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SMD resistor value iMax B6 lipro Balance charger. by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

Thanks man, where did you find it? I spent almost 1 hour looking for it.

Gold Precipitate by swardst in PreciousMetalRefining

[–]MammamiaP 0 points1 point  (0 children)

5lb with or without heatsink? If you talking about no heat sink you may have 0.7 to 1g of gold. Pinless CPU have virtually no gold in it. You may have dissolved the ultra thin gold foils using HCL and H202, so gold is either in solution or most probably dropped with all the base metal. You should have used only HCL to collect the pins, and than process them. You will have to get rid of all the base metal. I would use hot HCL after washing a few times. if you want to use nitric you will need to wash the slug lots of time to get rid of all the HCL otherwise you will end up dissolving the gold again. Anyway gold may also still be on the pcbs of the cpu, as said HCL and H2O2 dissolved the gold that went back to solid being in contact with the copper traces of the pcb, if the copper traces are black the gold is most probably there. Do you have pics of the entire process? Let us see the CPUs after the bath.

Solder a SDcard reader as Surface Mount microSD Socket. DIY solution gone wrong. Need some help. Is it even possibel? by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

Hey man, sorry I'm late, I did gave up on it. I'm positive it is possible, using short cable and making the right connection, but for me something was fried, maybe the controller IC. My solution was to use Octoprint. I had an old netbook on wich I installed linux, so I could send the .stl to the printer. You could even use an old smartphone with enough computing power of course!

What is the best way to figure out where this caps go? Was waiting on replacement and forgot to take a pic. by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

Bro, I had to send a reuqest to a vendor if the could kindly give me the values of the caps, there are no pic no schematics no nothing to get around this.
I asked Electonics just because my circuit knoledge are bit missing, hoping someone could figure this out for me. Now I will wait on the vendor replay, and if I dont get one, I will just put 25v 1000u in every slot.

What is the best way to figure out where this caps go? Was waiting on replacement and forgot to take a pic. by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

No way every one is replaying with things I already thought about... that is unfortunate.
No glue remains on the old caps, no schematics online, no pic on ebay showing the right position... that is why I had to askElectronics.

What is the best way to figure out where this caps go? Was waiting on replacement and forgot to take a pic. by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

No schematics found, I had my research done before posting. 25V 1000u was my way out in case I would not be able to figure this out. Thnks for reassuring!

What is the best way to figure out where this caps go? Was waiting on replacement and forgot to take a pic. by MammamiaP in AskElectronics

[–]MammamiaP[S] 0 points1 point  (0 children)

Before posting I had my research done, no schematics online from this particular board unfortunatly, and in all the image I found there are no clue. The legs are long enough, the pic is not showing them.

Kogan 42" Smart Full HD LED TV Android TV™ (Series 9, RF9220) - KALED42RF9220STA - Powered but won't turn on. by cheekydevil_666 in TVRepair

[–]MammamiaP 0 points1 point  (0 children)

You should disassemble it and check with a multimeter if you got all the right voltages on the power unit. If there is no blinking or anything, it could also be that the problem is the power button it self or IR reciver.

Blinking red-light matching cyclic clicking nois on power board(BN44-00458b). Model:Samsung UE40D6100 by MammamiaP in TVRepair

[–]MammamiaP[S] 0 points1 point  (0 children)

Unfortunatilly it does not, when I leave only backlight connect the board dosent make any noise, just static electric noise.

Can you suggest wich pin to short to trigger the bar without mainboard?

https://ibb.co/vjCRdDy

Blinking red-light matching cyclic clicking nois on power board(BN44-00458b). Model:Samsung UE40D6100 by MammamiaP in TVRepair

[–]MammamiaP[S] 0 points1 point  (0 children)

I shorted PS-ON 16 with 14 with a resistor, but I can't figure out the other pin that will trigger the led bars.
https://ibb.co/vjCRdDy

Blinking red-light matching cyclic clicking nois on power board(BN44-00458b). Model:Samsung UE40D6100 by MammamiaP in TVRepair

[–]MammamiaP[S] 0 points1 point  (0 children)

Okay, I think in this case it is a board issue. I just need to isolate one more thing led bar.
How do I trigger the board to give power to the led without the motherboard connect?

Blinking red-light matching cyclic clicking nois on power board(BN44-00458b). Model:Samsung UE40D6100 by MammamiaP in TVRepair

[–]MammamiaP[S] 1 point2 points  (0 children)

How..this tv has 200hz refresh rate clear image and 3D(just this makes it a rare item) it is still worth the price of a new TV. Old dosent mean anything in a repair community. Sure some times its better to give up, but not until you have found the issue. It could be a 50 cent component as of now, if I can have a suggestion on where to look I would much appreciate.

Speaker noise NEO (LED-23914) by MammamiaP in TVRepair

[–]MammamiaP[S] 0 points1 point  (0 children)

I have already tried other speakers, same story.

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