Sony KV-XF25M50 User manual

MODEL COMMANDER DEST. CHASSIS NO.
KV-XF25M50 RM-954 India SCC-U22S-A
KV-XF25M80 RM-954 India SCC-U22T-A
MODEL COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL BG-3S
Self Diagnosis
Supported model
(RM-954)
1
4
7
-/--
2
5
8
0
3
6
9

– 2 –
KV-XF25M50/XF25M80
RM-954
SPECIFICATIONS
Note
Power requirements 110-240 V AC, 50/60 Hz
Power consumption (W) Indicated on the rear of the TV
Television system B/G, I, D/K, M
Color system PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
Channel coverage
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: Z1 to Z39, S01 to S03, S1 to S41
MVHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 toA-2,A toW+4, W+6 to W+84
˘(Antenna) 75-ohm external terminal
Audio output 6W + 6W
Number of terminal
D(Video) Input: 3 Output: 1 Phono jacks; 1VP-P, 75 ohms
≥(Audio) Input: 3 Output: 1 Phono jacks; 500 mVrms
(SVideo) Input: 2 Y : 1 Vp-p, 75 ohms,
unbalanced, sync
negative
C :0.286 Vp-p, 75 ohms
2(Headphone) Output: 1 Minijack
Picture tube 25 inch
Tube size (cm) 64 Measured diagonally
Screen size (cm) 60 Measured diagonally
Dimension (w/h/d, mm) 722 ×515 ×512
Mass (kg) 39
Design and specifications are subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK !ON
THE SCHEMATIC DIAGRAMS, EXPLODEDVIEWS AND INTHE
PARTS LIST ARE CRITICALTO 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 CAPTOTHE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.

– 3 –
KV-XF25M50/XF25M80
RM-954
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION................................ 4
1. GENERAL........................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal................................................ 22
2-2. Speaker Bracket Removal........................................ 22
2-3. Chassis Assy Removal............................................. 22
2-4. F Bracket Removal .................................................. 22
2-5. Service Position ....................................................... 23
2-6. Replacement of Parts ............................................... 23
2-6-1. Replacement of Control Button ....................... 23
2-6-2. Replacement of Light Guide ............................ 23
2-7. Terminal Bracket Removal ...................................... 23
2-8. H3 Board Removal .................................................. 24
2-9. A and B3 Boards Removal ...................................... 24
2-10. Picture Tube Removal.............................................. 24
3. SET-UP ADJUSTMENTS
3-1. Beam Landing.......................................................... 26
3-2. Convergence............................................................. 27
3-3. Focus Adjustment .................................................... 29
3-4. G2 (Screen) and White BalanceAdjustments......... 30
4. CIRCUIT ADJUSTMENT
4-1. Adjustments with Commander ................................ 31
4-2. Adjustment Method ................................................. 32
4-3. Picture Quality Adjustments.................................... 37
4-4. A Board Adjustment After IC003 (Memory)
Replacement............................................................. 37
4-5. Picture DistortionAdjustment ................................. 38
Section Title Page
5. DIAGRAMS
5-1. Block Diagram ......................................................... 41
5-2. Frame Schematic Diagram ...................................... 45
5-3 Circuit Boards Location .......................................... 49
5-4. Schematic Diagrams and Printed Wiring Boards ... 50
(1) Schematic Diagram of A (1/2) Board...................... 52
(2) Schematic Diagram of A (2/2) Board...................... 55
(3) Schematic Diagram of B2 Board ............................ 60
(4) Schematic Diagrams of H3 and VM1 Boards ......... 61
(5) Schematic Diagram of B3 Board ............................ 95
(6) Schematic Diagram of F Board ............................... 71
(7) Schematic Diagram of C Board .............................. 73
5-5. Semiconductors ....................................................... 76
6. EXPLODED VIEWS
6-1. Speaker Bracket ...................................................... 79
6-2. Chassis .................................................................... 80
6-3. Picture Tube ............................................................ 81
7. ELECTRICAL PARTS LIST...................................... 82

– 4 –
KV-XF25M50/XF25M80
RM-954
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 F4601
(F)
• H.OUT Q511 is shorted. (A
board)
• IC701 is shorted. (C board)
• -13V is not supplied. (A
board)
• IC 503 faulty (A board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC701 is faulty.
(C board)
• IC301 is faulty. (A board)
• No connection A board to C
board.
• Discharge CRT (C Board)
• Static discharge
• External noise

