Sony FD Trinitron KV-28DX30U, FD Trinitron KV-32DX30U Service Manual

SERVICE MANUAL

BE-3E

CHASSIS

MODEL

KV-28DX30U

COMMANDER DEST CHASSIS NO.

RM-888 UK SCC-Q25H-A

MODEL

KV-32DX30U

COMMANDER DEST CHASSIS NO.

RM-888 UK SCC-Q25J-A

1

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Section Title Page Section Title Page

Specifications .................... 3

Connectors .................... 4

Self Diagnostic Software .................... 5

1. GENERAL

Overview of the Remote Control................... 9

AutomaticallyT uning the TV .................... 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

Vie wing Standard T elete xt .................... 13

Vie wing Digital T elete xt .................... 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 Remov al .................... 18

Bottom Plates .................... 19

3. SET-UP ADJUSTMENTS

3-1. Beam Landing .................... 20

3-2. Convergence .................... 21

3-3. Focus, Screen [G2] Adjustment.................... 23

3-4. White Balance .................... 23

4. CIRCUIT ADJUSTMENTS

4-1. Electrical Adjustments .................... 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 Board Location .................... 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. EXPLODED VIEWS

6-1. Chassis .................... 95

6-2. Picture Tube .................... 96

7. ELECTRICAL PARTS LIST .................... 97

ATTENTION

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
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.

ON

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

LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE

£

MARQUE
EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPOR­TANCE 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.

SUR LES SCHÈMAS DE PRINCIPE, LES VUES

LA SECURITÈ!!

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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

mark.

T

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

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21
19
17
15
13
11

9
7
5
3
1

20
18
16
14
12
10

4
2

Pin No 1 2 3 Signal Signal level

1 Audio output B

2

3
4 Ground (audio)
5 Ground (blue)
6 Audio input A

7 Blue input 0.7 +/- 3dB, 75 ohms positive

8 Function select

9 Ground (green)
10 Open
11 Green Green signal : 0.7 +/- 3dB, 75 ohms,

12 Open
13 Ground (red)

8
6

14 Ground (blanking)

15

_ (S signal Chroma

16 Blanking input

17 Ground (video

18 Ground (video

19 Video output 1V +/- 3dB, 75ohms, positive sync 0.3V

20

_ Video input

21 Common ground

(right)
Audio output B

(right)
Audio output A

(left)

(left)

(AV control)

_ _ Red input 0.7 +/- 3dB, 75 ohms, positive

input)

(Ys signal)

output)

input)

_ _ Video input 1V +/- 3dB, 75ohms, positive sync 0.3V

Y (S signal)

(plug, shield)

Standard level : 0.5V rms
Output impedence : Less than 1kohm*

Standard level : 0.5V rms
Output impedence : More than 10kohm*

Standard level : 0.5V rms
Output impedence : Less than 1kohm*

Standard level : 0.5V rms
Output impedence : More than 10kohm*

High state (9.5-12V) : Part mode
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF

positive

0.3 +/- 3dB, 75 ohms, positive

High state (1-3V) Low state (0-0.4V)
Input impede nce : 75 ohms

(-3+10dB)

(-3+10dB)
1V +/- 3dB, 75ohms, positive sync 0.3V

(-3+10dB)

Connected Not Connected (open) * at 20Hz - 20kHz

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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 norma l run time, the micro’s
self diagnostic procedures monitor for various errors. Errors displayed refer to the table indicated below .

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60>ylnOpUrewoP<woLlcSCII
70>ylnOpUrewoP<woLadSCII
80>ylnOpUrewoP<woLlcS&adSCII
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01>ylnOpUrewoP<egdelwonkcaon)0402AXC(hctiwSoediV

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31egdelwonkcaonMVN
41egdelwonkcaon)9802AXC(hctiwSVA
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61egdelwonkcaon)5781AXC(rednapxEtroP
71desUtoN
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02 )tsetv9+(kcehcpurewopretfaeruliafesnopserrellortnoCelgnuJ

12 >noitasilaitinIsissahC<-tesernorewoptonnac)0402AXC(hctiwSoediV

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32 )!orcimsaemas-V5+YBTS(noitasilaitiniretfaliafegdelwonkcaMVN
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5

Protection Error

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 is not checked during the first 3 - 4 seconds after AC on.

If this error is diagnosed, the r espective NVM r e g ister will be updated and the set goes straight into diagnostic standby with 2 flashes - no reset is
attempted.

AKB Error (Error 5)

Once every main loop the micro checks the AKB stability by reading the IKR return from the Jungle IC. IKR=1 means that the AKB is stable,
IKR=0 means that the AKB 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 after AC switch on.

If this error is diagnosed, the r espective NVM r e gister will be updated and the r esponse 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.

Time /seconds

0 102030405060708090100

IKR

Return

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.

Startup Diagnostic Errors (Error 6-18, 27, 29-32)

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41hctiwSoediV9802AXCehtmorfegdelwonkcaoN
61rednapxEtroPoediV5781AXCehtmorfegdelwonkcaoN

81)0708AXC(ecnegrevnoCcimanyDehtmorfegdelwonkcaoN

72tsetMARtxeTtcapmoCretfawolnipDXT_L3M
92wolnipDXT_L3M
03wolnipDXR_L3M

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23liaftsetMARtxeTtcapmoC

If any of these errors ar e detected, the r espective NVM r e gister will be incr emented. The softwar e will then carry on with the power up sequence.

