Sony KV-J25MN1AK Service Manual ▷ View online
– 9 –
KV
-J25MN1AK
-J25MN1AK
RM-883
Operations
12
Using the Child Lock
feature
feature
Watching the picture
in wide mode
in wide mode
You can prevent a child from watching certain program
positions by using the buttons on the remote
commander.
positions by using the buttons on the remote
commander.
1
Select the TV program you want to lock.
2
Press SELECT until “CHILD LOCK” appears
on the screen.
on the screen.
3
Press + or – until “LOCKED” appears on the
screen.
screen.
Notes
•
To unlock the program position, repeat steps 1 to 3 as above
until “LOCKED” disappears from the screen.
until “LOCKED” disappears from the screen.
•
To prevent your child from unlocking the program position,
keep the remote commander away from your child.
keep the remote commander away from your child.
÷
0
+ or –
SELECT
SELECT
CHILD LOCK
LOCKED
You can adjust the display mode accordingly to fit the
programs to your TV screen size.
programs to your TV screen size.
Press WIDE/V-ZOOM repeatedly until the wide
display mode you want appears on the screen.
display mode you want appears on the screen.
TV
WIDE/
V-ZOOM
G o o d - b y e , J a n e
G o o d - b y e .
G o o d - b y e .
G o o d - b y e , J a n e
G o o d - b y e .
G o o d - b y e .
WIDE
V-ZOOM
NORMAL
Normal display
mode
mode
“WIDE” mode
“V-ZOOM” mode
13
Operations
Adjusting the
picture
picture
Adjusting the sound and picture settings
1
Press SELECT until the item you want to
adjust appears.
adjust appears.
Each time you press SELECT, the screen changes
as follows:
as follows:
2
Press + or – to adjust the item.
3
To adjust other items, repeat steps 1 and 2.
Notes
•
You can also use SELECT and VOLUME +/– on the TV to
adjust the sound and picture settings.
adjust the sound and picture settings.
•
SURROUND is only applicable to a stereo signal. When
receiving a monaural signal, please turn off SURROUND for
the best sound.
receiving a monaural signal, please turn off SURROUND for
the best sound.
If the picture color is abnormal when receiving
programs through the ˘ (antenna) terminal
programs through the ˘ (antenna) terminal
Change the “TV SYSTEM”or “COL. SYS” setting or adjust the
“COLOR” level in the on-screen display until the color becomes
normal.
“COLOR” level in the on-screen display until the color becomes
normal.
If the picture color is abnormal when receiving
programs through the video input jack
programs through the video input jack
Change the “COL. SYS” setting or adjust the “COLOR” level in
the on-screen display until the color becomes normal.
the on-screen display until the color becomes normal.
Note
•
Normally set “COL. SYS” to “AUTO”.
If the sound is distorted or noisy when receiving
programs through the ˘ (antenna) terminal
programs through the ˘ (antenna) terminal
Change the “TV SYSTEM” setting in the on-screen display until
the sound becomes clear.
the sound becomes clear.
Adjusting the sound
and picture
and picture
÷
0
SOUND
MODE
SELECT
PIC MODE
PIC MODE
Selecting the sound mode
Press SOUND MODE until the mode you want
appears.
appears.
Each time you press SOUND MODE, the screen
changes as follows:
changes as follows:
Selecting the picture mode
Press PIC MODE until the mode you want
appears.
appears.
Each time you press PIC MODE, the screen changes as
follows:
follows:
Note
•
If you change the picture and sound mode after the following
adjustments, the adjustment changes in accordance with the
picture and sound mode.
adjustments, the adjustment changes in accordance with the
picture and sound mode.
≥
MUSIC
≥
DRAMA
≥
SPORTS
≥
SOFT
Emphasize
low and high
sound effect
low and high
sound effect
Emphasize
huge
audience
atmosphere
huge
audience
atmosphere
Emphasize
vocals and
background
music
vocals and
background
music
Emphasize
soft sound
soft sound
Front of TV
SOUND
MODE
High contrast
picture
picture
DYNAMIC
STANDARD
SOFT
Normal
picture
picture
PIC MODE
Soft picture
PICTURE
COLOR
BRIGHT
HUE
SHARPNESS
BASS
BALANCE
SURROUND
TREBLE
SELECT
+ or –
(Operative for
NTSC signal only)
NTSC signal only)
MANUAL
PROGR
COLOR
SYSTEM
R
SELECT
TV
SYSTEM
AUTO
PROGR
– 10 –
KV
-J25MN1AK
-J25MN1AK
RM-883
Operations
14
Selecting a stereo or
bilingual program
bilingual program
Press A/B/ENLARGE repeatedly until you
receive the sound you want.
The on-screen display changes corresponding to the
selected sound and the WAKE UP/STEREO indicator
also lights up.
receive the sound you want.
The on-screen display changes corresponding to the
selected sound and the WAKE UP/STEREO indicator
also lights up.
When receiving a NICAM program
Broadcasting
NICAM stereo
NICAM bilingual
NICAM monaural
When receiving an A2 (German) program
Broadcasting
A2 (German)
stereo
stereo
A2 (German)
bilingual
bilingual
Notes
•
If the signal is very weak, the sound becomes monaural
automatically.
automatically.
•
If the stereo sound is noisy when receiving a NICAM program,
select “MONO”. The sound becomes monaural, however, the
noise will be reduced.
select “MONO”. The sound becomes monaural, however, the
noise will be reduced.
