC. There was a backup before, just take a piece of EMMC and write it offline through RT809H programmer. Power on the TV mainboard, and have a test, but still same problem! After power on, although the LED indicator light on, there’s no flicker...
Comments
Post a Comment