6

General IIC Device Run-time Errors (Errors 19-23)

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02sretsigerdaerotgnitpmettanehwelgnuJmorfegdelwonkcaoN

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22 sretsigerdaerotgnitpmettanehwhctiwSVAmorfegdelwonkcaoN
32etirwrodaerotgnitpmettanehwMVNmorfegdelwonkcaoN

If any of these errors ar e detected, the r espective NVM r e gister will be incr emented and the software will carry on.

Compact Text Run-time Errors (Errors 26, 28, 33 & 34)

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62

82

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In the case of these errors, the ‘device reset’ pin will be held low for 60ms, causing a hardwar e reset of Compact Text. Following this r eset, a long er
timeout will be allowed for the M3L bus to recover. If the error still exists, the NVM r e gister will be incremented and the software will carry on.

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In the case, the ‘device reset’ pin will be held low for 60ms, causing a har dwar e r eset 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 e xcept tha t the M3L b us timeout is not changed.

MSP and DSP Run-time Errors (Errors 24 & 25)

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52

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For both these errors, the softwar e will refresh the MSP and DSP registers. If the errors still e xist, the NVM counter will be incremented, and the
software will carry on.

7

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 :

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

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.

8

SECTION 1 GENERAL

7

BBC TWO

Yes

No

Confirm: OK

Do you want to start

automatic tuning?

buttons on

v

or

V

buttons to select

v

or

V

Confirm: OK

Please confirm that

antenna is connected

v

v

or

or

V

V

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.

The digital channels will be stored on programme

to read the TV menu screens. Press the

press the OK button to confirm your selection.

screen enabling you to select in which language you wish

1. When switching on the TV for the first time, the

‘LANGUAGE’ menu appears automatically on the TV

the remote control to select your chosen language then

your selected language. Press the

2. The ‘automatic tuning’ menu appears on the TV screen in

‘YES’ then press the OK button to confirm.

3. Ensure the antenna is connected as instructed, then press

9

2 345 6

8

1

6. Automatically tuning the TV

Getting Started

When you first switch on the TV, the following sequence o f menu screens ap pear on the TV en abling you to 1) ch oose a language

for the TV menu screens, 2) tune channels to the TV, 3) arrange the channels.

7

numbers 1-90 and the analogue channels on programme

the OK button to confirm. The TV starts to automatically

patient and do not press any buttons.

numbers 91-99.

search and store all available channels for you. Please be

MENU

0

Note: If any digital channels are stored on programme

OK

analogue channels.

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.

numbers 91-99 during the Automatic Tuning procedure,

TV’ on page 19 of this manual to tune in and store the

then no analogue channels will be allocated. If this

happens, please refer to the section ‘Manually tuning the

channels, the ‘PROGRAMME SORTING’ menu appears

If you wish to change the channel order, pr ess the

want to move, then press the OK button. Press the

buttons on your remote control to select the channel you

4. When the TV has finished tuning in all available

PROGR

RM-888

sort the order of other channels on your TV.

programme position. Repeat this procedure if you wish to

confirm. The selected channel now moves to its new

your selected channel then press the OK button to

buttons to select the new programme number position for

screen.

remote control to view the TV channels.

5. Press the MENU button to remove the me nu from the TV

6. Press the PROGR+/- or the numbered buttons on the

7. Finding your video channel after tuning

If you have connected a VCR to your TV, you now need to find the video channel.

instruction manual.

Note: If you wish to move your video channel to a different programme position, re fer to the ‘Re-arra nging the TV ch annels’ section in this

1. Press the PROGR +/- buttons on the remote control until the video picture appears on the TV screen.

9

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 w he n the TV is

automatically into standby mode.

To select input signal or freeze teletext

without any button being pressed, the TV switche s

NOTE: After 15-30 minutes without a TV signal and

not in use.

cancel.

Optional Equipment section). In teletext mode, press

To return to previous channel

Press to select inputs from the TV sockets (see Using

Press to return to the previous channel you were

to freeze the displayed page. Press once agai n to

watching. Note: This can be done only if you watched

Press to use the TV menu system. Press again to

To display the menu

the previous channel for at least 5 seconds.

remove the menu from the TV screen.

MENU

To select menu items

options available when in the menu system of this TV.

display the channel listing table.

To change screen format

Use these buttons and the OK button to select the

Press to change the size of the screen.

Pressing the OK button in normal TV mode will

See Teletext section of manual for details.

To select channels

Press to select channels.

PROGR

RM-888

Overview

Overview of the remote control buttons

To mute sound

Press to mute TV sound. Press again to

Guide. Press again to remove display.

Press to switch on Teletext.

Press to display the Electronic Programme

To select Teletext

To display picture menu

Press to change the picture settings. Press

number of your choice.

To select EPG

answers to a quiz) then press again to

cancel.

restore the sound.

To reveal on screen information

Press to reveal all on-screen indications.

Press again to cancel. In teletext mode,

Press the numbered buttons to select

To select channels

press to reveal concealed information (e.g.

-/-- button again to enter the programme

e.g.23, press -/-- first, then the buttons 2 and

3. If you enter an incorrect first digit, select

channels.

For double digit programme numbers,

To display sound menu

the OK button to remove the displa y.

Press to change the sound settings. Pr ess the

To adjust TV volume

OK button to remove the display.

