Sony KV-28CS70B, KV-28CS70E, KV-28CS70U, KV-32CS70B, KV-32CS70E Service Manual

SERVICE MANUAL

AE-6B

CHASSIS

MODEL

KV-28CS70B
KV-28CS70E
KV-28CS70U

COMMANDER DEST CHASSIS NO.

RM-947 FR SCC-R33A-A

RM-947 ESP SCC-R31D-A

RM-932 UK SCC-Q84X-A

MODEL

KV-32CS70B
KV-32CS70E
KV-32CS70K
KV-32CS70U

COMMANDER DEST CHASSIS NO.

RM-947 FR SCC-Q83X-A

RM-947 ESP SCC-R31A-A

RM-947 OIRT SCC-Q82N-A

RM-932 UK SCC-Q84W-A

KV-28/32CS70

- 1 -

RM-932

RM-947

TABLE OF CONTENTS

Section Title Pag e Section Title Pag e

Caution .................... 3

Specifications .................... 4

Connectors .................... 5

Self Diagnostic Software .................... 6

1. GENERAL

Switching On the TV and

Automatically Tuning .................... 7

Introducing and Using the Menu

System .................... 8

Menu Guide .................... 8

Teletext .................... 10

Fastext .................... 10

Connecting Additional Equipment ............... 11

Lifting the TV Set .................... 11

Specifications .................... 12

Troubleshooting .................... 12

2. DISASSEMBLY

2-1. Rear Cover Removal .................... 13

2-2. Service Position .................... 13

2-3. Chassis Removal and Refitting .................... 13

2-4. G Board Removal .................... 14

2-5. M Board Removal .................... 14

2-6. Service Connector for M Board.................. 14

2-7. Wire Dressing .................... 14

2-8. Picture Tube Removal .................... 15

Bottom Plates .................... 16

5. DIAGRAMS

5-1. Block Diagrams (1) .................... 24

Block Diagrams (2) .................... 25

Block Diagrams (3) .................... 26

5-2. Circuit Board Location .................... 26

5-3. Schematic Diagrams and

Printed Wiring Boards .................... 26

* A Board Schematic .................... 27

* A Board PWB .................... 34

* F5 Board Schematic .................... 37

* F5 Board PWB .................... 38

* H6 Board Schematic .................... 37

* H6 Board PWB .................... 38

* VM Board Schematic .................... 37

* VM Board PWB .................... 36

* G Board Schematic .................... 39

* G Board PWB .................... 38

* D Board Schematic .................... 40

* D Board PWB .................... 41

* C Board Schematic .................... 42

* C Board PWB .................... 43

* M Board Schematic .................... 44

* M Board PWB .................... 43

5-4. Semiconductors .................... 45

5-5. IC Blocks .................... 48

6. EXPLODED VIEWS

3. SET-UP ADJUSTMENTS

3-1. Beam Landing .................... 17

3-2. Convergence .................... 18

3-3. Focus Adjustment .................... 20

3-4. Screen (G2), White Balance .................... 20

4. CIRCUIT ADJUSTMENTS

4-1. Electrical Adjustments .................... 21

4-2. Test Mode 2 .................... 23

CAUTION

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP.

WARNING !!

AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY SHADING AND MARKED
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

6-1. Chassis .................... 50

6-2. Picture Tube .................... 51

7. ELECTRICAL PARTS LIST .................... 53

ATTENTION

APRES AVOIR DECONNECTE LE CAP DE’LANODE,
COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET
CELUI DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE
L’APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE
TUBE CATHODIQUE OU AU BLINDAGE DU TUBE
CATHODIQUE.

ATTENTION !!

AFIN D’EVITER TOUT RISQUE D’ELECTROCUTION
PROVENANT D’UN CHÁSSIS SOUS TENTION, UN
TRANSFORMATEUR D’ISOLEMENT DOIT ETRE UTILISÈ LORS
DE TOUT DÈPANNAGE LE CHÁSSIS DE CE RÈCEPTEUR EST
DIRECTMENT RACCORDÈ Á L’ALIMENTATION SECTEUR.

ATTENTION AUX COMPOSANTS RELATIFS Á

LA SECURITÈ!!

LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE SUR LES SCHÈMAS DE PRINCIPE, LES VUES
EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPOR-

TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT,
NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT
LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT
MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.

- 2 -

CAUTION

Lead Free Soldered Boards

The circuit boards listed below [Table 1] used in these models
may have been processed using Lead Free Solder. The boards are
identified by the LF logo located close to the board designation
e.g. F1, H1 etc [ see examples ]. The servicing of these boards
requires special precautions to be taken as outlined below.

Table 1

draoB noitcnuF

example 1

example 2

A

CtuOB,G,R

5FDEL/SCRIS/nICA

6HenohpdaeH/tupnIVAtnorF

MVnoitaludoMyticoleV

oiduA,srossecorPoiduA&oediV

noitcelfeDlacitreV,tuptuO

It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is
available under the following part numbers :

rebmuntraP retemaiD skrameR

91-500-046-7mm3.0gK52.0
02-500-046-7mm4.0gK05.0
12-500-046-7mm5.0gK05.0
22-500-046-7mm6.0gK52.0
32-500-046-7mm8.0gK00.1
42-500-046-7mm0.1gK00.1
52-500-046-7mm2.1gK00.1
62-500-046-7mm6.1gK00.1

Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This
requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.

For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com

- 3 -

How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.

