Replacement LCD Screen for DSO nano

Replacement LCD for DSO nano, purchase this if you broke the original one on your DSO. Please note that you need basic soldering skill to install this LCD to your DSO.

Model: LCD109E1P


Application Ideas


The warnings and wrong operations possible cause dangerous.


It is the schematic, the circuit about Eagle resource like .pdf should linked here in order to avoid memory exhausted.


May include key specification and other specifications.

Pin definition and Rating

Mechanic Dimensions


Hardware Installation

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:

  1. A sharp knife (Or something else sharply)
  2. 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


Includes important code snippet. Demo code like :

Demo code


The projects and application examples.

Bill of Materials (BOM) /parts list

All the components used to produce the product.


Please list your question here:


If you have questions or other better design ideas, you can go to our forum or wish to discuss.

Version Tracker

Revision Descriptions Release
v0.9b Initial public release Jan 31, 2010

Bug Tracker

Bug Tracker is the place you can publish any bugs you think you might have found during use. Please write down what you have to say, your answers will help us improve our products.

Additional Idea

The Additional Idea is the place to write your project ideas about this product, or other usages you've found. Or you can write them on Projects page.


The resources need to be downloaded, like Eagle file, Demo code, project or other datasheet.

How to buy

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See Also

Other related products and resources.


This documentation is licensed under the Creative Commons Attribution-ShareAlike License 3.0 Source code and libraries are licensed under GPL/LGPL, see source code files for details.

External Links

Links to external webpages which provide more application ideas, documents/datasheet or software libraries.

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