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Trinitron KV-24LS35B
Service Manual
50 pgs11.31 Mb0

Sony Trinitron KV-24LS35B, Trinitron KV-24LS35E, Trinitron KV-24LS35U Service Manual

1
SERVICE MANUAL
FE-2
CHASSIS
MODEL
COMMA NDER DEST CHASSIS NO.
KV-24LS35B
KV-24LS35E
RM-932 ESP SCC-Q53N-A
MODEL
COMMA NDER DEST CHASSIS NO.
KV-24LS35U
RM-932 UK SCC-Q52J-A
2
TABLE OF CONTENTS
Section Title Page Section Title Page
Specifications .................... 3
Connectors .................... 4
Self Diagnostic Software .................... 5
1. GENERAL
Switching On the TV and
Automatically Tuning .................... 6
Introducing the Menu System .................... 7
Menu Guide .................... 7
Teletext .................... 10
Specifications .................... 11
Troubleshooting .................... 11
2. DISASSEMBLY
2-1. Rear Cover Removal .................... 12
2-2. Chassis Removal .................... 12
2-3. A Board PWB Removal .................... 12
2-4. Service Position .................... 12
2-5. Picture Tube Removal .................... 13
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .................... 14
3-2. Convergence .................... 15
3-3. Focus Adjustment .................... 17
3-4. Screen (G2), White Balance .................... 17
4. CIRCUIT ADJUSTMENTS
4-1. Electrical Adjustments .................... 18
4-2. Test Mode 1 .................... 20
4-3. Test Mode 2 .................... 20
5. DIAGRAMS
5-1. Block Diagrams (1) .................... 21
Block Diagrams (2) .................... 23
5-2. Circuit Board Location .................... 24
5-3. Schematic Diagrams and
Printed Wiring Boards .................... 24
* C Board .................... 25
* VM Board .................... 27
* F5 Board .................... 30
* H5 Board .................... 31
* D2 Board .................... 32
* D4 Board .................... 33
* A Board .................... 37
5-4. Semiconductors .................... 43
5-5. IC Blocks .................... 45
6. EXPLODED VIEWS
6-1. Chassis .................... 46
6-2. Picture Tube .................... 47
7. ELECTRICAL PARTS LIST .................... 48
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE ANODE CAP.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED TO THE POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
£
ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION
APRES AVOIR DECONNECTE LE CAP DE’LANODE, COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET CELUI DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE.
ATTENTION !!
AFIN D’EVITER TOUT RISQUE D’ELECTROCUTION PROVENANT D’UN CHÁSSIS SOUS TENTION, UN TRANSFORMATEUR D’ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE LE CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á
LA SECURITÈ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE MARQUE £ SUR LES SCHÈMAS DE PRINCIPE, LES VUES EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPOR-
TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
3
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WARNING (UK Models only)
The flexible mains lead is supplied connected to a B.S. 1363 fused plug having a fuse of 5 AMP rating. Should the fuse need to be replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie one that carries the
ASA
T
mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUIT­ABLE FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD BE CUT OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG SEVERED FROM THE MAINS LEAD MUST BE DESTROYED AS A PLUG WITH BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE SOCKET.
When an alternative type of plug is used, it should be fitted with a
5 AMP FUSE, otherwise the circuit should be protected by a 5 AMP FUSE at the distribution board.
How to replace the fuse. Open the fuse compartment with a screwdriver blade and replace the fuse.