Press to adjust the volume of the TV.

9

Personal

Movie

Live

b button to

b button to confirm. For a

Movie (for films)

b button to confirm.

V or v buttons on the remote control to select the

V or v buttons to select the item on the screen you

symbol on the menu screen then press the

enter the ‘PICTURE CONTROL’ menu.

menu on the TV screen.

1. Press the MENU button on the remote control to display the

2. Press the

Adjusting the picture

Additional TV Features

Although the picture is adjusted at the factory, you can modify it to suit your own taste.

wish to adjust then press the

description of the menu items and their effects, see the table

below.

3. Press the

b or B buttons to adjust your selected item.

store the new setting.

adjust then press the

V or v buttons to select the item on the screen you wish to

4. If you selected ‘Picture Mode’ or ‘Format’ in step 3, press the

B button to return to the ‘PICTURE CONTROL’ menu.

6. As soon as you have adjusted the item, press the OK button to

5. Press the

MENU

9. Press the MENU button to remove the menu from the TV

7. If you selected ‘Picture Mode’ or ‘Format’ in step 3, press the

8. Repeat steps 3-7 to adjust the other items.

OK

B Live (for live broadcast s)

Brightness*

Colour*

Sharpness*

Hue**

screen.

Picture Mode Picture Modeb Personal (for individual settings)

PROGR

Scroll

Auto 16:9 b Off B On

that gives you the picture quality you prefer

Format Format (refer to page 14 for details)

Contrast

Reset Resets picture to factory preset levels

RM-888

Digital Signal Set to Composite or RGB. Choose the option

*Only if you select ‘Personal’ in ‘Picture Mode’.

** Available for NTSC colour system only.

Changing picture and sound modes quickly

without entering the ‘PICTURE CONTROL’ or the ‘SOUND

You can quickly change the Picture Mode or the Sound Mode

V or v buttons to select the desired mode.

or the symbol for sound modes.

CONTROL’ menu screens.

screen.

3. Press the OK button to remove the display from the TV

1. Press the symbol on the remote control for picture modes

2. Press the

10

Additional TV Features

Re-arranging the TV channels

After tuning the TV, you can use this feature to change the channel order.

b button to enter the

b button to enter the ‘PROGRAMME

menu screen then press the

the menu on the TV screen.

1. Press the MENU button on the remote control to display

‘PRESET’ menu.

2. Press the V or v buttons to select the symbol on the

SORTING’ menu.

press the

3. Press the v button to select ‘Programme Sorting’ then

MENU

to move then press the OK button to confirm.

4. Press the V or v buttons to select the channel you want

OK

PROGR

5. Press the V or v buttons to select the new programme

RM-888

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 chan nels.

screen.

7. Press the MENU button to remove the menu fr om the TV

24

10

13

Additional TV Features

Setting up Dolby Pro Logic

Before listening to Dolby Pro Logic encoded programmes, you can adapt the Dolby features to suit your own taste. This is only

b button to enter the

b or B buttons to select ‘On’,

b button to enter. Press the b or B buttons to

b button to confirm. The tone remains at the left

b button to enter the

‘PRESET’ menu.

menu screen then press the

the menu on the TV screen.

1. Press the MENU button on the remote control to display

2. Press the V or v buttons to select the symbol on the

Logic mode.

Note: There will be no output available from the headphones or the audio ou tput sockets o n the rear of the TV d uring Dolby Pro

required if you have connected your own external speakers (SS-CR190 or equivalent), and/or if you decide to chan ge the speaker

positions.

‘DOLBY MODE SETUP’ menu.

the menu screen then press the

3. Press the V or v buttons to select ‘Dolby Mode Setup’ on

MENU

select one of the following modes then press the OK

press the

button to store the chosen mode:

Pro Logic: all 5 speakers are activated

3 stereo: surround speakers are not used

4. Press the V or v buttons to select ‘Dolby Mode’, then

OK

Virtual: no external speakers required. Do not select this

mode if you wish to receive Dolby Pro logic

5. Press the v button to select ‘Centre Mode’, then push the

PROGR

b button to enter. Press the b or B buttons to select one

of the following modes then press the OK button to store

Wide: wider bandwidth for centre speaker

the chosen mode:

Normal: all 5 speakers are activated

Phantom: centre speaker is not used (This cannot be

then press the OK button.

button to enter. Press the

The test tone will cycle through all the speakers.

speaker.

selected if you have chosen “3 stereo” mode in step 4)

6. Press the v button to select ‘Test Tone’ then push the b

the

7. Press the v button to select the ‘Left Speaker’, then press

press the OK button.

8. Press the V or v buttons to alter the sound level, then

‘Right’, and ‘Surround’ speakers, so that the sound output

9. Repeat steps 7 and 8 to select and adjust the ‘Centre’,

from all speakers are balanced in relation to your sitting

position.

on page 11 and set the Surrou nd Mode to Pro Logic.

10.Press the MENU button to remove the display.

Note: After setting up Dolby ProLogic, refer to the ‘Adjusting the sound’ section

RM-888

11

b button to confirm. For a

b button to enter the ‘SOUND

V or v buttons to select the symbol on the

V or v buttons to select the item on the screen you

CONTROL’ menu.

menu screen then press the

menu on the TV screen.

