Panasonic TC-21P50R Service Manual ▷ View online
- 13 -
VRS Adjustment
VRS Adjustment
1. Receive a colour bar signal, and operate the TV set
more than 15 minutes.
2. Set the 2 pole (purity magnets), the VRS magnets, 4
pole and 6 pole magnets (Static convergence magnets)
so that they are uncompensated.
so that they are uncompensated.
3. Push the Deflection Yoke to the front and temporarily set
so that there is no slant in the horizontal direction.
4. Adjust by opening the VRS magnets equally above and
below so that the A point, B point and C point horizontal
lines are parallel with the center line of the pattern.
lines are parallel with the center line of the pattern.
5. Adjust Purity and Convergence adjustment, after VRS
adjustment.
Simplified VRS Adjustment Method.
1. Adjust in the same manner as previous item1. and 2.
above. Then adjust by opening the VRS magnets
equally above and below so that the horizontal lines are
aligned with the vertical center marks set horizontally to
the left and right.
equally above and below so that the horizontal lines are
aligned with the vertical center marks set horizontally to
the left and right.
6 pole
convergence
R/B with G
convergence
R/B with G
4 pole
convergence
R with G
convergence
R with G
VRS magnets
2 pole(purity)
Setting of CY magnets
Opening for VRS magnets
Center mark
on the CRT
Center mark
on the CRT
Center line
A
B
C
Center line
Good adj.
Not good Adj.
- 14 -
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Purity Magnet
Colour Purity
Green
Green
Green Field
Uniform green
62.0±1 mm
20.0±1mm
25.3±1mm
CY Screw
CY
DY
CRT
Vertical
convergence
Red & Blue
Horizontal
convergence
Red & Blue
Slide magnetic tabs toward or
away from each other.
away from each other.
Rotate both magnetic rings together
R-B Static
Convergence Magnet
Convergence Magnet
R-B Static
Convergence Magnet
Convergence Magnet
R
B
R
B
Vertical
BGR
BG
R
Horizontal
R
G
B
G
B
B
G
R
G
R
B
G
R
R
GB
R
G
B
RGB
Before Colour Purity, Convergence and White Balance adjustments are attempted,
V. Center, V. Height, H. Width, H. Center and Focus adjustments must be completed.
V. Center, V. Height, H. Width, H. Center and Focus adjustments must be completed.
- 15 -
DY Fixing
1.
Wedge (1) shown in should be fixed within a range of
1. Wedge (1) shown in should be fixed within a range of
120° to the left of the vertical line as shown.
2. After inserting wedge (1), insert wedges (2) and (3).
The wedges should be set 120° apart from each other.
3. Be certain that the three wedges are firmly fixed and the
Deflection Yoke is tightly clamped in place. Otherwise
the Deflection Yoke may shift its position and cause a
loss of convergence and purity
the Deflection Yoke may shift its position and cause a
loss of convergence and purity
120˚
120˚
120˚
Wedge (2)
Wedge (1)
Wedge (3)
Item / Preparation
Adjustment Procedure
CUT OFF
1. Connect oscilloscope probe to TPL7.
2. Receive the window pattern.
3. Picture menu : DYNAMIC NORMAL.
3. Picture menu : DYNAMIC NORMAL.
AI : OFF
4. Screen VR : Min
5. Set the data of RGB CUT OFF/DRIVE and
5. Set the data of RGB CUT OFF/DRIVE and
SUB BRIGHT.
6. Set mute mode and stop vertical deflection.
1. Adjust Sub-BRIGHT, so that the voltage of TPL7 is [160]V.
2. Adjust screen VR so that any color line is slighty lighted.
2. Adjust screen VR so that any color line is slighty lighted.
(After this adjustment, screen VR should not be turned except for *2)
3. Adjust any color other than the color that appears first so that horizontal
line is white.
(*2 at that time, first come line go out, turn the VR and finally fix the VR
that white line is slighty lihgted.)
(*2 at that time, first come line go out, turn the VR and finally fix the VR
that white line is slighty lihgted.)
4. Set mute mode release.
WHITE BALANCE
1. Set the Helmhortz device to local magnetic
field.
2. Aging should have been performed over
30 minutes.
3. Receive the white balance pattern.
(this signal must have burst signal 0)
4. Picture menu : DYNAMIC NORMAL.
AI : OFF
5. Degauss the CRT face.
6. Fix the white balance meter receiver unit
6. Fix the white balance meter receiver unit
to CRT face.
*Take care that light does not enter from
outside.
*CRT cut off adjustment is completed.
*If indication of white balance meter at
High Light adjustment does not get to
80
*Take care that light does not enter from
outside.
*CRT cut off adjustment is completed.
*If indication of white balance meter at
High Light adjustment does not get to
80
m
A, connect short jumper to TBT11 &
3.
1. Adjustment of Low Light.
1. Adjustment SUB BRIGHT, so that G High Light is 35
m
A.
2. Adjustment R-CUT OFF, so that R Low is -14
m
A.
3. Adjustment B-CUT OFF, so that B Low Light is 0
m
A.
2. Adjustment of High Light.
1. Adjust SUB BRIGHT, so that G High Light is 80
m
A.
2. Adjust R-DRIVE, so that R High Light is -2
m
A.
2. Adjust B-DRIVE, so that B High Light is 6
m
A.
0V
160V
- 16 -
Pink
Sky Blue
Red
White
Pink
Sky Blue
Red
White
-
+
TSXA154
TZWXJ02ND2P
SP Lead
AC Cord
To GND
G10
A41
G5
G6
A5
L1
L3
L11
L2
To CY
X23
Clamper
DY
Within 30mm
TMM7468-1
To DY
0~20mm
CRT Corner
Clamper
Clamper
D810
A6
D813
Without 30mm
TMM7468-1 (2)
-
+
45˚
TMM7468-1
TMME015
or TMM6463-1
or TMM6463-1
2
13
1
12
11
9
6
7
8
3
10
5
4
- +
- +
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