FUSE
4
21 pin connector
Connected Not Connected (open) * at 20Hz - 20kHz
Pin No 1 2 4 Signal Signal level
1 Audio output B
(right)
Standard level : 0.5V rms Output impedence : Less than 1kohm*
2
Audio output B (right)
Standard level : 0.5V rms Output impedence : More than 10kohm*
3
Audio output A (left)
Standard level : 0.5V rms Output impedence : Less than 1kohm*
4 Ground (audio) 5 Ground (blue) 6 Audio input A
(left)
Standard level : 0.5V rms Output impedence : More than 10kohm*
7 Blue input 0.7 +/- 3dB, 75 ohms positive
8 Function select
(AV control)
High state (9.5-12V) : Part mode Low state (0-2V) : TV mode Input impedence : More than 10K ohms Input capacitance : Less than 2nF
9 Ground (green) 10 Open 11 Green Green signal : 0.7 +/- 3dB, 75 ohms,
positive
12 Open 13 Ground (re d) 14 Ground (blanking)
15
_ _ Red input 0.7 +/- 3dB, 75 ohms, positive
_ (S signal Chroma
input)
0.3 +/- 3dB, 75 ohms, positive
16 Blanking input
(Ys signal)
High state (1-3V) Low state (0-0.4V) Input impedence : 75 ohms
17 Ground (video
output)
18 Ground (video
input)
19 Video output 1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
20
_ _ Video input 1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
_ Video input
Y (S signal)
1V +/- 3dB, 75ohms, positive sync 0.3V (-3+10dB)
21 Common ground
(plug, shield)
19 17 15 13 11
9 7 5 3
1
20 18 16 14 12 10
8
6 4 2
21
Rear Connection Panel Front Connection Panel
S-Video
socket
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5
FE-2 SELF DIAGNOSTIC SOFTWARE
The identification of errors within the FE-2 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be displayed through the LED (Series of flashes which must be counted) See table 1., non fatal errors are reported using this method. Each time the software detects an error it is stored within the NVM. See Table 2.
Flash Timing Example : e.g. error number 3
StBy LED
ON ON ON
OFF
OFF
Table 1
How to enter into Table 2
1. Turn on the main power switch of the TV set and enter into the‘Stanby Mode’.
2. Press the following sequence of buttons on the Remote Commander.
i+
5
-
(ON SCREEN (DIGIT 5) (VOLUME -) (TV) DISPLAY)
3. The following table will be displayed indicating the error count.
Table 2
Note: To clear the error count data press ‘80’ on the Remote commander.
UNEMRORRE
20E 30E 40E 50E 60E 70E 80E 90E 01E 11E
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2
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6
7
GB
Language
Select Language:
i4Svenska
Norsk
English
Nederlands
Français
Italiano
i
$
OK
If picture slants, please
adjust picture rotation
Not necessary
Adjust now
OK
OK
OK
Switching On the TV and Automatically Tuning
The first time you switch on your TV, a sequence of menu screens appear on the TV ena-
bling you to: 1) choose the language of the menu screen, 2) adjust the picture slant 3) search
and store all available broadcast channels and 4) change the order in which the broadcast
channels appear on the screen.
However, if you need to change any of these settings at a later date, you can do that by
selecting the appropriate option in the (Set Up menu) or by pressing the Auto Start Up
Button on the TV set.
First Time Operation
continued...
1
Connect the TV plug to the mains socket (220-240V AC,
50Hz)
The first time the TV set is connected, it is usually turned
on. If the TV is off, press the on/off button on the TV
set to turn on the TV.
The first time you switch on the TV, a Language menu
displays automatically on the TV screen.
2
Press the or button on the remote control to select
the language, then press the OK button to confirm your
selection. From now on all the menus will appear in the
selected language.
3
Because of the earth’s magnetism, the picture might slant.
The Picture Rotation menu allows you to correct the
picture slants if it is necessary.
a)
If it is not necessary, press or to select Not
necessary and press OK.
b)
If it is necessary, press or to select Adjust now,
then press OK and correct any slant of the picture
between –5 and +5 by pressing or . Finally press
OK to store.
8
MENU
First Time Operation
Your TV is now ready for use
4
The Auto Tuning menu appears on the screen. Press the
OK button to select Yes.
5
The TV starts to automatically search and store all
available broadcast channels for you.
This procedure could take some minutes. Please be
patient and do not press any buttons, otherwise the
automatic tuning will not be completed.