1. Press the MENU button on the remote control to display the

2. Press the

Adjusting the sound

Additional TV Features

Although the sound is adjusted at the factory, you can modify it to suit your own taste.

wish to adjust then press the

3. Press the

b button to confirm.

Jazz

Rock

In ‘Personal’ mode, Treble and Bass can be adjusted

Only available when ‘Surround Mode’ is set to ‘O ff’

b or B buttons to adjust your selected item.

5. Press the

6. As soon as you have adjusted the item, press the OK button

to store the new setting.

MENU

7. If you selected ‘Sound Mode’ or ‘Surround Mode’in step 3,

B button to return to the ‘SOUND CONTROL’

press the

menu.

screen.

9. Press the MENU button to remove the menu from the TV

8. Repeat steps 3-7 to adjust the other items.

OK

V or v buttons to select the item on the screen you

wish to adjust then press the

description of the menu items and their effects, s ee the tab le

below.

press the

4. If you selected ‘Sound Mode’ or ‘Surround Mode’ in step 3,

B Pop

Sound Mode b Personal

PROGR

Balance

Reset Resets sound to factory preset levels

RM-888

Off --> Pro Logic --> 3 Stereo --> Virtual Dolby -->

Bass Extension Boosts bass by a fixed am ount

Surround Mode Choose from the special sound effects:

(for a bilingual broadcast)

adjusted over a range of -12 to +12.

A for channel 1B b B for channel 2

Pseudo Stereo --> Spatial

Volume Offset B The channel volume level can be b

Dual Sound StereoBbMono (for a stereo broadcast)

(for a bilingual broadcast)

A for channel 1 B b B for channel 2

Surround sound when transmitted.

Headphones

Auto Surround Set to ‘On’ to automatically select Pro Logic

i Volume

i Dual Sound Stereo BbMono (for a stereo broadcast)

11

rmat

19

03

Additional TV Features

Manually tuning the TV

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.

1. Press the MENU button on the remote control to display

b button to enter

b button to enter.

b button to confirm.

V or v buttons on the

b button to enter the PRESET menu.

V or v buttons to search for the next available

digital programmes only), select each digit in turn and press

the menu on the TV screen.

screen then press the

2. Press the V or v buttons to select the symbol on the TV

2 345 6
1

3. Press the V or v buttons to select ‘Manual Programme

9

8

7

FORMAT

Preset’ on the menu screen then press the

0

Wide 0On

Format

Scroll

the ‘MANUAL PROGRAMME PRESET’ menu.

MENU

Auto 16:9

4. Press the V or v buttons to select an unused programme

OK

PROGR

Smart

(I for analogue or DIG for digital) or a video input source

5. Press the V or v buttons to select the TV broadcast system

(AV1, AV2 ...) then press the

6. Select the first number digit of ‘CHAN’ (channel) then the

RM-888

Wide

number for your channel then press the

channel.

second number digit of ‘CHAN’ with the numbered buttons

on the remote control

or

Press the

Zoom

the numbered buttons on the remote control to change to

7. If you wish to change the ‘SERV’ service number (on

14:9

remote control to continue searching for the desired

number you selected, press the

your desired service.

channel.

8. If you do not wish to store this channel on the programme

4:3

press the MENU button to remove the menu from the TV

screen.

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

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.

b button to

B or b buttons to

b button to enter the ‘PICTURE

screen then press the

menu on the TV screen.

1. Press the MENU button on the remote control to display the

Changing the screen mode

Additional TV Features

Using this Screen Mode feature you can change the aspect ratio of the screen.

CONTROL’ menu.

2. Press the V or v buttons to select the symbol on the menu

b button to enter the ‘FORMAT’ menu.

V or v buttons to select ‘Format’ then press the b

Press the

one of the following modes then press the OK button to store

button to enter. Press the

the chosen mode:

screen then press the

3. Press the V or v buttons to select ‘Format’ on the menu

4. Format

MENU

broadcasts

• Smart - imitation of wide screen effect (16:9) for 4:3

OK

conventional 14:9 picture

broadcast in cinemascopic format

• Wide - for 16:9 broadcasts

• Zoom - imitation of wide screen effect (16:9) for movies

• 14:9 - compromise between 4:3 and 16:9 format - for

PROGR

V or v buttons to select ‘Scroll’. You can use

highlight the present value then press the

‘Scroll’ to move the screen up or downwards in order to see

Press the

5. Scroll (Applies to Zoom, 14:9 or Sm art format only)

• 4:3 - conventional 4:3 picture

RM-888

adjust the screen position over a range of -5 to +5. Press the

the cut-off parts (e.g. to read subtitles). Press the

b or B buttons repeatedly to select

OK button to store.

B or b buttons to select ‘On’ if you

V or v buttons to select ‘ Auto 16:9’ then p ress the b

Press the

button to enter. Press the

wish the TV to switch automatically to wide format when a

6. Auto 16:9

16:9 broadcast is detected, or ‘Off’ to retain the format

screen.

selected in step 4. Press the OK button to store.

7. Press the MENU button to remove the menu from the TV

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.

