LG 42LV5500 Training Presentation page 71

JK1001 Main Wireless Media Box Dongle Jack (Voltage and Diode Check)
JK1001 "MAIN Board" To "Wireless Media Box Dongle"
Pin Pin
1-6
7
8
9
10
11
12
13
14
15
16 16
17
18
19-20
Voltages with Wireless Media Box Dongle plugged in. Use Media Box Dongle side to read voltages.
Label Label STBY STBY
*24V 0V
Detect 0V
Interrupt 0V
Gnd 0V
n/c 0V
Gnd 0V
I2C_SCL _ 0V
I2C_SDA 0V
Gnd 0V
Wireless_RX 0V
Wireless_TX Wi l TX 0V 0V
Gnd 0V
IR 0.67V
Gnd 0V
Remove cover, (see Wireless Media Box training manual for details).
*24.5V Switched from Q1002 Drain front side of the board.
Q1002 turned on by Q1001 front side of the board. Q1002 turned on by Q1001 front side of the board
Q1001 turned on by Microprocessor pin 38.
Run Run Diode Check Diode Check
24.5V 0.98V
0.3V 0.98V
3.3V 1.2V
Gnd Gnd
3.3V 1.1V
Gnd Gnd
3.3V 1.02V
3.3V 1.02V
Gnd Gnd
3.3V 1.17V
3 3V 3.3V 1.22V 1 22V
Gnd Gnd
3.3V 1.37V
Gnd Gnd
71
Wireless Media Box Dongle Wireless Media Box Dongle
must be plugged in for
these voltages.
JK1001
Jack J k
1
Diode Mode values taken
with all Connectors
Removed
May 201 1 LCD TV 42LV5500