DOWNLOAD Sony KV-DX29K90B Service Manual ↓ Size: 9.27 MB | Pages: 111 in PDF or view online for FREE

Model
KV-DX29K90B
Pages
111
Size
9.27 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-dx29k90b.pdf
Date

Sony KV-DX29K90B Service Manual ▷ View online

– 45 –
KV-DX29K9H/KV-DX29K9H/B/DX29K90B/DX29K90L
RM-1006
RM-1006
RM-1006
RM-1006
TP
No.
Name
Standards
0
PD
*1
1
2
MODL
*2
Standards *1
UV
Video 1
Video 2
Video 3
0
PD
1111
Video 4
D Component 1
D Component 2
AV Multi RGB
AV Multi YUV
0
PD
11111
Standards *2
X
No.
X
No.
X
2
MODL
03140
No.
Name
Remarks
Standards
Standards
Standards
No.
Name
No.
Name
OP
No.
Name
Standards
0
ASHT
1
1
EDFL
0
2
RSVP
1
3
DLY1
24
4
DLY2
20
5
DLY3
7
6
DLY4
0
7
BLK1
20
8
BLK2
40
9
BLK3
20
10
AGCH
3
11
AGCL
14
12
AFTH
149
13
AFTL
87
14
AFDL
8
15
GRDL
0
16
RSGR
0
17
TUON
1
18
NPON
0
19
DHMU
0
20
PCMX
53
21
BRMX
47
22
AVMF
9
23
BSSV
1
24
BTUO
10
25
BDLY
2
26
BTBT
0
27
NBRT
21
28
XEOF
0
29
LBER
20
Remarks
– 46 –
KV-DX29K9H/KV-DX29K9H/B/DX29K90B/DX29K90L
RM-1006
RM-1006
RM-1006
RM-1006
SECTION 4
SET-UP ADJUSTMENTS
The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
These adjustments should be performed with rated power
supply voltage unless otherwise noted.
Controls and switches should be set as follows unless otherwise
noted:
PICTURE control ........................................................... normal
BRIGHTNESS control................................................... normal
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. White Balance
Note : Test Equipment Required.
1. Color-bar/Pattern Generator
2. Degausser
3. Oscilloscope
...................................................................................................................................................................
Preparation :
In order to reduce the influence of geomagnetism on the set’s
picture tube, face it east or west.
Switch on the set’s power and degauss with the degausser.
4-1. BEAM LANDING
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig4-1.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with the pu-
rity control so that the green is at the center and the blue and
the red take up equally sized areas on each side.
(See Figures 4-1 through 4-3.)
5. Move the deflection yoke forward and adjust so that the
entire screen is green. (See Figure 4-2.)
6. Switch the raster signal to blue, then to green and verify the
condition.
7. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
8. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 4-4.)
normal
}
Neck assy
G2
G1
G3
Behind the G2 edge
Fig. 4-1
Fig. 4-3
Red
Blue
Green
Fig. 4-2
Fig. 4-4
Purity control
corrects this area.
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
a
b
b
c
c
d
d
a
– 47 –
KV-DX29K9H/KV-DX29K9H/B/DX29K90B/DX29K90L
RM-1006
RM-1006
RM-1006
RM-1006
4-2. CONVERGENCE ADJUSTMENT
Preparation :
Before starting this adjustment, adjust the focus, horizontal
size and vertical size.
Set the Picture Mode to “STANDARD”.
Cross hatch / Dot pattern.
(1) Horizontal and Vertical Static Convergence
1. (Moving horizontally), adjust the H.STAT control so that the
red, green and blue dots are on top of each other at the center
of the screen.
2. (Moving vertically), adjust the V.STAT magnet so that the
red, green and blue dots are on top of each other at the center
of the screen.
3. If the H.STAT variable resistor cannot bring the red, green
and blue dots together at the center of the screen, adjust the
horizontal convergence with the H.STAT variable resistor and
the V.STAT magnet in the manner given below.
(In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other, so be sure to perform adjust-
ments while tracking.)
Center dot
R    G    B
R
G
B
H. STAT VR
V. STAT
Magnet
RV9001
H. STAT
Y magnet
C Board
BMC (Hexapole)
1
V.   STAT
2
H. STAT VR
R
R
G
G
B
B
a
a
b
b
b
R
R
G
G
B
B
a
b
3
R
R
G
G
B
B
a
a
b
b
b
V.STAT
Purity
BMC (hexapole)
– 48 –
KV-DX29K9H/KV-DX29K9H/B/DX29K90B/DX29K90L
RM-1006
RM-1006
RM-1006
RM-1006
1. Receive the cross-hatch signal and adjust [PICTURE] to
[MIN] and [BRIGHTNESS] to [STANDARD] .
2.  Adjust the Y separation axis correction magnet on the neck
assembly so that the horizontal lines at the top and bottom of
the screen are straight.
Note
1. The Red and Blue magnets should be equally far from the
horizontal center line.
2. Do not separate the Red and Blue magnets too far. (Less than
8 mm)
(2) Dynamic Convergence Adjustment
Preparation:
Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence
Set the PICTURE and BRIGHTNESS to normal.
1. Adjust TLH. (TLH correction piece)
1
 Receive the dot/hatch pattern signal and adjust picture qual-
ity by the menu.
2
 Correct horizontal mis-convergence of red and blue of both
sides on the X axis.
When red is outside insert BMC magnet to right side (THL+)
views from DY neck. And when blue is outside, insert it to
left side (THL–) and take both sides.
4
 BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned,
then use the BMC magnet to adjust in the manner described
below.
5
 Y separation axis correction magnet adjustment.
R G
B
R
G
B
R
G B
R
B
R
G
G
G
B
R
B
Blue
Red
VM board
Blue
Red
VM board
Neck assy
Neck assy
R
(B)
B
(R)
B
(R)
TLH +
TLH -
R
(B)
2. Adjust XCV core.
To able to become balance of XCV on the X axis well.
3. Adjust V-TILT.
Correct the vertical mis-convergence of red and blue of verti-
cally sides on the Y axis.
4. Adjust YCH.
Adjust horizontal mis-convergence of red and blue of verti-
cally sides on the Y axis. Mentioned above steps 2 to 4 are
adjusting respectively perform minuteness tracking.
XCV
C1 board
BMC magnet
RV9001
V board
TLV1
YCH
TLV2
Page of 111
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