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6.6 Troubleshooting
Troubleshooting
.
Find any failure from
the column below.
.
Follow along the line
to
the
right
where
marked with "○" and
then follow upward to
find suspected cause
and action to be taken
described in the upper
columns.
Image quality
The screen rotates, missing sync.
○
Too narrow screen width
Too wide screen width
Too small screen height
Too large screen height
The screen is not at the center.
Ditto
The screen is too dark.
○
The screen is too bright.
○
White balance is bad.
Any of 3 color beams is missing.
Color purity of white is bad.
Image is not sharp (bad focusing).
No image appears.
Overshoot and smear appear.
○
Noise on the screen.
○
The power indicator does not light.
Color varies if brightness varies
○
Arc in CRT
Protection and
Installation
adjustment function
Refer to description in each column
○
WIDTH 1, 2 VR (VR101, 102)
○
WIDTH 1, 2 VR (VR101, 102)
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HEIGHT VR (VR18~21)
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HEIGHT VR (VR18~21)
○
H-PHASE VR (VR14~17)
○
V-CENTER VR (VR10~13)
○
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Adjust white balance.
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Adjust white balance.
Degauss switch
○
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Adjust focusing.
○
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Adjust contrast and brightness.
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Adjust white balance.
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Internal adjustment
Adjustment is not correct.
to retry adjustment.
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Failure
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L1E-EA0229
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