14

12

V,

V, v,

V, v, B or b buttons to select the symbol then press

the OK button to display the chosen information.

coloured buttons on your remo te control to display the various

the OK button to look for that channel in the channel table.

numbered buttons on your remote control to sel ect th e relev an t

Selecting the dedicated digital

Viewing Digital Teletext

Teletext

Most of the digital TV channels broadcast information via teletext. This digital service includes high quality text and graphics as

well as advanced navigational options. Additionally, this television set has access to a dedicated digital teletext channel.

channel number. If you do no t kn ow the c han nel nu mbe r, p ress

1. To view the dedicated digital teletext service, press the

teletext channel

25

153

v, B or b buttons to guide the on-screen cursor to the required

on-screen to display the teletext information, then press the

area of the screen, then press the OK button to display the

chosen information.

on the remote control to directly enter the page number required

and to display the various pages of text information.

‘OK’ or ‘Cancel’, press the OK button for ‘OK’ or the

button for ‘Cancel’.

or the PROG +/- buttons, and then select an alternative digital

2. Once the teletext channel is displayed, follow the instructions

2 345 6
1

101

98

3. Alternatively, you can use the numbered and coloured buttons

4. If when viewing the teletext pages, you are requested to select

9

MENU

0

8
7

channel.

5. When you have finished viewing teletext, press the button

OK

channels. Sometimes this is indicated by a small symbol or text

PROGR

digital channels

Normal teletext services may also be available on other digital

display on your TV screen, superimposed on the channel you are

watching.

1. Press the

RM-888

Selecting teletext from the other

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’.

B or b buttons, the coloured buttons and/or the numbered

buttons to access the chosen information.

2. Alternatively, you may be requested to use the numbered and

3. Once the text information is displayed on screen, use the

and then select an alternative digital channel.

4. When you have finished viewing teletext, press the button

available.

information available and/or the coloured buttons for the

your remote control to display any text service which may be

functions shown on screen.

button to return to normal TV.

On other channels there may be no on-screen symbol, but you can

2. Press the numbered buttons to select the various pages of

see if there is a digital service as follows:

1. When watching a digital TV channel, press the button on

3. When you have fini shed using the text service, press the

26

25

TELETEXT

Index

Programme

News

Sport

Weather

25

153

101

98

TELETEXT

Index

Programme

News

Sport

Weather

the remote control to select the channel which carries the

teletext service you wish to receive.

Selecting Teletext

1. When viewing analogue channels press a numbered button on

2. Press the on the remote control to switch on teletext. Press

Viewing standard teletext

Teletext

Teletext is an information service transmitted by most TV stations.

the TV screen.

the button again if you wish to superimpose teletext on to

2 345 6
1

3. Select your required page using the numbered buttons on the

remote control. If you make an error, complete the number , then

9

8

7

re-enter the correct page number.

4. Press the button to switch off teletext.

Using Other Standard Teletext Functions

To move to the next or preceding page

To freeze a Teletext page

Press the or buttons to select the previous or next page.

Press the button to freeze the page. Press again to cancel the

freeze.

Revealing concealed information (eg:answers to a quiz).

MENU

0

PROGR

When the colour coded menu appears at the bottom of a page, press

Press the button to reveal information. Press again to conceal the

information.

the colour buttons (red, green, yellow or blue) on the remote control

Using colour buttons to access pages (Fastext)

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 coded menu 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 page s.

RM-888

1. Press the butto n to display teletext.

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.

2. Press the coloured buttons to search for the page you desire:

3. Press the button twice to return to normal TV.

13

/

your aerial at.

•Power off.

• 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.

• Fault (irregular flash).

• Digital mode Timer Record active (regular flash).

• Volume control.

• Programme not being transmitted.

• Programme used only for data (no picture or sound).

• Scrambled/subscription-only channel.

• The button marked on the rear of the TV is pressed in.

• The TV has been set up to receive Dolby Pro Logic.

• Colour level setting.

• Wrong external mo de selected on an RGB video source.

• Batteries low.

• Inputs from external equipment not switched off.

remote control.

• Press the button on the front of the TV.

• Plu g in the TV.

• If the indicator is on press the button or a numbered button on the

• Tune in the analogue channels available using th e ‘Manually tuning the TV’

• Select on the TV menu system then adjust the brightness, picture and colour

• Check the aerial connection.

instruction in this manual, then contact a local installer to find out when digital

balance levels.

a local installer)

transmissions begin in your area.

• Contact a local installer to find out which transmitter you should be pointing

• Upgrade to a hi gher gain aerial.

• Ensure aerial is correctly aligned to transmitter.

• Ensur e aerial is plugged direct ly into the TV (not through other equipment).

• See ‘Re-arranging the TV chann els’ section.

• Do not open the cabinet, refer to qualified personnel.

• Change your aerial to cover the channels used by digital pro gra m mes. (Co n tact

• Contact your nearest Sony Service Centre.

• Subscribe to pay-per-view broadcaster.

• See ‘Ski pping programme positions’ section.

screen.

• Press the + button on the remote control.

• If is displayed on the screen, press the butto n on the remote control.

• Press the button repeatedly until the RGB symbol is displayed on

• Select on the TV menu system then adjust the colour setting.

Troubleshooting

Additional Information

Problem Cause

No picture, no sound.

Poor or no picture (screen is dark), but good sound.

No picture on any channel after digital tuning.

Here are some simple solutions to problems which may affect the picture and sound.

Some channels are blank.

Good Picture, no sound.

Standby indicator flashing.

No head phone output and no ou tput from th e a udio

sockets marked on the rear of the TV.

Poor picture quality.

No colour on colour programmes.

Remote control does not func tio n .

