Sony KV-XG25M50 User manual

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MODEL COMMANDER DEST. CHASSIS NO.
KV-XG25M50 RM-952 Malaysia SCC-U45D-A
MODEL COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON COLOR TV
SERVICE MANUAL BG-3R
TV
123
46
789
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-
2

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KV-XG25M50
RM-952
SPECIFICATIONS
Note
Powe equi ements 220-240 V AC, 50/60 Hz
Powe consumption (W) Indicated on the rear of the TV
Television system B/G, I, D/K,
Colo system PAL, PAL 60, SECA , NTSC4.43, NTSC3.58
Channel cove age
B/G VHF: E2 to E12 / UHF: E21 to E69 / CATV: S01 to S03, S1 to S41
IUHF: B21 to B68 / CATV: S01 to S03, S1 to S41
D/K VHF: C1 to C12, R1 to R12 / UHF: C13 to C57, R21 to R60
CATV: S01 to S03, S1 to S41, Z1 to Z39
MVHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 to A-2, A to W+4, W+6 to W+84
˘˘
˘˘
˘(Antenna) 75-ohm external terminal
Audio output 5W + 5W
Numbe of te minal
D(Video) Input: 3* Output: 1 Phono jacks; 1 VP-P, 75 ohms * Two input lines available
≥Audio Input: 3* Output: 1 Phono jacks; 500 mVrms * Two input lines available
2(Headphone) Output: 1 Stereo inijack
Pictu e tube 25 inch
Tube size (cm) 64 easured diagonally
Sc een size (cm) 60 easured diagonally
Dimension (w/h/d, mm) 722 × 515 × 512
Mass (kg) 38
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.

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KV-XG25M50
RM-952
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION ................................ 4
1. GENERAL ........................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 21
2-2. Speaker Removal ..................................................... 21
2-3. Chassis Assy Removal ............................................. 21
2-4. Service Position ....................................................... 21
2-5. Replacement of Parts ............................................... 21
2-5-1. Replacement of Control Button ..................................... 21
2-5-2. Replacement of Light Guide .......................................... 21
2-6. Terminal Bracket Removal ...................................... 22
2-7. H2 Board Removal .................................................. 22
2-8. A and B6 Boards Removal ...................................... 22
2-9. Picture Tube Removal .............................................. 23
2-10. Removal of Anode Cap ............................................ 23
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 24
3-2. Convergence ............................................................. 25
3-3. Focus Adjustment .................................................... 27
3-4. G2 (Screen) and White Balance Adjustments ......... 28
4. CIRCUIT ADJUSTMENT
4-1. Adjustments with Commander ................................ 29
4-2. Adjustment ethod ................................................. 30
4-3. Picture Quality Adjustments .................................... 35
4-4. Deflection Adjustment ............................................. 00
4-5. H-Trapezoid Adjustment ......................................... 00
4-6. A Board Adjustment After IC003 ( emory)
Replacement ............................................................. 35
4-7. Picture Distortion Adjustment ................................. 36
Section Title Page
5. DIAGRAMS
5-1. Block Diagram ......................................................... 37
5-2. Circuit Boards Location .......................................... 39
5-3. Schematic Diagrams ................................................ 40
(1) Schematic Diagram of B6 Boards ........................... 41
(2) Schematic Diagrams of A Board ............................. 43
(3) Schematic Diagram of H2 Board ............................... 59
(4) Schematic Diagrams of C6 Board ........................... 61
(5) Schematic Diagram of V 1 Board ......................... 63
5-4. Voltage easurements ............................................ 64
5-5. Waveforms ............................................................... 68
5-6. Printed Wiring Boards and Parts Location .............. 69
5-7. Semiconductors ........................................................ 74
6. EXPLODED VIEWS
6-1. Picture Tube ............................................................. 77
6-2. Chassis ..................................................................... 78
7. ELECTRICAL PARTS LIST....................................... 79

