Sharp Lc-40le185m Service Manual (Ad-Free)

What the manual says: 3 blinks = Power supply failure or shorted secondary diode. Step-by-step:

| Pin/Connector | Label | Voltage (Standby) | Voltage (On) | |---------------|-------------|------------------|---------------| | P7001 (to main) | P-ON | 0V | 3.3V-5V | | | 12V | 0V | 12V | | | GND | 0V | 0V | | | LED_DRV_EN | 0V | 3.3V | | | PWM_DIM | 0V (or variable) | 1.5–3.3V | | | AC_DET | 3.3V | 3.3V (on good AC) | sharp lc-40le185m service manual

LED backlight connector (CN7201) – measures 70–150V DC depending on string count. What the manual says: 3 blinks = Power

The LE185M series uses a 2-board design (plus power supply): The LE185M series uses a 2-board design (plus

Note: No separate TCON – it’s on the main board.