FUSE

METI

LEDOM

BL,I,K/D,H/G/B

EK/D,H/G/B

KK/D,H/G/B

UI oeretSMACIN96B-12B:FHU

ebuTerutciP

rotcennocoruEnip-12:1

)dradnatsCELENEC(

rotcennocoruEnip-12:2

rotcennocoruEnip-12:3

skcaJonohPoiduArofelbairavsrotcennoCtuptuO

kcajenohpdaeHkcajinimoerets
stupnioiduAskcajonohp
stupnioediVskcajonohp

tupnioediVSNIDnip4

metsySnoisiveleT metsySoeretS egarevoClennahC metsySroloC

MACIN/NAMREG

oeretS

MACIN/NAMREG

oeretS

MACIN/NAMREG

oeretS

:EDIWnortinirTDFyalpsiDtalF

)sehcni82(mc17xorppA

derusaemerutcipmc66xorppA(

07SC82-VK)yllanogaid

)sehcni23(mc28xorppA

derusaemerutcipmc67xorppA(

07SC23-VK)yllanogaid

]RAER[slanimreTtuptuO/tupnI snoitacificepSlareneG

.slangisoediVdnaoiduArofstupnI

.BGRrofstupnI

.slangisoediVdnaoiduArofstupnI

.BGRrofstupnI

)tuOrotinoM(

.slangisoediVdnaoiduArofstupnI

.oediVSrofstupnI

)elbatceles(

slangiS

]EDIS[slanimreTtuptuO/tupnI lortnoCderarfnI:metsySlortnoCetomeR

Q-B,01F-20F,30S-10S,21R-1R,21E-2E:FHV

02S-10S:VTELBAC

14S-12S:REPYH

30S-10S,21R-1R,21E-2E:FHV

96R-12R,96E-12E:FHU

02S-10S:VTELBAC

14S-12S:REPYH

30S-10S,21R-1R,21E-2E:FHV

96R-12R,96E-12E:FHU

02S-10S:VTELBAC

14S-12S:REPYH

tuptuodnuoS

rekaepstfeLdnathgiR

refooWbuS

stnemeriuqeRrewoPV042-022

.slangisoiduAdnaoediVVTfostuptuO

.slangisoiduAdnaoediVVTfostuptuO

.slangisoiduAdnaoediVVTfostuptuO

thgieW

noitpmusnoCrewoP

snoisnemiD

seirosseccAdeilppuS

serutaeFrehtO

stnemeriuqerrewoP

96R-12R,96B-12B,96F-12F,96E-12E:FHU

cdV3

)AAezis(6R

.ecitontuohtiwegnahcottcejbuserasnoitacificepsdnangiseD

MACES,LAP

85.3CSTN,34.4CSTN

)NIOEDIV(

MACES,LAP

85.3CSTN,34.4CSTN

)NIOEDIV(

MACES,LAP

85.3CSTN,34.4CSTN

)NIOEDIV(

MACES,LAP

85.3CSTN,34.4CSTN

)NIOEDIV(

)SMR(W01x2)rewoPcisuM(W02x2

)SMR(W51x1)rewoPcisuM(W03x1

)07SC82-VK(W4.0/W49

)07SC23-VK(W4.0/W201

)07SC82-VK(mm845x715x448xorppA
)07SC23-VK(mm275x265x339xorppA

)07SC82-VK(gk5.34xorppA

)07SC23-VK(gk06xorppA

)1(rednammoCetomeR239-MR

)U07SC23-VK/U07SC82-VK(

)1(rednammoCetomeR749-MR

)K,E,B07SC23-VK/E,B07SC82-VK(

)2(yrettab6RdetangisedCEI

,remiTpeelS,txeteleT,erutcipzH001

,)noitallatsnIlennahCotuA(ICA,kniltramS

tamrofotuA,EBB,lautriVybloD

noitangisedCEIseirettab2

metI

PIPFFOFFOFFOFFO

emaNledoM

bmoClaPFFOFFOFFOFFO

ytiroirPBGRNONONONO

xoBrefooWNONONONO
1tracSNONONONO
2tracSNONONONO
3tracSNONONONO

)4(nitnorFNONONONO

4tracSFFOFFOFFOFFO

rotcejorPFFOFFOFFOFFO
G/BmroNNONONOFFO

ImroNNOFFOFFONO

K/DmroNNONONOFFO

SUAmroNFFOFFOFFOFFO

LmroNNOFFOFFOFFO

TASmroNFFOFFOFFOFFO

MmroNFFOFFOFFOFFO

txeteleTNONONONO

oeretSmaciNNONONONO

B07SC82-DK

~

B07SC23-DK

E07SC82-DK

~

E07SC23-DK

K07SC23-DK

WARNING (UK Models only)

U07SC82-DK

~

U07SC23-DK

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

ASA

that carries the

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.

T

mark.

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.

- 4 -

21 pin connector

21

19

17

15

13

11

9

7

5

3

1

20

18

16

14

12

10

8

6

4

2

Pin No 1 2 4 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)

14 Ground (blanking)

15

16 Blanking input

17 Ground (video

18 Ground (video

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

20

21 Common ground

3

(right)

Audio input B
(right)

Audio output A
(left)

(left)

(AV control)

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

_ (S signal Chroma

input)

(Ys signal)

output)

input)

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

_ Video input

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 impedence : 75 ohms

(-3+10dB)

(-3+10dB)

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

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

Rear Connection Panel Side Connection Panel

S-Video

socket

noitarugifnocniptekcosoediVS

niP

oN

1dnuorG-

2dnuorG-

3tupni)langisS(Y,mho57Bd3-/+V1

4tupni)langisS(CBd3-/+V3.0

langiS leveLlangiS

V3.0.cnySevitisop

Bd01+3-

evitisop,mho57

.cnyS

- 5 -

AE-6B SELF DIAGNOSTIC SOFTWARE

The identification of errors within the AE-6B chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the
event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous
flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant
device number will be displayed through the LED (Series of flashes which must be counted) See table 1, non fatal errors are reported using this
method.
Each time the software detects an error it is stored within the NVM. See Table 2.

Table 1

egasseMrorrE

rorreoN00

devreseR10

)noitcetorPtnerruCrevO(PCO20

noitcetorPegatloVrevO30

cnySlacitreVoN40

norewoptarorrERKI50

norewoptaegdelwonkcasubCIIonMVN70

noitcetorPlatnoziroH80

norewoptaegdelwonkcaonrenuT90

rorrErossecorPdnuoS01

devreseR11

rorrEetarnacS21

rorrECAD31

rorrEdnekcaB41

rorrEecnegrevnoCcimanyD51

rorrEPIP61

Flash Timing Example : e.g. error number 3

norewoptawolsenilatadro/dnakcolcsubCII60

How to enter into Table 2

DEL

edoC

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.

i+

(ON SCREEN (DIGIT 5) (VOLUME +) (TV)
DISPLAY)

5

+

‘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

Service menu on the screen.

4. Using the Remote Commander, Scroll to the ‘Error Menu’

item using the down arrow key, then press the right arrow
key.

5. The following table will be displayed indicating the error

count.

Table 2

StBy LED

ON ON ON

OFF

OFF

UNEMRORRE

20E
30E
40E
50E
60E
70E
80E
90E
01E
11E
21E
31E
41E
51E
61E

SRUOH

SETUNIM

PCO

PVO

CNYSV

RKI

CII

MVN

TORPH
RENUT

PDNUOS

­ETARNACS

CAD

DNEKCAB

-

PIP

EMITGNIKROW

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

3

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

1

)552,0(

1

)552,0(

1

)552,0(

0

)552,0(

0

41

3

Note: To clear the error count data press ‘80’ on the Remote
commander.