Distorted picture when changing programmes or

selecting Teletext.

Cause • Solution

TV in standby.

Aerial disconnected.

Power off.

Picture level adjustment.

are currently using.

Unsuitable aerial.

Weak signal.

No digital transmissions in yo ur area.

No digital transmissions from the transmitter you

Scrambled/subscription-only channel.

Programme information without picture or sound.

Fault.

Volume control.

Wrong external mode selected.

you can contact the Sony UK Digital HelpLine on 0870 600 1717.

Colour level setting.

• If you continue to have these problems, have your TV serviced by qualified personnel or

• NEVER open the casing yourself.

34

33

Additional Information

Specifications

21-pin Euro connector (CENELEC st andard) including audio/video

Audio outputs - phono jacks

Video input -phono jack

Audio inputs - phono jack s

S video input - 4 pin DIN

Front Terminals

Headphones jack - minijack stereo

2

2

s

Sound output

Left/Right: 2x 20W (music power)

KV-28DX30U: 136W

Power consumption

KV-32DX30U: 134W

KV-28DX30U: Approx. 796x518x522mm

KV-32DX30U: Approx. 883x567x562mm

Weight

Dimensions (wxhxd)

KV-28DX30U: Approx. 44kg

KV-32DX30U: Approx. 62kg

RM-888 remote control (1)

Accessories supplied

Other features

IEC designated size AA battery (2)

Design and specifications are subject to change without notice.

Teletext

Dolby ProLogic Surround System

Smartlink

21-pin Euro connect or (CENELEC standard) including a udi o/video

input, RGB input, TV audio/video output.

input, S-video input, selectable audio/video output.

input, selectable aud i o/ vi deo output.

2

s

/ 21-pin Eu ro connector (CENELEC standard) including audio/video

2

3

UHF:B21-B69

Picture tube

KV-28DX30U

Channel coverage

Colour system

PAL

NTSC 3.58, 4.43 (only Video in)

I/DVB-T

TV system

Approx. 71cm (28inches) (Approx. 66cm picture measured diagonally), 102° deflectio n

FD Trinitron WIDE

KV-32DX30U

1

Approx. 82cm (32 inches) (Approx. 76cm picture measured diagonally), 102° deflection

FD Trinitron WIDE

Rear Terminals

MODEM Modem connection

14

SECTION 2 DISASSEMBLY

2-1. Rear Cover Removal

<=

<=

=>

=>

=>

=>

Remove the rear cover f ixing 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 .

<=

<=

2-3. N Board Removal

<=

Shield
Case

<=

Clip

T o remov e the N Board f irst pull the shield case sho wn
vertically . The clip circled can then be released and the board
gently removed.

2-2. Chassis Removal and Refitting

T o 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.

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.

15

2-4. Service Position

Position the chassis as indicated to access the solder side. T o gain access to the D Board follo w the instructions on page 19. [Remov al and
Replacement of the main bracket bottom plates ].

2-5. A Board Removal

T o remove the A 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

T o gain test access to the A Board remov e the board and plug in
the extension board. The A board can then be plugged into the
extension board to allow testing.

16

2-7. Side Control Module Removal

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

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

2-9. F4 and H8 Board Removal

T o remove the F4 and H8 Boards release the clips circled and
ease the boards gently away from the support bracket.

Clips

Clips

17

 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

8

10

1

9

7

3

2

6

5

4

1. Discharge the anode of the CR T and remove the anode cap.

2. Unplug all interconnecting leads from the Deflection yoke, neck
assy, de gaussing coils and CRT grounding strap.

3. Remove the C Board from the CR T.

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 f ace down on a cushion and remov e
the Degaussing Coil holders.

8. Remove the Degaussing Coils.

9. Remove the CR T grounding strap and spring tentioners.

10. Unscrew the four CRT fixing screws [ located on each CRT
corner ] and remove the CR T .
[T ake care not to handle the CR T by the neck.]

5HPRYDO RI WKH $QRGH&DS

* REMOVING PROCEDURES.

a

1

Turn up one side of the rubber cap in
the direction indicated by the arrow a

b

2 Using a thumb pull up the rubber cap
firmly in the direction indicated by the
arrow b

+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.

c

b

Anode button

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

18

ATTENTION

4

ATTENTION

other

4

Fig 4

AFTER CUTTING AWAY FOR THE SAFETY REASON.

THIS PLATE MUST BE REMOVED

Catch

3

44

1

2

2

FOR SAFETY REASONS
AFTER CUTTING AWAY

(TURN 180' NOT FLIP OVER)

THIS PLATE MUST BE REMOVED

ATTENTION

Tab

NUMERICAL MARKINGS

.

For safety reasons, on no account should the plates be

removed and not refitted after servicing.

REFITTING REFITTING

£

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

(2) REFITTING THE PLATES

tabs to be fitted into their catch positions.

1

22

Fig 2

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.

REMOV AL AND REPLA CEMENT OF THE MAIN-BRACKET

BOTT OM PLA TES.

1

2

1

Only remove the necessary plate to gain access to the printed wiring board.

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.

(1) REMOVING THE PLATES

Note : There are 4 plates fitted to the main bracket and secured by3 gates.

