This YiHua 939D+ is advertised as using "Samsung CPU Control", ESD protect, Sleep function, 3 Memory Presets.
It looks nice from the outside, good feel and build quality. But as with most chinese brand product, I just have to take a look inside before turning it on.





Filthy looking board


Hand Job anyone?


Despite the ugly look - the CAP tested OK for ESR.

The heating element measures 2.9ohm and 40-something ohm, a Hakko compatible right?

The tip fitted to the ceramic element. Very loose, I wonder if Hakko ones is a perfect fit. I am asuming as long as the tip insert hole has a good flat surface, it should perform.
I havent used it yet other than testing melting solder using different temp and test the tip temperature by a temp probe from a multimeter.
I really wish I can buy (genuine) hakko..really. But this will have to do for now.
BF
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