<Purpose>
Picture problem such as “Picture Noise and or Vertical Line”
displayed
all over the screen is mainly caused
by a defective D or A board. The “internal Test Pattern Generator”
can help determine whether to replace the D
or A board. The test patterns are created by the D board. Follow
the steps below to confirm the operation of the
D or A boards.
Diagnosis by Test Pattern When OSD is Available
<How to enter the Test Pattern>
1. While pressing "VOLUME-" button of the TV set,
press "RECALL" button of the remote control three
times within 3 seconds.
2. Push button
"1" of
the Remote Control several times
to select
the “AGING" setting.
3. Press the number “3" button or the number “4”
button of
the Remote Control to select the test
pattern.
A Board (or D board)
D Board
Defective Board
Normal
Abnormal
Pattern
<Test Pattern (Normal)>
<Diagnosis>
<Model>
All Models
White (by A)
Scroll
White (by D)
A and B zone
Red
Color bar
Green
1% window
Blue
Ramp red
on/off AgingRamp white
Ramp blue
Ramp green
<Test Pattern (Abnormal)>
Example Picture
<Symptom>
Picture Noise, Full Vertical Line
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