- 6 -

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.

- 7 -

Switching on the TV and Automatically Tuning

The first time you switch on your TV, a sequence of menu screens appear on the TV enabling you to:

1) choose the language of the menu screen, 2) adjust the picture slant 3) search for and store all
available channels (TV Broadcasts) and 4) change the order in which the channels (TV Broadcasts)
appear on the screen.
However, if you need to change any of these settings at a later date, you can do that by selecting the
appropriate option in the (Set Up menu) or by pressing the Auto Start Up Button on the TV set.

Connect the TV plug to the mains socket (220-240V AC, 50Hz).

1

The first time that the TV set is connected, it is usually turned on.
If the TV is off, press the on/off button on the TV set to turn on
the TV.
The first time you switch on the TV, a Language menu appears
automatically on the TV screen.

Press the v or V button on the remote control to select the

2

language, then press the OK button to confirm your selection.
From now on all the menus will appear in the selected language.

Because of the earth’s magnetism, the picture might slant. The

3

Picture Rotation menu allows you to correct the picture slant if it

is necessary.

a)

If it is not necessary, press the v or V button to select Not
necessary and press OK.

b)

If it is necessary, press the v or V button to select Adjust now,

then press OK and correct any slant of the picture between –5
and +5 by pressing the v or V button. Finally press OK to store.

The Auto Tuning menu appears on the screen. Press the OK

4

button to select Yes.

Language

i

v

Svenska
Norsk
English
Nederlands
Français
Italiano

i

V

Select Language:

If picture slants, please

adjust picture rotation

Not necessary

Adjust now

Do you want to start

automatic tuning?

Yes
No

OK

OK

OK

GB

Switching on the TV and Automatically Tuning

The TV starts to automatically search and store all available

5

broadcast channels for you.

This procedure could take some minutes. Please be patient
and do not press any buttons, otherwise the automatic tuning
will not be completed.

If no channels were found during the auto tuning process then
a new menu appears automatically on the screen asking you
to connect the aerial. Please connect the aerial (see page 6)
and press OK. The auto tuning process starts again.

After all available channels are captured and stored, the

6

Programme Sorting menu appears automatically on the

screen enabling you to change the order in which the
channels appear on the screen.

a)

If you wish to keep the broadcast channels in their tuned order,
go to step 7.

b)

If you wish to store the channels in a different order:
1 Press the v or V button to select the programme number that

has the channel (TV Broadcast) you wish to rearrange, then
press the b

2 Press the v or V button to to select the new programme

number position for your selected channel (TV Broadcast),
then press the B button.

3 Repeat steps b)1 and b)2 if you wish to change the order of

the other channels.

Press the MENU button to remove the menu from the screen.

7

Your TV is now ready for use.

button.

Auto Tuning

Programme: 01

System: I

Channel: C21

Searching...

No channel found

Please connect aerial

Confirm

OK

Programme Sorting

Programme:
01 BBC ONE
02 BBC 2
03 ITV 1
04 CH 4
05 Five
06 ITV 2

Select channel:
Exit:

MENU

Programme Sorting

Programme:
01 BBC ONE
02 BBC 2
03 ITV 1
04 CH 4
05 Five
06 ITV 2

Select new position:

MENU

Exit:

OK

OK

MENU

SECTION 1 GENERAL

First Time Operation

continued...

8

7

First Time Operation

Introducing and Using the Menu System

Introducing and Using the Menu System

- 8 -

Your TV uses an on-screen menu system to guide you through the operations. Use the following
buttons on the Remote Control to operate the menu system:

Press the MENU button to switch the first level menu on.

1

• To highlight the desired menu or option, press v or V button

2

• To enter to the selected menu or option, press b.

• To return to the last menu or option, press B

• To alter the settings of your selected option, press v/V/B or b.

• To confirm and store your selection, press the OK button.

Press the MENU button to remove the menu from the screen.

3

.

.

MENU

MENU

Menu Guide

Level 1 Level 2 Level 3 / Function

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

OK

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

PICTURE ADJUSTMENT

The “Picture Adjustment” menu allows you to alter
the picture adjustments.

To do this:

OK

After selecting the item you want to alter press the b
button, then repeatedly press the v/V/B or b buttons
to make any adjustments and finally press the OK
button to store.

This menu also allows you to customise the picture
mode based on the programme you are watching:

v Personal (for individual settings).
v Live (for live broadcast programmes, DVD and

Digital Set Top Box receivers).

v Movie (for films).

GB

Level 1 Level 2 Level 3 / Function

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Sound Adjustment

Effect: Natural
Treble
Bass
Balance
Reset
Dual Sound: Mono
Auto volume: On

Effect bvNatural: Enhances clarity, detail and presence of sound by using the “BBE

v Dynamic: “BBE High Definition Sound system”* intensifies clarity and presence

OK

Sound Adjustment

Effect: Natural
Tre bl e
Bass
Balance
Reset
Dual Sound: Mono

OK

Auto volume: On

High Definition Sound system”*.

of sound for better intelligibility and musical realism.

SOUND ADJUSTMENT

The “Sound Adjustment” menu allows you to alter the
sound settings.

To do this:
After selecting the item you want to alter press the b
button, then repeatedly press the v/V/B or b buttons
to make any adjustments and finally press the OK
button to store.

OK

v Dolby**Virtual: Simulates the sound effect of “Dolby Surround Pro Logic”.

v Off: Flat response.

Treble bBLess b More

Bass bBLess b More

Balance bBLeft b Right

Reset Resets the sound to the factory preset levels.

Dual Sound b • For a stereo broadcast:

Auto VolumebvOff: volume level changes according to the broadcast signal.

K

v Mono.
v Stereo.

• For a bilingual broadcast:

v Mono (for mono channel if available).
v A (for channel 1).
v B (for channel 2).

v On: volume level of the channels will stay the same, independent of the broadcast

signal (e.g. in the case of advertisements).

• Brightness, Colour and Sharpness can only be altered if “Personal” mode is selected.

• Hue is only available for NTSC colour signal (e.g: USA video tapes).

• Select Reset and press the OK button to return the picture settings to their factory preset levels.

Menu System

continued...

• If you are listening to the TV through headphones, the “Effect” option is automatically switched to “Off”.

• If you select “Dolby Virtual” in the “Effect” option, the “Auto Volume” option is automatically switched to
“Off” and vice versa.