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KV-XG25M50
RM-952
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically
begin to flash.
The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER
lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot
be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past
problems and how often these problems occur.
1. DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the lamp will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnostic
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP) or
overvoltage
(OVP)
• Vertical deflection
stopped
• Horizontal
deflection
overdrive
• White balance
failure (no
PICTURE)
• Micro reset
Detected
Symptoms
• Power does not come on.
• No power is supplied to the
TV.
• AC power supply is faulty.
• Power does not come on.
• Load on power line is
shorted.
• Has entered standby state
after horizontal raster.
• Vertical deflection pulse is
stopped.
• Power line is shorted or
power supply is stopped.
• No raster is generated.
• CRT cathode current
detection reference pulse
output is small.
• Power is shut down shortly,
after this return back to
normal.
• Detect Micro latch up.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
SELF DIAGNOSTIC FUNCTION
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
5 times
—
Self-diagnostic
display/Diagnostic
result
—
002:000 or
002:001~255
003:001~255
004:001~255
at the same time
005:000 or
005:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F8601
(B6)
• H.OUT Q511 is shorted. (A
board)
• IC1800 is shorted. (C6
board)
• -13V is not supplied. (A
board)
• IC 503 faulty (A board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT is faulty. (C6
board)
• IC301 is faulty. (A board)
• No connection A board to
C6 board.
• Discharge CRT (C6 Board)
• Static discharge
• External noise

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KV-XG25M50
RM-952
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item Flash Count*
+B overcurrent/overvoltage 2 times
Vertical deflection stopped
White balance failure 5 times
* One flash count is not used for self-diagnostic.
3. STOPPING THE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp
from flashing.
STANDBY/SLEEP lamp
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
5 times

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KV-XG25M50
RM-952
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it
is possible to bring up past occurances of failure for confirmation on the screen:
[To B ing Up Sc een Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screendisplay] /channel [5] /Sound volume [-] /Power ON
˘
Note that this differs from entering the service mode (mode volume [+]).
Self-Diagnosis sc een display
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen
during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after
completion of the repairs.
[Clea ing the esult display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic
screen is being displayed.
Channel [8] /0
[Quitting Self-diagnostic sc een]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
002 : 000
003 : 000
004 : 000
005 : 001
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
101 : 000
SELF DIAGNOSTIC

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KV-XG25M50
RM-952
6. SELF-DIAGNOSTIC CIRCUIT
[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON
and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven
verticals in a period, the unit will automatically turn off.
[Verticaldeflectionstopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001
shut down the power supply.
[Verticaldeflectionovercurrent] Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be
shut down when detect this by IC001.
[ hitebalancefailure] If the RGB levels* do not balance or become low level within 5 seconds, this error will be
detected by IC301. TV will stay on, but there will be no picture.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
IC301
Y/CHROMA JUNGLE
FROM
CRT
FROM
[+B] Q604 C6
[V] Q509/507
IC001
SYSTEM
IC003
MEMORY
B-DAT
IO-SDAT
IK-IN
MP/
PROTECT
IO-8DAT
O-LED
SDA
54521
18 51
4635

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KV-XG25M50
RM-952
SECTION 1
GENERAL
The ope ating inst uction mentioned he e a e pa tial abst acts
f om the Ope ating Inst uction Manual. The page numbe s of
the Ope ating Inst uction Manual emain as in the manual.
2
WARNING • Dangerously high voltages are present inside the TV.
• Operate the TV only between 220 – 240 V AC.
To prevent ire or shock hazard, do not expose
the TV to rain or moisture.
Do not operate the TV i any liquid or solid object
alls into it. Have it checked immediately by
quali ied personnel only.
Do not open the cabinet and the rear cover o the
TV as high voltages and other hazards are
present inside the TV. Re er servicing and
disposal o the TV to quali ied personnel.
Your TV is recommended or home use only.
Do not use the TV in any vehicle or where it may
be subject to excessive dust, heat, moisture or
vibrations.
Do not block the ventilation openings o the TV.
Do not install the TV in a con ined space, such
as a bookcase or built-in cabinet.
For children’s sa ety, do not leave children alone
with the TV. Do not allow children to climb onto
it.
Do not plug in too many appliances to the same
power socket. Do not damage the power cord.
Clean the TV with a dry and so t cloth.
Do not use benzine, thinner, or any other chemicals
to clean the TV. Do not scratch the picture tube.
For your own sa ety, do not touch any part o the
TV, the power cord and the antenna cable during
lightning storms.
Pull the power cord out by the plug. Do not pull
the power cord itsel . Disconnect the TV be ore
moving it or i you are not going to use it or
several days.
3
GB
Using Your New TV
Do not install the TV in an unstable position.
Use a proper TV stand. Do not place any objects on the TV.
WARNING (continued)

