Tuesday, 28 April 2026

Cheap yellow Display + si4732 flexprint

After my first attempt with a Cheap Yellow Display (CYD) ended with the CYD having an unresponsive touch panel here I made a second one with a different CYD which has a much better resistive touch screen.

3d printed a case for it to fit in, whcich involved direct wiring as there was no room to use the plug in connectors/wires.
The case is not my design, I got it from here: https://www.thingiverse.com/thing:7047135
The software is from here... https://macsbug.wordpress.com/2026/01/



Using a Quansheng si4732 v5 FPC Modification Module for K5 shortwave

Fabricated a small board to hold the Quansheng UV5 v5 HF mod flexprint, HXJ8002 audio amplifier and speaker.  Soldered a small piece of desolder braid over the si4732A10 chip to help against interference.



Hard wired the cables as there is no room for connectors



Finished radio, works OK apart from some small audio noise, maybe the i2c bus??
Left antenna is VHF and right antenna is SW/MW/LW












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