DOWNLOAD Sony KV-XG25M50 Service Manual ↓ Size: 8.06 MB | Pages: 74 in PDF or view online for FREE

Model
KV-XG25M50
Pages
74
Size
8.06 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-xg25m50.pdf
Date

Sony KV-XG25M50 Service Manual ▷ View online

 17 
KV
-XG25M50
RM-952
Additional Information
24
Troubleshooting Shortcuts
For better viewing, please check the following connections.
• Snowy
• Distorted
Noisy/
picture
picture
distorted
sound
Wall antenna
terminal
UHF
VHF
Booster
VCR
Check the antenna direction.
Incorrect antenna direction may cause:
Check the antenna
type.
Wrong type of antenna
may cause:
• No picture
• Snowy picture
Check connection
on the wall
antenna terminal.
Loose connection may
cause:
• Snowy picture
• Distorted sound
Check if you need
booster to increase
signal level.
Too strong signal level
may cause:
• Distorted picture
• Noisy sound
Antenna connection
Additional Information
Additional Information
25
P166 SECTEXT   166   FR1  MAR   03:59:09
Fom Singapore
To PARIS
To OSAKA
To ROMA
To SYDNEY
Day   Dep/Arr       Flight    Alrcraft
1.6   220/0588     SQ28       747
   2   2130/1225   PA115      L15 
   3   2115/1330   SQ26       747
2.7   2130/0745   SQ24       747
   4   2300/0915   AZ487     747
2.5   1000/1715   SQ6         747
4.6   0930/2015   CX522     L10 
   1   2210/0610   SQ21A    747 
   2   2100/0835   SQ21A    747
Check connection
on the VCR and on
the TV.
Loose connection may
cause:
  Snowy picture
•  Distorted sound
•  No picture
For more information, please see
Troubleshooting
 on page 26 or
consult your dealer for guidance.
AC Connection
Check connection on
the AC socket.
Loose connection may cause:
• no power
• no picture with no sound
Additional Information
Connection
to TV
Double image •
Missing
picture
Teletext
characters
(KV-XG29M61/
XA21M61 only)
 18 
KV
-XG25M50
RM-952
Additional Information
26
• Check the antenna cable and connection
on the TV, VCR and on the wall.
• Press SELECT until “MANUAL
PROGRAM” appears on the screen, then
preset the channel again.
• Check the antenna type (VHF/UHF).
Contact a Sony dealer for advice.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Try using a booster.
• Turn off or disconnect the booster if it is
in use.
• If the sound of all the channels are noisy,
check the TV system (TV SYS) setting,
then press AUTO PROGR to preset the
channels again.
• If the sound of some channels are noisy,
select the channel, then select the
appropriate TV system (TV SYS).
• If the sound of some channels are noisy,
select the channel, then press A/B to select
the main sound (KV-XG29M61/XA21M61
only).
• Check the power cord, antenna and the
VCR connections.
• Press ?/1 (power).
• Press ! (main power) on the TV to turn
off the TV for about five seconds, then
turn it on again.
Snowy picture
Noisy sound
Distorted picture
Noisy sound
Good picture
Noisy sound
No picture
No sound
Troubleshooting
If you find any problem while viewing your TV, please check the following guide.
If any problem persists, contact your Sony dealer.
Possible cause
Symptom
Solutions
• Connection is loose or
the cable is damaged.
• Channel presetting is
inappropriate or
incomplete.
• The antenna type is
inappropriate.
• The antenna direction
is inappropriate.
• Signal transmission is
low.
• Broadcast signals are
too strong.
• The TV system setting
or channel presetting
is inappropriate or
incomplete.
• The selected sound is
inappropriate.
• The power cord,
antenna or VCR is not
connected.
• The TV is not turned
on.
Page
4
10
9
10
20
4
13
12
Additional Information
27
Good picture
No sound
Dotted lines or
stripes
Double images or
“ghosts”
No color
Abnormal color
patches
TV cannot receive
stereo broadcast
signal
(Not used for
this models)
• Press 2 + to increase the volume level.
• Press % to cancel the muting.
• Press A/B until a better sound is heard
(KV-XG29M61/XA21M61 only).
• Do not use a hair dryer or other
equipment near the TV.
• Adjust the antenna direction for
minimum interference. Contact a Sony
dealer for advice.
• Use a highly directional antenna.
• Use the fine tuning (FINE) function.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Turn off or disconnect the booster if it is
in use.
• Press SELECT until “COLOR” appears
on the screen, then press + or – to adjust
the color level.
• Press SELECT until “COLOR SYS ”
appears on the screen, then check the
color system setting (usually set this to
“AUTO”).
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Keep external speakers or other electrical
equipment away from the TV. Do not
move the TV while the TV is turned on.
Press ! (main power) on the TV to turn
off the TV for about five minutes, then
turn it on again.
• Press A/B until “AUTO” appears
on the screen.
Possible cause
Symptom
Solutions
continued
• The volume level is
too low.
• The sound is muted.
• Broadcast signal has a
transmission problem.
• There is local
interference from cars,
neon signs, hair
dryers, power
generators, etc.
• Broadcast signals are
reflected by nearby
mountains or
buildings.
• The antenna direction
is inappropriate.
• Use of a booster is
inappropriate.
• The color level setting
is too low.
• The color system
setting is
inappropriate.
• The antenna direction
is inappropriate.
• The magnetic
disturbance from
external speakers or
other equipment, or
the direction of the
earth’s magnetic field
may affect the TV.
• The stereo reception
setting is
inappropriate.
12
13
20
11
16
11
20
Page
 19 
KV
-XG25M50
RM-952
Additional Information
28
4
    20
22
4
11
13
11
29
Stereo broadcast
sound switches on
and off or is distorted.
or
The sound switches
between monaural
and stereo frequently.
(Not used for this
models)
“100” appears on
the top of the
screen and there is
no Teletext display.
(Not used for this
models)
Teletext display is
incomplete
 (snowy picture or
double images).
(Not used for this
models)
Picture slant
Lines moving across
the TV screen.
The 1 indicator on
your TV flashes red
 a number of times
between 3-second
intervals.
TV cabinet creaks.
A “boom” sound is
heard when the TV
is turned on.
Troubleshooting (continued)
Possible cause
Symptom
Solutions
• Connection is loose or
the cable is damaged.
• The antenna direction
is inappropriate.
• Broadcast signal has a
transmission problem.
• The channel carries no
Teletext broadcast.
• Connection is loose or
the cable is damaged.
• The antenna direction
is inappropriate.
• Signal transmission is
too low.
• The magnetic
disturbance from
external speakers or
other equipment, or
the direction of the
earth’s magnetic field
may affect the TV.
• There is interference
from external sources,
e.g., heavy machineries,
nearby broadcast
station.
• Your TV may need
service.
• Changes in room
temperature
sometimes make the
TV cabinet expand or
contract, making a
noise. This does not
indicate a malfunction.
• The TV’s demagnetizing
function is working.
This does not indicate a
malfunction.
Page
• Check the antenna cable and connection
on the TV, VCR and on the wall.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Press A/B until a better sound is heard.
•Check the antenna cable and connection
on the TV, VCR, and at the wall.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Try using a booster.
• Use the fine tuning (FINE) function.
• Keep external speakers or other electrical
equipment away from the TV.
• Press SELECT until “PIC ROTATION”
appears on the screen, then press + or –
to align the picture to the TV screen.
• Use the fine tuning (FINE) function.
•Contact your nearest Sony service center.
Additional Information
29
2
L(MONO)
R
PROGR
SELECT
AUTO
PROGR
!
Self-diagnosis function
Your TV is equipped with a self-diagnosis function. If there is a
problem with your TV, the 1 indicator flashes red. The number of
times the 1 indicator flashes indicates the possible causes.
1
Check that the 1 indicator flashes red a number of times between 3-second
intervals.
2
Count the number of times the 1 indicator flashes.
3
Press ! (main power) to turn off your TV.
4
Inform your nearest Sony service center about the number of times the
1
 indicator flashes.
Be sure to note the model name and serial number located on the rear of
your TV.
Front of TV
 1 indicator
 20 
KV
-XG25M50
RM-952
Additional Information
30
Overview of controls
TV front panel
PROGR
SELECT
 AUTO
PROGR
2
(MONO)
Page
Function
Button
Preset channels automatically.
5
Select the desired item.
11
Select program number.
12
Turn off completely or turn on the TV.
12
Adjust volume.
12
Standby indicator.
12
Select TV or video input.
13
Wake Up indicator.
14
Stereo/bilingual indicator.
20
Headphone jack.
AUTO PROGR
SELECT
PROGR +/–
!
+/–
1
t
(KV-XG29M61/XA21M61 only)
i
Additional Information
31
Remote Control
TV
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND 
MODE
 