Cut points

2

FOR SAFETY REASONS

AFTER CUTTING AWAY

(TURN 180' NOT FLIP OVER)

THIS PLATE MUST BE REMOVED

ATTENTION

22

Fig 1

19

MAIN BRACKET

INSERT FROM

THE BOTTOM

FIG 3

SIDE

SECTION 3 SET -UP ADJUSTMENTS

• 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

3-1. Beam Landing

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 de g ausser .

(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 the Y -splitting axis cor rection 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.

Fig.3-1

Y-splitting axis correction magnet

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.

(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]

Fig.3-2

20

Fig.3-3

G1

G2

Neck assy

+

G3

Align the edge
of the neck assy with
the edge of the G2 grid
on the G3 side.

Fig.3-4

Purity magnets

Align pips on
each magnet

GREEN

RED

Align both Purity magnets
to the vertical position

BLUE

Purity control magnets

3-2. Con vergence

(1) Screen centre convergence [Static convergence]

1. Input a dot pattern signal from the pattern generator .

2. Normalize the picture setting.

3. [Moving vertically], adjust the V.STAT magnet so that the
vertical red, green and blue dots coincide at the centre of the
screen.

Center dot

R
G
B

)LJ

Disk Magnets

Purity control corrects
this area

a

cd

b

Deflection yoke positioning
corrects these areas

Disk magnets or
rotatable disk
magnets correct
these areas (a-d)

R

G

B

H STAT

convergence

control

V.STAT Vertical Static Magnet

C Board

RV701 (H STAT)
H STAT Convergence
(on mount side)

By opening or closing the V.ST AT magnet, the red green and blue
dots move in the direction indicated below.

B

G

R

B

G

R

Note: Do not adjust the H.STAT by rotating the V.STAT

magnets as this can affect the focus setting.

21

4. Correction for HMC [Horizontal mis-convergence] and VMC
[V ertical mis-con ver gence] by using the BMC [Hexapole] magnet.

a). HMC correction by BMC [Hexapole] magnet and movement of

the electron beam.

HMC correction(A) HMC correction(B)

A > B

A < B

RG B

RGB

HTIL correction can be performed by adding a THL correction
assembly to the Deflection yoke.

A = B

RG B

A = B

RG B

b). VMC correction by BMC [Hexapole] magnet and movement of

the electron beam.

VMC correction(A) VMC correction(B)

C < D

C
D

C = D C > D C = D

R

G
B

R

C

G

D

B

R
G

B

R
G

B

HAMP Adjustment

YCH Adjustment

+

+

+

YCH VR

Deflection Yoke

TL V Adjustment

TLV VR

+

+

+

Deflection Yoke

Adjust the HAMP using HAMPL and HAMPR registers in the
Dynamic Convergence section of the service menu.

HTIL Adjustment

THL Correction assy

H-TRAP Adjustment

+

+

HTRAP VR

+

Deflection Yoke

The H-TRAP should not be adjusted unless absolutely necessary as it
affects the TLV settings.

22

Layout of each control

Purity magnet
BMC (Hexaploe) magnet
V STAT convergence magnet
Y-splitting axis correction magnet

3-3. Focus, Screen (G2) Adjustment

1. Receive a television broadcast signal.

2. Normalize the picture setting.

3. Adjust the focus control located on the flyback transformer to
obtain the best focus at the centre of the screen.
Bring only the centre area of the screen into focus, the magenta­ring appears on the screen. In this case, adjust the focus to
optimize the screen uniformly.

Note : If you are unable to adjust the corner converg ence properly ,

this can be corrected with the use of permalloy magnets.

a

a-d: screen-corner
convergence defect

c

Install the permalloy assembly
for the area that needs correcting.

b

d

a

b

Permalloy Assy
X-4387-214-1

Focus
Control

Screen
(G2)

G2 adjustment [RV5376]

1. Input a dot signal from the pattern generator.

2. Set the Picture, Brightness and Colour to minimum.

3. Apply 170V DC from an external power supply to the R, G and B
cathodes of the CRT .

4. Whilst watching the picture, adjust the G2 control R V5376
[SCREEN] located on the C Board to the point just before the
flyback return lines disappear.

3-4. White Balance Adjustment

[Adjustment in the service mode using the remote
commander]

White balance adjustment for TV mode

1. Input an all-white signal from the pattern generator.

2. Enter into the ‘Service Mode’ by pressing ‘TEST’, ‘TEST’ and
‘MENU’ on the Service Commander.

3. Select ‘Picture Adjustment’ from the on screen menu display and
press the joystick to the right.

4. The ‘Picture Adjustment’ menu will a ppear on the screen.
[See Page 24]

5. Select ‘Sub Contrast’ and adjust to 7.

6. Adjust the ‘G-Drive’ and the ‘B-Drive’ so that the white
balance becomes optimum.

7. Press the ‘TV’ button on the remote commander to return to TV
operation.

d

Convergence adjustment with permalloy

c

23

SECTION 4

CIRCUIT ADJUSTMENTS

4-1.ELECTRICAL ADJUSTMENTS

Service adjustments to this model can be performed
using the supplied Remote Commander R M- 888.

HOW TO ENTER INTO SERVICE MODE

1. Turn on the main power switch and enter into the stand-by
mode.

2. Press the following sequence of buttons on the Remote
Commander.

+

(ON SCREEN
DISPLAY)

• ‘TT--’ will appear in the upper right corner of the
screen.
Other status information will also be displayed.