– 5 –
KV-XF25M50/XF25M80
RM-954
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.
Lamp ON 0.3 sec. Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
5 times
STANDBY/SLEEP lamp

– 6 –
KV-XF25M50/XF25M80
RM-954
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 Bring Up Screen 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 screen display
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
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.
[Clearing the result 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 screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

– 7 –
KV-XF25M50/XF25M80
RM-954
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.
[White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 C
[H] D526
[V] Q509/507
IC001
SYSTEM IC003 MEMORY
B-DAT
IO-SDAT
IK-IN
MP/
PROTECT
IO-8DAT
O-LED
SDA
54521
18 51
4635

– 8 –
KV-XF25M50/XF25M80
RM-954
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
2
WARNING
• Dangerously high voltages are present inside the TV.
• Operate the TV only between 110 – 240 VAC.
To prevent fire or shock hazard, do not expose
the TV to rain or moisture.
Do not operate the TV if any liquid or solid object
falls into it. Have it checked immediately by
qualified personnel only.
Do not install the TV in hot, humid or excessively
dusty places.
Do not install the TV in a confined space, such
as a bookcase or built-in cabinet.
Do not block the ventilation openings of the TV.
Install the TV in a stable position. 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 soft cloth.
Do not use benzine, thinner, or any other chemicals
to clean the TV. Do not scratch the picture tube.
Do not open the cabinet and the rear cover of the
TV. Refer servicing to qualified personnel.
Pull the power cord out by the plug. Do not pull
the power cord itself. Disconnect the TV if you
are not going to use it for several days.
For your own safety, do not touch any part of the
TV, the power cord and the antenna cable during
lightning storms.
4
Using Your New TV
Getting Started
Step 1
Connect the antenna
If you wish to connect a VCR, see the “Connecting a VCR” diagram below.
CAUTION
Do not connect the power cord until you have completed making all other
connections; otherwise a minimum leakage current might flow through the antenna
and other terminals to ground.
Connecting a VCR
To watch the video, see page 9.
Using Your New TV
IEC connector
(not supplied)
To video and
audio outputs
VCR
(yellow)
-L (MONO) (white)
-R (red)
To S video
output
Antenna cable (not supplied)
To …1 or 2
(video input)
Audio/Video cable
(not supplied)
S video cable
(not supplied)
: Signal flow
To
(S video input)
To antenna
output
To ˘
(antenna)
or
: Signal flow
Antenna cable (not supplied)
Antenna cable (not supplied)
Rear of TV
Rear of TV
VIDEO
VIDEO IN
VIDEO OUT
AUDIO
WOOFER
(8Ω)

– 9 –
KV-XF25M50/XF25M80
RM-954
5
Using Your New TV
Using Your New TV
Front of TV
Notes
• If you connect a monaural VCR, connect the yellow plug to (the yellow
jack) and the black plug to -L (MONO) (the white jack).
• If you connect a VCR to the ˘(antenna) terminal, preset the signal
output from the VCR to the program number 0 on the TV.
• If both (S video input) and …1 (video input) at the rear of your TV
are input at the same time, the (S video input) is automatically
selected. To view …1 (video input), disconnect the S video cable.
• When no signal is input to the connected video equipment, the TV screen
becomes blue.
Step 2
Insert the batteries
into the remote
Note
• Do not use old batteries nor use different types of batteries together.
Step 3
Preset the channels automatically
Tips
• If you want to stop the automatic channel presetting, press MENU twice.
• If your TV has preset an unwanted channel or cannot preset a particular
channel, then preset your TV manually (see page 21 and 22).
Note
• During automatic channel presetting, your TV screen will indicate “B/G”,
“I”, “D/K” or “M” for the TV system (TV SYS).
Now You Are Ready. . .
To watch your TV, see page 8.
1
2
AUTO
PROGR
1
ONE-PUSH AUTOMATIC PROGRAMMING
ONE-PUSHAUTOMATICPROGRAMMING
PROGR
6Using Your New TV
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 picture of the connected equipment, see page 9.
Connecting a camcorder/video game equipment
using the …(video input) jacks
Notes
• You can also connect video equipment to the …1 or 2 (video input) jacks
at the rear of your TV.
• If both (S video input) and …3 (video input) at the front of your TV
are input at the same time, the (S video input) is automatically
selected. To view …3 (video input), disconnect the S video cable.
Connecting audio/video equipment using the Ú
(monitor output) jacks
Note
• When connecting a monaural VCR, connect the yellow plug to (the
yellow jack) and the black plug to -L (MONO) (the white jack).
To S video output
Front of TV
Camcorder
Video game
equipment
To video and
audio outputs
: Signal flow
To
(S video
input)
To … 3
(video input)
or
Audio/Video cable (not supplied)
S video cable (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
To Ú
(monitor
output)
Antenna cable (not supplied)
Audio/Video cable
(not supplied)
or
WOOFER
(8Ω)
3
(MONO)

