JVC DT-V2000SU Service Manual page 45

DT-V2000SU
VERTICAL LINEARITY (Fv : 75 ~ 85Hz)
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Test equipment
Signal generator(Cross-hatch pattern)
Test points
Adjustment locations DM10(V LINEARITY1), DM11(V LINEARITY 2)
1. Input the VGA cross-hatch pattern signal of the 42kHz / 80Hz to the
input C terminal.
2. Confirm the vertical linearity about the screen top-bottom and center,
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and if illeagal, adjust the DM10 to correct the vertical linearity.
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3. Confirm the vertical linearity about the screen half of the upper and
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lower, and if illeagal, adjust the DM11 to correct the vertical linearity.
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I 1,
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TO STRAIGHT
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VERTICAL LINEARITY (Fv : 85 ~ 95Hz)
Test equipment Signal generator (Cross-hatch pattern)
Test points
Adjustment locations DM13(V LINEARITY1), DM14(V LINEARITY 2)
1. Input the VGA cross-hatch pattern signal of the 47kHz / 90Hz to the
input C terminal.
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2. Confirm the vertical linearity about the screen top-bottom and center,
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II
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and if illeagal, adjust the DM13 to correct the vertical linearity. I
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3. Confirm the vertical linearity about the screen half of the upper and I
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lower, and if illeagal, adjust the DM14 to correct the vertical linearity.
I
I
I I
I 1,
L
TO STRAIGHT
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