LG 42PW350 - P700 Main Board Speaker Plug Voltage and Diode Check

Voltage and Diode Mode Measurements for the Main Board Speaker Plug
P700 Main Board Speaker Plug Voltage and Diode Check
P700
Connector
"
Main
"
to
"
Speakers
"
Pin Label Run Diode Mode
1 R- 0V~1.0V Open
2
R
+
0V
~
1.0V
Open
P700
Connector
Main
to
Speakers
IC700
Audio Amp
2
R
0V 1.0V
Open
3 L- 0V~1.0V Open
4 L+ 0V~1.0V Open
Audio Right out pin 6 and 9.
Audio Left out pin 10 and 13.
17V Audio Amp Power: Right pins 8. Left pins 11.
33V
Low Voltage Signal Processing: Pins 21 35
1
3
.
3V
Low
Voltage
Signal
Processing:
Pins
21
,
35
.
Audio Mute: Pins 23, control is AC_DET.
Right (-)
Right (+)
Left (-)
Left (+)
June 2011 42PW350 Plasma
150
P700
Speaker Connector
Diode Mode Check with the Board Disconnected. DVM in the Diode mode.