Sony KV-XA25M30A, KV-XA29M30A Service manual

REVISION HISTORY

BG3R
CHASSIS
MODEL
KV-XA25M30A KV-XA29M30A
NO. SUFFIX DATE SUPP / CORR DESCRIPTION
1 -01 2002/2 -- 1st. Issue
PA RT NO. : 9-872-279-01
SERVICE MANUAL
BG3R
CHASSIS
MODEL COMMANDER DEST.
KV-XA25M30A KV-XA29M30A
RM-952 South Africa
RM-952 South Africa
3
1
2
6
4
5
9
7
8
JUMP
-/--
0
SOUND
PROGR
MODE
FAVORITE
TV
KV-XA25M30A KV-XA29M30A
TRINITRON
®
COLOR TV
KV-XA25M30A/XA29M30A
RM-952
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, NTSC3.58, NTSC4.43 Stereo/Bilingual system NICAM Stereo/Bilingual B/G, I, D/K;
Channel coverage
B/G VHF: E2 to E12
I UHF: B21 to B68
D/K VHF: C1 to C12, R1 to R12
M VHF: A2 to A13
˘ (Antenna) 75-ohm external terminal
Audio output (Speaker) 5W + 5W
Number of terminal
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
(Component Video)
(S-Video) Input: 1 Y: 1 Vp-p, 75ohms,
2 (Headphone) Output: 1 Stereo minijack
Picture tube 25 in. 29 in.
Tube size (cm) 64 72 Measured diagonally
Screen size (cm) 60 68 Measured diagonally
Dimension (w/h/d, mm) 696 × 513 × 500 772 × 576 × 516
Mass (kg) 38 51

SPECIFICATIONS

A2 Stereo/Bilingual B/G
UHF: E21 to E69 CATV: S01 to S03, S1 to S41
CATV: S01 to S03, S1 to S41
UHF: C13 to C57, R21 to R60 CATV: S01 to S03, S1 to S41, Z1 to Z39
UHF: A14 to A79 CATV: A-8 to A-2, A to W+4, W+6 to W+84
Input: 1 Phono jacks;
sync negative
B : 0.7 Vp-p, 75 ohms
C C
R : 0.7 Vp-p, 75 ohms
Audio : 500 mVrms
unbalanced, sync negative C: 0.286 Vp-p, 75 ohms
Note
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.
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.
– 2 –

TABLE OF CONTENTS

KV-XA25M30A/XA29M30A
RM-952
Section Title Page
SELF DIAGNOSTIC FUNCTION.............................. 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 20
2-2. Speaker Removal .................................................... 20
2-3. Chassis Assy Removal ............................................ 20
2-4. Service Position ...................................................... 20
2-5. Replacement of Parts .............................................. 21
2-5-1. Replacement of Multi Button ...................... 21
2-5-2. Replacement of Light Guide ........................ 21
2-6. J Board and Terminal Bracket Removal ................. 21
2-7. D3 Board Removal.................................................. 21
2-8. H Board Removal.................................................... 21
2-9. A and B9 Boards Removal ..................................... 21
2-10.Picture Tube Removal ............................................. 22
3. ADVANCE OPERATION
3-1. "RESET" Function .................................................. 23
4. SET-UP ADJUSTMENTS
4-1. Beam Landing ......................................................... 24
4-2. Convergence ............................................................ 25
4-3. Focus Adjustment.................................................... 27
4-4. G2 (Screen) and White Balance Adjustments ........ 27
Section Title Page
6. DIAGRAMS
6-1. Block Diagram ........................................................ 35
6-2. Circuit Boards Location .......................................... 36
6-3. Schematic Diagrams ............................................... 37
(1) A Board Schematic Diagram ............................ 39
(2) B9 Board Schematic Diagram .......................... 43
(3) C6 Board Schematic Diagram .......................... 45
(4) H Board Schematic Diagram ............................ 47
(5) J and D3 Boards Schematic Diagram ............... 49
(6) VM1 Board Schematic Diagram....................... 51
6-4. Voltage Measurements ............................................ 53
6-5. Waveforms .............................................................. 59
6-6. Printed Wiring Boards and Parts Location ............. 61
6-7. Semiconductors ....................................................... 66
7. EXPLODED VIEWS
7-1. Picture Tube ............................................................ 68
7-2. Chassis..................................................................... 70
8. ELECTRICAL PARTS LIST .................................... 71
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 28
5-2. Adjustment Method ................................................ 28
5-3. Picture Quality Adjustment .................................... 33
5-4. Deflection Adjustment ............................................ 33
5-5. H-Trapezoid Adjustment......................................... 33
5-6. A Board Ajustment After IC003 (Memory)
Replacement ............................................................ 33
5-7. Picture Distortion Adjustment ................................ 34
– 3 –
KV-XA25M30A/XA29M30A
RM-952

SELF DIAGNOSTIC FUNCTION

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
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 F7601 (B9)
• 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
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.