If no channels were found during the auto tuning
process then a new menu appears automatically on
the screen asking you to connect the aerial. Please
connect the aerial (see page 6) and press OK. The
auto tuning process will start again.
6
After all available broadcast channels are captured
and stored, the Programme Sorting menu appears
automatically on the screen enabling you to change
the order in which the broadcast channels appear on
the screen.
a)
If you wish to keep the broadcast channels in the
tuned order, go to step 7.
b)
If you wish to store the broadcast channels in a
different order:
1 Press the or button to select the programme
number with the broadcast channel you wish
to rearrange, then press the button.
2 Press the or button to select the new
programme number position for your selected
broadcast channel, then press .
3 Repeat steps b)1 and b)2 if you wish to change
the order of the other broadcast channels.
7
Press the MENU button to remove the menu from the
screen.
No channel found
Please connect aerial
Confirm
OK
Programme: 01
Channel: C21
Auto Tuning
Searching...
Programme Sorting
Select channel:
Exit:
MENU
Programme:
01 TVE
02 TVE2
03 TV3
04 C33
05 C27
06 C58
OK
Programme Sorting
Select new position:
Exit: MENU
Programme:
01 TVE
02 TVE2
03 TV3
04 C33
05 C27
06 C58 05 C27
OK
Do you want to start
automatic tuning?
Yes
No
OK
OK
OK
OK
OK
#
)
0
3
p
P
·
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.
SECTION 1 GENERAL
7
9
GB
Introducing and Using the Menu System
Your TV uses an on-screen menu system to guide you through the operations. Use the
following buttons on the Remote Control to operate the menu system:
1
Press the MENU button to switch the first level menu on.
Menu System
2
• To highlight the desired menu or option, press or.• To enter to the selected menu or option, press .
• To return to the last menu or option, press
.
• To alter settings of your selected option, press
//or.
• To confirm and store your selection, press OK.
3
Press the MENU button to remove the menu from the screen.
continued...
Menu Guide
PICTURE ADJUSTMENT
The “Picture Adjustment” menu allows you to
alter the picture adjustments.
To do this: after selecting the item you want to
alter press , then press repeatedly / /
or to adjust it and finally press OK to
store the new adjustment.
This menu also allows you to customise the
picture mode based on the programme you are
watching:
Personal (for individual settings).
Live (for live broadcast programmes, DVD
and Digital Set Top Box receivers).
Movie (for films).
Level 1 Level 2 Level 3 / Function
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
• Brightness, Colour and Sharpness can only be altered if “Personal” mode is selected.
• Hue is only available for NTSC colour signal (e.g: USA video tapes).
• Select Reset and press OK to reset the picture to the factory preset levels.
OK
MENU
MENU
10
Menu System
SOUND ADJUSTMENT
The “Sound Adjustment” menu allows you to
alter the sound adjustments.
To do this: after selecting the item you want to
alter, press . then press repeatedly /
/ or to adjust it and finally press OK
to store the new adjustment.
Level 1 Level 2 Level 3 / Function
This menu also contains two submenus as following:
Mode Personal (for individual settings)
Rock
Pop
Jazz
Detail Adjustment Dolby
*
Virtual: Off: Normal.
On: Simulates the sound effect of Dolby
Pro Logic surround.
Auto volume: Off: Volume level changes according
to the broadcast signal.
On: Volume level of the channels will
stay the same, independent of the
broadcast signal (e.g. in the case of
advertisements).
TV Speakers: Off: Sound from external amplifier
connected to the audio outputs on
the rear of the TV set.
On: Sound from the TV set.
• Treble and Bass can only be altered if “Personal” mode is selected.
• Select Reset and press OK to reset the sound to the factory preset levels.
• In case of a bilingual broadcast select Dual Sound and set A for sound channel 1, B for sound channel
2 or Mono for mono channel if available. For a stereo broadcast you can choose Stereo or Mono.
