Help BW screen variant 13 5V conversion

GiacomoB · Post by **GiacomoB** » Sat Feb 09, 2019 10:35 am

Hi guys I'm doing my first GBZ, I have a BW screen similar to the variant 12, the right chip is 90° rotated and a few components are different located.
I would like to know how to convert it to 5V.

Thanks for the support guys!

correia5022 · Post by **correia5022** » Sun Feb 10, 2019 8:08 am

You better take some better photos, especially the ic's

GiacomoB · Post by **GiacomoB** » Sun Feb 10, 2019 2:01 pm

I change the photo

correia5022 · Post by **correia5022** » Sun Feb 10, 2019 4:35 pm

Have you tried to wire 5v to it?
That RZC2013 IC operates with a range voltage of 4.75V to 27V, so you should be fine.

correia5022 · Post by **correia5022** » Sun Feb 10, 2019 4:35 pm

Here's the datasheet
http://img009.hc360.cn/m8/M07/AA/BB/wKh ... jTI860.pdf

GiacomoB · Post by **GiacomoB** » Mon Feb 11, 2019 10:15 am

Thanks correia!
I took a look on datasheet, sorry I'm not sure, I have to wire PIN2 VIN?

correia5022 · Post by **correia5022** » Tue Feb 12, 2019 5:16 am

No, you must wire it to SW (power switching) - Pin3
But first, as a precaution, wire it normal 12v and measure the voltage across that pin 3 and confirm its 5v
If its really 5v, solder a wire from vcc to pin3

correia5022 · Post by **correia5022** » Tue Feb 12, 2019 5:24 am

Let me rephrase it.
First wire it normally with 12v, and measure the voltage across pin3 and gnd.
Then try to use 5v directly to vcc. If it doesnt work, then mod it connecting vcc and pin3

Help BW screen variant 13 5V conversion

Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

Re: Help BW screen variant 13 5V conversion

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