LG 42LH50 - P2400 Connector Check

2009 FALL LCD DV 42LH50
59
Main PWB Connector P2400 to Power Supply Voltage and Diode Check
Main PWB Connector P2400 to Power Supply Voltage and Diode Check
Diode Mode values taken with all Connectors Removed
Open3.3V0V
2
PWM-DIM24
1.23V0V0VErr Out22
2.2V4.5V0VInv.Out20
Open21.4V0V24V18
GndGndGndGnd16
Open12.3V0V12V14
GndGndGndGnd12
1.54V5.06V5.06V5V10
1.54V5.06V5.06V5V8
GndGndGndGnd6
GndGndGndGnd4
Open4.5V0VPWR-ON2
Diode
Check
Run STBYLabelPin
ncncncnc23
Open1.75V0V
1
A.DIM21
ncncncnc19
Open21.4V0V24V17
GndGndGndGnd15
Open12.3V0V12V13
GndGndGndGnd11
1.54V5.06V5.06V5V9
1.54V5.06V5.06V5V7
GndGndGndGnd5
GndGndGndGnd3
ncncncnc1
Diode
Check
Run STBYLabelPin
1
ADIM Pin 21 Fixed and not used
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.
P2400 “Main PWB" to P201 “SMPS PWB"
Odd Pins Even Pins
P2400