Sony KV-TG21M20 Service Manual ▷ View online
– 9 –
KV-TG21M20
RM-952
Presetting channels (continued)
To change the TV system setting
If the picture or sound is abnormal when receiving programs through the 8 (antenna
input) terminal
input) terminal
(1) Press SELECT until “TV SYS” appears on the screen.
(2) Press + or – to select the appropriate TV system until the picture or sound quality
is optimal.
B/G
I
D/K
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.
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.
Number
buttons
SELECT
PROGR +/–
+ or –
PIC MODE
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
2
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
• “BASS”, “TREBLE” and “BALANCE” can be adjusted for KV-TG21M20 only.
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
• “BASS”, “TREBLE” and “BALANCE” can be adjusted for KV-TG21M20 only.
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
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.
Selecting the picture mode
Press PIC MODE to select the desired picture mode.
Select
To
“DYNAMIC”
view high contrast pictures.
“STANDARD”
view normal contrast pictures.
“SOFT”
view mild pictures.
Selecting the sound mode
B
KV-TG21M20 only
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.
SOUND
MODE
PIC MODE
SELECT
+ or –
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
2
PICTURE
COLOR
BRIGHT
HUE
BALANCE
TREBLE
BASS
SHARP
– 10 –
KV
-TG21M20
-TG21M20
RM-952
1 Eight screws
(+BVTP 4
× 16)
1 Rear Cover
2-5. TERMINAL BRACKET REMOVAL
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
2-2. SPEAKER REMOVAL
2-3. CHASSIS ASSY REMOVAL
1 Four screws
(BVTP 3
× 12)
CRT SUPPORT BLOCK
1 Four screws
(BVTP 3
× 12)
Push claw
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 One screw
(+BVTP 4
× 16)
2 Terminal Bracket
–
11
–
KV
-TG21M20
-TG21M20
RM-952
2-6-2. Replacement of Power Button
2-6-1. Replacement of Light Guide
2-7. PICTURE TUBE REMOVAL
Note:
•
The picture tube is upside down, and the position for the anode cap and tension
springs are changed accordingly.
springs are changed accordingly.
•
Please remove necessary CRT support located on top left, top right, bottom left,
bottom right, prior to removing the CRT.
bottom right, prior to removing the CRT.
One screw
(+BVTP 3
(+BVTP 3
× 12)
1
Push to direction of arrow
and remove
and remove
9
Demagnetic coil
!™
Two screws
(Tapping 5+
Crown Washer)
(Tapping 5+
Crown Washer)
Tension
spring
spring
4
Chassis assy
5 Deflection
yoke
3
CV board
2
Anode
cap
cap
!¡
Coating earth assy
!£
Picture tube
1 Cushion
!™
Two screws
(Tapping 5 +
Crown Washer)
(Tapping 5 +
Crown Washer)
8
Holder DGC
6
PWB Bracket
7
CRT Support Block
7 CRT Support Block
Screw Location
Beznet Hook
!º
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.
–
12
–
KV
-TG21M20
-TG21M20
RM-952
•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
Anode button
c
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