Beware of cheap underperforming clones
As of 2023 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.
See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.
NanoVNA V2 Forum
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Nanovna v2 plus 4 display issue
Edward Prest 2023/09/20 15:47
>
> I have a ssa early version v2 plus 4 working fine via usb except no more
> display.
Checking the display interface I see good signals except for ...
pin 4 T-CS
And
PIN 10 LCD-DC which look horrible like noisy tri-state.
They both come from adjacent pins on the CPU.
They come to/from the cpu and I buzzed out good connections. Recent FW. Good power.
Is this normal or have I blown these outputs somehow???
. (I have 2 displays and both are solid white with nothing else showing.
Edward Prest 2023/09/21 05:36
T-CS is for touch screen. ( correction SAA not ssa h/w)
LCD-DC ?
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