DOWNLOAD Panasonic TC-29P10N / TC-33P10N Service Manual ↓ Size: 5.33 MB | Pages: 45 in PDF or view online for FREE

Model
TC-29P10N TC-33P10N
Pages
45
Size
5.33 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LX1
File
tc-29p10n-tc-33p10n.pdf
Date

Panasonic TC-29P10N / TC-33P10N Service Manual ▷ View online

- 17 -
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
1. Receive a crosshatch pattern and perform simple 
adjustment of the convergence with the convergence 
magnets.
2.  Receive a red pattern (red single color signal).
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.
In case of uneven coloring, repeat the adjustments 3. 
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.
 
If the color unevenness can not be removed, repeat the 
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
1.  Receive a crosshatch pattern.
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)
4-pole convergence magnets
Match red and blue
& !"
- 18 -
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.
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)
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 
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 
.
Wedge
Adhesive
Separator paper
' !"
- 19 -
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.
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.
 Adjust with 16:9.
Adjustment locations other than the remote control
Rear terminal board
Flyback transformer
Focus 2 (F2)
(Horizontal line adjustment)
Focus 1 (F1)
(Vertical line adjustment)
Screen (SC)
S551
H. CENT
(horizontal center)
Coupler D4
R464
V. SIZE
(vertical amplitude)
R712
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).
 !"
- 20 -
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 
] (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).
3. Set to the item [V-POS].
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 
that the number of horizontal lines of the crosshatch pattern 
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 
between the lines of the upper half and the lower half of the 
crosshatch pattern becomes uniform.
Vertical S-shape compensation adjustment
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.
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).
 !"
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