– 4 –
KV-XA25M30A/XA29M30A
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item Flash Count*
2 times
5 times
Lamp ON 0.3 sec.
Lamp OFF 0.3 sec.
Lamp OFF 3 sec.
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.
+B overcurrent/overvoltage 2 times Vertical deflection stopped
White balance failure 5 times
* One flash count is not used for self-diagnostic.
STANDBY/SLEEP lamp
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 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
SELF DIAGNOSTIC
002 : 000 003 : 000 004 : 000 005 : 001
101 : 000
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
– 5 –
KV-XA25M30A/XA29M30A
RM-952
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.
6. SELF-DIAGNOSTIC CIRCUIT
FROM
CRT
FROM
[+B] Q604 C6
[V] Q509/507
IC301
Y/CHROMA JUNGLE
IK-IN
MP/
18 51
PROTECT
SDA
4635
IC001
SYSTEM
IO-8DAT
O-LED
IO-SDAT
MEMORY
B-DAT
54521
IC003
[+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.)
– 6 –
The operating instruction mentioned here are partial abstracts
2
WARNING
• Dangerously high voltages are present inside the TV.
• Operate the TV only between 110 – 240 V AC.
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 open the cabinet and the rear cover of the TV as high voltages and other hazards are present inside the TV. Refer servicing and disposal of the TV to qualified personnel.
Your TV is recommended for 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 of the TV. Do not install the TV in a confined space, such as a bookcase or built-in cabinet.
For children’s safety, 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 soft cloth. Do not use benzine, thinner, or any other chemicals to clean the TV. Do not scratch the picture tube.
For your own safety, do not touch any part of the TV, the power cord and the antenna cable during lightning storms.
Do not place any objects on the TV.
3
Using Your New TV
Pull the power cord out by the plug. Do not pull the power cord itself. Even if your TV is turned off, it is still connected to the AC power source (mains) as long as the power cord is plugged in. Unplug the TV before moving it or if you are not going to use it for several days.
Install the TV on a stable TV stand and floor which can support the TV set weight. Ensure that the TV stand surface is flat and its area is larger than the bottom area of the TV.
WARNING (continued)
from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remain as in the manual.
SECTION 1

GENERAL

– 7 –
KV-XA25M30A/XA29M30A
RM-952
Using Your New TV
4
Getting Started
Step 1
Connect the antenna
If you wish to connect a VCR, see the Connecting a VCR diagram below.
Using Your New TV
IEC connector (not supplied)
To video and audio outputs
VCR
(yellow)
-L (MONO) (white)
-R (red)
Antenna cable (not supplied)
To antenna output
Rear of TV
Rear of TV
Connecting a VCR
To watch the video input, press t (see page 13).