* The “BBE High Definition Sound system” is manufactured by Sony Corporation under license from

BBE Sound, Inc. It is covered by U.S. Patent No. 4,638,258 and No. 4,482,866. The word “BBE” and
BBE Symbol are trademarks of BBE Sound, Inc.

**This TV has been designed to create the “Dolby Surround” sound effect by simulating the sound of

four speakers with only two speakers, when the broadcast audio signal is Dolby Surround encoded.
The sound effect can also be improved by connecting a suitable external amplifier (for details refer
to “Connecting to external audio Equipment” on page 19).

**Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol

are trademarks of Dolby Laboratories.

continued...

10

9

Menu System

Introducing and Using the Menu System

Introducing and Using the Menu System

- 9 -

Level 1 Level 2 Level 3 / Function

SLEEP TIMER

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Timer

Sleep Timer: Off

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

OK

Timer

Sleep Timer: Off

OK

OK

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset

OK

OK

OK

Detail Set Up

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

The “Sleep Timer” option in the “Timer” menu allows
you to select a time period for the TV to automatically
switch itself into the standby mode.

To do this:
After selecting the option, press the
press the v or V button to set the time period delay
(max. of 4 hours) and finally press the OK button to
store.

• While watching the TV, you can press the
button on the remote control to display the time

remaining.

• One minute before the TV switches itself into

OK

standby mode, the time remaining is displayed on
the TV screen automatically.

LANGUAGE

The “Language” option in the “Set Up” menu allows
you to select the language in which the menus are
displayed.

To do this:
After selecting the option, press the
proceed in the same way as in step 2 of the section
“Switching On the TV and Automatically Tuning” on
page 7.

OK

AUTO TUNING

The “Auto Tuning” option in the “Set Up” menu allows
you to automatically search for and store all available
TV channels.

To do this:
After selecting the option, press the
proceed in the same way as in TV steps 4 and 5 of
the section “Switching On the TV and Automatically
Tuning” on page 7 and 8.

OK

b button then

b button then

b button then

continued...

GB

Level 1 Level 2 Level 3 / Function

PROGRAMME SORTING

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

OK

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset

OK

OK

OK

OK

OK

Detail Set Up

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

The “Programme Sorting” option in the “Set Up”
menu allows you to change the order in which the
channels (TV Broadcasts) appear on the screen.

To do this:
After selecting the option, press the
proceed in the same way as in step 6 b) of the section
“Switching On the TV and Automatically Tuning” on
page 8.

OK

PROGRAMME LABELS

The “Programme Labels” option in the “Set Up” menu
allows you to name a channel using up to five
characters (letters or numbers).

To do this:
1 After selecting the option, press the

press the
number of the channel you wish to name.

b button. With the first element of the Label

2 Press

column highlighted, press v or
a letter or number (select “-“ for a blank), then
press the
the other four characters in the same way. Finally

OK

press the OK to store.

AV PRESET

The “AV Preset” option in the “Set Up” menu allows
you to designate a name to the external equipment
you have connected to the sockets of this TV.

To do this:
1 After selecting the option, press the

press the v or
you wish to name (AV1, AV2 and AV3 represent
the rear Scart sockets and AV4 is for the side
connectors). Then press the b button to confirm.

2 A predefined label automatically appears in the

label column:
a) If you want to use one of the 6 predefined

OK

labels (CABLE, GAME, CAM, DVD, VIDEO or
SAT), press the v or
desired label, then press OK button to store.

b) If you want to set a different label, select Edit

and press b button. Then with the first element
highlighted, press the v or
a letter, number or “-“ for a blank, then press b
button to confirm the character. Select the
other four characters in the same way. Finally
press the OK button to store.

b button then

v or V buttons to select the programme

b button, then

V buttons to select

b button to confirm the character. Select

V buttons to select the input source

b button, then

V buttons to select the

V buttons to select

Menu System

11

12

continued...

Menu System

- 10 -

Introducing and Using the Menu System

Level 1 Level 2 Level 3 / Function

MANUAL PROGRAMME PRESET

Picture Adjustment

Mode: Personal
Contrast
Brightness
Colour
Sharpness
Hue
Reset

Set Up

Language/Country
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset
Detail Set Up

OK

Set Up

Language
Auto Tuning
Programme Sorting
Progamme Labels
AV Preset
Manual Programme Preset

OK

Detail Set Up

The “Manual Programme Preset” option in the “Set
Up” menu allows you to:

a)

Preset channels or the VCR channel one by one
to the programme order of your choice.

To do this:
1 After selecting the ”Manual Programme Preset”

option, press the
option highlighted press the b button.
Press the v or
programme number you want to preset the
channel to (for VCR, select programme number
“0”). Then press the B button.

OK

2 After selecting the Channel option, press the OK

button. Next press the numbered buttons to
directly enter the channel number of the TV
Broadcast or the VCR channel. If you do not know
the channel number, press the v or
search for it. When you have tuned to the desired
channel, press the OK button twice to store.

Repeat all the above steps to tune and store more
channels.

b)

Label a channel using up to five characters.

To do this:

After highlighting the Programme option, press
the PROG +/- button to select the programme
number of the channel you wish to name. When
the programme you want to name appears on the
screen, select the Label option and press
button. Next press the v or
letter, number or “-“ for a blank. Press the b button
to confirm the character. Select the other four
characters in the same way. After selecting all the
characters, press the OK button twice to store.

c)

Manually fine tune the TV to obtain a better
picture reception if the picture is distorted.
Normally the automatic fine tuning (AFT) is in
operation, but you can alter it manually.

To do this:

Whilst watching the channel (TV Broadcast) you
wish to fine tune, select the AFT option and press
b button. Next press the v or
the fine tuning between -15 and +15. Finally
press the OK button twice to store.

d)

Skip any unwanted programme numbers when
they are selected with the PROG +/- buttons.

To do this:

After highlighting the Programme option, press
the PROG +/- button to select the programme
number you want to skip. When the programme
you want to skip appears on the screen, select
the Skip option and press the b button. Next
press the v or
press the OK button twice to confirm and store.
To cancel this function later on, select “No”
instead of “Yes” in the step above.

b button then with Programme

V buttons to select which

V buttons to

V buttons to select a

V buttons to adjust

V buttons to select Yes. Finally

continued...

Menu System

13

Teletext

Teletext is an information service transmitted by most TV stations. The index page of the teletext service

(usually page 100) gives you information on how to use the service. To operate teletext, use the remote
control buttons as indicated below.

Teletext errors may occur if you use a channel (TV Broadcast) with a weak signal.

