Panasonic CT-32HX40CB, Руководство по обслуживанию

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Final Convergence Procedure
Note: Vertical size and focus adjustments
must be completed prior to performing the
convergence adjustment. Connect a dot pattern
generator to the Receiver. The Brightness level
should not be higher than necessary to obtain a
clear pattern.
Converge the red and the blue dots at the center of the
screen by rotating the R&B pole Static Convergence
Magnets.
Align the converged red/blue dots with the green dots
at the center of the screen by rotating the R&B&G pole
Static Convergence Magnets. Melt wax with soldering
iron to reseal the magnets.
Slightly tilt vertically and horizontally (do not rotate) the
deflection yoke to obtain a good overall convergence.
If convergence is not reached at the edges, insert
permalloy in the DY corners to achieve proper
convergence (See “Permalloy Convergence Corrector
Strip (Part No. 0FMK014ZZ)” on page 17.) Recheck for
purity and readjust if necessary.
After vertical adjustment of the yoke, insert wedge at 11
o’clock position, then make the horizontal
tilt adjustment.
Secure the deflection yoke by inserting four side
wedges.
Apply adhesive between tab (thin portion) of wedge
and CRT and place tape over the tab to secure to the
CRT.
Dynamic Corvergence Adjustment
Use this for a precisely overall convergence adjust at
the edges.
DY(Y
HC
, Y
V
, X
V
) Adjustment
Y
V
Adjustment (VR1 for Horizontal dynamic
convergence)
1.
Apply a crosshatch pattern.
2. Adjust contrast and brightness customer controls
to obtain a correct picture.
3. With a driver adjust VR1 (located in deflection yoke
board Fig. 19) to obtain a proper corvergence at
top and bottom of the screen (See Fig. 13)
Y
H
Adjustment (VR2 for Vertical dynamic
convergence)
1.
Apply a crosshatch pattern.
2. Adjust contrast and brightness customer controls
to obtain a correct picture.
3. With a driver Adjust VR2 (located in deflection yoke
board Fig. 19) to obtain a proper corvergence at
left and right side of the screen. (See Fig. 14)
X
V
Adjustment(precise adjustment)
1. Apply a crosshatch pattern.
2. Adjust contrast and brightness customer controls
to obtain a correct picture.
3. With a driver adjust the coil located in deflection
yoke board to obtain a proper convergence
horizontally.
Note: Apply a red pattern and confirm purity,
if purity is poor, repeat purity
adjustments.
G
B&R
G
B&R
G
B&R
G
B&R
Figure 13. VR1 Adjustment (Y
V
)
G B&R G B&R
G B&R G B&R
Figure 14. VR2 Adjustment (Y
H
)
G
B&R
G
B&R
G
B&R
G
B&R
Figure 15. X
V
Adjustment