Ballast Connector Mcn1 Voltage And Diode Check - LG 42LG70 Training Manual

Ballast Connector MCN1 Voltage and Diode Check

Ballast Connector MCN1 Voltage and Diode Check
MCN1 "Ballast" to P204 "SMPS"
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
VBR-A Pin 11 Fixed and not used
2
VBR-B Pin 13 can vary according to type of signal being processed, OSD Backlight setting.
0.9V 0% to 3.3V 100% and the Intelligent Sensor. Output from the BCM chip.
Label STBY
VIN 0V
VIN 0V
VIN 0V
VIN 0V
VIN 0V
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd_1 Gnd
1
VBR_A 0V
On/Off 0V
2
VBR_B 0V
ERROR-OUT 0V
Run Diode Check
24V Open
24V Open
24V Open
24V Open
24V Open
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd Gnd
1.7V Open
3.2V Open
1.4V Open
0V Open
March 2009
43
Diode Mode values taken with all
Connectors Removed
LCD DV 42LG70