Main Board Connector P600 To Speakers Voltage And Diode Check - LG 32LD350 Troubleshooting Manual

Main Board Connector P600 to Speakers Voltage and Diode Check

Main Board Connector P600 to Speakers Voltage and Diode Check
Use speaker out to test for defective Audio Amp IC600
Note: (Normal, ½ Audio B+)
P600 CONNECTOR "Main" to "Speakers"
Pin LABEL
1 1 SPK R( ) SPK-R(-)
2 SPK-R(+)
3 SPK-L(-)
4 SPK-L(+)
Diode Mode values taken with all Connectors Removed
Circuit Location
on the Main Board
Q600 (Mute) on back side of the board just above
IC600 is Active Low.
Normal 3.35V Collector to Pin 25
( , ½
SBY Run
0V 0V 12.95V 12 95V
0V 12.95V
0V 12.95V
0V 12.95V
Audio B+
Pins 32-35
)
Audio B+
Pins 49-52
Diode Check
Open Open
Open
Open
Open
60
Mute
Pin 25
24.17V
24.17V
(1) (1)
P600
R- R+
November LCD TV 32LD350
1.8V_Amp
Pin 16
IC600
L- L+