: Signal flow
12
R
L
Y
C
B
C
R
VIDEO
VIDEO IN
VIDEO OUT
AUDIO
R L
To 8 (antenna)
To t 1 or 2 (video input)
or
Antenna cable (not supplied)
Antenna cable (not supplied)
CAUTION
Do not plug in 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.
To avoid battery leakage and damage to the remote, remove the batteries from the remote if you are not going to use it for several days. If any liquid that leaks from the batteries touches you, immediately wash it away with water.
Audio/Video cable (not supplied)
To S video output
S video cable (not supplied)
To (S video input)
: Signal flow
Using Your New TV
Using Your New TV
5
Step 3
Preset the channels automatically
Tips
If you want to stop automatic channel presetting, press SELECT twice.
If your TV has preset an unwanted channel or cannot preset a particular
channel, then preset your TV manually (see page 10).
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 8 (antenna) terminal, preset the signal
output from the VCR to the program number 0 on the TV.
If both
(S video input) and t 1 (video input) at the rear of your TV
are input at the same time, the
(S video input) is automatically selected. To view the video input to t 1 (video input), disconnect the S video cable.
Do not connect video equipment to the t 2 (video input) jacks at the front and the rear of your TV at the same time; otherwise the picture will not be displayed properly on the screen.
When no signal is input from the connected video equipment, the TV screen becomes blue.
Step 2
Note
Do not use old batteries nor use different types of batteries together.
Insert the batteries into the remote
P
ROGRMENU
AU
TO PRO
GR
L(MO
NO)
2
1
2
1
1
VHF LOW AUTO
Front of TV
KV-XA25M30A/XA29M30A
RM-952
8
Using Your New TV
Using Your New TV
7
Notes
If your DVD player can output interlace and progressive mode signals, select the interlace output when connecting to
(component video input) on your
TV. Your TV can receive either 525i/60Hz or 625i/50Hz interlace signals.
Some DVD player terminals may be labeled differently:
Since the high quality pictures on a DVD disc contain a lot of information, picture noise may appear. In this case, adjust the sharpness (see Adjusting the picture and sound settings on page 16).
Connecting a DVD player using the
(component
video input) jacks
1 Connect R and L under
(component video input) on your TV to the LINE OUT,
AUDIO R and L output connectors on your DVD player.
2 Connect Y, C
B
, and C
R
under
(component video input) on your TV to the
COMPONENT VIDEO OUT Y, C
B
, and C
R
output connectors on your DVD player.
DVD player
To L (white) R (red)
Audio cable (not supplied)
To component video output
Component video cable (not supplied)
To audio output
: Signal flow
To (component video input)
Connect To (on the DVD player)
Y (green) Y C
B
(blue) C
b
, B-Y or P
B
C
R
(red) C
r
, R-Y or P
R
Rear of TV
Connecting a DVD player using the t (video input) jacks
DVD player
Audio/Video cable (not supplied)
(yellow)
-L (MONO) (white)
-R (red)
To t 1 or 2 (video input)
: Signal flow
Rear of TV
VIDEO
R-AUDIO-L
LINE OUT
12
L(MONO)
R
VIDEO
R-AUDIO-L
LINE OUT
Y
COMPONENT VIDEO OUT
S VIDEO OUT
CB C
R
R
L
Y
C
B
C
R
Using Your New TV
6
Connecting optional components
You can connect optional audio/video components, such as a VCR, multi disc player, DVD, camcorder, video game or stereo system.
To watch the video input of the connected equipment, press t (see page 13).
Connecting a camcorder/video game equipment using the t (video input) jacks
Notes
You can also connect video equipment to the t 1 or 2 (video input) jacks at the rear of your TV.