– 10 –
KV-XF25M50/XF25M80
RM-954
8Using Your New TV
Watching the TV
This section explains functions used
while watching TV. Most operations can
be done using the remote.
1
Press Uto turn on the TV.
When the TV is in the
standby mode (the u
indicator on the TV is lit
red), press uon the remote
or PROGR +/– on the TV.
2
Press PROGR +/– or
number buttons to select
the TV program.
For double digit numbers,
press ÷, then the number
(e.g., for 25, press ÷, then
2 and 5).
3
Press .+/– to adjust the
volume.
¤
u
…
;
Number buttons
JUMP
.+/–
PROGR +/–
MENU
+/–/ENTER
or
uindicator
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
123
456
78
0
-/--
9
7
Using Your New TV
Using Your New TV
Securing the TV
To prevent the TV from falling, secure the TV using one of the following methods:
A
With the supplied screws, attach the band to the TV stand and to the rear of
the TV using the provided hole.
or
B
Put the cord or chain through the clamps to secure the TV against a wall or
pillar.
Note
• Use only the supplied screws. Use of other screws may damage the TV.
20
mm
AB
3.8 mm
or

– 11 –
KV-XF25M50/XF25M80
RM-954
9
Using Your New TV
Using Your New TV
To
Turn off temporarily
Turn off completely
Mute the sound
Watch the video input
(VCR, camcorder, etc.)
Jump back to the previous channel
Display the on-screen information*
* The picture, sound, and either the program number or video mode are
displayed. The on-screen display for the picture and sound information
disappears after about 3 seconds.
Changing the menu language
You can change the menu language as well as the on-screen language.
For details on how to use the menu, see “How to use the menu” on page 15.
Do this
Press u. The
u indicator on the TV lights up red.
Press Uon the TV.
Press ¤.
Press …to select “VIDEO 1”, “VIDEO 2” and
“VIDEO 3”.
To return to the TV program, press ;.
Press JUMP.
Press .
Additional tasks
1
Press MENU.
2
Press + or – to select the
SET UP icon ( ), then
press ENTER.
3
Make sure “LANGUAGE/ ”
is selected, then press ENTER.
4
Press + or – to select
“”, then press ENTER.
The menu language
changes to Arabic.
To return to the normal screen
Press MENU.
MENU
ENTER
ENTER
ENTER
+
continued
10 Using Your New TV
Setting the Wake Up timer
1
Press until the
desired period of time
appears.
The Wake Up timer starts
immediately after you have
set it.
2
Select the TV program or video mode you want to display when you wake
up.
3
Press uor set the Sleep timer if you want the TV to turn off automatically.
The indicator on the TV lights up orange.
To cancel the Wake Up timer
Press until “WAKE UP TIMER: OFF” appears or turn off the
TV’s main power.
Note
• 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 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 of time
appears.
The Sleep timer starts
immediately after you have
set it.
To cancel the Sleep timer
Press until “SLEEP TIMER: OFF” appears or turn the TV off.
WAKE UP TIMER:10M
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
Watching the TV (continued)

