Lg Electronics 47LE8500 Manuale Utente
July 2010 LCD TV
47LE8500
87
Front Board Connectors CON1, CON2 and CON3 Voltage and Diode Ch
Front Board Connectors CON1, CON2 and CON3 Voltage and Diode Ch
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Diode Mode values taken with all Connectors Removed
CON1 "Front IR" to P8200 " MAIN"
Open
0V
0V
LED_R/BUZZ
12
Open
3.3V
0V
+3.3V_Normal
11
Gnd
Gnd
Gnd
Gnd
10
Open
1.54V
1.57V
(2)
IR
9
Open
0V
0V
LED_LOGO
8
Gnd
Gnd
Gnd
Gnd
7
Open
3.45V
3.45V
3.5V_ST
6
Open
3.29V
3.29V
KEY 2
5
Open
3.29V
3.29V
KEY 1
4
Gnd
Gnd
Gnd
Gnd
3
Open
3.45V
3.45V
(1)
SDA
2
Open
3.45V
3.45V
(1)
SCL
1
Diode
Check
Run
STBY
Label
Pin
Open
3.36V
3.45V
8
Open
3.36V
3.45V
7
Gnd
Gnd
Gnd
6
Open
3.28V
3.28V
5
Open
3.3V
3.3V
4
Gnd
Gnd
Gnd
3
Open
1.63V
0V
2
Open
3.36V
3.45V
1
Diode Check
Run
STBY
Pin
Gnd
Gnd
Gnd
4
0
0.6V
1.36V
3
Gnd
Gnd
Gnd
2
1.5
3V
3.45V
1
Diode Check
Run
STBY
Pin
CON2 "Front IR" to “Soft Touch Key Board"
CON3 "Front IR" to “LG Logo Board"
(1)
Clock pulses only present when Intelligent Sensor is
turned on. (3.7V p/p)
(2)
IR pulses (1.6V p/p)
Leandro
Palmeira