• If you are listening to the TV through headphones, “Dolby Virtual” option will automatically be
switched to “Off”.
• If you switch “Dolby Virtual” to “On”, the “Auto volume” option will automatically be switched to
“Off” and vice versa.
*
This TV has been designed to create the “Dolby Surround” sound effect by simulating the sound
of four speakers with two speakers, when the broadcast audio signal is Dolby Surround encoded.
The sound effect can also be improved by connecting a suitable external amplifier (for details refer
to “Connecting to external audio Equipment” on page 19).
*
Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D
symbol are trademarks of Dolby Laboratories.
continued...
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Sound Adjustment
Mode: Personal
Treble
Bass
Balance
Reset
Dual Sound: Mono
Detail Adjustment
OK
Sound Adjustment
Mode: Personal
Treble
Bass
Balance
Reset
Dual Sound: Mono
Detail Adjustment
OK
8
11
GB
Menu System
SLEEP TIMER
The “Sleep Timer” option in the “Timer” menu
allows you to select a time period for the TV to
switch itself automatically into the standby
mode.
To do this: after selecting the option press ,
then press or to set the time period delay
(max. of 4 hours) and finally press OK to store. • While watching the TV, you can press the
button on the remote control to display the
time remaining.
• One minute before the TV switches itself into
standby mode, the time remaining is displayed on
the TV screen automatically.
ON TIMER
The “On Timer” option in the “Timer” menu
allows you to select a time period for the TV to
switch itself automatically on from standby
mode.
To do this: after selecting the option press ,
then press or to set the time period delay
(max. 12 hours) and press OK to store. Finally
press the standby button
on the remote
control. After the selected length of time the TV
switches on automatically.
• The standby indicator on the TV set flashes
regularly to indicate that “On Timer” is active.
• Any loss of power will cause these settings to be
cleared.
If you have not activated the “On Timer”
option but the indicator on the TV set
flashes, please contact to your nearest
Sony Service Centre.
LANGUAGE
The “Language” option in the “Set Up” menu
allows you to select the language that the
menus are displayed in.
To do this: after selecting the option, press
and then proceed in the same way as in the step
2 of the section “Switching On the TV and Au-
tomatically Tuning”.
Level 1 Level 2 Level 3 / Function
continued...
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Timer
Sleep Timer: Off
On Timer: i Off
OK
Timer
Sleep Timer: Off
On Timer: Off
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Timer
Sleep Timer: Off
On Timer: Off
OK
Timer
Sleep Timer: Off
On Timer: Off
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
12
Menu System
continued...
AUTO TUNING
The “Auto Tuning” option in the “Set Up”
menu allows you to automatically search for
and store all available TV broadcast channels.
To do this: after selecting the option, press
and then proceed in the same way as in TV
steps 4 and 5 of the section “Switching On the
TV and Automatically Tuning”.
PROGRAMME SORTING
The “Programme Sorting” option in the “Set
Up” menu allows you to change the order in
which the broadcast channels appear on the
screen.
To do this: after selecting the option, press
and then proceed in the same way as in step 6 b)
of the section “Switching On the TV and
Automatically Tuning”.
PROGRAMME LABELS
The “Programme Labels” option in the “Set
Up” menu allows you to name a broadcast
channel using up to five characters (letters or
numbers).
To do this:
1 After selecting the option, press , then
press or to select the programme
number with the broadcast channel you wish
to name.
2 Press . With the first element of the Label
column highlighted, press or to select
a letter or number (select “-“ for a blank), then
press to confirm this character. Select the
other four characters in the same way. Finally
press OK to store.
AV PRESET
The “AV Preset” option in the “Set Up” menu
allows you to designate a name to the external
equipment you have connected to the sockets of
this TV.
To do this:
1 After selecting the option, press , then
press or to select the input source you
wish to name (AV1 and AV2 are for the rear
Scarts and AV3 for front connectors). Then
press .
Level 1 Level 2 Level 3 / Function
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
9
13
GB
Menu System
continued...
2 In the label column automatically appears a
label:
a) If you want to use one of the 6 predefined
labels (CABLE, GAME, CAM, DVD,
VIDEO or SAT), press or to select
the desired label and finally press OK to
store.
b) If you want to set a different label, select
Edit and press . Then with the first
element highlighted, press or to
select a letter, number or “-“ for a blank,
then press to confirm this character.
Select the other four characters in the same
way and finally press OK to store.
MANUAL PROGRAMME PRESET
The “Manual Programme Preset” option in the
“Set Up” menu allows you to:
a)
Preset broadcast channels or a video input
source one by one to the programme order of
your choice. To do this:
1 After selecting the ”Manual Programme
Preset” option, press then with
Programme option highlighted press .
Press or to select on which
programme number you want to preset the
broadcast channel (for VCR, select
programme number “0”). Then press .
2 After selecting the Channel option, press .
Then press the number buttons to enter
directly the channel number of the TV
Broadcast or the channel of the VCR signal. If
you do not know the channel number,
press or to search for it. When you
tune the desired channel, press OK twice to
store.
Repeat all the above steps to tune and store more
channels.
Level 1 Level 2 Level 3 / Function
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
14
Menu System
continued...
b)
Label a channel using up to five characters.
To do this: Highlighting the Programme
option, press the PROG +/- button to select
the programme number with the broadcast
channel you wish to name. When the TV
broadcast you want to name appears on the
screen, select the Label option and press .
Next press o
r
to select a letter, number
or “-“ for a blank. Press to confirm this
character. Select the other four characters in
the same way. After selecting all the
characters, press OK twice to store.
c)
Normally the automatic fine tuning (AFT) is
operating, however you can manually fine
tune the TV to obtain a better picture
if the picture is distorted.
To do this: while watching the channel (TV
Broadcast) you wish to fine tune, select the
AFT option and press . Next press
or to adjust the fine tuning between -15
and +15. Finally press OK twice to store.
d)
Skip any unwanted programme numbers
when they are selected with the PROG +/-
buttons.
To do this: Highlighting the Programme
option, press the PROG +/- button to select
the programme number you want to skip.
When the programme you want to skip
appears on the screen, select the Skip option
and press . Next press or to select
Yes. Finally press OK twice to confirm and
store.
To cancel this function afterwards, select “No”
instead of “Yes” in the step above.
Level 1 Level 2 Level 3 / Function
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
10
16
Menu System
AV2 OUTPUT
The “AV2 Output” option in the “Detail Set Up”
menu allows you to select the source to be
output from the Scart connector
:2/q
. You
can record from this Scart any signal coming
from the TV or from external equipment
connected to the Scart connector
:1/
or
front connectors 3 and 3.
If your VCR supports Smartlink, this
procedure is not necessary.
To do this: after selecting the option, press .
Then press or to select the desired
output signal: TV, AV1, AV3, YC3 or AUTO.
If you select “AUTO”, the output signal will always be the same one that is displayed on
the screen.
If you have connected a decoder to the Scart
:2/q
or to a VCR connected to this Scart,
please remember to change back the “AV2 Output” to “AUTO” or “TV” for correct
unscrambling.
RGB CENTRING
When connecting an RGB source, such as a
“PlayStation”, you may need to readjust the
horizontal position of the picture. In that case,
you can readjust it through the “RGB Centring”
option in the “Detail Set Up”.
To do this: while watching an RGB source select
the “RGB Centring” option and press . Then
press or to adjust the centre of the
picture between –10 and +10. Finally press OK
to confirm and store.
PICTURE ROTATION
Because of the earth’s magnetism, the picture
might slant. In this case, you can correct the
picture slant by using the option “Picture
Rotation” in the “Detail Set Up” menu.
To do this: after selecting the option, press .
Then press or to correct any slant of the
picture between -5 and +5 and finally press OK
to store.
Level 1 Level 2 Level 3 / Function
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Detail Set Up
Auto Format
Noise Reduction:
AV2 Output:
RGB Centring:
Picture Rotation:
On
AutoTV0
0
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Detail Set Up
Auto Format
Noise Reduction:
AV2 Output:
RGB Centring:
Picture Rotation:
On
AutoTV0
0
OK
Picture Adjustment
Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset
OK
Set Up
Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up
OK
Detail Set Up
Auto Format
Noise Reduction:
AV2 Output:
RGB Centring:
Picture Rotation:
On
AutoTV0
0
OK
17
GB
Teletext
Teletext is an information service transmitted by most TV stations. The index page of the
teletext service (usually page 100) gives you information on how to use the service. To
operate teletext, use the remote control buttons as indicated below.
Make sure to use a broadcast channel with a strong signal, otherwise teletext errors
may occur.
To Switch On Teletext :
After selecting the TV channel which carries the teletext service you wish
to view, press .
To Select a Teletext page:
Input 3 digits for the page number, using the numbered buttons.
• If you have made a mistake, retype the correct page number.
• If the counter on the screen continues searching, it is because this page is not available. In that case, input another page number
To access the next or preceding page:
Press PROG + ( ) or PROG - ().
To superimpose teletext on to the TV:
Whilst you are viewing teletext, press . Press it again to cancel teletext mode.
To freeze a teletext page:
Some teletext pages have sub-pages which follow on automatically. To stop them, press
/ . Press it again to cancel the freeze.
To reveal concealed information (e.g: answer to a quiz):
Press / . Press it again to conceal the information.
To Switch Off Teletext:
Press .
Fastext
Fastext service lets you access pages with one button push.
While you are in Teletext mode and Fastext is broadcast, a colour coded menu appears at
the bottom of the teletext page. Press the colour button (red, green, yellow or blue) to access
the corresponding page.
Teletext
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
TELETEXT
Index
Programme
News
Sport
Weather
25
153
101
98
11
21
GB
Specifications
Additional Information
TV system: I Colour system:
PAL,
SECAM, NTSC 3.58, 4.43 (only Video In)
Channel Coverage:
I: UHF B21-B69
Picture Tube:
Flat Display FD Trinitron WIDE
24” (approx. 56 cm. measured
diagonally)
Rear Terminals
:1/
21-pin scart connector
(CENELEC standard)
including audio/video
input, RGB input, TV
audio/video output.
:2/q
21-pin Scart connector
(SMARTLINK)
(CENELEC standard)
including audio / video
input, S video input,
selectable audio / video
output and Smartlink
interface.
audio outputs (Left/
Right) - phono jacks
Front Terminals
q
3 S Video input – 4 pin DIN
…3 video input – phono jack
3 audio input – phono jacks
headphones jack
Design and specifications are subject to change without notice.
Ecological Paper- Totally Chlorine Free
Sound Output:
2 x 14 W (music power)
2 x 7 W (RMS)
Power Consumption:
68 W
Standby Power Consumption:
0.54 W
Dimensions (w x h x d) :
Approx. 693 x 441 x 491 mm.
Weight:
28.5 Kg.
Accessories supplied:
1 Remote Control (RM-932)
2 Batteries (IEC designated)
Other features:
• Teletext, Fastext, TOPtext
• Sleep Timer
• On Timer
• Smartlink (direct link between your TV set
and a compatible VCR. For more
information on Smartlink, please refer to
the Instruction Manual of your VCR).
• Dolby Virtual
• Auto Format
22
Troubleshooting
Here are some simple solutions to the problems which may affect the picture and sound.
Additional Information
Problem
No picture (screen is dark) and no
sound.
Poor or no picture (screen is dark),
but good sound.
No picture or no menu information
from equipment connected to the
Scart connector.
Good picture, no sound.
No colour on colour programmes.
Distorted picture when changing
programmes or selecting teletext.
Picture slanted
Noisy picture when viewing a TV
channel.
No unscrambling or unstable picture
whilst viewing a scrambling channel
with a decoder connected through
the Scart connector
:2/q
.
Remote control does not function.
The standby indicator on the TV
flashes even though the “On Timer”
function is not in use.
Solution
•Check the aerial connection.
• Plug the TV in and press the button on the front of
the TV.
•If the standby indicator is on, press
TV
button
on the remote control.
•Using the menu system, select the “Picture
Adjustment” menu and select “Reset” to return to the
factory settings.
•Check that the optional equipment is on and press the
button repeatedly on the remote control until the
correct input symbol is displayed on the screen.
• Press the +/- button on the remote control.
• Check that “TV Speakers” is “On” on the “Sound
Adjustment” menu.
•
Check that headphones are not connected.
• Using the menu system, select the “Picture
Adjustment” menu and select “Reset” to return to
factory settings.
• Turn off any equipment connected to the Scart
connector on the rear of the TV.
• Using the menu system, select the “Picture Rotation”
option in the “Detail Set Up” menu to correct the
picture slant.
• Using the menu system, select the “Manual
Programme Preset” menu and adjust Fine Tuning
(AFT) to obtain better picture reception.
• Using the menu system, select the “Noise Reduction”
option in the “Detail Set Up” menu and select
“Auto” to reduce the noise in the picture.
• Using the menu system, select the “Set Up” menu.
Then enter to “Detail Set Up” option and set “AV2
Output” to “TV”.
• Check that the Media Selector on the remote control is
set according to the device you are using (VCR, TV or
DVD).
• If the remote control does not operate the VCR or DVD
even when the Media Selector has been set correctly.
Enter the necessary code set as explained on “Remote
Control Configuration for VCR/DVD” chapter of this
instruction manual.
• Replace the batteries.
• Contact your nearest Sony service centre.
If you continue to experience problems, have your TV serviced by qualified personnel.
Never open the casing yourself.
12
2-4. Service Position2-3. A Board PWB Removal
SECTION 2 DISASSEMBLY
2-1. Rear Cover Removal
Release the mains power cable from its securing posts. Remove the rear cover fixing screws indicated. Pull the rear cover away from the front beznet.
2-2. Chassis Removal
To remo ve lift the main bracket rear slightly and slide the chassis away from the beznet. Ensure that the interconnecting leads are released from their purse locks to prevent damage being caused.
Place the A Board PWB in the position indicated to carry out servicing.
Release the 5 securing clips located at the side and front of the chassis and slide the PWB clear of the bracket.
Clip.
=>
=> <=
<=
=>
=>
=>
=>
13
Anode button
a
* REMOVING PROCEDURES.
Turn up one side of the rubber cap in the direction indicated by the arrow a
1
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
b
b
c
How to handle the Anode-Cap
1. To prevent damaging the surface of the anode-cap do not use sharp materials.
2. Do not apply too great a pressure on the rubber, as this may cause damage to the anode connector.
3. A metal fitting called a shatter hook terminal is fitted inside the rubber cap.
4. Do not turn the rubber foot over excessively, this may cause damage if the shatter hook sticks out.
Removal of the Anode-Cap
2-5. Picture Tube Removal
WARNING:
BEFORE REMOVING
THE ANODE CAP
High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT coated earth ground strap.
Coated Earth Ground Strap
1. Discharge the anode of the CRT and remo ve the anode cap.
2. Release the EHT lead from its CRT support bracket.
3. Unplug all interconnecting leads from the Deflection yoke, degaussing coils and CR T grounding strap.
4. Remove the C Board from the CR T .
5. Remove the chassis assembly .
6. Loosen the Deflection yoke fixing screw and remove.
7. Remove the Degaussing Coil holders.
8. Place the set with the CRT face do wn on a cushion.
9. Unscrew the four CRT f ixing scre ws [ located on each CRT corner ] and remove the CR T .
10. Remove the Degaussing Coils. Remove the CR T grounding strap and spring tentioners. [T ake care not to handle the CR T by the neck.]
10
8
2
5
6
7
9
4
3
1
14
Purity control corrects this area
Disk magnets or rotatable disk magnets correct these areas (a-d)
Deflection yoke positioning corrects these areas
Disk Magnets
a
cd
b
GREEN
BLUE
RED
Preparation:
1. In order to reduce the influence of geomagnetism on the set’s picture tube, face it in an easterly or westerly direction.
2. Switch on the set’s power and degauss with the degausser .
1. Input an all white signal from the pattern generator. Set the
Contrast and Brightness to normal.
2. Set the pattern generator raster signal to Red.
3. Move the deflection yoke forward and adjust with the
purity control so that the Red is at the centre and the Blue and Green take up equally sized areas on each side of the screen. [See Fig.3-1 - 3-3].
4. Move the deflection yoke backwards and adjust so that the
entire screen becomes Red. [See Fig.3-1]
5. Switch the raster signal to Blue, then to Green and verify
the condition.
6. When the position of the deflection yoke has been
determined, fasten the deflection yoke with the screws.
7. If the beam does not land correctly in all the corners, use a
magnet to correct it. [See Fig.3-4]
• When complete readjustment is necessary or a new picture
tube is installed, carry out the following adjustments.
• Unless there are specif ic instructions to the contrary , carry
out these adjustments with the rated power supply .
• Unless there are specif ic instructions to the contrary , set the
controls and switches to the following settings :
Contrast .................... 80% [or remote control ormal]
Brightness................... 50%
Carry out the adjustments in the following order :
3-1. Beam Landing. 3-2. Convergence. 3-3. Focus. 3-4. White Balance.
Note : Test equipment required.
1. Color bar/pattern generator .
2. Degausser.
3. Oscilloscope.
4. Digital multimeter.
Caution :
High voltages are present on the Deflection yoke terminals
- take care when handling the Deflection yoke whilst carrying out adjustments.
Fig.3-4
Fig. 3-1.
Fig. 3-3.
Fig. 3-2.
Purity
SECTION 3 SET -UP ADJUSTMENTS
3-1. Beam Landing
15
Center dot
R
G
B
R G B
C Board
RV702 (H STAT) H STAT Convergence (on mount side)
H STAT
convergence
control
V.STAT Vertical Static Magnet
4. If the V.STA T magnet is moved in the direction of the (a) and (b) arrows, the Red, Green and Blue points move as
indicated below .
1. [Moving horizontally], adjust the H.ST AT control so that the Red, Green and Blue points are on top of each other at the centre of the screen.
2. [Moving vertically], adjust the V.STAT magnet so that the Red, Green and Blue points are on top of each other at the centre of the screen.
3. If the H.ST AT variable resistor is unable to bring the Red, Green and Blue points together at the centre of the screen, adjust the horizontal convergence with the H.STAT variable resistor and the V.STA T magnet in the manner indicated below. [In this case, the H.ST AT v ariable resistor and the V.STAT magnet influence each other].
The movement of the magnets interact with each other and so the respective dot position should be monitored while carrying out this adjustment. Use the H.ST AT VR to adjust the Red, Green and Blue dots so that they coincide at the centre of the screen (by moving the dots in the horizontal direction).
GBR
GBR
GBR
G
B
R
GBR
G
B
R
3-2. Con vergence
Operation of the BMC (Hexapole) magnet.
Preparation:
• Before starting this adjustment, adjust the focus, horizontal
size and vertical size.
• Minimize the Brightness setting.
• Input a dot pattern from the pattern generator.
Horizontal and Vertical Static Convergence
Fig.3-5
• Tilt the V.ST AT magnet and adjust the static convergence by
opening or closing the V.STA T magnet.
B
G
R
B
G
R
a
a
b
b
a
b
B
G
R
a
a
B
G
R
b
b
B
G
R
a
b
R
G
B
b
a
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