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KV-XG25M50
RM-952
Using Your New TV
4
Using Your New TV
Getting Started
Step 1
Connect the antenna
I you wish to connect a VCR, see the Connecting a VCR diagram below.
Using Your New TV
IEC connector
(not supplied)
Rear of TV
Connecting a VCR
To watch the video input, press t (see page 13).
: Signal flow
or
Antenna ca le
(not supplied)
Antenna ca le
(not supplied)
(yellow)
-L (MONO)(white) -R (red)
To video
and audio
outputs Audio/Video ca le (not supplied)
To 8 (antenna)
To antenna output
: Signal flow
VCR
To
t
1 or 2 (video input)
Rear of TV
VIDEO
VIDEO IN
VIDEO OUT
AUDIO
RL
Using Your New TV 5
Using Your New TV
Step 2
Note
• Do not use old batteries nor use di erent types o batteries together.
Front of TV
Notes
• I you connect a monaural VCR, connect the yellow plug to (the
yellow jack) and the black plug to -L (MONO) (the white jack).
• I you connect a VCR to the 8 (antenna) terminal, preset the signal
output rom the VCR to the program number 0 on the TV.
• When no signal is input rom the connected video equipment, the TV
screen becomes blue.
KV-XG29M61/XG29M50/XG25M50 only
• Do not connect video equipment to the t 2 (video input) jacks at the
ront and the rear o your TV at the same time; otherwise the picture will
not be displayed properly on the screen.
CAUTION
• Do not connect the power cord until you have completed making all other
connections; otherwise a minimum leakage current might low through
the antenna and other terminals to ground.
• To avoid battery leakage and damage to the remote, remove the batteries
rom the remote i you are not going to use it or several days. I any
liquid that leaks rom the batteries touches you, immediately wash it
away with water.
Insert the atteries
into the remote
Step 3
Preset the channels automatically
Tips
• I you want to stop automatic channel presetting, press SELECT twice.
• I your TV has preset an unwanted channel or cannot preset a particular
channel, then preset your TV manually (see page 10).
Note
• During automatic channel presetting, your TV screen will indicate
“B/G” , “I”, “D/K” or “M” or the TV system.
AUTO
PROGR
1
1
VHF LOW AUTO
1
2
2
L(MONO) R
PROGR
SELECT AUTO
PROGR
!

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KV-XG25M50
RM-952
Using Your New TV
6
Connecting optional components
You can connect optional audio/video components, such as a VCR, multi disc player,
camcorder, video game or stereo system.
To watch the video input o the connected equipment, press t (see page 13).
Connecting a camcorder/video game equipment
using the t (video input) jacks
Notes
KV-XA21M61/XA21M50 only
• You can also connect video equipment to the t 1 (video input) jack at
the rear o your TV.
KV-XG29M61/XG29M50/XG25M50 only
• You can also connect video equipment to the t 1 or 2 (video input) jacks
at the rear o your TV.
• Do not connect video equipment to the t 2 (video input) jacks at the
ront and the rear o your TV at the same time; otherwise the picture will
not be displayed properly on the screen.
Connecting audio/video equipment using the T
(monitor output) jacks
Front of TV
Camcorder
Video game
equipment
To video and
audio outputs
: Signal flow
To
t
2
(video input)
or
Audio/Video ca le (not supplied)
(yellow)
-L (MONO)
(white)
-R (red)
Rear of TV
To
antenna
output
To video and
audio inputs
or
Audio system
To
audio
inputs
VCR
: Signal flow
Antenna ca le (not supplied)
Audio/Video ca le
(not supplied)
2
L(MONO)R
2
L(MONO) R
PROGR
SELECT AUTO
PROGR
To T
(monitor
output)
Using Your New TV
8
Securing the TV
To prevent the TV rom alling, secure the TV using one o the ollowing methods:
AWith the supplied screws, attach the band to the TV stand and to the rear o
the TV using the provided hole.
or
BPut the cord or chain through the clamps to secure the TV against a wall or
pillar.
Note
• Use only the supplied screws. Use o other screws may damage the TV.
20
mm
3.8 mm
or
AB