To Switch on Teletext:

After selecting the TV channel which carries the teletext service you wish
to view, press the button.

To Select a Teletext page:

Input the 3 digits of the page number, using the numbered buttons.

• If you have made a mistake, retype the correct page number.

• If the counter on the screen continues searching, it is because the page is not
available.
In that case, input another page number.

To access the next or preceding page:

GB

b

Press PROG + () or PROG - ( ) buttons.

To superimpose teletext onto the TV:

Whilst you are viewing teletext, press the button. Press again to cancel teletext mode.

To freeze a teletext page:

Press the / button. Press again to cancel freeze.

To reveal concealed information (e.g: answer to a quiz):

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

To select a sub page:

A teletext page may consist of several sub pages. In this case the page number that appears on the upper left
corner changes colour from yellow to green, and one or more arrows will appear next to the page number.
Repeatedly press the B or b buttons on the remote control to watch the desired sub page.

To Switch Off Teletext:

Press button.

TELETEXT

TELETEXT

TELETEXT

TELETEXT

TELETEXT

TELETEXT

TELETEXT

TELETEXT

Index

Index

Index

Index

Index

Index

Index

Index

Programme

Programme

Programme

Programme

Programme

Programme

Programme

Programme
News

News

News

News

News

News

News

News
Sport

Sport

Sport

Sport

Sport

Sport

Sport

Sport
Weather

Weather

Weather

Weather

Weather

Weather

Weather

Weather

25

25

25

25

25

25

25

25

153

153

153

153

153

153

153

153
101

101

101

101

101

101

101

101

98

98

98

98

98

98

98

98

GB

Fastext

The Fastext service lets you access pages with one button push.
While you are in Teletext mode and providing Fastext is broadcast, a colour coded menu appears at the
bottom of the teletext page. Press one of the coloured buttons (red, green, yellow or blue) to access the
corresponding page.

Teletext

17

- 11 -

Connecting Additional Equipment

Using the following instructions you can connect a wide range of optional equipment to your TV set.
(Connecting cables are not supplied).

MANUFACTURED UNDER LICENCE

FROM DOLBY LABORATORIES

"DOLBY" AND THE DOUBLE - D

SYMBOL ARE TRADEMARKS OF

8mm/Hi8/

SO

N

Y

S VHS/Hi8/
DVC
camcorder

A

C

When you connect the headphones,
the TV speakers will automatically be
muted.

• To avoid picture distortion, do not connect external equipment to connectors A and B at the same

time.

• Do not connect a Decoder to the Scart connector F.

• Games that use a “gun” attachment to point at the screen do not work correctly due to the 100Hz
technology used in this television

Connecting a VCR:

To connect a VCR, please refer to the section “Connecting the aerial and VCR” of this instruction manual. We
recommend you connect your VCR using a Scart lead. If you do not have a Scart lead, tune in the VCR test
signal to the TV programme number “0” by using the “Manual Programme Preset” option. (for details of how
to manually programme these presets, see page 13, step a).
Refer to your VCR instruction manual to find out the output channel of your VCR.

Connecting a VCR that supports Smartlink:

Smartlink is a direct link between the TV set and the VCR. For more information on Smartlink, please

refer to the instruction manual of your VCR.

If you use a VCR that supports Smartlink, please connect the VCR by using a Scart lead to the Scart

socket 3/ 3 G.

S

DVC

camcorder

4

B

4

o4

DOLBY LABORATORIES

G

DF

Hi-Fi

“PlayStation”

Decoder

E

DVD

*

*

“PlayStation” is a product of Sony

Computer Entertainment, Inc.

*

“PlayStation” is a tradem ark of Sony

Computer Entertainment, Inc.

VCR

Decoder

Lifting the TV Set

214935871

2-149-358-71

18

Additional Information

continued...

KV-28CS70U/KV-32CS70U

Sony Corporation Printed in UK

- 12 -

Specifications

TV system I

Colour System PAL, SECAM,

Channel Coverage UHF: B21-B69

Picture Tube Flat display FD Trinitron WIDE 28” (Approx. 71 cm measured diagonally)

Rear Terminals 1/ 1 21-pin Scart connector (CENELEC standard) including audio/

Side terminals 4 S Video input - 4 pin DIN

Sound Output 2 x 20W (Music Power), 2 x 10W (RMS)

Power Consumption KV-28CS70 94W KV-32CS70 102W

Standby Power
Consumption

Dimensions (WxHxD) KV-28CS70 Approx. 844mm x 517mm x 548mm

Weight KV-28CS70 Approx 43.5Kg KV-32CS70 Approx. 60Kg

Accessories Supplied 1 Remote Control (RM-932), 2 batteries (IEC designated)

Other Features • 100Hz picture

Design and specifications are subject to change without notice.

NTSC 3.58, 4.43 (Video In only)

32” (Approx. 82 cm measured diagonally)

2/ 2 21-pin Scart connector (CENELEC standard) including audio/

3/ 3 21-pin Scart connector (CENELEC standard) including audio/

(SMARTLINK)

Audio outputs (Left/Right) - phono jacks

S

4 Video input - phono jack
4 Audio input - phono jacks

i Headphones jack

Woofer: 30W (Music Power), 15W (RMS)

KV-28CS70 0.4W KV-32CS70 0.4W

KV-32CS70 Approx. 933mm x 562mm x 572mm

• Teletext, Fastext, TOPtext (250 page TEXT memory)

• Sleep Timer

• Smartlink (direct link between your TV set and a compatible VCR. For more
information on Smartlink, please refer to the Instruction Manual of your VCR)

• ACI (Auto Channel Installation)

• Dolby Virtual

• BBE

• Autoformat

video input, RGB input, TV audio/video output

video input, RGB input, monitor audio/video output

S

video input, S-video input, selectable audio/video output and
Smartlink interface

GB

Troubleshooting

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

Problem Suggested Remedy

No picture (screen is dark), and no sound. • Check the aerial connection.

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

No picture or menu information from equipment
connected to the Scart socket.

Good picture, no sound. • Press the button on the remote control.

No colour on colour programmes. • Using the MENU system, select the “Picture

Distorted picture when changing programmes or
selecting Teletext.

Wrong characters appear when viewing teletext. • Using the menu system, display the “Language/

Picture slanted. • Using the menu system, select the “Picture Rotation”

Snowy picture when viewing a TV channel. • Using the menu system, select the “Manual

No unscrambled picture whilst viewing un
unscrambled channel with a decoder connected
through the scart connector 3/ 3.

