Hi guys,
So I was messing with the power board to my Samsung LE40C750R2K TV whilst I was waiting for the main board to arrive and in hindsight was probably a stupid idea but I hadn't anticipated for what actually happened.
I had the power board connected the the inverter board only and switched on the TV. The backlight came on. I then unplugged the the cable connecting the power board to the inverter board (CNI801) and as soon as I did this, the blue capacitor (CI826) next to the connector starting sparking and smoke came out from it, and was especially violent at the solder point. This capacitor connects directly to ground so I guess as soon as the load was removed, the electricity could only flow through the capacitor and blowing it in the process. The cap does have a marking of 82J and 6KV which I assume can withstand 6000v
Does anybody who is more electronically savvy than me knows what may have happened here? I have plugged in power boards into the mains without anything connected in the past but nothing has happened. My logic would assume that if I unplugged the inverter board, the screen just wouldn't light up, it shouldn't blow a capacitor rated for 6kv.
I can replace this capacitor without problem but I just want to know if there's a chance that by unplugging the inverter cable, something else could have fried on the board.
The power board is BN44-00341A
Thanks
So I was messing with the power board to my Samsung LE40C750R2K TV whilst I was waiting for the main board to arrive and in hindsight was probably a stupid idea but I hadn't anticipated for what actually happened.
I had the power board connected the the inverter board only and switched on the TV. The backlight came on. I then unplugged the the cable connecting the power board to the inverter board (CNI801) and as soon as I did this, the blue capacitor (CI826) next to the connector starting sparking and smoke came out from it, and was especially violent at the solder point. This capacitor connects directly to ground so I guess as soon as the load was removed, the electricity could only flow through the capacitor and blowing it in the process. The cap does have a marking of 82J and 6KV which I assume can withstand 6000v
Does anybody who is more electronically savvy than me knows what may have happened here? I have plugged in power boards into the mains without anything connected in the past but nothing has happened. My logic would assume that if I unplugged the inverter board, the screen just wouldn't light up, it shouldn't blow a capacitor rated for 6kv.
I can replace this capacitor without problem but I just want to know if there's a chance that by unplugging the inverter cable, something else could have fried on the board.
The power board is BN44-00341A
Thanks
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