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KV-XG25M50
RM-952
Using Your New TV
Using Your New TV
9
Presetting
channels
You can preset up to 100 TV channels in
numerical sequence rom program
number 1 using the remote and the
buttons on your TV as well.
Presetting channels automatically
1Press ! to turn on the TV.
2Press AUTO PROGR.
Note
• During automatic channel presetting, your TV screen will indicate “B/G” ,
“I”, “D/K” or “M” or the TV system.
To preset channels automatically from a specified program num er
(1) Press SELECT until “AUTO PROGRAM” appears.
(2) Press + or –.
The on-screen display will start lashing.
(3) Press PROGR +/– or the number buttons until the desired program number
appears.
(4) Press + or –.
2
L(MONO) R
PROGR
SELECT AUTO
PROGR
AUTO
PROGR
!
continued
TV
123
46
789
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-
2
VHF LOW AUTO
!
Num er uttons
~/1
SELECT
2 +/–
PROGR +/–
+ or –
PIC MODE
Using Your New TV
10
Presetting channels manually
1Press SELECT until
“MANUAL PROGRAM”
appears.
2Press + or –.
3Press PROGR +/– or the
number buttons until the
desired program number
appears.
4Press + or – until the
desired channel picture
appears.
5Press SELECT.
Note
• I you preset a locked program number, that particular program number
will be unlock automatically (see page 19).
To change the TV system setting
I the picture or sound is abnormal when receiving programs through the 8 (antenna)
terminal
(1) Press SELECT until “TV SYS” appears.
(2) Press + or – to select the appropriate
TV system until the picture or sound
quality is optimal.
or
Presetting channels (continued)
MANUAL PROGRAM
SELECT
VHF LOW B/G
123 456
78
0
-/--
9
PROGR
SELECT
1
B/G I D/K M
TV SYS: B/G

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KV-XG25M50
RM-952
Using Your New TV
Using Your New TV
11
To change the color system setting
I the color is abnormal when receiving programs through the 8 (antenna) terminal
or the t (video input) jack.
(1) Press SELECT until “COLOR SYS” appears.
(2) Press + or – to select the appropriate
color system until the color is
optimal.
Tip
• Normally set “COLOR SYS” to “AUTO”.
Skipping program num ers
1Press PROGR +/– or the number buttons until the unused or unwanted
program number appears.
2Press SELECT until “MANUAL PROGRAM” appears.
3Press + or –.
4Press PIC MODE.
5Press SELECT.
To restore the skipped program num er again Preset the channel automatically or manually.
Tip
• You can also use SELECT and 2 +/– on the TV to preset channels and
skip program numbers.
To use the fine tuning (FINE) function
The ine tuning (FINE) unction may help to reduce the ollowing problems:
incomplete Teletext display (KV-XG29M61/XA21M61 only), double images and lines
moving across the TV screen.
You can use the ine tuning unction as below:
(1) Select the program number you want to adjust.
(2) Press SELECT until “MANUAL PROGRAM” appears on the screen.
(3) Press + or – on the remote control once.
(4) Press to display “FINE” on the screen.
(5) Press + or – continuously until the above problems are minimized.
The + or – icon on the screen lashes while tuning.
(6) Press SELECT to return to normal screen.
COLOR SYS: AUTO
AUTO PAL SECAM
NTSC 3.58NTSC 4.43
Using Your New TV
12
Watching the TV
This section explains unctions used
while watching the TV. Most operations
can be done using the remote.
1Press ! to turn on the TV.
When the TV is in the
standby mode (the 1
indicator on the TV is lit
red), press
?/
1 on the
remote or PROGR +/– on
the TV.
2Press PROGR +/– or the
number buttons to select
the program number.
For double digit numbers,
press -, then the number
(e.g., or 25, press -, then
2 and 5).
3Press 2 +/– to adjust the
volume.
or
1
indicator
%
?/
1
t
a
Num er uttons
SELECT
2
+/–
PROGR +/–
+ or –
JUMP
2
L(MONO) R
PROGR
SELECT AUTO
PROGR
PROGR
SELECT AUTO
PROGR
!
TV
123
46
789
-0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
2
123
456
78
0
-/--
9
PROGR
!

