another "can this be transformed to 5v" thread

Camble · Post by **Camble** » Thu Nov 24, 2016 6:34 am

Imperial_Fire wrote:Did anyone ever figure out how to modify this board for 5 volts?

As @chaosratt suggested, if someone can provide the writing from the top of the two 8-pin chips, we can look up the datasheets and find out how to bypass the voltage regulator.

Imperial_Fire · Post by **Imperial_Fire** » Thu Nov 24, 2016 8:59 pm

They're really hard to read but I manged to snap some photos
The one near the large capacitor is A5269 BM56AC .

: 20161125_145334.jpg (314.13 KiB) Viewed 7842 times

The other is MAIKE 25040BSSIG 1446

: 20161125_145110.jpg (1011.98 KiB) Viewed 7842 times

Mtuckey · Post by **Mtuckey** » Fri Nov 25, 2016 7:23 am

well if all else fails, you can always get a 5v to 12v dc to dc boost converter. wont be as power efficient but it should get the job done.

fcib · Post by **fcib** » Fri Nov 25, 2016 5:35 pm

Imperial_Fire wrote:They're really hard to read but I manged to snap some photos
The one near the large capacitor is A5269 BM56AC .20161125_145334.jpg

The other is MAIKE 25040BSSIG 144620161125_145110.jpg

http://www.datasheetlib.com/datasheet/1 ... #datasheet

Use a jumper or solder the red wire to pin 3 of the A5269 chip.

That is connected to the output, so it should work. Don't blame me if you burn your house down though.

Imperial_Fire · Post by **Imperial_Fire** » Fri Nov 25, 2016 5:50 pm

fcib wrote:
Use a jumper or solder the red wire to pin 3 of the A5269 chip.

That is connected to the output, so it should work. Don't blame me if you burn your house down though.

That's what I was guessing after reading the spec sheet. It will be fun to solder the tiny pin :S

Imperial_Fire · Post by **Imperial_Fire** » Sun Nov 27, 2016 7:26 am

I soldered the wire to pin 3. I'm pretty sure I killed it. I'll try a few more things tomorrow

Ummi · Post by **Ummi** » Mon Nov 28, 2016 2:45 pm

I have the same Display, you need to connect your 5V to Pin 2 of the A5269 Voltage Regulator. Pin Number 3 ist the 3,3V output of the Voltage Regulator unfortunately that means you killed the whole board
Here is a picture how i connected the Voltage Regulator:

http://imgur.com/a/Z4KoE

Imperial_Fire · Post by **Imperial_Fire** » Thu Dec 01, 2016 1:11 pm

Ummi wrote:I have the same Display, you need to connect your 5V to Pin 2 of the A5269 Voltage Regulator. Pin Number 3 ist the 3,3V output of the Voltage Regulator unfortunately that means you killed the whole board
Here is a picture how i connected the Voltage Regulator:

http://imgur.com/a/Z4KoE

I'll fiddle around with it when I can, but you're right, the board is probably dead.

Thanks for the info.

another "can this be transformed to 5v" thread

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