E1201

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E1201-ICs.jpg

Primary board of many TaoTronics hand held barcode scanners. Teh PCB is approximately 2 inches square and has a oscillating mirror, laser and light sensor on top. Currently in process of reverse engineering complete schematics in KiCad. Thus far have determined there is an ONsemi LM324 Quad Op-amp connected to the mirror oscillation circuitry.



E1201-PCB-1-map.jpg

The red splotches are areas that have been added to schematic.


E1201-schematic.png

In progress schematic roughly aproximating reversed geography of original pcb.



E1201-pcb.png

Roughed in sections in three segments grouped around IC's. Left most section is Quad OpAmp, other two are unidentified chips. All resistors and caps placed on 100mil grid with hand solderable 0805 pads, and 3 pin components as SOT-23, these are all likely larger than original.


E1201-PCB-0.jpg

E1201-PCB-1.jpg