If the sound is distorted or noisy when
receiving a monaural program through the
receiving a monaural program through the
˘
(antenna) terminal
Press A/B/ENLARGE repeatedly until “MONO”
appears on the screen.
Press A/B/ENLARGE repeatedly until “MONO”
appears on the screen.
To cancel the monaural sound setting, press
A/B/ENLARGE again until “AUTO” appears on the
screen.
A/B/ENLARGE again until “AUTO” appears on the
screen.
Notes
•
The “MONO” or “AUTO” setting is memorized for each
program position.
program position.
•
You cannot receive stereo signal when the TV is in the
“MONO” setting.
“MONO” setting.
z MONO
z AUTO
A/B
ENLARGE
On-screen display
(Selected sound)
NICAM
z(Stereo sound)
MONO
z (Regular sound)
NICAM
z
MAIN
(Main sound)
NICAM
z
SUB
(Sub sound)
NICAM
z
MAIN
(Main sound)
MONO
z (Regular sound)
MONO
z (Regular
sound)
On-screen display
(Selected sound)
STEREO
(Stereo sound)
z
MAIN
(Main sound)
z
SUB
(Sub sound)
Additional Information
15
Troubleshooting
Additional Information
If you have any problems, read this manual again and
check the countermeasure for each of the symptoms
listed below.
If the problem persists, contact your nearest authorized
service center or dealer.
check the countermeasure for each of the symptoms
listed below.
If the problem persists, contact your nearest authorized
service center or dealer.
Snowy picture
Noisy sound
Noisy sound
/ Check the antenna.
/ Check the antenna connection on the TV
/ Check the antenna connection on the TV
and on the wall.
/ Check the “TV SYSTEM” setting.
Dotted lines or stripes
/ This may be caused by local interference
(e.g. cars, neon signs and hair dryers). Adjust
the antenna for minimum interference.
the antenna for minimum interference.
Double images or “ghosts”
/ This may be caused by reflections from
nearby mountains or buildings. A highly
directional antenna may improve the picture.
directional antenna may improve the picture.
No picture
No sound
No sound
/ Press POWER.
/ Check the antenna connection.
/ Check the VCR connections.
/ Check the power cord connection.
/ Check the standby mode.
/ Check the antenna connection.
/ Check the VCR connections.
/ Check the power cord connection.
/ Check the standby mode.
Good picture
Noisy sound
Noisy sound
/ Check the “TV SYSTEM” setting.
/ Reduce the TREBLE level or select the
/ Reduce the TREBLE level or select the
“SOFT” sound mode.
Good picture
No sound
No sound
/ Press VOLUME +.
/ Press MUTING.
/ Press A/B/ENLARGE.
/ Press MUTING.
/ Press A/B/ENLARGE.
No color
/ Adjust the COLOR level in the on-screen
display.
/ Check the “COL. SYS” setting.
TV cannot receive stereo signal
/ Press A/B/ENLARGE until “AUTO”
appears on the screen.
TV cabinet creaks
/ Even if the picture or the sound is normal,
changes in the room temperature
sometimes make the TV cabinet expand or
contract, making a noise. This does not
indicate a malfunction.
sometimes make the TV cabinet expand or
contract, making a noise. This does not
indicate a malfunction.
Note on the remote commander
•
The supplied remote commander is used on several models of
the TV. If you do not find instructions for some controls that
are on the remote commander, that means your TV does not
employ the features of those controls, e.g. TEXT.
the TV. If you do not find instructions for some controls that
are on the remote commander, that means your TV does not
employ the features of those controls, e.g. TEXT.
Notes
•
When you switch on the TV, you may hear the “boon” sound
that is caused by the demagnetization of the TV. This does not
indicate a malfunction.
that is caused by the demagnetization of the TV. This does not
indicate a malfunction.
•
The picture color may become abnormal if you change the
direction of your TV. To obtain the normal picture color, press
POWER on the TV to switch off the TV for five minutes and
then switch it on again.
direction of your TV. To obtain the normal picture color, press
POWER on the TV to switch off the TV for five minutes and
then switch it on again.
WARNING
Do not install the appliance in a confined space, such as
a bookcase or built-in cabinet.
Do not install the appliance in a confined space, such as
a bookcase or built-in cabinet.
– 11 –
KV
-J25MN1AK
-J25MN1AK
RM-883
2-1. 3D SPEAKER BOX REMOVAL
2-2. REAR COVER REMOVAL
2-3. SPEAKER REMOVAL
SECTION 2
DISASSEMBLY
1
3D Speaker box
Red wire
Black wire
2
Rear cover
1
Two screws
(
+
BVTP 4
×
16)
1
Four screws
(
+
BVTP 4
×
16)
1
Two screws
(
+
BVTP 4
×
16)
3
One screw
(
+
BVTP 3
×
16)
1
Two screws (Washer head)
(
+
BVTP 4
×
16)
2
Speaker bracket (L/R) assy
2-4. CHASSIS ASSY REMOVAL
1
Chassis assy
– 12 –
KV
-J25MN1AK
-J25MN1AK
RM-883
2-5. SERVICE POSITION
2-6. A3, A4, A11 AND A12 BOARDS REMOVAL
2-7. K1 BOARD REMOVAL
2
A4 Board
1
One connector
3
A11 board
4
A12 board
5
A3 board
1
Connector
3
K1 Board
2
Two screws
(
+
BVTP 3
×
12)
2-8. K BOARD REMOVAL
K Board
Click on the first or last page to see other KV-J25MN1AK service manuals if exist.