Panasonic TC-29P10N / TC-33P10N Service Manual ▷ View online
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Board [L]
6-pole convergence magnet
4-pole convergence magnet
Purity magnet
Purity magnet
Fig. 4
VRS magnet
2. Purity Adjustment
Purpose: Adjusting the red, blue, and green electron beams so that they hit
the specified fluorescent substance correctly.
Adjustment jig
Measuring location
Input signal
Color bar generator
TV screen (visual observation)
Crosshatch pattern
Red pattern (red single color signal)
Rainbow color pattern
Red pattern (red single color signal)
Rainbow color pattern
Red
1. Receive a crosshatch pattern and perform simple
adjustment of the convergence with the convergence
magnets.
magnets.
2. Receive a red pattern (red single color signal).
3. Slide the deflection yoke to the rear (towards board [L] and
3. Slide the deflection yoke to the rear (towards board [L] and
fix it provisionally when the red vertical bar appears.
4. Adjust the purity magnets so that the red vertical bar
comes to the center of the screen. (Fig. 4)
5. Loosen the provisionally fixed deflection yoke, move it to
the rear, so that the entire screen becomes red, and fix it
provisionally in that position.
Confirm the single-color condition of the entire screen for
blue and green.
provisionally in that position.
Confirm the single-color condition of the entire screen for
blue and green.
In case of uneven coloring, repeat the adjustments 3.
and 4. for the color with the uneven coloring.
and 4. for the color with the uneven coloring.
6. Receive a rainbow color bar, and use the TV reception
channel fine adjustment for a black-and-white image.
(Or use color pattern generator chroma signal cut.)
7. Confirm that there is no partial coloring for the entire
screen.
If there is partial coloring, remove the color unevenness by
moving the deflection yoke slightly in forward-backward
direction.
direction.
If the color unevenness can not be removed, repeat the
adjustments 1. to 4.
adjustments 1. to 4.
8. Tighten the screws fixing the deflection yoke and return
the TV fine adjustment to the original setting.
(A)
(B)
B
R
Fig. 5
Open
Rotate
(A)
(B)
3. Convergence Adjustment
Purpose: Adjustment of the image color deviation
Adjustment jig
Measuring location
Input signal
Color bar generator
TV screen (visual observation)
Crosshatch pattern
Red pattern (red single color signal)
Rainbow color pattern
Red pattern (red single color signal)
Rainbow color pattern
1. Receive a crosshatch pattern.
2. Gradually open the knobs of the 4-pole convergence
2. Gradually open the knobs of the 4-pole convergence
magnets and match the red and blue vertical lines at the
center of the screen.
Next, rotate the entire 4-pole magnets to match the red and
blue horizontal lines. (Fig. 5)
center of the screen.
Next, rotate the entire 4-pole magnets to match the red and
blue horizontal lines. (Fig. 5)
4-pole convergence magnets
Match red and blue
& !"
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G
R,B
R,B
(D)
G
(C)
Fig. 6
Open
Rotate
(C)
(D)
6-pole convergence magnets
Match red and blue to green
Fig. 7
XV
YHC
YV
Picture tube board (L)
Deflectioin yoke
Fig. 8
YHC
Fig. 9
YV
Fig. 10
XV
•
Caution items
Tilt adjustment with tilting the deflection yoke in up-down or left-right direction is not performed for this unit.
Please do nottry to do this. Perform YV adjustment for left-right tilt adjustment and YHC adjustment for up-down
adjustment.
As the XV adjustment core can crack easily, use a nonmetallic screwdriver for the adjustment.
Please do nottry to do this. Perform YV adjustment for left-right tilt adjustment and YHC adjustment for up-down
adjustment.
As the XV adjustment core can crack easily, use a nonmetallic screwdriver for the adjustment.
4. Adjust YHC, YV, and XV on the deflection yoke (Fig. 7) so that the
overall convergence becomes good. (Fig. 8, 9, 10)
When the convergence at the screen center is off, repeat the
adjustment from item 2.
3. Gradually open the knobs of the 6-pole convergence magnets and
match the red and blue vertical lines at the center of the screen.
(At this time, red and blue will move practically at the same time.)
Next, rotate the entire 6-pole magnets to match the red and blue
horizontal lines to green. (Fig. 6)
(At this time, red and blue will move practically at the same time.)
Next, rotate the entire 6-pole magnets to match the red and blue
horizontal lines to green. (Fig. 6)
5. After the adjustment, apply paint lock to the magnets.
6. When the position without deviation of the three colors has been determined, insert wedges between the deflection
6. When the position without deviation of the three colors has been determined, insert wedges between the deflection
yoke and the picture tube as shown (Fig. 11 below) to fix the deflection yoke.
1
3
2
4
Fig. 11
Wedge insertion positions
Insert the DY wedges
at the possible
at the possible
.
Wedge
Adhesive
Separator paper
' !"
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4:3 mode adjustment
H-V adjustment
•
For this adjustment, receive a crosshatch pattern, check whether adjustment is required or not, and then adjust.
This unit is equipped with a “16:9 mode” which identifies the input from S-video input and switches automatically to 16:9 screen
size for the full mode (squeeze signal) from a video camera or DVD. (Surface broadcasts remain “4:3”.)
