Sony KV-HA21P50 Service Manual ▷ View online
– 9 –
KV-HA21P50
RM-969
Number
buttons
SELECT
PROGR +/–
+ or –
PIC MODE
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND
MODE
PROGR
2
SPACE
SOUND
SOUND
J
Presetting channels
You can automatically preset up to 100 TV channels in numerical sequence
from program number 1, or manually preset desired channels and channels
that cannot be preset automatically.
from program number 1, or manually preset desired channels and channels
that cannot be preset automatically.
Presetting channels automatically
from a specified program number
from a specified program number
1
Press SELECT until “AUTO PROGRAM” appears
on the screen.
on the screen.
2
Press + or – once to enter the “AUTO
PROGRAM” mode.
PROGRAM” mode.
The on-screen display will start flashing.
3
Press PROGR +/– or the number buttons until
the desired program number appears on the
screen.
the desired program number appears on the
screen.
4
Press + or – to start presetting channels
automatically.
automatically.
Presetting channels manually
1
Press SELECT until “MANUAL PROGRAM”
appears on the screen.
appears on the screen.
2
Press + or – once to enter the “MANUAL
PROGRAM” mode.
PROGRAM” mode.
3
Press PROGR +/– or the number buttons until
the desired program number appears on the
screen.
the desired program number appears on the
screen.
4
Press + or – until the desired channel picture
appears on the screen.
appears on the screen.
5
To preset other channels manually, repeat steps
3 to 4.
3 to 4.
Presetting channels (continued)
To change the color system setting
If the color is abnormal when receiving programs through the 8 (antenna input)
terminal or the t (video input) terminal
terminal or the t (video input) terminal
(1) Press SELECT until “COLOR SYS” appears on the screen.
(2) Press + or – to select the appropriate color system until the color is optimal.
AUTO
PAL
NTSC3.58
NTSC4.43
To skip program numbers
(1) Press PROGR +/– or the number buttons until the unused or unwanted program
number appears on the screen.
(2) Press SELECT until “MANUAL PROGRAM” appears on the screen.
(3) Press + or – once to enter the “MANUAL PROGRAM” mode.
(4) Press PIC MODE to skip the unused or unwanted program number.
(5) Press SELECT to exit the “MANUAL PROGRAM” mode.
Note
• To restore the skipped program number again, preset the channel automatically or manually.
• To restore the skipped program number again, preset the channel automatically or manually.
To use the fine tuning function
The fine tuning (FINE) function may help to reduce the following problems:
double images and lines moving across the TV screen.
double images and lines moving across the TV screen.
You can use the fine tuning function as below:
(1) Select the program number you want to adjust.
(2) Press SELECT until “MANUAL PROGRAM” appears on the screen.
(3) Press + or – once to enter the “MANUAL PROGRAM” mode.
(4) Press to display “FINE” on the screen.
(5) Press + or – continuously until the above problems are minimized.
The + or – icon on the screen flashes while tuning.
(6) Press SELECT to exit the “MANUAL PROGRAM” mode.
K
Customizing the picture and sound
You can customize the picture and sound by selecting the picture and sound
modes or by adjusting its settings.
modes or by adjusting its settings.
You can change the sound effect by selecting the space sound mode.
Selecting the picture mode
Press PIC MODE to select the desired picture
mode.
mode.
Select
To
“DYNAMIC”
view high contrast pictures.
“STANDARD”
view normal contrast pictures.
“SOFT”
view mild pictures.
Selecting the sound mode
Press SOUND MODE to select the desired sound
mode.
mode.
Select
To
“9 DYNAMIC”
listen to dynamic and clear
sound that emphasizes the low
and high sound.
sound that emphasizes the low
and high sound.
“9 DRAMA”
listen to sound that emphasizes
vocals and background music.
vocals and background music.
“9 SOFT”
listen to soft sound.
Adjusting the picture and sound settings
1
Press SELECT until the desired setting appears.
Each time you press SELECT, the setting item will change as follows:
2
Press + or – to adjust the item.
3
To adjust other items, repeat steps 1 to 2.
Notes
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
SOUND
MODE
PIC MODE
SELECT
+ or –
PICTURE
COLOR
BRIGHT
HUE
BALANCE
TREBLE
BASS
SHARP
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND
MODE
PROGR
2
SPACE
SOUND
SOUND
SPACE
SOUND
Selecting the space sound mode
Press SPACE SOUND.
Select
To
“ON”
listen to monaural sound with a stereo-like effect.
“OFF”
turn off space sound mode.
Note
• You can also turn space sound on or off using the SELECT and + or – buttons.
• You can also turn space sound on or off using the SELECT and + or – buttons.
Customizing the picture and sound (continued)
L
Adjusting the picture position
If the picture is slanting, you can adjust the picture position using the
“PIC ROTATION” function until it is optimal.
“PIC ROTATION” function until it is optimal.