– 12 –
KV-XF25M50/XF25M80
RM-954
12 Advanced Operations
1
Press FAVORITE.
2
Press the number button
from 1 to 6 to select the
desired channel.
Tip
• To program your favorite channels, see “Programming your favorite
channels” on page 18.
Viewing your
favorite channels
You can display and select six of your
favorite channels directly from your TV
screen.
Number buttons
FAVORITE
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
FAVORITE
123
456
1
11
Advanced Operations
Advanced Operations
Selecting the
picture and sound
modes
You can select picture and sound modes
and adjust the setting to your preference
in PERSONAL option.
Selecting 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.
PERSONAL receive the last adjusted picture setting from the ADJUST
option in the A/V CONTROLmenu (see page 17).
Selecting 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 tones.
DRAMA listen to sound that emphasizes voice and high tones.
SOFT receive soft sound.
PERSONAL receive the last adjusted sound setting from theADJUST option
in the A/V CONTROLmenu (see page 17).
Tip
• You can also set the picture and sound modes using the menu (see
“Changing the A/V CONTROLsetting” on page 16).
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
PERSONAL
STANDARD
SOFT
DYNAMIC
PIC MODE
≥ DYNAMIC
≥ DRAMA
≥ SOFT ≥ PERSONAL
SOUND
MODE
SOUND MODE
PIC MODE
Advanced Operations

– 13 –
KV-XF25M50/XF25M80
RM-954
13
Advanced Operations
Select To
HIGH listen to sound that spreads out over a large area, giving the feeling
of being at a concert hall.
LOW listen to the sound that gives the feeling of being at a live concert.
OFF turn off the surround sound.
The surround of your TV is categorized as TruSurround.
TM
is a trademark of SRS Labs, Inc. SRS and the SRS symbol are
registered trademarks of SRS Labs, Inc. in the United States and selected foreign
countries. SRS and TruSurround are incorporated under license from SRS Labs,
Inc. and are protected under United States Patent Nos. 4,748,669 and 4,841,572
with numerous additional issued and pending foreign patents.
Press SURROUND
repeatedly until you
receive the desired
surround sound.
Listening with
surround sound
The surround feature enables you to
enjoy the sound effects of a concert hall
or movie theater.
SURROUND
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
SURROUND: LOW
SURROUND: HIGH
SURROUND: OFF
SURROUND
14 Adjusting Your Setup (MENU)
Introducing the menu system
The MENU button lets you open a menu and change the settings of your TV. Here’s
an overview of the menu system.
Return icon
A/V CONTROL icon
SET UP icon
CH PRESET icon
Name of the current
menu
Menu level 3
Menu level 2
Adjusting Your Setup (MENU)
Menu level 1
Level 1 Level 2 Level 3/Function
A/V CONTROL PICTURE MODE Select the picture mode.
DYNAMIC nSTANDARD nSOFT n
PERSONAL nADJUST
ADJUST Adjust the PERSONAL option.
PICTUREnCOLORnBRIGHTnHUEnSHARP
SOUND MODE Select the sound mode.
DYNAMIC nDRAMA nSOFT n
PERSONAL nADJUST
ADJUST Adjust the PERSONAL option.
BASS nTREBLE nBALANCE nBBE *
SURROUND Select the surround mode.
HIGH nLOW nOFF
SET UP LANGUAGE/ Change the menu language.
ENGLISH - (Arabic)
CHILD LOCK Lock the channel independently.
PIC ROTATION Adjust the picture position.
FAVORITE CH
Program favorite channels.
INTELLIGENT VOL Adjust volume automatically.
CH PRESET AUTO PROGRAM Preset channels automatically.
MANUAL PROGRAM Preset channels manually.
SKIP Skip unwanted or unused program positions.
TV SYS Select the TV system.
B/G nI nD/K nM
COL SYS Select the color system.
AUTOnPALn SECAMnNTSC3.58nNTSC4.43
* The BBE is manufactured by Sony Corporation under license from BBE
Sound, Inc. It is covered by U.S. Patent No. 4,638,258 and No. 4,482,866.
The word “BBE” and the BBE symbol are the trademarks of BBE Sound, Inc.