3. Press ‘MENU’ on the remote commander to obtain the
following menu on the screen.

5

(DIGIT 5) (VOLUME +) (TV)

+

PICTURE ADJUSTMENT

AFC mode 1
REF position 3
SCP BGR 1
SCP BGF 1
Trap fo 9
Sub contrast Adj
Sub colour Adj
Sub brightness Adj
Green drive Adj
Blue drive A dj
Green cutoff Adj
Blue cutoff Adj
Gamma 0
Pre / overshoot 0
Y delay 3
D Pic ON/OFF
D Colour ON/OFF
DC Transfer ON/OFF

TEST MENU

> Picture Adjustment
Geometry
Wide
IC status
MSP
Dynamic Convergence
Current TV status

4. Move to the corresponding adjustment using the button on the
remote commander.

5. Press the + button to enter the selected adjustment.

6. Turn off the power to quit the service mode when adjustments
have been completed.

GEOMETRY ADJUSTMENT - 4:3

V size Adj
V position Adj
S Correction Adj
V Linearity A dj
H size Adj
H position Adj
Pin Amp Adj
Pin Phase Adj
AFC Bow Adj
AFC Angle Adj
EHT V 1
EHT H 0
Lo Corn Pin Adj
Up Corn Pin Adj

WIDE ADJUSTMENT - 4:3

V Aspect 0
V Scroll 25
Upper V Lin 0
Lower V Lin 0
Left Blanking 1
Right Blanking 11

24

IC STA TUS (CXA203452 / CXA2040)

Dynamic Convergence

CXA2034526
H lock 1
IKR 1
V NG 0
X-RAY 0
Colour system 7
CV1 sync 0

CXA2040
Sync sep 0
S1 mode pin 01
S2 mode pin 01

PORT EXPANDER
Power Good 1

TUNER
Tuner status 01101011

TV STATUS BE3E

Text system C TEXT- 2
Dolby Enabled YES
DSP Present NO
Text language set WEST
Menu language set WEST
Destination UK
Ageing DISABLED
Auto Shut Off ENABLED
Size 28/32
Colour trap sw ALL
Velocity mod ON
AFT STATUS
Digital RF YES
Attenuation OFF

Range Adj Off - 42
H stat Adj Off - 63
H amp l Adj Off - 63
H amp r Adj Off - 63
Up Y Adj Off - 63
Low Y A dj Off - 63
Y up l Adj Off - 63
Y up r Adj Off - 63
Y low l Adj Off - 63
Y low r Adj Off - 63
Mbow up l Adj Off - 63
Mbow up r Adj Off - 63
Mbow low l A d j Off - 63
Mbow low r Adj Off - 63
V Stat Ad j Off - 63

SUB BRIGHTNESS ADJUSTMENT

1. Input a Phillips pattern.

2. Set the picture control to minimum.

3. Enter into the ‘Picture Adjustment’ service menu.

4. Adjust the ‘Sub-Brightness’ data so that there is barely a
difference between the 0 IRE and 10 IRE signal levels.

SUB CONTRAST ADJUSTMENT

1. Input a video that contains a small 100% area on a black
background.

2. Set the picture control to maximum.

3. Connect an oscilloscope to Pin 3 of CN301 [A Board].

4. Enter into the ‘Picture Adjustment’ service menu.

5. Adjust the ‘Sub-contrast’ data to obtain a black to white
amplitude of 2.20V.

SUB COLOUR ADJUSTMENT

1. Receive a PAL colour bar video signal.

2. Connect an oscilloscope to Pin 3 of CN301 [A Board].

3. Enter into the ‘Picture Adjustment’ service menu.

4. Adjust the ‘Sub-colour’ data so th at the Cyan, Magenta and
Blue colour bars are of equal height as indicated below.

Same Level

Micro/Jungle SDA30C263/MSP3452

B-Out Wavef orm

Note: The data indicated in the ‘TV STATUS’ table is

dependant on destination, screen size and country.

25

I.F ADJUSTMENT

1. Input an off air signal of between 60-100dBuV / 75 ohm
terminated, via the tuner socket.

2. Enter into the ‘IF Adjustment’ service mode [i.e ‘TT59’] to f ix
the I.F frequency to 39.9MHz.

3. Enter into the service mode and select ‘Current TV status’.

4. Adjust the I.F coil [LV01] until the ‘AFT Status’ indicates a
‘Window’ condition.

STUNER AGC ADJUSTMENT

1. Receive a signal of 63dBuV / 75 ohm terminated, via the tuner
socket.

2. Measure the voltage at test point 1 [A Board].

3. Adjust RV01 control to obtain a voltage of 3.0V +/- 0.3V.

LV01 RV01

TP1

A

DEFLECTION SYSTEM ADJUSTMENT

1. Enter into the ‘Geometry Adjustment’ service menu.

2. Select and adjust each item in order to obtain the optimum
image.

GEOMETRY ADJUSTMENT

V size Adj
V position Adj
S Correction Adj
V Linearity A dj
H size Adj
H position Adj
Pin Amp Adj
Pin Phase Adj
AFC Bow Adj
AFC Angle Adj
EHT V 1
EHT H 0
Lo Corn Pin Adj
Up Corn Pin Adj

TUNER / IF

V SIZE

V LIN

S CORRECTION

V CENTRE

H SHIFT

H SIZE

PIN AMP

TILT

CORNER PIN

26

V ANGLE