Remote control does not function. • Replace the batteries.

The standby indicator on the TV flashes. • Contact your nearest Sony service centre.

S

• Plug the TV in and press the button on the front of
the TV.

• If the standby indicator is on press the button
or a numbered button on the remote control.

• Using the MENU system, select the “Picture
Adjustment“ display and select “RESET“ to return to
the factory settings.

• Check that the optional equipment is on, and press
the button of the remote control repeatedly until
the correct input symbol is displayed on screen.

• Check that “TV Speakers” is “On” in the “Detail Set
Up” menu.

• Check the Headphones are not connected.

Adjustment“ and select “RESET“ to return to the
factory settings.

• Turn off any equipment connected to the scart
connectors on the rear of the TV.

Country” menu and select the country in which you
are operating the TV set.

option in the “Detail Set Up” menu to correct the
picture slant.

Programme Preset” menu and adjust Fine Tuning
(AFT) to obtain better picture reception.

• Using the menu system, select the “Noise Reduction”
option in the “Detail Set Up” menu and select “Auto”
to reduce the noise in the picture.

• Using the menu system, display the “Set Up” menu.
Then select the “Detail Set Up” option and set “AV3
Output” to “TV”.

• Check that the decoder is not connected to the 2/

2 scart socket.

Additional Information

21

22

Troubleshooting

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

• NEVER open the casing yourself.

SECTION 2 DISASSEMBLY

2-1. Rear Cover Removal

=>

=>

=>

=>

=>

=>

=>

=>

Remove the rear cover fixing screws indicated and pull the
rear cover backwards away from the set.

Note: Before removing the rear cover completely,
disconnect the speaker connector which is located on
the inside of the set.

2-2. Service Position

=>

=>

=>

=>

=>

Position the chassis as indicated to access the solder side of
the PWB’s. To gain access to the underside of the boards
follow the instructions on page 16. [Removal and Replacement
of the main bracket bottom plates].

2-3. Chassis Removal and Refitting

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.

When refitting the chassis ensure that the main bracket is
located in the beznet guide slots before sliding the chassis
forwards. Refit the inter-connecting leads in their respective
purse locks.

- 13 -

2-4. G Board Removal 2-5. M Board Removal

Clips

To remove the G Board release the clips circled and remove
the screw from the middle of the board, then ease the
board gently away from the support bracket.
Removal of the D board follows the same procedure.

To remove the M Board gently release the two clips with a
screwdriver and remove the board from its socket vertically.

2-6. Service Connector for M Board

To A

From M
Board

Extender Board Assembly A-1642-293-A

Board

If the M Board needs to be removed for testing when the
chassis is placed in its service position, it would be necessary
to use an extender board and extension cable as indicated
above.
The Extender board and extension cable are available as a
service part by ordering the part number as indicated.

2-7. Wire Dressing

20mm

20mm

Ensure that wires do not touch heatsinks and high temperature
hotspots. All wires must be kept at a minimum distance of
20mm away from the EHT lead

- 14 -

2-8. Picture Tube Removal

WARNING:

BEFORE REMOVING

THE ANODE CAP

High voltage remains in the CRT even
after the power is disconnected. To
avoid electric shock, discharge CRT

before attempting to remove the anode

cap. Short between anode and CRT
coated earth ground strap.

Coated Earth
Ground Strap

10

8

7

6

5

2

4

9

1

3

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 tensioners.

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.]

Removal of the Anode-Cap

REMOVAL PROCEDURE.

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

How to handle the Anode-Cap

1. To prevent damaging the surface of the anode-cap do not use
sharp materials.

2. Do not apply too great a pressure on the rubber, as this may cause
damage to the anode connector.

3. A metal fitting called a shatter hook terminal is fitted inside the
rubber cap.

4. Do not turn the rubber foot over excessively, this may cause
damage if the shatter hook sticks out.

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

- 15 -

REMOVAL AND REPLACEMENT OF THE MAIN-BRACKET
BOTTOM PLATES.

For safety reasons, on no account should the plates be removed
and not refitted after servicing.

(1) REMOVING THE PLATES

In the event of servicing being required to the solder side of the printed wiring boards, 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 2 plates fitted to the main bracket. Only remove the necessary plate to gain

access to the printed wiring board.

- 16 -

(2) REFITTING THE 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.

Catch

Ta b

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 .................... 80% [or remote control normal]

Brightness ................... 50%

Preparation:

1. In order to reduce the influence of geomagnetism on the
set’s picture tube, face it in an easterly or westerly direction.

2. Switch on the set’s power and degauss with the degausser.

3-1. Beam Landing

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

Contrast and Brightness to normal.

2. Set the pattern generator raster signal to Red.

3. Move the deflection yoke forward and adjust with the

purity control so that the Red is at the centre and the Blue
and Green take up equally sized areas on each side of the
screen. [See Fig.3-1 - 3-3].

4. Move the deflection yoke backwards and adjust so that the

entire screen becomes Red. [See Fig.3-1]

5. Switch the raster signal to Blue, then to Green and verify

the condition.

6. When the position of the deflection yoke has been

determined, fasten the deflection yoke with the screws.

7. If the beam does not land correctly in all the corners, use a

magnet to correct it. [See Fig.3-4]

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.

Fig. 3-2.

Purity

Fig. 3-3.

GREEN

RED

BLUE

Disk magnets or
rotatable disk

Purity control corrects
this area

magnets correct
these areas (a-d)

Fig. 3-1.

Caution :

High voltages are present on the Deflection yoke terminals

- take care when handling the Deflection yoke whilst carrying
out adjustments.

- 17 -

Fig.3-4

ab

c

Deflection yoke positioning
corrects these areas

Disk Magnets

d

GBR

GBR

GBR

G

B

R

GBR

G

B

R

3-2. Convergence

B

G

R

a

b

R

G

B

b

a

Preparation:

4. If the V.STAT magnet is moved in the direction of the (a)
and (b) arrows, the Red, Green and Blue points move as

indicated below.

• Before starting this adjustment, adjust the focus, horizontal

size and vertical size.

• Minimize the Brightness setting.

• Input a dot pattern from the pattern generator.

Horizontal and Vertical Static Convergence

Center dot

R

G

B

H STAT

convergence

control

R

G

B

V.STAT Vertical Static Magnet

C Board

RV702 (H STAT)
H STAT Convergence
(on mount side)

a

b

a

a

b

a

b

B

G

R

R

R

b

B

G

R

a

B

G

b

B

G

Fig.3-5

1. [Moving horizontally], adjust the H.STAT control so that
the Red, Green and Blue points are on top of each other at
the centre of the screen.

