LG 50PS80 Series, Руководство по обучению

Страница: 135 / 139

135
August 2009 Plasma 50PS80
Side Key Assembly
Side Key Assembly
P1 Resistance Measurements with Key pressed.
Menu
Enter
Volume (-)
Volume (+)
KEY
9K Ohms
22K Ohms
0.62K Ohms
3.6K Ohms
Pin 2 measured
from Gnd (KEY 2)
3.66K Ohms
9K Ohms
0.61K Ohms
Pin 1 measured
from Gnd (KEY 1)
Input
CH (Dn)
CH (Up)
KEY
PRESSED
c
P1 Voltage Measurements with Key pressed.
P1 Connector “Side Key" to “IR/LED Control PWB“ J2 (No Key Pressed)
Gnd
PWR SW
KEY 2
KEY 1
Gnd
Gnd
3.3V
3.3V
*STBY2
Open Gnd Gnd 4
Open Gnd 4.38V 3
Open 3.3V 0V 2
Open 3.3V 0V 1
Diode Mode Run *STBY1 Pin
STBY1
PWR SW
Out
STBY2
PWR SW
In
Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode.
Menu
Enter
Volume (-)
Volume (+)
KEY
1.56V
2.2V
0.19V
0.86V
Pin 2 measured
from Gnd (KEY 2)
0.88V
1.57V
0.19V
Pin 1 measured
from Gnd (KEY 1)
Input
CH (Dn)
CH (Up)
KEY
PRESSED