LG 37LH55 - BALLAST CIRCUIT - ON MAIN PWB TO POWER SUPPLY OUT TO BALLAST MCN-1 - SCHEMATIC DIAGRAM - BALLAST CONNECTOR VOLTAGE & DIODE CHECK

LG 37LH55 P700 on Main PWB To Power Supply P201 Out P203 To Ballast MCN 1.
                                                     Click on images to Enlarge

• PWM-DIM(PWM Dimming) Manipulates the Backlight Brightness via Customer’s OSD.  Manipulates the Backlight Brightness via the video processor IC100.
• Darker Picture, Darker Backlights to facilitate improved Contrast Ratio. 0.6V ~ 3.3V Range.

BALLAST CONNECTOR CN1 & CN4 VOLTAGE AND DIODE CHECK