Do not connect video equipment to the t 2 (video input) jacks at the front and the rear of 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
12
L(MONO)
R
R
L
Y
C
B
C
R
PROGRMENU
AUTO PROGR
L(MONO)
2
L (MONO)
R
2
Front of TV
Camcorder
Video game equipment
To video and audio outputs
Rear of TV
To antenna output
To video and audio inputs
Audio system
To audio inputs
VCR
: Signal flow
: Signal flow
To
t
2
(video input)
To T (monitor output)
or
Audio/Video cable (not supplied)
Antenna cable (not supplied)
Audio/Video cable (not supplied)
or
(yellow)
-L (MONO)
(white)
-R (red)
Note
If you select DVD on your TV scr
een, no signal will be output at the T
(monitor output) jacks (see page 13).
9
KV-XA25M30A/XA29M30A
RM-952
Using Your New TV
Using Your New TV
9
Presetting channels
You can preset up to 100 TV channels in numerical sequence from program number 1 using the remote and the buttons on your TV as well.
Presetting channels automatically
1
Press ! to turn on the TV.
2
Press AUTO PROGR.
To preset channels automatically from a specified program number
(1) Press SELECT until
AUT
O PROGRAM appears.
(2) Press + or – to enter the AUT
O PROGRAM mode.
The on-screen display will start flashing.
(3) Press PROGR +/– or the number buttons until the desir
ed program number
appears.
(4) Press + or – to start presetting channels automatically.
TV
1
2
3
4
6
7
8
9
-/--
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
?/1
Number buttons
SELECT
2 +/–
PROGR +/–
+ or –
PIC MODE
VHF
LOW
AUTO
L(MONO) R
2
PROGRMENU
AUTO PROGR
AUTO
PROGR
continued
Using Your New TV
8
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
A
B
3.8mm
or
10
KV-XA25M30A/XA29M30A
RM-952
Using Your New TV
10
Presetting channels (continued)
Presetting channels manually
1
Press SELECT until “MANUAL PROGRAM” appears.
2
Press + or – to enter the “MANUAL PROGRAM” mode.
3
Press PROGR +/– or the number buttons until the desired program number appears.
4
Press + or – until the desired channel picture appears.
5
Press SELECT to exit the “MANUAL PROGRAM” mode.
To change the TV system setting
If the picture or sound is abnormal when receiving programs through the
8
(antenna)
terminal
(1) Press SELECT until
TV SYS appears.
(2) Press + or – to select the appropriate
TV system until the picture or sound quality is optimal.
B/G
ID/K
M
VHF
LOW
B/G
TV SYS: B/G
MANUAL PROGRAM
or
1
2
3
4
5
6
7
8
0
-/--
9
PROGR
SELECT
1
SELECT
Using Your New TV
Using Your New TV
11
To change the color system setting
If 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 AUT
O.
Skipping program numbers
1
Press PROGR +/
– or the number buttons until the unused or unwanted
program number appears.
2
Press SELECT until
MANUAL PROGRAM
appears.
3
Press + or to enter the MANUAL PROGRAM
mode.
4
Press PIC MODE.
5
Press SELECT to exit the
MANUAL PROGRAM
mode.
Note
To restore the skipped program number 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 fine tuning (FINE) function may help to reduce the following problems: double images and lines moving across the TV screen.
You can use the fine tuning function as below:
(1) Select the program number you want to adjust. (2) Press SELECT until
MANUAL
PROGRAM appears.
(3) Press + or – to enter the “MANUAL
PROGRAM mode.
(4) Press
to display FINE on the scr
een.
(5) Press + or – continuously until the above problems are minimized.
The + or – icon on the screen flashes while tuning.
(6) Press SELECT to exit the
MANUAL
PROGRAM mode.
COLOR SYS: AUTO
AUTO
PAL SECAM
NTSC 3.58NTSC 4.43
11
KV-XA25M30A/XA29M30A
RM-952
KV-XA25M30A/XA29M30A
Using Your New TV
12
Watching the TV
This section explains functions used while watching the TV. Most operations can be done using the remote.
1
Press ! 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.
2
Press PROGR +/
– or the number buttons to select the program number.
For double digit numbers, press -, then the number (e.g., for 25, press -, then 2 and 5).
