File:Vtech NB403-IL rev. P02 - PCB top, zoom-in on U7 (M3tek IT76730M), X1 (UART), U3 (AMS1117).jpg

Summary
VTECH NB403-IL rev. P02 – PCB top, zoom-in on U7 (M3tek IT76730M), X1 (UART), U3 (Advanced Monolithic Systems AMS1117)