KV-21FT250
KV-21FT250
22
Convergence Rough Adjustment
Before performing this adjustment, perform Horizontal and Vertical Static
Convergence Adjustment.
Input cross hatch pattern.
a)
TLH
Adjust the horizontal convergence of red and blue dots by inserting
TLH Correction Plate to the DY pocket (left or right).
b)
YCH
Adjust YCH to balance Y axis.
c)
TLV
Adjust YCh to balance Y axis.
d)
XCV
Adjust XCV to balance X-axis.
TLV
R B
YCH
R
B
XCV
B
R
TLH
B
R
YCH
DY pocket
DY pocket
XCV
TLV
XCV
TLV
TLH Plate
ON DY:
Screen Corner Convergence Adjustment
Affi x a Piece A (90), Convergence Correct/Permaloy Assy Correction to
the misconverged areas.
b
a
c
d
a-d : screen-corner
misconvergence
a1
b1
c1
d1
a1~d1:Piece A (90), Convergence Correct
or
Permaloy Assy Correction
3-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before White Balance
adjustment. (See 4-4. White Balance Adjustment)
1. Receive digital monoscope pattern.
2. Set Picture Mode to “DYNAMIC”.
3. Adjust focus VR to obtain a just focus at the center of the screen.
4. Change the receiving signal to white pattern and blue back.
5. Confi rm magenta ring is not noticeable. In case magenta ring is
obvious, then adjust FOCUS VR to balance magenta ring and
FOCUS.
SCREEN
FOCUS