– 14 –
KV-XF25M50/XF25M80
RM-954
15
Adjusting Your Setup (MENU)
How to use the
menu
You can use the buttons on the remote
and on the TV as well to display the
menu and adjust the settings.
1
Press MENU to display the
menu.
2
Press + or – to select the
desired item.
3
Press ENTER to confirm
your option and go to the
next menu level.
Other menu operations
To Press
Adjust the setting value +/–
Return to the previous menu level* ENTER
Cancel the menu MENU
* To return from Menu Level 2 to Level 1, press + or – to select the return
icon ( ), then press ENTER.
Tips
• If more than 60 seconds elapse between entries, the menu screen
disappears.
• You can also use the buttons on the TV for menu operations. ¸+/– work
as + /– on the remote and …works as ENTER on the remote.
+/–/ENTER
MENU
Front of TV
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
MENU
ENTER
+
+
PROGR
ONE-PUSH AUTOMATIC PROGRAMMING
Adjusting Your Setup (MENU)
16 Adjusting Your Setup (MENU)
Changing the A/V
CONTROL setting
The A/V CONTROLmenu allows you
to change the picture and sound
settings.
1
Press MENU.
2
Make sure the A/V
CONTROL icon ( ) is
selected, then press
ENTER.
3
Press + or – to select
either PICTURE MODE,
SOUND MODE or
SURROUND, then press
ENTER.
4
Press + or – to select the
desired option, then press
ENTER.
For Select
PICTURE MODE either DYNAMIC, STANDARD, SOFT, PERSONAL*, or ADJUST.
SOUND MODE either DYNAMIC, DRAMA, SOFT, PERSONAL*, or ADJUST.
SURROUND either HIGH, LOW, or OFF.
* When the PERSONAL mode is selected, the last adjusted picture
and sound settings from the ADJUST option are received (see
next page).
Tip
• For details on the options under “PICTURE MODE”, “SOUND MODE”
and “SURROUND”, see page 11 and 13 respectively.
To return to the normal screen
Press MENU.
+/–/ENTER
MENU
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
ENTER
ENTER
ENTER

– 15 –
KV-XF25M50/XF25M80
RM-954
17
Adjusting Your Setup (MENU)
Adjusting the ADJUST options under PICTURE MODE
1
Press + or – to select the
desired item (e.g.,
COLOR), then press
ENTER.
2
Adjust the value according to the following table, then press ENTER.
For Press – to Press + to
PICTURE decrease picture contrast increase picture contrast
COLOR decrease color intensity increase color intensity
BRIGHT darken the picture brighten the picture
HUE* increase red picture tones increase green picture tones
SHARP soften the picture sharpen the picture
* You can adjust HUE for the NTSC color system only.
3
Repeat the above steps to adjust other items.
The adjusted settings will be received when you select PERSONAL.
Adjusting the ADJUST options under SOUND MODE
1
Press + or – to select the
desired item (e.g., BALANCE),
then press ENTER.
2
Adjust the value according to the following table, then press ENTER.
For Press – to Press + to
BASS decrease the bass increase the bass
TREBLE decrease the treble increase the treble
BALANCE increase the left speaker’s volume
increase the right speaker’s volume
BBE select “HIGH” for higher enhancement of sound clarity;
select “LOW” for lower enhancement of sound clarity;
select “OFF” to turn off the BBE sound
3
Repeat the above steps to adjust other items.
The adjusted settings will be received when you select PERSONAL.
Tip
• For details on the menu system and how to use the menu, refer to
“Introducing the menu system” on page 14 and “How to use the menu”
on page 15.
ENTER
COLOR 80
BALANCE 00
ENTER
18 Adjusting Your Setup (MENU)
Changing the SET
UP setting
The SET UP menu allows you to change
the menu language, lock channels,
adjust the picture position, program
your favorite channels and adjust
volume automatically.
Programming your favorite channels
The FAVORITE CH feature enables you to program up to six
channels for direct selection.
1
Press MENU.
2
Press + or – to select the
SET UP icon ( ), then
press ENTER.
3
Press + or – to select
FAVORITE CH, then press
ENTER twice.
4
Press + or –, or number
buttons to program the
desired channel (e.g.,
PR03), then press ENTER.
5
To continue programming other favorite channels, press + or – and then
press ENTER. After that, repeat step 4.
To return to the normal screen
Press MENU.
MENU
Number buttons
+/–/ENTER
or
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
ENTER
ENTER
ENTER
+
++
+++++++
PRO
R02
:B/G
COL SYS :AUTO
AUTO PROGRAM
M
S
T
ENTER
123
456
78
0
-/--
9
+
++
+++++++
PRO
R02
:B/G
COL SYS :AUTO
AUTO PROGRAM
S
T
+

