Friday, January 10, 2014

T-CON BOARD - CHECKS - LG47LG90 - LED LCD TV - PWB FUSE CHECKS


T-CON [TFT DRIVE] PWB
T-CON also drives the backlight LEDs in accordance to the necessary Light Source intensity according to the video content Contrast Ratio demands, (Local Dimming). Control signals to the Inverters are sent out.
CLICK ON THE PICTURES TO ZOOM IN
CN-301 & CN-804 - VOLTAGES
PWB - FUSE CHECKS
PWB REGULATOR & MAIN FUSE CHECKS
PWB _ DC to DC CONVERTER CHECKS
DC to DC CONVERTER [U7] CHECKS
CN-4 & CN-5 VOLTAGE CHECKS
CN-8 & CN-9 VOLTAGES AND RESISTANCES