TOSHIBA 50WH18P User Manual

FILE NO. 030-200115

SERVICE MANUAL

COLOUR TELEVISION

C01P Chassis

42WH18P
50WH18P

PUBLISHED IN JAPAN Sep., 2001 So

TABLE OF CONTENTS

CHAPITRE 1 REGLAGES GENERAUX..............................................................................................................................3

CRT REMPLACEMENT ASSEMBLAGE ET MONTAGE.......................................................................................... 4

TUBE-IMAGE COMPOSANTS SERVICE................................................................................................................. 6

REGLAGE POSITION ............................................................................................................................................. 9

MODE SERVICE ..................................................................................................................................................... 10

MODE CONCEPTION ............................................................................................................................................. 13

GENERAL ADJUSTMENTS

REGLAGE ELECTRIQUE......................................................................................................................................... 14

REGLAGE CONVERGENCE ................................................................................................................................... 21

ALIGNEMENT ECRAN ET MIRROIR....................................................................................................................... 30

CONTR‘LES DU CIRCUIT...................................................................................................................................... 31

CHAPITRE 2 INFORMATIONS SPECIFIQUES

REGLAGE ET AJUSTEMENT DATA........................................................................................................................32

EMPLACEMENT DE CONTROLS............................................................................................................................33

SCHEM CIRCUIT .................................................................................................................................................... 35

SPECIFIC INFORMATIONS

DEMONTAGE MECANIQUE.................................................................................................................................... 36

CHASSIS ET COFFRE LISTE DES PIECES DE RECHANGE................................................................................41

CARTES PC DISPOSITION VUE DE DESSUS....................................................................................................... 68

CARTES PC VUE DU BAS ..................................................................................................................................... 69

BORNE VUE DE TRANSISTORS ............................................................................................................................ 82

SPECIFICATIONS .................................................................................................................................................... 87

APPENDICE:

schéma électrique, représentation graphique d’un circuit électrique

– 2 –

CHAPTER 1 RÉGLAGES GÉNÉRAUX

CONSIGNES DE SECURITEÉ

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU-

TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can produce potentially hazard­ous X-RAY RADIATION. To avoid such hazards, the high
voltage must not be above the specified limit. The nominal
value of the high voltage of this receiver is (A) kV at zero
beam current (minimum brightness) under a (C) V AC power
source. The high voltage must not, under any circum­stances, exceed (B) kV.

Refer to table-1 for high voltage (A), (B) & AC voltage (C).
(See SETTING & ADJUSTING DATA on page 32)

Each time a receiver requires servicing, the high voltage
should be checked following the HIGH VOLTAGE CHECK
procedure in this manual. It is recommended that the read­ing of the high voltage be recorded as a part of the service
record. It is important to use an accurate and reliable high
voltage meter.

SAFETY PRECAUTION

WARNING : Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver. The following
are the necessary precautions to be observed before servicing this chassis.

1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is
performed on the receiver.

2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube
is highly evacuated and if broken, glass fragments will be violently expelled. Use shatter proof goggles and keep picture tube
away from the unprotected body while handling.

3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as; non­metallic control knobs, insulating covers, shields, isolation resistor-capacitor network etc.

2. The only source of X-RAY RADIATION in this TV receiver
is the picture tube. For continued X-RAY RADIATION pro­tection, the replacement tube must be exactly the same
type tube as specified in the parts list.

3. Some part in this receiver have special safety-related char­acteristics for X-RAY RADIATION protection. For contin­ued safety, parts replacement should be undertaken only
after referring to the PRODUCT SAFETY NOTICE below.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are
often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using
replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety char­acteristics are identified in this manual and its supplements; electrical components having such features are identified by
the international hazard symbols on the schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, X-ray
radiation or other hazards.

– 3 –

CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR

SEALING OF CRT COOLANT.

GENERAL ADJUSTMENTS

CRT ASSEMBLY REPLACEMENT AND MOUNTING

Attention Serviceman

The Hex Head
Bolts with
Springs. (see
sketch) used on
CRT assembly,
are “NOT”

Adjustment Screws
DO NOT LOOSEN-FLUID
LEAKAGE WILL OCCUR.