– 16 –
KV-XF25M50/XF25M80
RM-954
19
Adjusting Your Setup (MENU)
1
Press MENU.
2
Press + or – to select the
SET UP icon ( ), then
press ENTER.
3
Press + or – to select CHILD
LOCK, then press ENTER.
4
Press + or –, or number
buttons to select the
desired channel, then
press ENTER.
5
Press + or – to select ON, then
press ENTER.
The lock symbol ( )
appears on the screen.
To unlock the channel,
select OFF.
6
To continue locking other channels, press ENTER and then repeat step 4 to 5.
To return to the normal screen
Press MENU.
Note
• If you preset a locked channel, that particular channel will be unlocked
automatically (see page 21).
Using the CHILD LOCK feature
You can prevent your children from watching certain channels by
using the CHILD LOCK feature.
or
ENTER
ENTER
ENTER
ENTER
123
456
78
0
-/--
9
ENTER
+
+
+
+
continued
20 Adjusting Your Setup (MENU)
Changing other SET UP menu options
1
Press MENU.
2
Press + or – to select the
SET UP icon ( ), then
press ENTER.
3
Press + or – to select the
desired option (e.g.,
INTELLIGENT VOL), then
press ENTER.
Select To
LANGUAGE Change the menu language (see “Changing the menu
language” on page 9).
CHILD LOCK Prevent children from watching certain channels (see
“Using the CHILD LOCK feature” on page 19).
PIC ROTATION Adjust the picture position when it is not aligned to the
TV screen.
Press + or – to adjust the picture position, then press
ENTER.
FAVORITE CH Program channels for direct selection (see “Programming
your favorite channels” on page 18).
INTELLIGENT VOL Adjust the volume of all TV programs automatically.
Press + or – to select “ON”, then press ENTER.
To turn off the “INTELLIGENT VOL” function, select
“OFF”, then press ENTER.
To return to the normal screen
Press MENU.
Tip
• For details on the menu system and how to use the menu, refer to
“Introducing the menu system” on page 14 and “How to use the menu”
on page 15.
ENTER
ENTER
+
+
ENTER
PIC ROTATION
Changing the SET UP setting (continued)

– 17 –
KV-XF25M50/XF25M80
RM-954
21
Adjusting Your Setup (MENU)
Changing the
Channel Preset
(CH PRESET)
setting
The CH PRESET menu allows you to
adjust the setup of your TV. For
example, you can receive a channel with
a weak signal that fails to be tuned in by
automatic presetting.
Presetting channels manually
1
Press MENU.
2
Press + or – to select the
CH PRESET icon ( ), then
press ENTER.
3
Press + or – to select
MANUAL PROGRAM, then
press ENTER.
4
Select the program
number to which you
want to preset a channel.
(1) Make sure “PR” is
selected , then press
ENTER.
(2) Press + or – until the
program number you
want to preset (e.g.,
program number 10)
appears on the menu,
then press ENTER.
+/–/ENTER
MENU
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
ENTER
ENTER
+
+
++++
ENTER
+
+ +
ENTER
+
+ +
continued
22 Adjusting Your Setup (MENU)
Changing the Channel Preset (CH PRESET) setting (continued)
5
Select the desired
channel.
(1) Press + or – to select
either VHF LOW, VHF
HIGH or UHF, then
press ENTER.
(2) Press + or – until the
desired channel
picture appears on
the TV screen, then
press ENTER.
6
If the sound of the
desired channel is
abnormal, select the
appropriate TV system.
(1) Press + or – to select
TV SYS, then press
ENTER.
(2) Press + or – until the
sound becomes
normal (e.g., M), then
press ENTER.
ENTER
ENTER
+
+ +
ENTER
ENTER
+
++
+
+ +
+

