Panasonic TC-L42D30

22
TC-L42D30 LD Board (LED Driver)
Measure Voltages at the
connectors. No test point (TP)
needed
CN LD2 LD-Board
Pin # Voltage
1 98.8V
2 NC
3 10.6V
4 10.4V
5 10.6V
6 10.5V
7 10.4V
8 10.8V
9 10.4V
10 10.9
11 NC
12 98.8V
CN LD4 LD-Board
Pin # Voltage
1 24V
2 24V
3 24V
4 24V
5 24V
6 GND
7 GND
8 GND
9 GND
10 GND
11 BL_SOS
12 BL_ON
13 GND
14 PWM
T-CON
LED DRIVER
CN LD2
CN LD4
A disconnected connector LD2 provides 1 blink of the power LED after 9 seconds of power On.
A disconnected connector LD4 provides 1 blink of the power LED after 7 seconds of power On.
12V Test Point
L
V
D
S
C
A
B
L
E
A disconnected LVDS Connector provides 10 blink of the power LED after 5 seconds of power On.