LG 42LH90 - Picture Settings: Reset to Defaults; Performing a Picture Reset

LCD DV 42LH90
77
February 2010
Main Board Connector P700 to Power Supply Voltage and Diode Chec
Main Board Connector P700 to Power Supply Voltage and Diode Chec
k
k
Diode Mode values taken with all Connectors Removed
2.6V5V0VPWR-ON2
GndGndGndGnd4
GndGndGndGnd6
1.1V5.15V5.15V5.2V8
1.1V5.15V5.15V5.2V10
GndGndGndGnd12
2.2V12V0V12V14
GndGndGndGnd16
Open24V0V24V18
2.9V4.65V0VInv_On20
Open0V0VErr Out22
1.3V2.43V0V
2
PDIM24
Diode
Check
Run STBYLabelPin
Openncncnc1
GndGndGndGnd3
GndGndGndGnd5
1.1V5.15V5.15V5.2V7
1.1V5.15V5.15V5.2V9
GndGndGndGnd11
2.2V12V0V12V13
GndGndGndGnd15
Open24V0V24V17
Openncncnc19
Open1.66V0.47V
1
A.DIM21
Openncncnc23
Diode
Check
Run STBYLabelPin
1
ADIM Pin 21 Fixed and not used.
It is an Open connection on the Inverter Board.
2
PDIM Pin 24 can vary according to type of signal
being processed, OSD Backlight setting. 0.6V 0%
to 3.3V 100% and the Intelligent Sensor. Output
from the Video Processor IC100.
P700 “Main Board" to P201 “SMPS"
Odd Pins Even Pins
P700