– 18 –
KV-XF25M50/XF25M80
RM-954
23
Adjusting Your Setup (MENU)
7
If you are not satisfied
with the picture and
sound quality, you may
improve them by using
fine tuning.
(1) Press + or – to select
FINE, then press
ENTER.
(2) Press + or – to select
MANUAL, then press
ENTER.
(3) Press + or – until the
picture and sound
quality are optimal,
then press ENTER.
The + or – icon on the
menu flashes while
tuning.
To return to the normal screen
Press MENU.
Note
• The TV system (TV SYS) and the fine tuning (FINE) settings are
memorized for each program number.
ENTER
ENTER
ENTER
+
+ +
+
+ +
+
continued
24 Adjusting Your Setup (MENU)
Changing other CH PRESET menu options
1
Press MENU.
2
Press + or – to select the
CH PRESET icon ( ), then
press ENTER.
3
Press + or – to select the
desired option (e.g., SKIP),
then press ENTER.
Select
AUTO PROGRAM
MANUAL PROGRAM
TV SYS
COL SYS
SKIP
Tip
• For details on the menu system and how to use the menu, refer to
“Introducing the menu system” on page 14 and “How to use the menu”
on page 15.
Note
• If you preset a locked channel, that particular channel will be unlocked
automatically (see page 19).
To
preset channels automatically.
preset channels manually. See “Presetting channels
manually” on page 21 and 22.
select the TV system. See “Presetting channels manually”
on page 21 and 22.
select the color system. Normally, set this to “AUTO”.
skip unwanted or unused program numbers.
1 Press + or – until the unused or unwanted program
number appears, then press ENTER.
2 Press + or – to select “ON”, then press ENTER.
To put the skipped program number back on, select
“OFF”, then press ENTER.
ENTER
ENTER
+
+
Changing the Channel Preset (CH PRESET) setting (continued)

– 19 –
KV-XF25M50/XF25M80
RM-954
25
Additional Information
Additional Information
Self-diagnosis function
Your TV is equipped with a self-diagnosis function. If there is a
problem with your TV, the
u
indicator flashes red. The number of
times the
u indicator flashes indicates the possible causes.
1
Check that the u indicator flashes red a number of times between 3-second
intervals.
2
Count the number of times the
u indicator flashes.
3
Press U(main power) to turn off your TV.
4
Inform your nearest Sony service center about the number of times the
u
indicator flashes.
Be sure to note the model name and serial number located on the rear of
your TV.
Front of TV
uindicator
Additional Information
26 Additional Information
Troubleshooting
If you find any problem while viewing your TV, please check the following guide. If
any problem persists, contact your Sony dealer .
Possible causeSymptom Solutions
• Check the antenna cable and connection
on the TV, VCR and on the wall.
(page 4)
• Display the CH PRESET menu and
select “MANUAL PROGRAM” to preset
the channel again. (page 21)
• 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 some channels are noisy,
select the channel, then display the CH
PRESET menu and select the appropriate
TV system (TV SYS). (page 22)
• Check the power cord, antenna and the
VCR connections.
• Press u(power).
• Press U(main power) on the TV to turn
off the TV for about five seconds, then
turn it on again.
• 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 (TV SYS)
setting is inappropriate.
• The power cord, antenna
or VCR is not connected.
• The TV is not turned on.
Snowy picture
Noisy sound
Distorted picture
Noisy sound
Good picture
Noisy sound
No picture
No sound

– 20 –
KV-XF25M50/XF25M80
RM-954
27
Additional Information
• Press ¸+ to increase the volume level.
• Press ¤to cancel the muting.
• 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.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Turn off or disconnect the booster if it is
in use.
• Display the A/V CONTROL menu and
select “ADJUST” of PICTURE MODE,
then adjust the COLOR level. (pages 16
and 17)
• Display the CH PRESET menu and
check the color system (COL SYS)
setting (usually set this to AUTO).
(page 24)
• 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 U(main power) on the
TV to turn off the TV for about five
minutes, then turn it on again.
Good picture
No sound
Dotted lines or stripes
Double images or
“ghosts”
No color
Abnormal color patches
• The volume level is too
low.
• The sound is muted.
• 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.
Possible causeSymptom Solutions
continued
28 Additional Information
• Display the SET UP menu and adjust
“PIC ROTATION” so that the picture is
aligned to the TV screen. (page 20)
• Contact your nearest Sony service
center. (page 25)
—
—
Picture slant
The u 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.
Possible causeSymptom Solutions
• The terrestrial magnetism
affects your TV set.
• 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.
Troubleshooting (continued)