APW70 LAC391P is a motherboard model used in the Dell Latitude 3510
Would you like guidance on tracing a specific part of the board (power, audio, or display)?
Often managed by an Intersil or similar PWM controller, this section is vital if the laptop won't charge or run off the battery. Common Hardware Issues & Diagnostics
Battery (3.7V) → Charger IC (TP4056) → APW70 Buck-Boost → 5V/3.3V rails ↓ LAC391P LCD driver ↓ Backlight driver (boost)
APW70 LAC391P is a motherboard model used in the Dell Latitude 3510
Would you like guidance on tracing a specific part of the board (power, audio, or display)?
Often managed by an Intersil or similar PWM controller, this section is vital if the laptop won't charge or run off the battery. Common Hardware Issues & Diagnostics
Battery (3.7V) → Charger IC (TP4056) → APW70 Buck-Boost → 5V/3.3V rails ↓ LAC391P LCD driver ↓ Backlight driver (boost)