SPECIFIC INFORMATIONS

Lens Assembly

CRT Assembly

CRT Anode Cap Assembly

S.V.M. Coil

4 Screws

4 Screws

CRT DRIVE Board

CRT Mounting

Deflection Yoke and Conver Yoke

Lens and Neck Components View

– 4 –

TO REMOVE CRT (Same procedure for R, G, B)

1. Remove CRT DRIVE Board, S. V. M. COIL and
DEF. YOKE from CRT.

2. Remove Lens Assembly.

3. Detach CRT Anode Cap from CRT.

4. Remove CRT Assembly from CRT Mounting.

CRT REPLACEMENT (Same procedure for R, G, B)
Reverse the removal procedures except the followings.

1. Anode Cable should be replaced with new one.
See "SERVICING PRECAUTIONS" shown below.

2. Install silicon (T461B) to the CRT, replace the Anode
cable and put enough silicon again on around the An­ode Cap as illustrated.

CAUTION: Align the Anode cable as illustrated on page

4.

ADJUSTING PROCEDURE IN REPLACING CRT

1. R.G.B. CUTOFF (SCREEN VR) ADJUSTMENT (page 6.)

2. R.G.B. FOCUS ADJUSTMENT (page 6.)

3. PICTURE TILT ADJUSTMENT (page 7.)

4. USER CONVERGENCE CENTER CHECK
(Refer to owner's manual.)

5. CENTERING ADJUSTMENT (page 7.)

6. CONVERGENCE ADJUSTMENT (page 21.)

7. WHITE BALANCE ADJUSTMENT (page 14.)

Adjustments are complete.

Silicon
(On shaded area)
TSE3843W #23960136

Anode Cap

2 ~ 5 mm

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

SERVICING PRECAUTIONS

■ Do not use a magnetized screw driver for screws

of Deflection Yoke and Velocity Modulation Coil to
avoid magnetization of electron gun.
Magnetization of electron gun will degrade basic
function and result in unbalance of right and left
shift of user static convergence, and result in no
variable quantity.

Screw
for D.Y

15 ~ 25 mm

■ When replacing the anode cap assembly (CRT) or

anode lead assembly (F.B.T.), remove the anode
lead holder from old one and attach the holder
again to new anode lead.

■ Check the point of anode lead in a straight

line, if it is winding, please revise it.

Anode lead holder

Screw for SVM coil

– 5 –

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE-

CAUTION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL.

PICTURE TUBE COMPONENTS ADJUSTMENT

ADJUSTING PROCEDURE IN REPLACING CRT

Cutoff

Lens focus

Electrical focus

GENERAL ADJUSTMENTS

Yoke horizontal

DESCRIPTION OF NECK COMPONENTS

SPECIFIC INFORMATIONS

S.V.M. COIL

1 Deflection yoke and convergence yoke.

The position on the neck is required most front (CRT fun­nel side) and the screw is fastened after rotating yoke
adjusting picture tilt.

2 Centering magnet

After adjusting picture tilt, picture position is finally fixed
by this magnet.
In order to get maximum margin of user convergence con­trol for center of screen, this magnet have to be used for
center convergence adjustment.

2

User convergence center check

Centering (PAL)

Convergence adjustment
(PAL/NTSC)

White balance

Sub bright adjustment

End

1

RGB FOCUS ADJUSTMENT

1. Call-up the adjustment mode (see page 10)

2. Press a button on the remote controller in order to display
the internally-generated cross-hatch (See TEST SIGNAL
SELECTION on page 11.)

3. Expose only RED by covering the GREEN and BLUE
lenses with caps.

4. Loosen the RED lens fixing screws (refer to Fig. a), and
adjust the RED lens focus to obtain the sharpest point
while observing the middle and peripheral sections of the
screen.

Fig. a

5. Use the focus VR of “R” of the focus pack in order to adjust
the electric focus in the middle and peripheral sections of
the screen to its sharpest level.

6. Check the RED focus of the whole screen and if necessary
repeat steps 4 and 5.

7. Fix the RED lens by tightening its fixing screws.

8. Expose only GREEN by covering the RED and BLUE
lenses with caps.

9. Display the internally-generated cross-hatch signal.

10. Adjust the GREEN lens focus on the left border of the
screen to its sharpest level, then check the focus on the
right border, and if it is at its sharpest level, fix it in that
position by tightening the lens screws.