Operation of the BMC (Hexapole) magnet.

2. [Moving vertically], adjust the V.STAT magnet so that the
Red, Green and Blue points are on top of each other at the
centre of the screen.

3. If the H.STAT variable resistor is unable to bring the Red,
Green and Blue points together at the centre of the screen,
adjust the horizontal convergence with the H.STAT variable
resistor and the V.STAT magnet in the manner indicated
below.
[In this case, the H.STAT variable resistor and the V.STAT
magnet influence each other].

• Tilt the V.STAT magnet and adjust the static convergence by

opening or closing the V.STAT magnet.

The movement of the magnets interact with each other and so
the respective dot position should be monitored while carrying
out this adjustment.
Use the H.STAT VR to adjust the Red, Green and Blue dots so
that they coincide at the centre of the screen
(by moving the dots in the horizontal direction).

- 18 -

+++

TLV VR 28"

Deflection Yoke

+
++

TLV VR 32"

Deflection Yoke

Geometry Adjustment.

a

b

d

Permalloy Assy

c

Install the permalloy assembly
for the area that needs correcting.

X-4387-214-1

Convergence adjustment with permalloy

APH circuit
harness

YCH Adjustment

Preparation:

Before starting this adjustment, adjust the horizontal and
vertical static convergence.

1. Remove the deflection yoke spacer.

2. Tilt the deflection yoke as indicated in the figure below and

optimise the geometry.
Tilting the DY Up and Down a small amount will balance
the upper and lower pin adjustment.

3. Re-install the deflection yoke spacers. Ensure 4 DY spacers are

reinserted

Tilt Direction

YCH VR 28"

+

Deflection Yoke

YCH VR 32"

+

+

+

+

+

Deflection Yoke

TLV Adjustment

Screen Corner Convergence

If you are unable to adjust the corner convergence properly,
this can be corrected with the use of permalloy magnets.

a

a-d: screen-corner
convergence defect

b

4. The H-Trap and T-B Pin may not achieve a good level due
to a small tilt allowance on the square DY. Keep the DY in
a straight position and adjust H-Trap pot (See diagram for
HTIL Adjustment) and Y-Mg for T-B Pin, as below.

HTIL Adjustment

Deflection Yoke

H-Trap YCH TLV

TLH Piece

28” 32”

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

Deflection Yoke

YCH

TLV

H-Trap

TLH Piece

one TLH

c

d

• APH Convergence parameter is electrically controlled. For this
reason a TLH piece may not be required.
(APH = Red vertical lines on the edge of the screen).

- 19 -

Layout of each control

V.STAT

Purity

BMC (Hexapole)

3-3. Focus 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
magenta-ring appears on the screen. In this case, adjust the
focus to optimize the screen uniformly.

3-4. Screen (G2), White Balance

[Adjustment in the service mode using the remote
commander]

G2 adjustment

1. Input a dot signal from the pattern generator.

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

3. Apply 165V 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 [SCREEN]
located on the flyback transformer to the point just before the
flyback return lines disappear.

White balance adjustment for TV mode

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

2. Set the TV set or operation in Service Mode.
[ See Page 21 ].

3. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.

4. The ‘Service’ menu will appear on the screen.[See Page 21]

5. Set the ‘Subcont’ to MAX.

6. Set the ‘R-Drive’ to 50.

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

8. Press the ‘OK’ button to write the data for each item.

9. Set the ‘Subcont’ to MIN.

10. Adjust the ‘Cutoff Br.’ with the left and right buttons on the
remote commander so that the white balance becomes optimum.

11. Press the ‘OK’ button to write the data.

Focus

Screen

- 20 -

4-1. Electrical Adjustments

SECTION 4 CIRCUIT ADJUSTMENTS

Service adjustments to this model can be performed using the
supplied remote Commander RM-947 (KV-28/32CS70B,
KV-28/32CS70E, KV-32CS70K) or RM-932 (KV-28/32CS70U).

How to enter into the 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.

i+

(ON SCREEN (DIGIT 5) (VOLUME +) (TV)
DISPLAY)

5

+

‘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.

YRTEMOEG

HTLBA

EDOMLBA

LBAP

EZISV

NOITISOPV

PMOCV

NILV

NOITCERROCS

EZISH

PMANIP

PMOCH

NIPRENROCPU

NIPM

NIPRENROCOL

MUIZEPART

NOITISOPH

WOBCFA

ELGNACFA

KLBTFEL

KLBTHGIR

TCEPSAV
1MITBKA
2MITBKA

RKI

GNH

GNV

)3,0(
)3,0(

)3,0(

)3,0(

)3,0(

)3,0(
)1,0(

0

0
)51,0(
)36,0(
)36,0(

)51,0(
)51,0(
)36,0(
)36,0(

)36,0(

)36,0(
)51,0(
)36,0(
)51,0(
)51,0(
)36,0(
)36,0(
)36,0(

51

42

72
1
8
8

33

51

0

43

2

83

5

83
6
8

43

91

62

2

0

1

0
0

yrtemoeG

amaronaP

ecivreS

etarnacS

CAD

PiP

dnuoS

tsujdaFI

uneMrorrE

)30ciD(52.4vediWB6EA

hF0h01atadyrotcaF

NO/3B1-2049/G1143PSM:BOFI/nacS/PSM

4. Move to the corresponding adjustment item using the
up or down arrow buttons on the Remote Commander.

5. Press the right arrow button to enter into the required menu
item.

6. Press the ‘Menu’ button on the Remote Commander to quit
the Service Mode when all adjustments have been completed.

Note :

• After carrying out the service adjustments, to prevent the
customer accessing the ‘Service Menu’ switch the TV set

OFF and then ON.

