LG 42PW350 - P106 Control Board LVDS Signals; LVDS Video Signal Test Points

LVDS Cable P106 on Control board shown.
Flip the locking tab upward to release.
P106 Control Board LVDS Signals
Pins are close together, use caution.
Video Signals from the Main Board to the Control Board are referred
to as Low Voltage Differential Signals or LVDS. The video is
delivered in 20 bit LVDS format. Their presence can be confirmed
ith th O ill b it i th LVDS i l ith SMPTE
P106
LVDS
w
ith
th
e
O
sc
ill
oscope
b
y mon
it
or
i
ng
th
e
LVDS
s
i
gna
l
s w
ith
SMPTE
Color Bar input. Loss of these Signals would confirm the failure is on
the Main Board or the LVDS Cable itself.
Example of LVDS Video Signal
Pin 41 5mSec per/div 100mV p/p Pin 40 5mSec per/div 100mV p/p
Pin 41 2mSec per/div 100mV p/p
Pin 40 2mSec per/div 100mV p/p
Example of Normal Signals measured at 1V p/p at 10µSec
Pins
12
~
17 22
~
25 28
~
33 38
~
41
are LVDS Video Signals
June 2011 42PW350 Plasma
120
Pins
12 17
,
22 25
,
28 33
,
38 41
are
LVDS
Video
Signals
.
Pins 19~20 and 35~36 are clock signals for the data.