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KV-XG25M50
RM-952
Using Your New TV
Using Your New TV
13
To
Turn o temporarily
Turn o completely
Mute the sound
Watch the video input
(VCR, camcorder, etc.)
Jump back to the previous program
number
Display the on-screen in ormation*
Adjust the volume o all program
numbers automatically
Adjust the picture position when it
is not aligned to the TV screen
Additional tasks
* The picture, sound, and either the program number or video input are
displayed. The on-screen display or the picture and sound in ormation
disappears a ter about three seconds.
Changing the on-screen display language
1Press SELECT until
“LANGUAGE / :
ENGLISH”appears on the
screen.
2Press + or – to select
““.
Tip
• You can also use SELECT and 2 +/– on the TV to select the on-screen
display language.
PIC ROTATION
LANGUAGE / : ENGLISH
SELECT
/ LANGUAGE:
continued
Press
?/
1. The 1 indicator on the TV lights up red.
! on the TV.
%.
t to select “VIDEO 1” or “VIDEO 2”.
To return to the TV program, press a.
JUMP.
.
SELECT repeatedly until “INTELLIGENT VOL”
appears, then press + or – to select “ON”.
To cancel, select “OFF”.
SELECT repeatedly until “PIC ROTATION” appears,
then press + or – to adjust the alignment o the picture
position.
The
+
or icon on the screen lashes while adjusting.
Using Your New TV
14
Setting the Wake Up timer
1Press until the desired
period o time appears.
The Wake Up timer starts
immediately a ter you have
set it.
2Select the program number or video input you want to display when you
wake up.
3Press ?/1 or set the Sleep timer i you want the TV to turn o automatically.
The indicator on the TV lights up orange.
To cancel the Wake Up timer
Press until “WAKE UP TIMER: OFF” appears or turn o the TV’s
main power.
Note
• I no buttons or controls are pressed or more than two hours a ter the
TV is turned on using the Wake Up timer, the TV automatically goes into
the standby mode. To continue watching the TV, press any button or
control on the TV or the remote.
Setting the Sleep timer
Press until the desired
period o time appears.
The Sleep timer starts
immediately a ter you have
set it.
To cancel the Sleep timer
Press until “SLEEP TIMER: OFF” appears or turn the TV o .
WAKE UP TIMER:10M
WAKE UP TIMER:OFF WAKE UP TIMER:12H00M
Afte 10 minutes
No Wake Up time Afte 12 hou s
SLEEP TIMER:30M SLEEP TIMER:60M
SLEEP TIMER:OFF SLEEP TIMER:90M
Afte 30 minutes
No Sleep Time
Afte 60 minutes
Afte 90 minutes
Watching the TV (continued)

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KV-XG25M50
RM-952
Advanced Operations 15
Customizing the
picture and sound
You can customize the picture and
sound by selecting the picture and
sound modes or by adjusting its
settings.
You can change the sound e ect by
selecting the surround mode.
Selecting the picture and sound modes
To select the picture mode
Press PIC MODE
repeatedly until you get
the desired picture mode.
Select To
“DYNAMIC” receive high contrast pictures.
“STANDARD” receive normal contrast pictures.
“SOFT” receive mild pictures.
To select the sound mode
Press SOUND MODE
repeatedly until you get
the desired sound mode.
Select To
“DYNAMIC” listen to dynamic and clear sound that emphasizes the low and
high sound.
“DRAMA” listen to sound that emphasizes vocals and background music.
“SOFT” receive so t sound.
Advanced Operations
TV
SOUND
MODE
FAVORITE
PROGR
2
STANDARDDYNAMIC SOFT
PIC MODE
≥
DYNAMIC
≥
DRAMA
≥
SOFT
SOUND
MODE
Advanced Operations
SOUND MODE
PIC MODE
SELECT
+ or –
continued
Advanced Operations
16
Adjusting the picture and sound settings
1Press SELECT until the
desired setting appears.
Each time you press
SELECT, the setting
item will change as ollows:
2Press + or – to adjust the
item.
3To adjust other items, repeat steps 1 to 2.
* “HUE” can be adjusted or the NTSC system only.
Notes
• When you select a picture or sound mode, the adjusted settings will be
reset according to the selected mode.
• You can also use SELECT and 2 +/– on the TV to adjust the picture and
sound settings.
SELECT
PICTURE 60
PICTURE COLOR BRIGHT HUE*
BALANCE TREBLE BASS SHARP
Customizing the picture and sound (continued)

