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Model
KV-TG21M70
Pages
55
Size
3.46 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-tg21m70.pdf
Date

Sony KV-TG21M70 Service Manual ▷ View online

– 9 –
KV-TG21M70/TG21M90/N
RM-952
I
Setting the timers
You can turn on and off your TV by using the   and   buttons respectively.
Setting the Wake Up timer
1
Press   until the desired period of time appears
on the screen.
The Wake Up timer starts immediately after you
have set it.
 2
Select the program number or video input you
want  to wake up to.
 3
Press \/1, or set the Sleep timer if you want the
TV to turn off automatically.
The   indicator on the TV lights up orange when
the TV goes into standby mode.
Setting the Sleep timer
Press   until the desired period of time appears
on the screen.
The Sleep timer starts immediately after you have
set it.
Notes
• You can also cancel the Wake Up and Sleep timers by turning off the TV’s main power.
• If no buttons or controls are pressed for more than two hours after the TV is turned on using
the Wake Up timer, the TV automatically goes into standby mode.
\
/1
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND 
MODE
 
FAVORITE
PROGR
2
WAKE UP TIMER:0H10M
WAKE UP TIMER:OFF
WAKE UP TIMER:12H00M
(After 10 minutes)
(No Wake Up timer)
(After 12 hours)
SLEEP TIMER:30M
SLEEP TIMER:60M
SLEEP TIMER:OFF
SLEEP TIMER:90M
(After 30 minutes)
(No Sleep timer) 
(After 60 minutes)
(After 90 minutes)
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.
Presetting channels automatically
from a specified program number
 1
Press SELECT until “AUTO PROGRAM” appears
on the screen.
 2
Press + or – once to enter the “AUTO
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.
4
Press + or – to start presetting channels
automatically.
Presetting channels manually
1
Press SELECT until “MANUAL PROGRAM”
appears on the screen.
 2
Press + or – once to enter the “MANUAL
PROGRAM” mode.
 3
Press PROGR +/– or the number buttons until
the desired program number appears on the
screen.
 4
Press + or – until the desired channel picture
appears on the screen.
 5
To preset other channels manually, repeat steps
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
Presetting channels (continued)
To change the TV system setting
If the picture or sound is abnormal when receiving programs through the 8 (antenna)
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  
  M
To change the color system setting
If the color is abnormal when receiving programs through the 8 (antenna) 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  
  SECAM  
  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 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.
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
You can customize the picture by selecting the picture mode 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.
Adjusting the picture setting
  
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.
PIC MODE
SELECT
+ or –
PICTURE
COLOR
BRIGHT
HUE
SHARP
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND 
MODE
 
FAVORITE
PROGR
2
(KV-TG21M70)
– 10 –
KV-TG21M70/TG21M90/N
RM-952
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-TG21M90 only.
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
K
Customizing the picture and sound
(KV-TG21M90/N)
You can customize the picture and sound by selecting the picture and sound
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-TG21M90 only
Press SOUND MODE to select the desired sound
mode.
Select
To
“9 DYNAMIC”
listen to dynamic and clear
sound that emphasizes the low
and high sound.
“9 DRAMA”
listen to sound that emphasizes
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
A/B
M
Enjoying stereo or bilingual
programs
You can enjoy stereo sound or bilingual programs of NICAM and A2 stereo
systems by using the A/B button.
When receiving a NICAM program
Broadcasting
On-screen display (Selected sound)
NICAM
stereo
(KV-TG21M90 only)
NICAM
bilingual
NICAM
monaural
When receiving an A2 program
Broadcasting
On-screen display (Selected sound)
A2
stereo
A2
bilingual
Notes
• If the sound is distorted when receiving a monaural program through the 8 (antenna)
terminal, press A/B repeatedly until “MONO” appears on the screen.  To cancel the monaural
sound setting, press A/B again until “AUTO” appears on the screen.
KV-TG21M90 only
• If the stereo sound is noisy when receiving a stereo program, select “MONO”.  The sound
becomes monaural, but the noise is reduced.
• Before receiving a NICAM stereo program in China, please check the NICAM broadcast
condition in your area.  When receiving a NICAM stereo program, the receiving conditions
might vary depending on area.  In addition, different strength of the NICAM broadcast signal
might affect the receiving quality.
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND 
MODE
 
FAVORITE
PROGR
2
NICAM
(Stereo sound)
MONO
(Regular sound)
t
t
NICAM MAIN
(Main sound)
NICAM SUB
(Sub sound)
MONO
(Regular sound)
t
t
t
NICAM MAIN
(Main sound)
MONO
(Regular sound)
t
t
MONO
(Regular sound)
STEREO
(Stereo sound)
t
t
MAIN
(Main sound)
SUB
(Sub sound)
t
t
(KV-TG21M90/N)
L
Adjusting the picture position
B
 KV-TG21M90/N only
If the picture is slanting, you can adjust the picture position using the
“PIC ROTATION” function until it is optimal.
1
Press SELECT repeatedly until “PIC ROTATION”
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
from the TV.
+ or –
SELECT
Slanting                             Optimal
Good morning
!
Good morning!
 
FAVORITE
– 11 –
KV
-TG21M70/TG21M90/N
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
 12 
KV
-TG21M70/TG21M90/N
RM-952
2-6-2. Replacement of Power Button
2-6-1. Replacement of Light Guide
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.
One screw
(+BVTP 3 
× 12)
1
Push to direction of arrow 
and remove
9
Demagnetic coil
!™
Two screws
(Tapping 5+
Crown Washer)
Tension
spring
4
Chassis assy
5 Deflection
yoke
3
CV board
2
Anode
cap
Coating earth assy
Picture tube
1 Cushion
!™
Two screws
(Tapping 5 +
Crown Washer) 
8
Holder DGC
6
PWB Bracket
7
CRT Support Block
7 CRT Support Block
Screw Location
Beznet Hook
2-6. REPLACEMENT OF PARTS
For replacements of light guide,unscrew them,
exchange with new parts and fix them with
screws respectively.
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