LG 60PX4DR Training Manual page 71

7) Reconnect the cable from the digital board connector P301, to the Digital VSC board connector
CN1300.
8) Reconnect the cable from Digital VSC board connector CN1700 to the Power Supply connector
P803.
9) Reconnect the cable from Analog / Tuner board connector P201 to the Power Supply connector
P802.
10) Reconnect the control panel cable to the Analog Tuner board P408 and P403, on the 60" model.
The 50" model only has connector
11) Use the nylon cable ties to secure all loose wiring. Inspect wiring for any pinched or damage
insulation and repair or replace if necessary.
This process completes the installation of the panel. The unit is ready to have AC power applied to the
set. The power supply Vs and Va run voltages must be checked and adjusted to the panel specifications.
The correct voltage settings are notated on an adhesive label placed on the backside of the panel.
VS AND VA VOLTAGE ADJUSTMENT
1) Apply power to the unit and turn it on. If the unit does not
operate correctly, check all connections and look for loose
wires that may have been missed or that have become
disconnected during the reassembly process.
2) Allow the unit to run for 5 minutes. This is to allow the set
to achieve operating temperature before checking the Vs
and Va run voltages. This step should be completed before
making adjustments to Vs and Va voltages.
3) Connect the positive ( + ) terminal lead of the digital multi-
meter to the Va pin of connector P805 and connect the
negative ( - ) terminal lead of the digital multi-meter to
the ground ( GND ) pin of P805.
4) Adjust variable resistor RV501 to match the Va voltage specification shown on the label attached
to the panel. ( Deviation: ±0.5v )
5) Connect the positive ( + ) terminal lead of the digital multi-meter to the Vs pin of connector
P805 and connect the negative ( - ) terminal lead of the digital multi-meter to the ground (
GND ) pin of P805.
6) Adjust variable resistor RV401 to match the Va voltage specification shown on the label attached
to the panel. ( Deviation: ±0.5v )
7) After confirming the Vs and Va run voltages, the set is ready to reassemble.
Plasma Training
71
DISASSEMBLY
Disassembly