FAVORITE
PROGR
-
2
The names/symbols of
buttons on the remote are
indicated in different colors to
represent the available
functions.
Label color
White
Green
Button function
For general TV
operations
For Teletext
operations
Page
Button
Function
SELECT
+/–
PROGR +/–
0 – 9, 
-
2
 +/–
?/1
t
a
%
JUMP
Timer operations
PIC MODE
SOUND MODE
FAVORITE
Stereo/bilingual operations
(Not used for this models)
A/B
Teletext operations
(Not used for this models)
x
 (red, green,
yellow, blue)
Select the desired item.
10
Adjust value.
10
Select program number.
12
Input numbers.
12
Adjust volume.
12
Turn off temporarily or
12
turn on the TV.
Select TV or video input.
13
Display the TV program.
13
Mute the sound.
13
Display on-screen information.
13
Jump to previous program
number.
13
Set TV to turn on automatically.
14
Set TV to turn off automatically.
14
Select picture mode.
15
Select sound mode.
15
Display favorite channels.
18
Select stereo/bilingual mode.
20
Display Teletext broadcast.
22
Display Teletext service contents.
23
Stop Teletext display from scrolling.
23
Reveal concealed information.
23
Enlarge the Teletext display.
23
Show TV screen while
23
waiting for Teletext page.
Access a FASTEXT menu.
23
Page of 74
Display

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