I have a Sharp Aquos TV LC-60LE644U for the past 6 months I have noticed that almost every few nights after the TV has been on for a little the screen would turn green/multicolor or just freezes and have a high pitched screeching sound before it turns off. Some times it turns right back on, other times it needs to sit for 5-10 min before it will restart. The last time it happened it wouldn't turn on for a few days. I get a red standby light on the front of the TV. I checked the outlet and power supply, I have standby voltage on the power supply (5V) both 12v wires give 12v. How can I tell if its the main board (NQP890M0005N00) or the Power Supply? I found the service manual and I was not sure what to test first. I attached a few photos of the boards.
https://issuu.com/portal-da-eletroni...arp_lc-60le644
Any advice is appreciated thanks!
https://issuu.com/portal-da-eletroni...arp_lc-60le644
Any advice is appreciated thanks!
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