Sony KV-HS29M90 Service Manual ▷ View online
– 13 –
KV-HS29M90/HS34M90/HS38M90
RM-997
RM-997
RM-997
CN902
CN1901
CN1980
CN5505
CN6503
CN6604
CN6603
CN6605
CN5403
CN5901
CN5808
CN5803
CN5802
CN5805
To
NS Coil
NS Coil
NS Coil
CN5801
CN5807
CN5806
CN5506
CN5801
CN5509
CN5011
CN6101
CN5009
CN5001
CN4302
CN4305
To C1 board
LCC Coil
Degauss coil (with LCC)
Degauss coil (with LCC)
CN1933
CN1934
CN1932
CN1602
CN5003
CN5002
CN1604
AC Cord
CN1601
CN1101
CN1100
TU3301
TU101
CN1603
CN1935
CN1402
< F2 board >
< MS2 board >
< D board >
< DC board >
< A board >
< E board >
< B4 board >
< H1 board >
< H2 board >
< J board >
< V board >
< C1 board >
SP (R)
SP (L)
CN1903
< E board >
< F1 board >
CN9101
CN9102
CN9002
CN9001
J9001
CN1161
CN101
CN402
CN1
163
CN1162
CN1160
CN1164
CN1293
CN1196
CN1190
<BM1C
board >
board >
1-12.
HARNESS RANNING
– 14 –
KV-HS29M90/HS34M90/HS38M90
RM-997
RM-997
RM-997
•
REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of
the picture tube and the anode cap to the metal chas-
sis, CRT shield or carbon paint on the CRT.
sis, CRT shield or carbon paint on the CRT.
•
REMOVING PROCEDURES
1
Do not damage the surface of anode-caps with sharp
shaped objects.
shaped objects.
2
Do not press the rubber too hard so as not to damage the
inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
3
Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the
rubber.
The shatter-hook terminal will stick out or damage the
rubber.
•
HOW TO HANDLE AN ANODE-CAP
b
c
a
a
1
Tern up one side of the rubber cap in the direction indicated
by the arrow
a
.
2
Using a thumb pull the rubber cap firmly in the direction
indicatid by the arrow
b
.
3
When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by terning up
the rubber capand pulling it up in the directin off the arrow
the rubber capand pulling it up in the directin off the arrow
c
.
Anode button
– 15 –
KV-HS29M90/HS34M90/HS38M90
RM-997
RM-997
RM-997
•
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
SECTION 2
SET-UP ADJUSTMENTS
................................................................................................................................................................................................................................
Fig. 2-1
Neck assy
Behind the G2 edge
Neck assy
G2
G1
G3
Behind the G2 edge
G2
G1
G3
Fig. 2-2
Fig. 2-3
Red
Blue
Green
Fig. 2-4
Purity control
corrects this area.
corrects this area.
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
corrects these areas.
a
b
c
d
b
c
d
a
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.
2-1. BEAM LANDING ADJUSTMENT
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig3-1.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with the purity
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 2-1 through 2-3.)
5. Move the deflection yoke forward and adjust so that the entire
screen is green. (See Figure 2-2.)
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 2-4.)
}
normal
<KV-HS29M90>
<KV-HS34/38M90>
– 16 –
KV-HS29M90/HS34M90/HS38M90
RM-997
RM-997
RM-997
2-2. CONVERGENCE ADJUSTMENT
Preparation :
•
Before starting this adjustment, adjust the focus, horizontal size
and vertical size.
•
Set the PICTURE and BRIGHTNESS 50%.
•
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 adjustments
while tracking.)
1
V. STAT
2
H. STAT VR
3
C1 Board
Center dot
R G B
R
G
B
H. STAT VR
V. STAT
Magnet
R
R
G
G
B
B
a
a
b
b
b
R
R
G
G
B
B
a
b
R
R
G
G
B
B
a
a
b
b
b
V.STAT
Purity
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