AMARONAP

HHTDIWROH

LHTDIWROH
HSOPROH
LSOPROH

HPILPPAN
LPILPPAN

HCSOPCSH
LCSOPCSH

LEDNALB

NELNALB

LOPNALB
H1GESH
L1GESH
H2GESH
L2GESH
H3GESH
L3GESH
H4GESH
L4GESH

HOCNIH

LOCNIH
H1CNIH
L1CNIH
H2CNIH
L2CNIH
H3CNIH
L3CNIH
H4CNIH
L4CNIH

)7,0(

)7,0(

)7,0(

)1,0(
)7,0(

)7,0(

)7,0(

)7,0(

)1,0(

)1,0(

)1,0(

)1,0(

)1,0(

1

)552,0(

)552,0(

)721,0(

)51,0(

)552,0(
)552,0(
)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

)552,0(

071

0

51

1

26

8

151

31

702
0
0

69

0

291

0

422
1

46

0

04

0

02
0
0
1

632

1

612

- 21 -

UNEMRORRE

etumotuA

gnitaGL

POTCGA)51+,61-(

ECIVRES

LOCBUS

EUHBUS

EVIRD-R
EVIRD-G

EVIRD-B

TXTrB

DSOrB

TSUJDAFI

niaGoiduA

PRAHSBUS

THGIRBBUS

TNOCBUS

FFOTUCR

FFOTUCG

FFOTUCB

1

0
0

6-

)36,0(
)36,0(
)36,0(
)36,0(
)51,0(
)36,0(
)36,0(
)36,0(
)36,0(
)36,0(
)36,0(
)51,0(
)51,0(

jdA
13
03

31
21

05

jdA

jdA
82
42
64

7

01

1. Input a Monoscope pattern.

2. Set the TV set or operation in Service Mode.

3. Select ‘Service’ from the on screen menu display and press

20E
30E
40E
50E
60E
70E
80E
90E
01E
11E
21E
31E
41E
51E
61E

EMITGNIKROW

SRUOH

SETUNIM

Sub Brightness Adjustment

[ See Page 21 ].

‘Right Arrow’.

PCO

PVO

CNYSV

RKI

CII

MVN

TORPH
RENUT

PDNUOS

­ETARNACS

CAD

DNEKCAB

-

PIP

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

3

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

0

)552,0(

1

)552,0(

1

)552,0(

1

)552,0(

0

)552,0(

0

41

3

4. The ‘Service’ menu will appear on the screen.

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

CAD

GIFNOC

TNOCNIPM

NILH

PARTH

LIOC.TOR

HPSUCOHP

)552,0(
)552,0(
)552,0(
)552,0(
)552,0(

00000000

69
38

721
031

09

1. Input a video signal that contains a small 100% white area on a

black background.

2. Connect an digital voltmeter to Pin 10 of J7375 [C Board].

3. Set the TV set or operation in Service Mode.
[ See Page 21 ].

4. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.

5. The ‘Service’ menu will appear on the screen.

6. Adjust the Sub-Contrast toobtain a voltage of 105 +/- 5V.

Sub Colour Adjustment

Sub Contrast Adjustment

DNUOS

1. Receive a PAL colour bar signal.

N-M
D-M
S-M

M-S

M-D
M-N

EBB
1B
2B
3B
4B
5B

LWS
FWS

DACMACIN

rorrEMACIN

oeretS

)115,0(

)1-,821-(

)721+,0+(

)721+,0+(
)1-,821-(
)3201,0(
)86+,0+(

)69+,69-(
)69+,69-(
)69+,69-(
)69+,69-(
)69+,69-(
)0+,821-(

)04+,5+(

)7402,0(

)721+,821-(

002

02-

02+
01+

01-

694

82+
0+
0+
0+
0+
0+
0+

03+

00000

0
0+

2. Connect an oscilloscope to Pin 6 of CN7001 [A Board].

3. Set the TV set or operation in Service Mode.
[ See Page 21 ].

4. Select ‘Service’ from the on screen menu display and press
‘Right Arrow’.

5. The ‘Service’ menu will appear on the screen.

6. Adjust the ‘Sub Colour’ sothat the Cyan, Magenta and Blue
colour bars are of equal levels as indicated below.

Same Level

sutatS0110000000

B-Out Waveform

- 22 -

72

RKEDAnoitanitseD

82

RKEDAnoitanitseD

13

elbasiD/elbanEffotuhSotuA

63

tsetNO/FFO)MV(noitaludoMyticoleV

14

MVNesilaitini-eR

34

dnuosAlauDtceleS

44

dnuosBlauDtceleS

54

dnuosonoMtceleS

64

dnuosoeretStceleS

84

nigrivnonsaMVNteS

94

nigrivsaMVNteS

35

elbasiD/elbanEnoitaludomrevOMF

55

)SPLA/YNOS(noitcelesrenuT

95

stracS2roPIP+stracS3ledoMtceleS

86

)melborpN(erusaemretnuoc62XelbasiD/elbanE

37

)47.6/5.6(metsys2K/DnotiewZelbanE

47

)47.5/5.6(metsys3K/DnotiewZelbanE

87

thgirllufecnalaB

97

tfelllufecnalaB

78

tsetsyeklacoL

99

unememiTgnikroWdnarorrEyalpsiD

00

ffoedom'TT'

10

mumixamerutciP

20

muminimerutciP

30

%53otemuloVenohpdaeh/rekaepsteS

40

%05otemuloVenohpdaeh/rekaepsteS

50

%56otemuloVenohpdaeh/rekaepsteS

60

%08otemuloVenohpdaeh/rekaepsteS

70

edomgniegA

80

noitidnoCgnippihS

11

tnemtsujdaerutcipbuS

21

tnemtsujdaruolocbuS

31

tnemtsujdassenthgirBbuS

41

tnemtsujdanoitisoPHtxeT

51

tseTlioCnoitatoR

61

%05levelerutciP

91

elbasiD/elbanEedoMyrotcaF

12

RKEDAnoitanitseD

22

LBnoitanitseD

32

RKEDAnoitanitseD

42

UnoitanitseD

52

RKEDAnoitanitseD

62

LBnoitanitseD

Deflection System Adjustment

4-2. TEST MODE 2:

1. Set the TV set or operation in Service Mode.
[ See Page 21 ].

2. Select ‘Geometry’ from the on screen menu display and press
‘Right Arrow’.

3. The ‘Geometry’ menu will appear on the screen.[See Page 21]

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

V SIZE

V LIN

AFC BOW

V POSITION

H POSITION

Test Mode 2 is available by setting the TV for operation in Service
Mode [ As shown on Page 21 ] , OSD ‘TT’ appears. The functions
described below are available by selecting the two numbers. To
release the ‘Test mode 2’, press 00, 10, 20 ... twice or switch the TV
set into Stand-by mode. In ‘TT Menu’ mode, it is possible to remove
the Menu from the screen by pressing the Speaker Off button once.
Pressing the Speaker OFF button a second time will cause the Menu
to reappear. The function is kept even when the menu is not displayed
on screen !!.

H SIZE

PIN AMP

TRAPEZIUM

UP CORNER PIN

AFC ANGLE

LO CORNER PIN

- 23 -