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KV-XG25M50
RM-952
Advanced Operations 17
Selecting the surround mode
1Press SELECT repeatedly
until “SURROUND”
appears.
2Press + or – to select the
desired surround sound.
Select To “MOVIE” listen to sound that spreads out over a large area, giving the eeling
o being at a movie theatre.
“MUSIC” listen to the sound that gives the eeling o being at a live concert.
“OFF” turn o the surround sound.
SURROUND: MOVIE
SELECT
MUSICMOVIE OFF
KV-XA21M61/XA21M50
1Press SELECT repeatedly
until “SURROUND”
appears.
2Press + or – to select “ON”.
To turn o the surround
mode, select “OFF” .
SURROUND: ON
SELECT
ON OFF
Advanced Operations
18
Viewing your
favorite channels
You can display six o your avorite
channels or quick and easy selection.
You can program the avorite channel
as well.
Selecting a favorite channel
1Press FAVORITE.
2Press the number button
rom 1 to 6 to select the
desired avorite channel.
When you use the “FAVORITE CH”
eature or the irst time, six preset channels will appear.
123
46
789
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-
2
FAVORITE
+ or –
PROGR +/–
Num er
uttons
Programming the favorite channel
1Press PROGR +/– or
number buttons to select
the program number you
want to program (e.g.,
program number 8).
2Press SELECT until
“FAVORITE CH SETUP”
appears.
3Press + or – to select the
avorite channel you want to
program (e.g., 3).
4Press SELECT.
The selected avorite channel (e.g., 3)
turns red or about one second.
5To program other avorite channels, repeat steps 1 to 4.
or
FAVORITE
FAVORITE CH
1PR01 2PR02 3PR03
4PR04 5PR05 6PR06
123
456
1
123 456
78
0
-/--
9
PROGR
8
FAVORITE CH SETUP :
SELECT
FAVORITE CH SETUP :
SELECT

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– 16 –
KV-XG25M50
RM-952
Advanced Operations 19
Blocking the
channels
(CHILD LOCK)
You can lock some program numbers to
prevent children rom watching certain
channels, by using the buttons on the
remote control.
1Select the program number you want to lock.
2Press SELECT until “CHILD
LOCK” appears on the
screen.
3Press + or – to select “ON”.
The symbol appears on
the screen.
To cancel, press + or – to
select “OFF”. The
symbol disappears rom
the screen.
Note
• I you preset a locked program number, that particular program number
will be unlocked automatically (see page 9).
CHILD LOCK: ON
1
CHILD LOCK: OFF
SELECT
TV
123
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5
JUMP
SOUND
MODE
FAVORITE
PROGR
-
2
SELECT
+ or –

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– 17 –
KV-XG25M50
RM-952
Additional In ormation
24
Trou leshooting Shortcuts
For better viewing, please check the ollowing 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 o 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
ooster to increase
signal level.
Too strong signal level
may cause:
•
Distorted picture
• Noisy sound
Antenna connection
Additional Information
Additional In ormation 25
P166 SECTEXT 166 FR1 MAR 03:59:09 Fom Singapore To PARIS To OSAKA To R O M A 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 in ormation, please see
Troubleshooting on page 26 or
consult your dealer or 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)

http://cxema.ru
– 18 –
KV-XG25M50
RM-952
Additional In ormation
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 or advice.
• Adjust the antenna direction. Contact a
Sony dealer or advice.
• Try using a booster.
• Turn o or disconnect the booster i it is
in use.
• I the sound o all the channels are noisy,
check the TV system (TV SYS) setting,
then press AUTO PROGR to preset the
channels again.
• I the sound o some channels are noisy,
select the channel, then select the
appropriate TV system (TV SYS).
•
I the sound o 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
o the TV or about ive seconds, then
turn it on again.
Snowy picture
Noisy sound
Distorted picture
Noisy sound
Good picture
Noisy sound
No picture
No sound
Trou leshooting
I you ind any problem while viewing your TV, please check the ollowing guide.
I any problem persists, contact your Sony dealer.
Possi le causeSymptom 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 In ormation 27
Good picture
No sound
Dotted lines or
stripes
Dou le images or
“ghosts”
No color
A normal color
patches
TV cannot receive
stereo roadcast
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 or
minimum inter erence. Contact a Sony
dealer or advice.
• Use a highly directional antenna.
• Use the ine tuning (FINE) unction.
• Adjust the antenna direction. Contact a
Sony dealer or advice.
• Turn o or disconnect the booster i 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 or advice.
• Keep external speakers or other electrical
equipment away rom the TV. Do not
move the TV while the TV is turned on.
Press ! (main power) on the TV to turn
o the TV or about ive minutes, then
turn it on again.
• Press A/B until “AUTO” appears
on the screen.
Possi le cause
Symptom Solutions
continued
• The volume level is
too low.
• The sound is muted.
• Broadcast signal has a
transmission problem.
• There is local
inter erence rom cars,
neon signs, hair
dryers, power
generators, etc.
• Broadcast signals are
re lected by nearby
mountains or
buildings.
• The antenna direction
is inappropriate.
• Use o 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 rom
external speakers or
other equipment, or
the direction o the
earth’s magnetic ield
may a ect the TV.
• The stereo reception
setting is
inappropriate.
12
13
20
–
–
–
11
–
–
16
11
–
–
20
Page

