Dismantle your DSO nano
Dismantel your DSO nano is pretty easy, but it’s still worth writing a tutorial to let people know what does DSO nano look inside before open it.
Note:
This tutorial is for information purposes, Dismantle the DSO nano and follow this tutorial at your own risk!
You will need:
A sharp knife (Or something else sharply)
A 1.4mm screwdriver
First you need to remove the top panel by using a sharp knife. The top panel is attached with the body by glue, be sure to do this slowly, or you will damage the acrylic panel .
Here you can see 6 screws(marked with white circle) after the top panel is removed. Remove them with a 1.4mm screwdriver, then go to the next step.
Remove the rest 2 screws, now you should be able to take the sub-board apart from the motherboard.
Sub-Board detailed pictures. 6 metal dome buttons were soldered on the top side, and 1×3.5MM TSR connector, 1X Mini usb connector on bottom. There’s also a board to board connector to attach the 2 separated PCB.
Here we go, now you can take the screen and motherboard away from the case.
1. controller: STM32
2. stabilized voltage supply : 3.3V voltage output
3. stabilized voltage supply : 3.0V voltage output
4. stabilized voltage supply : use a P3232 RS-232 transceivers to output +5V and -5V voltage
5. general purpose dual J-FET operation amplifier : to separate and scale the input signal
6. 8-Channel Analog Multiplexer : change the match channel for different V/div
About Author
I disassembled mine to fix a slanted socket and remove a piece of plastic on the LCD. Took some pictures and notes; maybe someone will find it useful or interesting…
http://nullcow.blogspot.com/2010/06/dso-nano-surgery.html
Can it be reprogrammed to be something else? Can we get the schemaitcs and source-code or sample code?
Hi, are source code and/or schematics documented anywhere?
No, it’s the test signal wire, i will post another pic to explain this later.
Hmm, such a big jump from 1.1 to 1.3a why not 1.1b or 1.2
Oh well, if its a revision for the good. then its good. Im glad it is revised
*is that a white jumper wire in the picture?
There’s some improvement on keyboard part, you should feel better when press the buttons now.
The pcb showed DSO201v1.3A, the schematic posted on the forums is DSO201v1.1
What are the differences? any updates?