16:9 mode also requires adjustment. Please perform adjustment on the following basis.
The adjustment procedure is the same as for 4:3 mode.
This unit is equipped with a “16:9 mode” which identifies the input from S-video input and switches automatically to 16:9 screen
size for the full mode (squeeze signal) from a video camera or DVD. (Surface broadcasts remain “4:3”.)
16:9 mode also requires adjustment. Please perform adjustment on the following basis.
The adjustment procedure is the same as for 4:3 mode.
Adjustment
4:3
16:9
1. V-HET (vertical amplitude)
[3F]
[3F]
2. V-LIN (vertical lilnearity)
2
3. V-SCR (vertical S-shape compensation)
2
4. V-POS (vertical position)
5. H-WID (horizontal amplitude)
6. H-POS (horizontal position)
1
7. H-PIN (vertical pin level)
Adjustment
Screen mode
4:3
16:9
8. H-KEY (vertical pin keystone distortion)
9. H-TPN (top pincushion)
2
3.
H-BPN (bottom pincushion)
10. V-EHT (vertical amplitude compensation)
11. H-EHT (horizontal amplitude compensation)
12. V-BKU (top vertical blanking)
13. V-BKD (bottom vertical blanking)
Screen mode
1 Set to the 4:3 adjustment value.
2 Confirm and adjust if required.
2 Confirm and adjust if required.
Adjust with 16:9.
•
Adjustment locations other than the remote control
Rear terminal board
Flyback transformer
Focus 2 (F2)
(Horizontal line adjustment)
(Horizontal line adjustment)
Focus 1 (F1)
(Vertical line adjustment)
(Vertical line adjustment)
Screen (SC)
S551
H. CENT
(horizontal center)
H. CENT
(horizontal center)
Coupler D4
R464
V. SIZE
(vertical amplitude)
V. SIZE
(vertical amplitude)
R712
H. SIZE. FB
(horizontal amplitude)
H. SIZE. FB
(horizontal amplitude)
Adjustment jig
Digital tester
Measuring location
Coupler D2, pin
+, pin
-
Adjustment location Rester completely black
Input signal
1. Amplitude compensation adjustment
1. Set the item video in the menu [
] (Function setting) to
[
] (OFF). (Completely black screen)
2. Connect the pin
of the coupler D2 with the side of the digital
tester, and connect the pin
with the side.
3. Turn R712 (amplitude FB) on the board [D] and adjust to
4.0V
0.1V.
4. Set the item video in the menu [
] (Function setting) to
[
] (ON).
!"
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Adjustment jig
Color pattern generator
Meassuring location TV screen (visual observation)
Adjustment location Remote control buttons [VOL +/-]
Input signal
Crosshatch pattern
A
B
A=B
A
B
A=B=5.5 lines
A=B=C
A
B
C
2. Vertical adjustment
Purpose: Adjustment of amplitude and linearity of the image in vertical direction.
Image adjustment
Standard
Image menu
Image 4 (dynamic)
Adjustment conditions
Vertical position adjustment
1. Set the item [H-V
1. Set the item [H-V
] (H-V adjustment) (omitted in the following) to
[V-HET].
2. Adjust with the remote control buttons [VOL +/-] to a narrower
vertical amplitude and confirm the vertical center of the image
(crosshatch pattern).
(crosshatch pattern).
3. Set to the item [V-POS].
4. Adjust with the remote control buttons [VOL +/-] so that the vertical
4. Adjust with the remote control buttons [VOL +/-] so that the vertical
center of the crosshatch pattern comes to the center of the screen.
Vertical amplitude adjustment
5. Set to the item [V-HET], set to "3F", and adjust by turning R464 so
5. Set to the item [V-HET], set to "3F", and adjust by turning R464 so
that the number of horizontal lines of the crosshatch pattern
becomes 5.5 lines at the top and at the bottom.
becomes 5.5 lines at the top and at the bottom.
Vertical linearity adjustment
6. Set to the item [V-LIN].
7. Adjust with the remote control buttons [VOL +/-] so that the interval
6. Set to the item [V-LIN].
7. Adjust with the remote control buttons [VOL +/-] so that the interval
between the lines of the upper half and the lower half of the
crosshatch pattern becomes uniform.
crosshatch pattern becomes uniform.
Vertical S-shape compensation adjustment
8.
8.
Set to the item [V-SCR].
9.
Adjust with the remote control buttons [VOL +/-] so that the grid
size of the crosshatch pattern becomes the same at the center and
at the top and the bottom.
at the top and the bottom.
10. Perform the adjustments 6. to 9. alternately until the line interval
between the straight lines becomes uniform.
•
Caution items
For adjustment of V-HET, keep "3F" fixed and adjust by turning
R464. However, when adjustment of the vertical amplitude with
R464 is not possible, adjust the value for [V-HET] in the range
from 3A to 44 (hexadecimal).
R464. However, when adjustment of the vertical amplitude with
R464 is not possible, adjust the value for [V-HET] in the range
from 3A to 44 (hexadecimal).
!"
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