http://cxema.ru
– 19 –
KV-XG25M50
RM-952
Additional In ormation
28
4
–
20
22
4
–
–
11
–
13
11
29
–
–
Stereo roadcast
sound switches on
and off or is distorted.
or The sound switches
etween 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
dou le images).
(Not used for this
models)
Picture slant
Lines moving across
the TV screen.
The 1 indicator on
your TV flashes red
a num er of times
etween 3-second
intervals.
TV ca inet creaks.
A “ oom” sound is
heard when the TV
is turned on.
Troubleshooting (continued)
Possi le causeSymptom 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 rom
external speakers or
other equipment, or
the direction o the
earth’s magnetic ield
may a ect the TV.
•
There is inter erence
rom 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 mal unction.
•
The TV’s demagnetizing
unction is working.
This does not indicate a
mal unction.
Page
•Check the antenna cable and connection
on the TV, VCR and on the wall.
•Adjust the antenna direction. Contact a
Sony dealer or 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 or advice.
•Try using a booster.
•Use the ine tuning (FINE) unction.
•Keep external speakers or other electrical
equipment away rom the TV.
•Press SELECT until “PIC ROTATION”
appears on the screen, then press + or –
to align the picture to the TV screen.
•Use the ine tuning (FINE) unction.
•Contact your nearest Sony service center.
—
—
Additional In ormation 29
2
L(MONO) R
PROGR
SELECT AUTO
PROGR
!
Self-diagnosis function
Your TV is equipped with a sel -diagnosis unction. I there is a
problem with your TV, the 1 indicator lashes red. The number o
times the 1 indicator lashes indicates the possible causes.
1Check that the 1 indicator lashes red a number o times between 3-second
intervals.
2Count the number o times the 1 indicator lashes.
3Press ! (main power) to turn o your TV.
4In orm your nearest Sony service center about the number o times the
1 indicator lashes.
Be sure to note the model name and serial number located on the rear o
your TV.
Front of TV
1 indicator

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– 20 –
KV-XG25M50
RM-952
Additional In ormation
30
Overview of controls
TV front panel
PROGR
SELECT
AUTO PROGR
2
(MONO)
PageFunction
Button
Preset channels automatically.5
Select the desired item. 11
Select program number. 12
Turn o 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 +/–
!
2 +/–
1
t
(KV-XG29M61/XA21M61 only)
i
Additional In ormation 31
Remote Control
TV
123
46
789
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-
2
The names/symbols o
buttons on the remote are
indicated in di erent colors to
represent the available
unctions.
La el color
White
Green
Button function
For general TV
operations
For Teletext
operations
PageButton Function
SELECT
+/–
PROGR +/–
0 – 9,
-
2
+/–
?/1
t
a
%
JUMP
Timer operations
PIC MODE
SOUND MODE
FAVORITE
Stereo/bilingual operations
(Not used or this models)
A/B
Teletext operations
(Not used or 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 o 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 in ormation.
13
Jump to previous program
number. 13
Set TV to turn on automatically.
14
Set TV to turn o automatically.
14
Select picture mode. 15
Select sound mode. 15
Display avorite channels. 18
Select stereo/bilingual mode. 20
Display Teletext broadcast. 22
Display Teletext service contents.
23
Stop Teletext display rom scrolling.
23
Reveal concealed in ormation. 23
Enlarge the Teletext display. 23
Show TV screen while 23
waiting or Teletext page.
Access a FASTEXT menu. 23