3
Press 2 +/– to adjust the volume.
%
?/1
t
a
Number buttons
SELECT
2
+/–
PROGR +/–
+ or –
JUMP
or
PROGRMENU
AUTO PROGR
L(MONO)
2
PROGRMENU
AUTO
PROGR
TV
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-/--
1
indicator
1
2
3
4
5
6
7
8
0
-/--
9
PROGR
Using Your New TV
Using Your New TV
13
To
Turn off temporarily
Turn off completely
Mute the sound
Watch the video input (VCR, camcorder, etc.)
Jump back to the previous program number
Display the on-screen information*
Adjust the volume of all program numbers automatically
Adjust the picture position when it is not aligned to the TV screen
Press
?/1. The 1 indicator on the TV lights up red. ! on the TV. %.
t to select “VIDEO 1 or VIDEO 2 or DVD. To return to the TV program, press a or t on the TV.
JUMP.
.
SELECT repeatedly until
INTELLIGENT VOL
appears, then press + or – to select “ON”. To cancel, select “OFF”.
SELECT repeatedly until
PIC ROT
ATION appears, then press + or – to adjust the alignment of the picture position.
The
or
icon on the screen flashes while
adjusting.
Additional tasks
* The picture, sound, and either the program number or video input are
displayed. The on-screen display for the picture and sound information
disappears after about three seconds.
PIC ROTATION
continued
RM-952
12
Using Your New TV
14
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 program number or video input you want to display when you wake up.
3
Press ?/1 or set the Sleep timer if you want the TV to turn off automatically.
The
indicator on the TV lights up orange.
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)
Advanced Operations
15
Advanced Operations
SOUND MODE
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 effect 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 view high contrast pictures.
STANDARD view normal contrast pictures.
SOFT view 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 listen to soft sound.
PIC MODE
SELECT
+ or –
TV
0
SOUND
MODE
FAVORITE
PROGR
STANDARDDYNAMIC
SOFT
PIC MODE
DYNAMIC
DRAMA
SOFT
SOUND
MODE
Advanced Operations
continued
13
KV-XA25M30A/XA29M30A
RM-952
Advanced Operations
16
Adjusting the picture and sound settings
1
Press SELECT until the desired setting appears.
Each time you press SELECT, the setting item will change as follows:
2
Press + or – to adjust the item.
3
To adjust other items, repeat steps 1 to 2.
* HUE can be adjusted for 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.
Selecting the wide mode
1
Press SELECT repeatedly until WIDE MODE appears.
2
Press + or to selectON”.
Select To
ON change the picture size when receiving wide mode (16:9) picture
signal.
OFF turn off the wide mode.
PICTURE COLOR
BRIGHT
HUE*
BALANCE TREBLE
BASS
SHARP
PICTURE
60
SELECT
WIDE MODE: OFF
SELECT
OFF
ON
Customizing the picture and sound (continued)
Advanced Operations
17
SURROUND: MOVIE
SELECT
MUSIC
MOVIE
OFF
Selecting the surround mode
1
Press SELECT repeatedly until SURROUND appears.
2
Press + or – to select the desired surround sound.
Select To
MOVIE listen to sound that spreads out over a large area, giving the feeling
of being at a movie theatre.
MUSIC listen to the sound that gives the feeling of being at a live concert.
OFF turn off the surround sound.
14
KV-XA25M30A/XA29M30A
RM-952
Advanced Operations
18
Viewing your favorite channels
You can display six of your favorite channels for quick and easy selection. You can program the favorite channel as well.
Selecting a favorite channel
1
Press FAVORITE.
2
Press the number button from 1 to 6 to select the desired favorite channel.
When you use the
F
AVORITE CH
feature for the first time, six preset channels will appear.
