Electronics > Repair
CH341A Serial Memory Programmer Power Supply Fix
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johnmx:

--- Quote from: davidm71 on November 11, 2017, 06:25:01 pm ---Ok. So then why did they put on the market a defective bios programmer?!

--- End quote ---
I guess it is the first time you buy a chinese device.
Everything you buy from Aliexpress or similar is a crappy clone of the original.
In order to sell a low cost version of some device, they always use counterfeit parts and remove non-critical components.
If someone creates an apparent compatible circuit that costs 1 cent less, they start to sell it under the same name and description of the previous device.
They don't care about quality, only money!
davidm71:
Ok well I'm not going to try to repair this on the grounds I'm not sure how to do the repair.

Is there a Brand name you recommend? The green one has been vetted on Win-Raid. Not sure which one?

Thanks.


What do you guys think of this product? Its a Flashcat Programmer. Comes with a 3.3v/5v switch..


https://www.amazon.com/dp/B00F2P9AS6/?tag=phpprogramme
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davidm71:
Just a quick update. I used my CH341A Black along with a SOIC8 Clip test adapter to jump start my dead Netbox back to life.
Nothing got short circuited, the world didn't come to an end, and it just worked with out the 5v paranoia.
johnmx:

--- Quote from: davidm71 on November 19, 2017, 08:43:26 pm ---Just a quick update. I used my CH341A Black along with a SOIC8 Clip test adapter to jump start my dead Netbox back to life.
Nothing got short circuited, the world didn't come to an end, and it just worked with out the 5v paranoia.

--- End quote ---
It is no surprise that it worked. But as an EE Engineer I don't recommend to use the circuit like that.
davidm71:

--- Quote from: johnmx on November 19, 2017, 09:04:29 pm ---
--- Quote from: davidm71 on November 19, 2017, 08:43:26 pm ---Just a quick update. I used my CH341A Black along with a SOIC8 Clip test adapter to jump start my dead Netbox back to life.
Nothing got short circuited, the world didn't come to an end, and it just worked with out the 5v paranoia.

--- End quote ---
It is no surprise that it worked. But as an EE Engineer I don't recommend to use the circuit like that.

--- End quote ---

Sad thing is I couldn't get it to work with the FlashcatUSB programmer. That one had a 3.3v setting.
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