PREPARATION

Operate the receiver for at least 5 minutes.

R, G, B CUTOFF (SCREEN VR) ADJUSTMENT

1. Adjust before replace the screen assembly.

2. Set user control to reset position.
CONTRAST → Max

(

BRIGHTNESS, COLOR, TINT → Center.

3. Call up the adjustment mode display, then select the

item RCUT.

4. Adjust the data of items RCUT, GCUT, and BCUT to

"40H".

5. Press the

6. Gradually rotate R, G and B screen volume of FOCUS

PAC clockwise or counterclockwise until the raster
appears slightly on the CRT through the each lens, and
leave them.
(Lookin to the lens in order to check the raster.)

7. Press the

Picture)

button on Remote. (Y-MUTE : ON)

button on Remote. (Return to Normal

(1) If the horizontal line toward the right border is red-

flared, turn the lens screw slightly right in order to
balance it with the left border. (After adjustment, the
left border tends to be slightly green-flared, and the
right border tends to be slightly red-flared.)

(2) If the horizontal line toward the right border is green-

)

Note: The aim of the above-described adjustment procedure

– 6 –

flared, turn the lens screw slightly left in order to
balance it with the left border. (After adjustment, the
left border tends to be slightly red-flared, and the
right border tends to be slightly green-flared.)

for the Green lens focus is to obtain the best lens focus
after 2 - 3 hours of warming up taking into account the
focus drift; it applies if the warming up time before the
adjustment is less than 30 minutes. (The horizontal line
in the screen middle section tends to be slightly red­flared.)

In case of warming up of more than 2 hours under a condition
that the large anode current is running through the projection
tube so that for example the all-white pattern appears, adjust
to obtain the sharpest focus while observing the whole screen
like in the RED case.

11. Press a button on the remote controller in order to display
the internally-generated black cross-hatch. (See TEST
SIGNAL SELECTION on page 11.)

12. Use the focus VR of “G” of the focus pack in order to ad-
just the electric focus in the middle section of the screen
to its sharpest level.

Note: Keep in mind that only the BLUE electric focus is ad-

justed with the black cross-hatch.

20. Check the BLUE focus of the whole screen and if neces­sary repeat steps 17 and 19.

21. Fix the BLUE lens by tightening its fixing screws.

TILT ADJUSTMENT

Rotate R, G, B deflection yoke so that picture becomes hori­zon, then fasten screw.

CENTERING ADJUSTMENT

1. Stretch a thread between two center of screen edge (top
and bottom, left and right).

GENERAL ADJUSTMENTS

Note: Normally the most clearly visible point of the scanning

line is the sharpest point of the Green focus, however as
the characteristics vary depending on the projection tube,
the sharpest focus points of the vertical and horizontal
lines may not match each other, thus when you turn the
focus VR, if the picture tends to be tremendously unstable
(rolls horizontally or vertically), adjust the balance of the
vertical and horizontal lines to its best position.

13. Check the GREEN focus of the whole screen and if
necessary repeat steps 10 and 11.

14. Fix the GREEN lens by tightening up its fixing screws.

15. Expose only BLUE by covering the RED and GREEN
lenses with caps.

16. Press a button on the remote controller in order to display
the internally-generated cross-hatch (See TEST SIGNAL
SELECTION on page 11.)

17. Loosen the BLUE lens fixing screws (refer to Fig. a), and
adjust the BLUE lens focus while observing the middle
and peripheral screen sections.

18. Press a button on the remote controller in order to display
the internally-generated black cross-hatch (See TEST SIG­NAL SELECTION on page 11.)

19. Use the focus VR of “B” of the focus pack in order to adjust
the focus in the middle section of the screen to its sharpest
level.
(The point of the Blue focus becomes sharpest when the
brightness level of BLUE is lowest, the cross-hatch is
clearly visible.)

2. Select the adjustment mode. (See page 10.)

3. Press a button on the Remote Control to display the black
cross-hatch.

4. