Local Dimming Drive Waveforms - LG 55LW5600 Troubleshooting Manual

P832 Local Dimming Drive Waveforms
P832 "SMPS" to P1601 "MAIN"
Pin Pin Label Label
1 VSYNC
2 SDA
3 SCL
4 SIN
5 Gnd
6 L/DIM0_SCLK
7 n/c
8 Reverse
2mSec/div 2mSec/div
P832 Pin 1 VSYNC
3.5V p/p
Top Waveforms are 500uSec/div
Bottom Waveforms are 100uSec/div
P832 Pin 2 SDA 3.3V p/p
P832 Pin 4 SIN 3.35V p/p
60
P832 Pin 3 SCL 3.2V p/p
P832 Pin 6 SCLK 3.3V p/p
July 201 1 LCD TV 55LW56000