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-/--
FAVORITE
+ or –
PROGR +/–
Number buttons
or
SELECT
FAVORITE CH SETUP :
FAVORITE CH SETUP :
1
2
3
4
5
6
7
8
0
-/--
9
PROGR
8
1
2
3
4
5
6
1
FAVORITE
FAVORITE CH
1PR01 2 PR02 3PR03 4PR04 5 PR05 6PR06
SELECT
Programming the favorite channel
1
Press PROGR +/
– or number buttons to select the program number you want to program (e.g. program number 8).
2
Press SELECT until
FAVORITE CH SETUP
appears.
3
Press + or – to select the favorite channel you want to program (e.g. 3).
4
Press SELECT.
The selected favorite channel (e.g.,3) turns red for about one second.
5
To program other favorite channels, repeat steps 1 to 4.
Advanced Operations
19
Blocking the channels (CHILD LOCK)
You can lock some program numbers to prevent children from watching certain channels by using the buttons on the remote control.
1
Select the program number you want to lock.
2
Press SELECT until
CHILD LOCK appears on the screen.
3
Press + or to selectON”.
The
symbol appears on
the screen.
To cancel, press + or – to select OFF. The symbol disappears from the screen.
Note
If you preset a locked program number, that particular program number will be unlocked automatically.
TV
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-/--
SELECT
+ or –
CHILD LOCK: OFF
SELECT
CHILD LOCK: ON
1
15
KV-XA25M30A/XA29M30A
RM-952
Advanced Operations
20
Broadcasting On-screen display (Selected sound)
NICAM stereo
NICAM bilingual
NICAM monaural
Enjoying stereo or bilingual programs
You can enjoy stereo sound or bilingual programs of NICAM and A2 stereo systems.
Press A/B repeatedly until you receive the sound you want.
The on-screen display changes to show the selected sound.
The
indicator on the TV lights up red when receiving any stereo or bilingual program.
When receiving a NICAM program
NICAM
NICAM
MONO
(Stereo sound)
(Regular sound)
NICAM
MAIN
MONO
(Main sound)
(Regular sound)
NICAM
SUB
(Sub sound)
NICAM
MAIN
MONO
(Main sound)
(Regular sound)
A/B
indicator
PROGRMENU
AUTO PROGR
L(MONO)
2
TV
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-/--
Advanced Operations
21
When receiving an A2 program
Notes
If the signal is very weak, the sound becomes monaural automatically.
If the stereo sound is noisy when receiving a NICAM program, selectMONO. The sound becomes monaural, but the noise is reduced.
If the sound is distorted when receiving a monaural program through the 8 (antenna) terminal
Press A/B repeatedly until MONO appears on the scr
een.
To cancel the monaural sound setting, press A/B again until AUTO appears on the screen.
Notes
The MONO or AUT
O setting is memorized for each program
number.
You cannot receive stereo broadcast signal when the TV is in the
MONO
setting. Normally set the TV to
AUT
O.
Broadcasting On-screen display (Selected sound)
A2 stereo
A2 bilingual
STEREO
MONO
(Stereo sound)
(Regular sound)
MONO
AUTO
MAIN
SUB
(Main sound)
(Sub sound)
16
KV-XA25M30A/XA29M30A
RM-952
22
Additional Information
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 several times between three 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
Additional Information
1
indicator
PROGRMENU
AUTO PROGR
L(MONO)
2
Additional Information
23
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.
4
10
9
10
20
4
12
12
continued
Additional Information
Page
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 channels, then press A/B to select the main sound.
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.
17
KV-XA25M30A/XA29M30A
RM-952
KV-XA25M30A/XA29M30A
24
Additional Information
Troubleshooting (continued)
Possible cause
Symptom
Solutions
Good picture
No sound
Dotted lines or stripes
Double images or ghosts
No color
Abnormal color patches
TV cannot receive stereo broadcast signal
Page
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 earths magnetic field may affect the TV.
The stereo reception setting is inappropriate.
Press 2 + 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.
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 15 minutes, then turn it on again.
