Re: Where can I buy _fresh_ LION batteries

Majority of laptop batteries need to be reset when you change the cells. Batteries circuitry holds the wear and capacity information, so even if you put brand new cells, without resetting the circuitry you will gain nothing.
I hope all goes well in your case

Re: LG32 no 24v line

No luck, replaced those resistors and the same problem exists. I checked and there are no other resistors near Q110 except that R123. It has 120K ohms on the meter and its colors say that aswell.

Do you have any other ideas what i could check? How can we test that SMPS controller?

I checked all other mosfets for shorts and they are all ok. All diodes checked and ok. What can I do to give you more info, so we can trace the problem?

Re: LG32 no 24v line

I was not able to find a bad smd resistor between replaced mosfets source and ground. They all checkout. But, I have found two probably bad resistors marked A and B in the picture:

A: colors: Blue, Violet, Black, Gold = 5,5 Ohm Should be 68 Ohm
B: colors: Red, Red, Gold, Gold = 0.03 Ohm Should be 2,2 Ohm

I will replace them later today. Can they be the source of my problems, or have I discovered something even more wrong with this board?...

Re: LG32 no 24v line

More pictures...

Re: LG32 no 24v line

Before the mosfet accident, I had 24v with and without inverter board. Now it is 1.2v with and without inverter hooked up. I took out all fuses on the inverter to stop the mosfets from blowing up.

Good news is I found a way to order stuff from ebay so those ao4614 are coming

If now only we could get it to fire up 24v the tv would be fixed.

One thing i noticed and it might be helpful info to you> Mosfets are now giving out erratic voltages-from 0-150V DC. Maybe it is something before the large transformer underneath...

Re: LG32 no 24v line

Thank you for the quick reply,

I checked the diodes out of circuit MBRF10100CT and they test OK.

Yes it is indeed the AO4614, sorry for the typo. We can't order from ebay in my country so I am forced to find something locally or find some distant relative that I can pay to mail me the parts.

I forgot to take the bottom picture, i will upload the photo tomorrow when my camera is available to me. Any other things i could test in the mean time?

Re: LG32 no 24v line

Pictures...

Hello all,

My problems is like this:

LG32 LG5000 turns on but picture is black. Backlight is not working. I found 4 A4614 transistors shorted and have taken them out. Still 4 left. I used an external power supply to check if the lamps are ok and yes, they all work. Because there is nowhere i can find A4614, a friend told me that IRF7389 will work the same. Oh boy was he wrong.... I soldered 4 new transistors and TV turned on for couple of seconds and BANG. A fuse blows. I test why the fuse blew, and I find 2 shorted mosfets. OK, so I replace the mosfets and the fuse,...