Re: LG 37LH5000 boot loop due to shorted inverter

I didn't talk about import fees - I order from China all the time and never get extra fees either in France.
No, the problem is that a used board is worth about 40EUR, and as it stands I'm not sure that the lamps are still good, and I'm pretty sure that the used board would die within months anyway.

Re: LG 37LH5000 boot loop due to shorted inverter

Two of the three FETs I've replaced were shorted again after a few minutes of experimentation. Perhaps the lamps are bad, or the transformers - anyhow I give up. I may attempt to replace this inverter (6632L-0549A) with an apparently compatible, used 6632L-0579A, but I'm not sure this is worth the expense.

Re: LG 37LH5000 boot loop due to shorted inverter

I wonder if the lamps themselves aren't bad. What's the likelihood that they'd be e.g. shorted?

What gives me trouble is that only one wire is actually connected from the lamp to the inverter! I don't know where the other one is, perhaps the chassis is used?

Re: LG 37LH5000 boot loop due to shorted inverter

This inverter's architecture is fairly complex compared to others.
If you need one, I managed to buy a BD9898FV at an unbeatable price: [url]http://www.aliexpress.com/item/Bd9898fv-lcd-chip-Good-quality/1080638181.html[/url]
Note the picture says BD9897FS (the most common single-chip driver for similar inverters), but the marking really is BD9898FV. Is it genuine, I don't know, since my inverter isn't working one can wonder

The 0579A is indeed about 25GBP (will you guys ever join eurozone?), and I'm pretty...

Re: LG 37LH5000 boot loop due to shorted inverter

I'm sure the chips are different. BD9215AFV is the "master" (according to the datasheet), and BD9898FV is the "slave" (again, according to the datasheet, I'll confess not having given much attention to what those chips do exactly). BD9898FV burned when I tried to start the inverter with the broken MOSFETs removed (not the smartest idea on the planet, but I wasn't expecting the chip to blow...).
So I sourced it (with difficulty), and replaced it, and I get to the point where the LED lights up for about 1...

Re: LG 37LH5000 boot loop due to shorted inverter

Hi,
I'm working on a similar inverter from a LG TV. The board is referenced 6632L-0549A, and it sports 4 transformers, 8 MOSFETs. The BD9215AFV was OK, but it was the slave chip BD9898FV that was dead, as well as three shorted MOSFETs.
I've replaced everything (replacing the BD9898FV was very tedious, I unfortunately destroyed a trace or two so had to fix things up with wire), and the inverter seems to at least start up, but it still doesn't appear to work.

Since I suspect you are working on the exact same...