To start off I just picked up the tv about two weeks ago. It has a cracked screen which I just got a screen yesterday for $60, (without boards) It does have the 7 blinks of death which I thought was going to be the SC board. I was going to purchase the repair kit but Before I did I wanted to test it first.
So I tested the SC board and found NO shorts. I did look on here for testing the SU and SD buffer boards. I removed the 4 screws holding the SU/SD to the SC board, I removed the 3 connections from the SC board.
The TV does power on NO blinking red lights, The green LEDs on the boards light up and the fans come on. But I hear a pretty loud buzzing noise from the SC board. Which I think is going to be normal. Cause the SU/SD boards are disconnected.
I'm trying to figure out which board is bad! Im not sure But I think I both the SD/SU boards are bad. I tried to test them separate but I think Im doing it wrong.
Whats the best way to test the SU/SD?
Thanks Eric
So I tested the SC board and found NO shorts. I did look on here for testing the SU and SD buffer boards. I removed the 4 screws holding the SU/SD to the SC board, I removed the 3 connections from the SC board.
The TV does power on NO blinking red lights, The green LEDs on the boards light up and the fans come on. But I hear a pretty loud buzzing noise from the SC board. Which I think is going to be normal. Cause the SU/SD boards are disconnected.
I'm trying to figure out which board is bad! Im not sure But I think I both the SD/SU boards are bad. I tried to test them separate but I think Im doing it wrong.
Whats the best way to test the SU/SD?
Thanks Eric
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