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Power Unit Vs, Va Adjustment
Applicable Model
All models
Preparation
(1) Turn on the set and perform
pre-heat run more than 1 min
on burn-in screen.
(2) Receive full back pattern signal
(or Video silence signal;
but it will be automatically turned off
after a few seconds by power save function.)
(3) Connect voltmeter leads to Vs
(or Va) and GND test points of the power unit.
M
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7
4
1
5
S
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* *
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* *
MADE IN THAILAND
(1) Turn Vs ADJ to adjust Vs voltage
to be within ±0.1V of the value
specified in the label on the panel.
Adjust within ± 1V at Vs1
Adjust within ± 0.1V at Vs2
(2) Turn Va ADJ to adjust Va voltage
to be within ±0.2V of the value specified
in the label on the panel.
Adjust within ± 1V at Va1
Adjust within ± 0.2V at Va2
Reconfirm that Vs voltage remains within
(3)
±0.1V of the specified value.
Readjust if itís outside of the margin.
Label example
<LOT>N6
Vs= 80.0V
Vw=140.0V
Label
Power
Y-sus
X-sus
Supply
Unit
Panel Module
Procedure
Va=60.0V
Vx=60.0V
(Rear View)
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9
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PDM-4220
17
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