LG 42LH50 - P201 Connector Checks

2009 FALL LCD DV 42LH50
35
Power Supply Connector P201 Voltage and Diode Check
Power Supply Connector P201 Voltage and Diode Check
Diode Mode values taken with all Connectors Removed
1.19V4.5V0VPWR-ON2
GndGndGndGnd4
GndGndGndGnd6
2.85V5.06V5.06V5V8
2.85V5.06V5.06V5V10
GndGndGndGnd12
1.2V12.3V0V12V14
GndGndGndGnd16
0.81V21.4V0V24V18
2.25V4.5V0VINV.ON20
Open0V0VErr Out22
Open3.3V0V
2
PDIM24
Diode
Check
Run STBYLabelPin
P201 Even "SMPS" to P2400 "Main PWB"
ncncncnc1
GndGndGndGnd3
GndGndGndGnd5
2.85V5.06V5.06V5V7
2.85V5.06V5.06V5V9
GndGndGndGnd11
1.2V12.3V0V12V13
GndGndGndGnd15
0.81V21.4V0V24V17
ncncncnc19
Open1.75V0V
1
A.DIM21
ncncncnc23
Diode
Check
Run STBYLabelPin
P201 Odd "SMPS" to P2400 "Main PWB"
1
ADIM Pin 21 Fixed and not used
2
PDIM Pin 24 can vary according to type of signal
being processed and the OSD Backlight setting.
0.6V 0% to 3.3V 100%. Output from the video
processor IC100.