COMPAL LA-D401P REV: 1.0 SAVE 332 DA0AM6BBA0
is a proprietary motherboard manufactured by Compal Electronics HP Spectre 13-v
: Sites like Badcaps and Lab-One Forum are primary hubs where technicians share and discuss boardview files and schematics for Compal boards. la-d401p schematic
The PFC circuit boosts the rectified voltage (approx 320V DC) up to a higher DC voltage (typically around 380V–400V). This ensures the power supply runs efficiently.
Typically supports DDR3L or DDR4 (refer to your specific revision's voltage rails). COMPAL LA-D401P REV: 1
| Fault | Detection | Action | |-------|-----------|--------| | | Voltage across R7 exceeds threshold (≈0.2 V) | U4 forces Q1 OFF, LED1 ON | | Over‑Temperature | TMP1 voltage > set point (≈150 °C) | Same as above | | Under‑Voltage | Input drops below 10 V (detected by U3) | Driver held off until voltage recovers | | Reverse Polarity | D1 conducts in reverse | Prevents damage to downstream circuitry |
The LA-D401P is a TV mainboard designed by LG, commonly used in various LG TV models. Analyzing its schematic can provide valuable insights into the board's functionality, helping with troubleshooting, repair, or even modifications. Typically supports DDR3L or DDR4 (refer to your
Without a schematic, motherboard repair is blind guesswork. With it, you transform into a systematic troubleshooter. Here is what the LA-D401P schematic provides: