Sony Trinitron KV-28DX30U User manual

1
KV-32DX30U RM-888 UK SCC-Q25J-A
SERVICE MANUAL BE-3E CHASSIS
MODEL COMMANDER DEST CHASSISNO.
KV-28DX30U RM-888 UK SCC-Q25H-A
MODEL COMMANDER DEST CHASSISNO.

2
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Section Title Page Section Title Page
Specifications .................... 3
Connectors .................... 4
Self Diagnostic Software .................... 5
1. GENERALOverview of the Remote Control................... 9
AutomaticallyTuning theTV .................... 9
Finding your video channel .................... 9
Rearranging the TV Channels .................... 10
Adjusting the Picture .................... 10
Adjusting the Sound .................... 11
Setting up Dolby Pro Logic .................... 11
Changing the Screen Mode .................... 12
ManuallyTuning the TV .................... 12
Viewing Standard Teletext .................... 13
ViewingDigitalTeletext .................... 13
Specifications .................... 14
Troubleshooting .................... 14
2. DISASSEMBLY
2-1. Rear Cover Removal .................... 15
2-2. Chassis Removal .................... 15
2-3. N Board Removal .................... 15
2-4. Service Position .................... 16
2-5. A Board Removal .................... 16
2-6. A Extension Board .................... 16
2-7. Side Control Removal .................... 17
2-8. F4 Bracket Removal .................... 17
2-9. F4 and H8 Board Removal .................... 17
2-10. Picture Tube Removal .................... 18
Bottom Plates .................... 19
3. SET-UP ADJUSTMENTS
3-1. BeamLanding .................... 20
3-2. Convergence .................... 21
3-3. Focus, Screen [G2]Adjustment.................... 23
3-4. WhiteBalance .................... 23
4. CIRCUIT ADJUSTMENTS
4-1. ElectricalAdjustments .................... 24
4-2. TT Test Mode .................... 27
4-3. T Test Mode .................... 28
5. DIAGRAMS
5-1. Block Diagram (1) .................... 29
Block Diagram (2) .................... 33
Block Diagram (3) .................... 37
Block Diagram (4) .................... 41
5-2. Circuit BoardLocation .................... 44
5-3. Schematic Diagrams and
Printed Wiring Boards .................... 44
* C Board .................... 45
* D Board .................... 49
* D2 Board .................... 52
* VM Board .................... 54
* H Board .................... 56
* A Board .................... 59
* A2 Board .................... 65
* J Board .................... 70
* D1 Board .................... 71
* H7 Board .................... 74
* F4 Board .................... 76
* H8 Board .................... 76
* N Board .................... 77
5-4. Semiconductors .................... 90
5-5. IC Blocks .................... 93
6. EXPLODEDVIEWS
6-1. Chassis .................... 95
6-2. PictureTube .................... 96
7. ELECTRICAL PARTS LIST .................... 97
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE CARBON PAINTED ON THE CRT, AFTER
REMOVAL OF THE ANODE CAP.
WARNING !!
AN ISOLATION TRANSFORMER MUST 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 COUCHE DE CARBONE PEINTE SUR
LE 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.

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WARNING(UK Modelsonly)
The flexible mains lead is supplied connected to a B.S. 1363 fused plug
having a fuse of 5AMP rating. Should the fuse need to be replaced, use
a 5AMP FUSE approved byASTA to BS 1362, ie one that carries the
ASA
Tmark.
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
5AMP FUSE, otherwise the circuit should be protected by a 5AMP
FUSE at the distribution board.
How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
FUSE

4
4
Connected Not Connected (open) * at 20Hz - 20kHz
Pin No 1 2 3 Signal Signal level
1Audio output B
(right) Standard level : 0.5V rms Output impedence : Less than 1kohm*
2Audio output B (right) Standard level : 0.5V rms Output impedence : More than 10kohm*
3Audio output A (left) Standard level : 0.5V rms Output impedence : Less than 1kohm*
4Ground (audio)
5Ground (blue)
6Audio input A
(left) Standard level : 0.5V rms Output impedence : More than 10kohm*
7Blue input 0.7 +/- 3dB, 75 ohms positive
8Function 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
9Ground (green)
10 Open
11 Green Green signal : 0.7 +/- 3dB, 75 ohms,
positive
12 Open
13 Ground (red)
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)
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BE-3E SELF DIAGNOSTIC SOFTWARE
The errors indicated below can be read using an Error Reader Display (Part Number S-188-900-10) connected to the service connector. Once an
error has been detected it will then be displayed on the two digit error reader. During the power up procedure and during normal run time, the micro’s
self diagnostic procedures monitor for various errors. Errors displayed refer to the table indicated below.

6
Once every main loop (approximately 200ms OSD mode, 50ms text or menu mode), the micro checks the protection pin (pin 66). If the protection
pin is high 6 successive times, a protection error is diagnosed. The protection pin isnot checked during the first 3 - 4 seconds afterAC on.
If this error is diagnosed, the respective NVM register will be updated and the set goes straight into diagnostic standby with 2 flashes - no reset is
attempted.
Protection Error
AKB Error (Error 5)
Time /seconds
0 102030405060708090100
A B C D E F
A. IKR Return first goes high after 12 seconds
B. Micro begins checking IKR Return status 20 seconds after power on
C. Micro detects IKR return=0
D. Micro detects that IKR has been 0 for 10 seconds; NVM counter is incremented and the LED
starts flashing (flashes 5 times, off for 2 seconds, flashes 5 times, etc.)
E. Micro detects that IKR=1; LED continues to flash
F. Micro detects that IKR has been high for 10 seconds; LED stops flashing.
IKR
Return
Once every main loop the micro checks theAKB stability by reading the IKR return from the Jungle IC. IKR=1 means that theAKB is stable,
IKR=0 means that theAKB is unstable. If the AKB status is unstable for 10 seconds, an AKB error is diagnosed.AKB stability is not checked
during the first 20 seconds afterAC switch on.
If this error is diagnosed, the respective NVM register will be updated and the response LED will flash 5 times continually, but the set will not go
into standby mode. If the AKB status becomes stable, and remains stable for 10 seconds, the LED will stop flashing.
If any of these errors are detected,the respective NVM register will be incremented. The software will then carry on with the power up sequence.
Startup Diagnostic Errors (Error 6-18, 27, 29-32)
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7
General IIC Device Run-time Errors (Errors 19-23)
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If any of these errors are detected, the respective NVM register will be incremented and the software will carry on.
In the case of these errors, the ‘device reset’ pin will be held low for 60ms, causing a hardware reset of Compact Text. Following this reset, a longer
timeout will be allowed for the M3L bus to recover. If the error still exists, the NVM register will be incremented and the software will carry on.
In the case, the ‘device reset’ pin will be held low for 60ms, causing a hardware reset of Compact Text. Compact Text will then be re-initialised and
the NVM counter updated. This is the same as for errors 26, 28 and 33 except that the M3L bus timeout is not changed.
For both these errors, the software will refresh the MSP and DSP registers. If the errors still exist, the NVM counter will be incremented, and the
software will carry on.
Compact Text Run-time Errors (Errors 26, 28, 33 & 34)
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MSP and DSP Run-time Errors (Errors 24 & 25)
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8
ERROR DISPLAY MODE
Current Error Code = 00
Error Code Occurrences Error Code Occurrences
22190
3--200
4--210
50220
60230
70240
80254
90265
10 0 27 89
11 0 28 3
12 0 29 0
13 0 30 0
14 0 31 0
15 3 32 0
16 0 33 3
17 0 34 38
18 6
Error Display Mode
Error Display Mode is entered by the following sequence of commands :
Standby -> Information -> Digit 5 -> Volume Down -> TV
This mode will display a special menu, which will list all possible errors and the number of occurrances of each error (0 - 255, as stored in the
NVM). There will also be a display of the current error (00 if no error). This display mode will appear as follows :
Whilst in this mode, the number of occurences of each error can be reset to 0 by following sequence of Sircs commands: Digit 8 -> Digit 0.
‘TT08’ will also reset this NVM data.
This mode can only be exited by switching off the TV.
The Current Error Code can also be read by using a TV Error Reader (IIC slave address 42H). This device simply receives 1 data byte, which is the
error number in binary coded decimal form.

9
9
Overview
Overview of the remote control buttons
RM-888
MENU
PROGR
To temporarily switch off TV Press to temporarily switch off TV. Press again to
switch on from standby mode. To save energy, we
recommend switching off completely when the TV is
not in use.
NOTE: After 15-30 minutes without a TV signal and
without any button being pressed, the TV switches
automatically into standby mode. To select input signal or freeze teletext
Press to select inputs from the TV sockets (see Using
Optional Equipment section). In teletext mode, press
to freeze the displayed page. Press once again to
cancel.
To return to previous channel Press to return to the previous channel you were
watching. Note: This can be done only if you watched
the previous channel for at least 5 seconds.
To display the menu
Press to use the TV menu system. Press again to
remove the menu from the TV screen. To select menu items Use these buttons and the OK button to select the
options available when in the menu system of this TV.
Pressing the OK button in normal TV mode will
display the channel listing table. To change screen format Press to change the size of the screen.
See Teletext section of manual for details.
To select channels Press to select channels.
To mute sound Press to mute TV sound. Press again to
restore the sound.
To reveal on screen information Press to reveal all on-screen indications.
Press again to cancel. In teletext mode,
press to reveal concealed information (e.g.
answers to a quiz) then press again to
cancel.
To select channels
Press the numbered buttons to select
channels.
For double digit programme numbers,
e.g.23, press -/-- first, then the buttons 2 and 3. If you enter an incorrect first digit, select
-/-- button again to enter the programme
number of your choice. To select EPG
Press to display the Electronic Programme
Guide. Press again to remove display.
To select Teletext
Press to switch on Teletext.
To display picture menu Press to change the picture settings. Press
the OK button to remove the display.
To display sound menu
Presstochangethesound settings.Pressthe
OK button to remove the display.
To adjust TV volume
Press to adjust the volume of the TV.
7
RM-888
MENU
PROGR
12 3
45 6
789
0
OK
Getting Started When you first switch on the TV, the followingsequence of menu screens appearon the TV enabling you to 1) choose a language for the TV menu screens, 2) tune channels to the TV, 3) arrange the channels.
6. Automatically tuning the TV
Yes No
Do you want to start automatic tuning?
Confirm: OK
Please confirm that antenna is connected
Confirm: OK
BBCTWO
1. When switching on the TV for the first time, the
‘LANGUAGE’ menu appears automatically on the TV
screen enabling you to select in which language you wish
to read the TV menu screens. Press the
V
or
v
buttons on
the remote control to select your chosen language then
press the OK button to confirm your selection.
2. The ‘automatic tuning’ menu appears on the TV screen in
your selected language. Press the
V
or
v
buttons to select
‘YES’ then press the OK button to confirm.
3. Ensure the antenna is connected as instructed, then press
the OK button to confirm. The TV starts to automatically
search and store all available channels for you. Please be
patient and do not press any buttons.
The digital channels will be stored on programme numbers 1-90 and the analogue channels on programme
numbers 91-99.
Note: If any digital channels are stored on programme numbers 91-99 during the Automatic Tuning procedure,
then no analogue channels will be allocated. If this
happens, please refer to the section ‘Manually tuning the
TV’ on page 19 of this manual to tune in and store the
analogue channels.
4. When the TV has finished tuning in all available
channels, the ‘PROGRAMME SORTING’ menu appears
on the TV screen enabling you to change the order of the
channels on your TV. If you do not wish to use this option, proceed to step 5. If you wish to change the channel order, press the
V
or
v
buttons on your remote control to select the channel you
want to move, then press the OK button. Press the
V
or
v
buttons to select the new programme number position for
your selected channel then press the OK button to
confirm. The selected channel now moves to its new
programme position. Repeat this procedure if you wish to
sort the order of other channels on your TV.
5. Press the MENU button to remove the menu fromthe TV
screen.
6. Press the PROGR+/- or the numbered buttons on the
remote control to view the TV channels.
If you have connected a VCR to your TV, you now need to find the video channel.
1. Press the PROGR +/- buttons on the remote control until the video picture appears on the TV screen.
Note: If you wish to move your video channel to a different programme position,refer to the ‘Re-arranging the TV channels’ sectionin this
instruction manual.
7. Finding your video channel after tuning
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

10
24
RM-888
MENU
PROGR
OK
Additional TV Features
After tuning the TV, you can use this feature to change the channel order.
Re-arranging the TV channels
1. Press the MENU button on the remote control to display
the menu on the TV screen.
2. Press the Vor vbuttons to select the symbol on the
menu screen then press the bbutton to enter the
‘PRESET’ menu.
3. Press the vbutton to select ‘Programme Sorting’ then
press the bbutton to enter the ‘PROGRAMME
SORTING’ menu.
4. Press the Vor vbuttons to select the channel you want
to move then press the OK button to confirm.
5. Press the Vor vbuttons to select the new programme
position (e.g. PROG 4) for your selected channel, then
press the OK button to confirm. The selected channel now moves to its new programme position.
6. Repeat steps 4 and 5 if you wish to sort other channels. 7. Press the MENU button to remove the menu fromthe TV
screen.
10
RM-888
MENU
PROGR
OK
Additional TV Features
Although the picture is adjusted at the factory, you can modify it to suit your own taste.
Adjusting the picture
Changing picture and sound modes quickly
You can quickly change the Picture Mode or the Sound Mode
without entering the ‘PICTURE CONTROL’ or the ‘SOUND
CONTROL’ menu screens.
1. Press the symbol on the remote control for picture modes
or the symbol for sound modes.
2. Press the Vor vbuttons to select the desired mode.
3. Press the OK button to remove the display from the TV
screen.
Personal Movie Live
1. Press the MENU button on the remote control to display the
menu on the TV screen.
2. Press the Vor vbuttons on the remote control to select the
symbol on the menu screen then press the bbutton to
enter the ‘PICTURE CONTROL’ menu.
3. Press the Vor vbuttons to select the item on the screen you
wish to adjust then press the bbutton to confirm. For a
description of the menu items and their effects, see the table
below.
4. If you selected ‘Picture Mode’ or ‘Format’ in step 3, press the
Vor vbuttons to select the item on the screen you wish to
adjust then press the bbutton to confirm.
5. Press the bor Bbuttons to adjust your selected item.
6. As soon as you have adjusted the item, press the OK button to
store the new setting.
7. If you selected ‘Picture Mode’ or ‘Format’ in step 3, press the
Bbutton to return to the ‘PICTURE CONTROL’ menu.
8. Repeat steps 3-7 to adjust the other items.
9. Press the MENU button to remove the menu from the TV
screen.
Picture Mode Picture ModebPersonal (for individual settings)
Movie (for films)
BLive (for live broadcasts)
Brightness* Colour* Sharpness*
Hue**
Contrast Reset Resets picture to factory preset levels
Format Format (refer to page 14 for details)
Scroll Auto 16:9 bOff BOn
Digital Signal Set to Composite or RGB. Choose the option
that gives you the picture quality you prefer
*Only if you select ‘Personal’ in ‘Picture Mode’.
** Available for NTSC colour system only.

11
13
Additional TV Features
Before listening to Dolby Pro Logic encoded programmes, you can adapt the Dolby features to suit your own taste. This is only
required if you have connected your own external speakers (SS-CR190 or equivalent), and/or if you decide to change the speaker positions.
Note: There will be no output available fromthe headphonesor the audiooutput sockets on the rear of the TV during Dolby Pro
Logic mode.
Setting up Dolby Pro Logic
1. Press the MENU button on the remote control to display
the menu on the TV screen.
2. Press the Vor vbuttons to select the symbol on the
menu screen then press the bbutton to enter the
‘PRESET’ menu.
3. Press the Vor vbuttons to select ‘Dolby Mode Setup’ on
the menu screen then press the bbutton to enter the
‘DOLBY MODE SETUP’ menu.
4. Press the Vor vbuttons to select ‘Dolby Mode’, then
press the bbutton to enter. Press the bor Bbuttons to
select one of the following modes then press the OK
button to store the chosen mode: Pro Logic: all 5 speakers are activated
3 stereo: surround speakers are not used
Virtual: no external speakers required. Do not select this mode if you wish to receive Dolby Pro logic
5. Press the vbutton to select ‘Centre Mode’, then push the
bbutton to enter. Press the bor Bbuttons to select one
of the following modes then press the OK button to store
the chosen mode: Normal: all 5 speakers are activated
Wide: wider bandwidth for centre speaker
Phantom: centre speaker is not used (This cannot be
selected if you have chosen “3 stereo” mode in step 4)
6. Press the vbutton to select ‘Test Tone’ then push the b
button to enter. Press the bor Bbuttons to select ‘On’,
then press the OK button.
The test tone will cycle through all the speakers.
7. Press the vbutton to select the ‘Left Speaker’, then press
the bbutton to confirm. The tone remains at the left
speaker.
8. Press the Vor vbuttons to alter the sound level, then
press the OK button.
9. Repeat steps 7 and 8 to select and adjust the ‘Centre’,
‘Right’, and ‘Surround’ speakers, so that the sound output
from all speakers are balanced in relation to your sitting
position.
10.Press the MENU button to remove the display.
Note: After setting up Dolby ProLogic, refer tothe ‘Adjusting the sound’ section
on page 11 and set the Surround Mode to Pro Logic.
RM-888
MENU
PROGR
OK
11
RM-888
MENU
PROGR
OK
Additional TV Features
Although the sound is adjusted at the factory, you can modify it to suit your own taste.
Adjusting the sound
1. Press the MENU button on the remote control to display the
menu on the TV screen.
2. Press the Vor vbuttons to select the symbol on the
menu screen then press the bbutton to enter the ‘SOUND
CONTROL’ menu.
3. Press the Vor vbuttons to select the item on the screen you
wish to adjust then press the bbutton to confirm. For a
description of the menu items and their effects, see the table
below.
4. If you selected ‘Sound Mode’ or ‘Surround Mode’ in step 3,
press the Vor vbuttons to select the item on thescreen you
wish to adjust then press the bbutton to confirm.
5. Press the bor Bbuttons to adjust your selected item.
6. As soon as you have adjusted the item, press the OK button
to store the new setting.
7. If you selected ‘Sound Mode’ or ‘Surround Mode’ in step 3,
press the Bbutton to return to the ‘SOUND CONTROL’
menu.
8. Repeat steps 3-7 to adjust the other items.
9. Press the MENU button to remove the menu from the TV
screen.
Sound Mode bPersonal
Rock
Jazz
BPop
Balance
Reset Resets sound to factory preset levels
Bass Extension Boosts bass by a fixed amount
Surround Mode Choose from the special sound effects:
Off --> Pro Logic --> 3 Stereo --> Virtual Dolby --> Pseudo Stereo --> Spatial
Dual Sound StereoBbMono (for a stereo broadcast)
A for channel 1BbB for channel 2
(for a bilingual broadcast)
Volume Offset BThe channel volume level can be b
adjusted over a range of -12 to +12.
Headphones i Volume
i Dual Sound Stereo BbMono (for a stereo broadcast)
A for channel 1 BbB for channel 2
(for a bilingual broadcast)
Auto Surround Set to ‘On’ to automatically select Pro Logic
Surround sound when transmitted.
In ‘Personal’ mode, Treble and Bass can be adjusted
Only available when ‘Surround Mode’ is set to ‘Off’

12
14
RM-888
MENU
PROGR
OK
Additional TV Features
Using this Screen Mode feature you can change the aspect ratio of the screen.
Changing the screen mode
1. Press the MENU button on the remote control to display the
menu on the TV screen.
2. Press the Vor vbuttons to select the symbol on the menu
screen then press the bbutton to enter the ‘PICTURE
CONTROL’ menu.
3. Press the Vor vbuttons to select ‘Format’ on the menu
screen then press the bbutton to enter the ‘FORMAT’ menu.
4. Format
Press the Vor vbuttons to select ‘Format’ then press the b
button to enter. Press the bor Bbuttons repeatedly to select
one of the following modes then press the OK button to store
the chosen mode:
• Smart - imitation of wide screen effect (16:9) for 4:3
broadcasts
• Wide - for 16:9 broadcasts
• Zoom - imitation of wide screen effect (16:9) for movies
broadcast in cinemascopic format
• 14:9 - compromise between 4:3 and 16:9 format - for
conventional 14:9 picture
• 4:3 - conventional 4:3 picture
5. Scroll (Applies to Zoom, 14:9 or Smart format only)
Press the Vor vbuttons to select ‘Scroll’. You can use
‘Scroll’ to move the screen up or downwards in order to see
the cut-off parts (e.g. to read subtitles). Press the bbutton to
highlight the present value then press the Bor bbuttons to
adjust the screen position over a range of -5 to +5. Press the
OK button to store.
6. Auto 16:9
Press the Vor vbuttons to select ‘Auto 16:9’ then press the b
button to enter. Press the Bor bbuttons to select ‘On’ if you
wish the TV to switch automatically to wide format when a
16:9 broadcast is detected, or ‘Off’ to retain the format
selected in step 4. Press the OK button to store.
7. Press the MENU button to remove the menu from the TV
screen.
FORMAT
Scroll Auto 16:9
rmat
Format Wide
0 On
4:3
14:9
Zoom
Wide
Smart
Note: You can change the picture format quickly without having
to enter the menu system. Simply press the button repeatedly
until the picture is displayed in the format you desire.
19
RM-888
MENU
PROGR
12 3
45 6
789
0
OK
Additional TV Features
You have already tuned the TV automatically using the instructions at the start of this manual. You can however carry out this
operation manually, adding channels to the TV, one at a time.
Manually tuning the TV
1. Press the MENU button on the remote control to display
the menu on the TV screen.
2. Press the Vor vbuttons to select the symbol on the TV
screen then press the bbutton to enter the PRESET menu.
3. Press the Vor vbuttons to select ‘Manual Programme
Preset’ on the menu screen then press the bbutton to enter
the ‘MANUAL PROGRAMME PRESET’ menu.
4. Press the Vor vbuttons to select an unused programme
number for your channel then press the bbutton to enter.
5. Press the Vor vbuttons to select the TV broadcast system
(I for analogue or DIG for digital) or a video input source
(AV1, AV2 ...) then press the bbutton to confirm.
6. Select the first number digit of ‘CHAN’ (channel) then the
second number digit of ‘CHAN’ with the numbered buttons
on the remote control
or Press the Vor vbuttons to search for the next available
channel.
7. If you wish to change the ‘SERV’ service number (on
digital programmes only), select each digit in turn and press
the numbered buttons on the remote control to change to
your desired service.
8. If you do not wish to store this channel on the programme
number you selected, press the Vor vbuttons on the
remote control to continue searching for the desired
channel.
9. If this is the channel you wish to store, press the OK button. 10.Repeat steps 4-9 if you wish to store more channels then
press the MENU button to remove the menu from the TV
screen.
NOTE: After manually tuning in the channels you require, you
can sort the channels into the order you prefer by following the
procedure ‘Re-arranging the TV channels’ on page 24.
03

13
26
RM-888
MENU
PROGR
12 3
45 6
789
0
OK
Teletext Most of the digital TV channels broadcast information via teletext. This digital service includes high quality text andgraphics as
well as advanced navigational options. Additionally, this television set has access to a dedicated digital teletext channel.
Viewing Digital Teletext
Selecting the dedicated digital
teletext channel
1. To view the dedicated digital teletext service, press the
numbered buttons on your remote control to select the relevant channel number. Ifyou do not know the channel number, press
the OK button to look for that channel in the channel table.
2. Once the teletext channel is displayed, follow the instructions
on-screen to display the teletext information, then press the V,
v, Bor bbuttons to guide the on-screen cursor to the required
area of the screen, then press the OK button to display the
chosen information.
3. Alternatively, you can use the numbered and coloured buttons
on the remote control to directly enter the page number required
and to display the various pages of text information.
4. If when viewing the teletext pages, you are requested to select
‘OK’ or ‘Cancel’, press the OK button for ‘OK’ or the
button for ‘Cancel’.
5. When you have finished viewing teletext, press the button
or the PROG +/- buttons, and then select an alternative digital channel.
Selecting teletext from the other digital channels Normal teletext services may also be available on other digital
channels. Sometimes this is indicated by a small symbol or text
display on your TV screen, superimposed on the channel you are
watching. 1. Press the V, v, Bor bbuttons to select the symbol then press
the OK button to display the chosen information.
2. Alternatively, you may be requested to use the numbered and
coloured buttons on your remote control to display the various pages of text information. If when viewing the teletext pages,
you are requested to select ‘OK’ or ‘Cancel’, press the OK
button for ‘OK’ or the button for ‘Cancel’.
3. Once the text information is displayed on screen, use the V, v,
Bor bbuttons, the coloured buttons and/or the numbered
buttons to access the chosen information.
4. When you have finished viewing teletext, press the button
and then select an alternative digital channel.
On other channels there may be no on-screen symbol, but you can
see if there is a digital service as follows: 1. When watching a digital TV channel, press the button on
your remote control to display any text service which may be
available.
2. Press the numbered buttons to select the various pages of
information available and/or the coloured buttons for the
functions shown on screen.
3. When you have finished using the text service, press the
button to return to normal TV.
25
RM-888
MENU
PROGR
12 3
45 6
789
0
Teletext Teletext is an information service transmitted by most TV stations.
Viewing standard teletext
Selecting Teletext 1. When viewing analogue channels press a numbered button on
the remote control to select the channel which carries the
teletext service you wish to receive.
2. Press the on the remote control to switch on teletext. Press
the button again if you wish to superimpose teletext on to
the TV screen.
3. Select your required page using the numbered buttons on the
remote control. If you make anerror, complete the number, then
re-enter the correct page number.
4. Press the button to switch off teletext. UsingOther Standard TeletextFunctions To move to the next or preceding page
Press the or buttons to select the previous or next page.
To freeze a Teletext page
Press the button to freeze the page. Press again to cancel the freeze. Revealing concealed information (eg:answers to a quiz).
Pressthe buttonto revealinformation.Pressagain toconceal the information.
Using colour buttons to access pages (Fastext)
When the colour coded menu appears at the bottom of a page, press
the colour buttons (red, green, yellow or blue) on the remote control
to access the corresponding page. Displaying TOP-Text (when available) With TOP-Text you can access pages easily by selecting blocks or
groups of pages. The block is a category (for example Sports) which includes the groups (for example Football). When TOP-Text is
broadcast, a colour codedmenu appears at the bottom of the screen. The colours of this menu correspond to the red, green, yellow and
blue buttons on the remote control. Press these coloured buttons to
displayed the desired pages.
Index
TELETEXT
Programme News Sport Weather
25 153 101 98
Index
TELETEXT
Programme News Sport Weather
25 153 101 98
1. Press the button to display teletext. 2. Press the coloured buttons to search for the page you desire:
Red: to go back to the previous page.
Green: to proceed to the next page.
Yellow: to proceed to the first page of the next group.
Blue: to proceed to the first page of the next block.
3. Press the button twice to return to normal TV.

14
34
Additional Information
Here are some simple solutions to problems which may affect the picture and sound.
• If you continue to have these problems, have your TV serviced by qualified personnel or
you can contact the Sony UK Digital HelpLine on 0870 600 1717.
• NEVER open the casing yourself.
Troubleshooting
Problem Cause No picture, no sound. Poor or no picture (screen is dark), but good sound.
No picture on any channel after digital tuning. Some channels are blank. Standby indicator flashing.
Good Picture, no sound.
No head phone output and no output from the audio
sockets marked on the rear of the TV.
Poor picture quality. No colour on colour programmes. Remote control does not function. Distorted picture when changing programmes or selecting Teletext.
•Poweroff. • TV in standby. • Aerial disconnected. • Picture preset level adjustment.
• No digital transmissions in your area.
• No digital transmissions from the transmitter you are currently using.
• Weak signal. • Unsuitable aerial.
• Scrambled/subscription-only channel.
• Programme used only for data (no picture or sound).
• Programme not being transmitted.
• Digital mode Timer Record active (regular flash).
• Fault (irregular flash).
• Volume control.
• The button marked on the rear of the TV is pressed in.
• The TV has been set up to receive Dolby Pro Logic.
• Wrong external mode selected on an RGB video source.
• Colour level setting.
• Batteries low. • Inputs from external equipment not switched off.
Cause •Solution
Power off.
TV in standby. Aerial disconnected. Picture level adjustment.
No digital transmissions in your area. No digital transmissions from the transmitter you
are currently using.
Unsuitable aerial. Weak signal. Scrambled/subscription-only channel.
Programme information without picture or sound.
Fault. Volume control.
Wrong external mode selected.
Colour level setting.
• Plug in the TV.
• Press the button on the front of the TV.
• If the indicator is on press the button or a numbered button on the
remote control.
• Check the aerial connection.
• Select on the TV menu system then adjust the brightness, picture and colour
balance levels.
• Tune in the analogue channels available using the ‘Manually tuning the TV’
instruction in this manual, then contact a local installer to find out when digital transmissions begin in your area.
• Contact a local installer to find out which transmitter you should be pointing
your aerial at.
• Change your aerial to cover the channels used by digital programmes. (Contact
a local installer)
• Ensure aerial is correctly aligned to transmitter. • Ensure aerial is plugged directly into the TV (not through other equipment).
• Upgrade to a higher gain aerial.
• Subscribe to pay-per-view broadcaster. • See ‘Skipping programme positions’ section.
• See ‘Re-arranging the TV channels’ section. • Do not open the cabinet, refer to qualified personnel. • Contact your nearest Sony Service Centre. • Press the + button on the remote control. • If is displayed on the screen, press the button on the remote control.
• Press the button repeatedly until the RGB symbol is displayed on
screen.
• Select on the TV menu system then adjust the colour setting.
/
33
Additional Information
Specifications
TV system
I/DVB-T
Colour system PAL NTSC 3.58, 4.43 (only Video in)
Channel coverage
UHF:B21-B69 Picture tube KV-28DX30U
FD Trinitron WIDE
Approx. 71cm (28inches) (Approx. 66cm picture measured diagonally), 102° deflection
KV-32DX30U
FD Trinitron WIDE
Approx. 82cm (32 inches) (Approx. 76cm picture measured diagonally), 102° deflection
Rear Terminals
21-pin Euro connector (CENELEC standard) including audio/video
input, RGB input, TV audio/video output.
/ 21-pin Euro connector (CENELEC standard) including audio/video
input, S-video input, selectable audio/video output.
21-pin Euro connector (CENELEC standard) including audio/video
input, selectable audio/video output.
Audio outputs - phono jacks
MODEM Modem connection
Front Terminals
Video input -phono jack
Audio inputs - phono jacks
S video input - 4 pin DIN
Headphones jack - minijack stereo
Sound output Left/Right: 2x20W (music power)
Power consumption
KV-28DX30U: 136W
KV-32DX30U: 134W
Dimensions (wxhxd)
KV-28DX30U: Approx. 796x518x522mm KV-32DX30U: Approx. 883x567x562mm Weight KV-28DX30U: Approx. 44kg
KV-32DX30U: Approx. 62kg
Accessories supplied
RM-888 remote control (1)
IEC designated size AA battery (2)
Other features
Teletext
Dolby ProLogic Surround System Smartlink
Design and specifications are subject to change without notice.
1
2
s
2
3
2
2
s

15
=> <=
=>
=>
=>
<=
<=
<=
<=
<=
Shield
Case
Remove the rear cover fixing screws indicated. Take care
when removing the rear cover not to damage the speaker
cables [Disconnect the speaker connector] as speakers are
fitted inside the rear cover.
SECTION 2 DISASSEMBLY
2-1. Rear Cover Removal
To remove 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.
2-3. N Board Removal
When refitting the chassis ensure that the main
bracket is located in the beznet guide slots before
sliding the chassis forwards. Refit the
interconnecting leads in their respective purse locks.
To remove the N Board first pull the shield case shown
vertically. The clip circled can then be released and the board
gentlyremoved.
2-2. Chassis Removal and Refitting
Clip

16
2-4. Service Position
2-5. A Board Removal
Position the chassis as indicated to access the solder side.To gain access to the D Board follow the instructions on page 19. [Removal and
Replacement of the main bracket bottom plates ].
To remove theA Board release the clip circled and gently
remove the board in a vertical direction.
2-6. A Extension Board
A board
BE-3E Extension Board
To gain test access to theA Board remove the board and plug in
the extension board.TheA board can then be plugged into the
extension board to allow testing.

17
Release the clip circled and pull the bracket towards the rear of
the set. The bracket can then be removed to allow access to the
boards.
Clip
Remove the two screws fixing the user control module to the
side of the set. The control module can then be removed by
sliding it towards the rear of the set allowing access to the H7
Board.
Screws
2-8. F4 Bracket Removal
2-9. F4 and H8 Board Removal
To remove the F4 and H8 Boards release the clips circled and
ease the boards gently away from the support bracket.
Clips
Clips
2-7. Side Control Module Removal

18
Anode button
a
* REMOVING PROCEDURES.
Turn up one side of the rubber cap in
the direction indicated by the arrow a
12 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
bb
c
+RZ WR KDQGOH WKH $QRGH&DS
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.
5HPRYDO RI WKH $QRGH&DS
 3LFWXUH 7XEH 5HPRYDO
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 remove the anode cap.
2. Unplug all interconnecting leads from the Deflection yoke, neck
assy, degaussing coils and CRT grounding strap.
3. Remove the C Board from the CRT.
4. Remove the chassis assembly.
5. Loosen the Neck assembly fixing screw and remove.
6. Loosen the Deflection yoke fixing screw and remove.
7. Place the set with the CRT face down on a cushion and remove
the Degaussing Coil holders.
8. Remove the Degaussing Coils.
9. Remove the CRT grounding strap and spring tentioners.
10. Unscrew the four CRT fixing screws [ located on each CRT
corner ] and remove the CRT.
[Take care not to handle the CRT by the neck.]
1
3
4
6
810
5
9
2
7

19
REMOVALAND REPLACEMENT OFTHEMAIN-BRACKET
BOTTOM PLATES.
(1) REMOVINGTHE PLATES
In the event of servicing being required to the solder side of the D Board printed wiring board, the bottom plates fitted to the main chassis bracket require to be removed. This is performed by cutting the gates with a sharp wire cutter at the locations indicated by the arrows. Note : There are 4 plates fitted to the main bracket and secured by3 gates.
Only remove the necessary plate to gain access to the printed wiring board.
(2) REFITTINGTHE PLATES
Because the plates differ in size it is important that the correct plates are refitted in their original location. Please note that the plates need to be rotated 180 degrees from their cut position to allow the tabs to be fitted into their catch positions.
For safety reasons, on no account should the plates be removed and not refitted after servicing.
£
Tab
Catch
Fig 2
NUMERICAL MARKINGS
ATTENTION
ATTENTION
THIS PLATE MUST BE REMOVED
(TURN 180' NOT FLIP OVER)
AFTER CUTTING AWAY
FOR SAFETY REASONS
THIS PLATE MUST BE REMOVED
AFTER CUTTING AWAY FOR THE SAFETY REASON.
22
22
1
1
44
3
44
REFITTING REFITTING
ATTENTION
ATTENTION
THIS PLATE MUST BE REMOVED
(TURN 180' NOT FLIP OVER)
AFTER CUTTING AWAY
FOR SAFETY REASONS
22
22
1
1
Cut points
Fig 1
MAIN BRACKET
INSERT FROM THE BOTTOM SIDE
FIG 3
Fig 4
other
.
In the event of the plates requiring to be removed
at a later stage, this can be achieved by inserting a
screwdriver in the snap-recess indicated as in Fig 4
and lifting out.

20
•When complete readjustment is necessary or a new picture tube is
installed, carry out the following adjustments.
•Unless there are specific instructions to the contrary, carry out
these adjustments with the rated power supply.
•Unless there are specific instructions to the contrary, set the
controls and switches to the following settings :
Contrast .................................. normal
Brightness .................................. normal
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 TV set’s power and degauss with a degausser.
(1) Adjustment of Correction Magnet for Y-Splitting Axis.
1. Input a crosshatch signal from the pattern generator.
2. Set the Picture control to minimum and confirm that the
Brightness control is set to normal.
3. Position the neck assembly as indicated in Fig.3-3.
4. Loosen the deflection yoke fixing screw.
5. Move the deflection yoke as far forward as is possible.
6. Adjust the upper and lower pin symmetrically by opening or
closing theY-splitting axis correction magnets located on the neck
assembly. [See Fig 3-1 and Fig 3-2]
7. Return the deflection yoke to its original position and re-tighten its
fixing screw.
Carry out the adjustments in the following order :
3-1. BeamLanding.
3-2. Convergence.
3-3. Focus.
3-4. WhiteBalance.
Note : Testequipment required.
1. Colorbar/pattern generator.
2. Degausser.
3. Oscilloscope.
4. Digital multimeter.
Fig.3-1
(2) Landing
Note : Before carrying out the following adjustments adjust the
magnets as indicated below [See Fig.3-4].
1. Input a crosshatch signal from the signal generator.
2. Rough-adjust the focus and horizontal convergence.
3. Switch from the crosshatch pattern to an all-red pattern.
4. Move the deflection yoke backwards and adjust with the purity
magnet so that the red is at the centre and it aligns
symmetrically [See Fig.3-5].
5. Move the deflection yoke forward to the point where the entire
screen just becomes red [Mark its position].
6. Move the deflection yoke further forward until the screen just
changes colour at the edges. [Mark its position]
7. Position the deflection yoke between the two marks indicated
above.
8. Input a crosshatch pattern from the pattern generator and rotate the
deflection yoke so that the horizontal lines are parallel with the top
and bottom of the screen.
9. When the position of the deflection yoke has been determined,
fasten it with its fixing screw.
10. Switch the pattern generator to green then blue and confirm the
purity.
11. If the beam does not land correctly in all the corners of the screen,
use disk magnets to correct it. [Confirm the corner landing for
green and blue]
SECTION 3 SET-UP ADJUSTMENTS
3-1. Beam Landing Caution :
High voltages are present on the Deflection yoke terminals - take care
when handling the Deflection yoke whilst carrying out adjustments.
Y-splitting axis correction magnet
Fig.3-2
Fig.3-3 Neck assy
Align the edge
of the neck assy with
the edge of the G2 grid
on the G3 side.
G2
G1
G3
+