Have TV Questions? Ask a TV Technician
Welcome! I am an experienced electronics field technician and your satisfaction is my top priority. We are now connected together on this convenient website.
Here is what I can tell you:
1. 57 error is not usually a main board issue. It means there is an issue with the Ballast. That COULD mean bad communication from the main board, but that would require significant diagnosis with a meter.
2. Yellow blinking steady simply means the lamp door is not put on the tv. There is a switch that the tv checks before it will power on. The lamp door makes contact with the switch.
Remember that I am here to help you. Please reply back if you need clarification on any of the above.
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