T800 T900 Smart Watch Circuit Diagram IC Details Repair Guide
T800 and T900 Smart Watch Motherboard Circuit Details. The T800 and T900 series smart watches use a compact motherboard that combines power management, charging, touch control, audio, vibration, display, wireless charging, and health-sensing functions into a very small circuit area. For technicians, understanding the board-level components is useful when troubleshooting charging problems, power failure, touch issues, display faults, vibration problems, or audio-related faults. This guide is based on the LJ736-MB-V2.3 board and the component information supplied for the S2335017 unit. Component markings can vary between production batches, so the actual board should always be checked before replacing an IC or transistor. Board Identification. The motherboard information provided for this unit is: Board Number: LJ736-MB-V2.3 Serial Number: S2335017 Power and CPU IC: JQ7011 Touchscreen Controller IC: CSI8160 Charging IC: 9212 Charging Protection IC: 61N UE Switching IC: UC25H0 16 The motherboard con…