Press A/B until AUTO appears on the screen.
12
13
11
16
11
20
Additional Information
25
Possible cause
Symptom
Solutions
4
20
13
11
22
Page
Connection is loose or the cable is damaged.
The antenna direction is inappropriate.
Broadcast signal has a transmission problem.
The magnetic disturbance from external speakers or other equipment, or the direction of the earths 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 TVs demagnetizing function is working. This does not indicate a malfunction.
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.
Keep external speakers or other electrical
equipment away from the TV.
Press SELECT until
PIC ROT
ATION appears on the screen, then press + or – to adjust the picture position until it is optimal.
Use the fine tuning (FINE) function.
Contact your nearest Sony service center.
Stereo broadcast sound switches on and off or is distorted.
or
The sound switches between monaural and stereo frequently.
Picture slant
Lines moving across the TV screen.
The
1
indicator on your TV flashes red several times between three second intervals.
TV cabinet creaks.
A boom sound is heard when the TV is turned on.
Good m
orning!
RM-952
18
26
Additional Information
Overview of controls
TV front panel
L (MONO)
R
2
PROGRSELECT
AUTO
PROGR
PROGRMENU
AUTO PROGR
L(MONO)
2
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 +/–
! 2 +/– 1
t
i
Additional Information
27
Remote Control
TV
1
2
3
4
6
7
8
9
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
-/--
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
PageButton Function
SELECT +/– PROGR +/– 0 – 9, -/--
2 +/– ?/1
t a
%
JUMP
Timer operations
PIC MODE SOUND MODE FAVORITE Stereo/bilingual operations
A/B
Teletext operations
x (red, green,
yellow, blue)
10 10 12 12 12 12
13 13 13 13 13
14 14 15 15 18
20
Select the desired item. Adjust value. Select program number. Input numbers. Adjust volume. Turn off temporarily or turn on
the TV. Select TV or video input. Display the TV program. Mute the sound. Display on-screen information. Jump to previous program
number.
Set TV to turn on automatically. Set TV to turn off automatically. Select picture mode. Select sound mode. Display favorite channels.
Select stereo/bilingual mode.
Not function for your TV.
19
KV-XA25M30A/XA29M30A
RM-952
SECTION 2
1 One screw (+BVTP 4 x16)
2 Two screws washer head
(+P4 x16)
2 Three screws (+BVTP 4 × 16)
1 Eight screws (+BVTP 4 × 16)
3 Rear Cover
3 Eight screws
(+BVTP 4 × 16)
2 Rear cover
1 Four screws
(+BVTP 4 × 16)

DISASSEMBLY

KV-XA25M30A/XA29M30A
2-1. REAR COVER REMOVAL
(KV-XA25M30A)
– 20 –
2-3. CHASSIS ASSY REMOVAL
(KV-XA29M30A)
2-4. SERVICE POSITION
(KV-XA29M30A)
2-2. SPEAKER REMOVAL
RM-952
(KV-XA25M30A)
Note:
Undress necessary wires that creates tension while placing the chassis into Service Position.
2-5. REPLACEMENT OF PARTS
One screw (+BVTP 3 × 12)
1 Push the claw to direction of arrow and remove
2 Spring compression
3 Power Button
One screw (+BVTP 4
×
16)
6 Two claws
5 Terminal bracket
1
J Board
4
Two screws (+BVTP 3
×
12)
2
Two screws
3
1 Three connectors
2 One claw
3 D3 board
3 Two connectors
4 One screw (+BVTAP 3
× 12)
1 Two connectors
4 Four claws
5 H Board
2 Two connectors
4 B9 Board
5 A Board
1 Three screws
(+BVTAP 3 × 12)
2 Two screws (+BVTAP 3 × 12)
For replacement of the Multi Button and Light Guide, unscrew them, exchange with the new parts, and fix them with screws (+BVTP) respectively.