1
Press SELECT repeatedly until “PIC ROTATION”
appears on the screen.
appears on the screen.
2
Press + or – to adjust the picture position.
The
+
or
icon on the screen flashes while
adjusting.
Note
• To reduce the slanting picture, keep external speakers or other electrical equipment away
• To reduce the slanting picture, keep external speakers or other electrical equipment away
from the TV.
+ or –
SELECT
Slanting Optimal
SPACE
SOUND
SOUND
Good morning
!
Good morning!
– 10 –
KV
-HA21P50
-HA21P50
RM-969
2-6. REPLACEMENT OF PARTS
For replacements of light guide,unscrew them,
exchange with new parts and fix them with
screws respectively.
exchange with new parts and fix them with
screws respectively.
2-6-2. Replacement of Power Button
2-6-1. Replacement of Light Guide
2-5. TERMINAL BRACKET REMOVAL
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
2-2. SPEAKER REMOVAL
2-3. CHASSIS ASSY REMOVAL
2-4. SERVICE POSITION
Caution:
Do not take out CRT support block while TV set in
standing position.
Note:
Undress necessary wires that creates tension while
placing the chassis into Service Position.
1 Eight screws
(+BVTP 4
(+BVTP 4
× 16)
1 Two screws
(+BVTP 4
(+BVTP 4
× 16)
2 Rear cover
2
Two screws washer head
1
Speaker
Bracket
Speaker
(+P 4
× 16)
2
Two screws
washer head
(+P 4
× 16)
A board
Terminal board bracket
One screw
(+BVTP 4
(+BVTP 4
× 16)
One screw
(+BVTP 3
(+BVTP 3
× 12)
1 Push the claw to direction
of arrow and remove
of arrow and remove
2 Spring compression
3 Power Button
–
11
–
KV
-HA21P50
-HA21P50
RM-969
2-7. PICTURE TUBE REMOVAL
Note:
•
Please make sure the TV set is not in standing position before removing necessary
CRT support located on bottom right and left.
CRT support located on bottom right and left.
Demagnetic coil
4
!¢
!£
Two screws
(washer head)
(+P 4
(washer head)
(+P 4
× 16)
6
Two screws
(Tapping 7+
Crown Washer)
(Tapping 7+
Crown Washer)
5 Speaker
(15
× 6.5cm)
Speaker
(15
(15
× 6.5cm)
9 Tension
spring
!™
Chassis assy
!º Deflection
yoke
!¡
CV board
8
Anode cap
Coating earth assy
!§
Picture tube
1 Cushion
7Two screws
(Tapping 7+
Crown Washer)
Crown Washer)
2 Two screws
(washer head)
(+P 4
(+P 4
× 16)
Holder DGC
Cushion
Screw Location
2 screws
(+BVTP 4
2 screws
(+BVTP 4
× 16)
Beznet Hook
PWB Bracket
3
!∞
CRT Support Block
CRT Support Block
•REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of the picture tube and
the anode cap to the metal chassis, CRT shield or carbon paint on the
CRT.
CRT.
•REMOVING PROCEDURES
1 Turn up one side of the rubber cap in the direction indicated by the arrow a.
2 Using a thumb pull up the rubber cap firmly in the direction indicated 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 turning up the rubber cap and pulling it up in the direction of the
arrow
arrow
c.
• HOW TO HANDLE AN ANODE-CAP
1 Do not damage the surface of anode-caps with sharp shaped objects.
2 Do not press the rubber too hard so as not to damage the inside of anode-cap.
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.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the rubber.
a
a
b
b
c
Anode Button
– 12 –
KV-HA21P50
RM-969
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. Pattern Generator
2. Degausser
3. Oscilloscope
SECTION 3
SET-UP ADJUSTMENTS
................................................................................................................................................................................................................................
normal
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.
set's picture tube, face it east or west.
Switch on the set's power and degauss with the degausser.
3-1. BEAM LANDING
1. Input a white signal with the pattern generator.
Contrast
Brightness
Brightness
2. Set the pattern generator raster signal to a green raster.
3. Move the deflection yoke to the rear and adjust with the
3. 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 3-1 through 3-4.)
and the red take up equally sized areas on each side.
(See Figures 3-1 through 3-4.)
4. Move the deflection yoke forward and adjust so that the
entire screen is green. (See Figure 3-1.)
5. Switch the raster signal to blue, then to red and verify the
condition.
6. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
7. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 3-4.)
(See Figure 3-4.)
}
Fig. 3-1
Fig. 3-4
Fig. 3-3
Fig. 3-2
Purity control
Red
Blue
Green
Deflection yoke positioning
corrects these areas.
Purity control corrects
this area.
Disk magnets or rotatable
disk magnets correct
these areas (a-d).
disk magnets correct
these areas (a-d).
b
c
a
d
b
a
c
d
Click on the first or last page to see other KV-HA21P50 service manuals if exist.