JYE Tech Forum

Surface capacitive trimmer has been such a deformed before I solder to the PCB. rotating them goes slightly.

there is a larger display DSO138, maybe 3,5, or 4 inches?
display 2,4 inches seems too small ...

C7 change to 330p and C6 - 68 to 180p and it's ok

- Gigasport.com

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The following sellers are reported selling fake DSO138 kits. The kits they sell are pirate copies of the DSO138 kit without a single change. They copied PCB, firmware, and manual. They do not take any responsibility of the products they sell. It is encouraged that buyers stay away from these seller...

????

Yes, Both of them. C4, C6 - 30pF. Where is betrayal? change the capacity C4, C6? measured capacity is constant 44pF, and does not alter

Why not respond capacitive trimmers to rotate and display nothing has changed? ..

HI,
What are jumpers and what you do with them?:
Main board SMD jumper: JP1, JP2, JP3, JP4, JP5, JP6, and display board - JP2