2-6. J BOARD AND TERMINAL BRACKET
REMOVAL
2-5-1. REPLACEMENT OF MULTI BUTTON
21
2-7. D3 BOARD REMOVAL (KV-XA29M30A)
2-5-2. REPLACEMENT OF LIGHT GUIDE
2-8. H BOARD REMOVAL
2-9. A AND B9 BOARDS REMOVAL
KV-XA25M30A/XA29M30A
RM-952
KV-XA25M30A/XA29M30A
Anode button
a
a
b
b
c
Four DGC clips
!™
DGC band
!∞ Demagnetic coil
4 Two screws
(washer head) (+P 4 × 16)
Two screws
(Tapping)
5 Speaker
(15 × 6.5cm)
3 Speaker
(15 × 6.5cm)
7 Tension
spring
!• Chassis assy
8 Deflection
yoke
9 VM1 Board
0 C6 Board
6 Anode cap
Picture tube
CRT (Top,right) Support Assy (KV-XA29M30A only)
CRT (Top,left) Support Assy (KV-XA29M30A only)
1 Cushion
Two screws (Tapping)
2 Two screws
(washer head) (+P 4 × 16)
Holder DGC
CushionDGC
Cushion DGC
Two screws (+BVTP 4 × 16)
Two screws (+BVTP 4 × 16)
Two screws (+BVTP 4 × 16)
Two screws (+BVTP 4 × 16)
Tweeter Sheet
Tweeter Sheet
2-10. PICTURE TUBE REMOVAL
Note:
– 22 –
The picture tube for South Africa model is upside down, and the position for the anode cap and tension spring are changed accordingly.
REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of the picture tube and
the anode cap to the metal chassis, CRT shield or carbon paint on the CRT.
RM-952
REMOVING PROCEDURES
1 Turn up one side of the rubber cap in the direction indicated by the arrow a.
2 Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.
3 When one side of the rubber cap is separated from the anode button, the anode-cap
can be removed by turning up the rubber cap and pulling it up in the direction of the arrow c.
HOW TO HANDLE AN ANODE-CAP
1 Do not damage the surface of anode-caps with sharp shaped objects. 2 Do not press the rubber too hard so as not to damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built into the rubber.
3 Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the rubber.
KV-XA25M30A/XA29M30A
SECTION 3
ADVANCE OPERATION
3-1. "RESET" FUNCTION
1. Purpose
If a customer faces some setting problem that cannot be solved, using the "RESET" function some items will be reset to its original setting (shipment condition)
2. How to Operate
The way to access to the "RESET" Function:-
a) By pressing "MENU" button or "SELECT" button (for non-menu models) on the Front Key Input
and hold it down for 5 seconds.
3. Subsequent of Operation
Sequential to the resetting operation (either methods being used in No. 2), TV set would shut down once and automatically turn on again. The power-off duration is expected to be about 500msec. An OSD message, "RESET" tentatively will be displayed for 10 sec after IK status gets stable. As a result, some items will be reset to an initial condition (shipment condition) wheareas some other remains at the last selection by user.
RM-952
Items that remains at the last selection by user
Program No., Favourite CH Setup, PIC rotation,
OSD Language, Fine tuning, TV System, Skip
Reset Items
Video input RF Volume 30 Picture mode DYNAMIC Sound mode DYNAMIC Surround mode OFF Color system(video) AUTO Multi picture(PIP) *1 OFF PIP position *1 Bottom-right Favourite CH mode AUTO OSD recall OFF Intelligent volume OFF ECO mode * OFF Color system(RF) AUTO*
* = only when in RF mode *1= Not used for these models
Antenna sensitivity HIGH* Stereo mode STEREO/NICAM*
Bilingual mode * MAIN*
High-deviation mode AUTO* Child lock OFF* Wide mode OFF Game mode OFF Teletext mode *1 OFF Sleep timer OFF Wake-up timer OFF Sound muting OFF
– 23 –
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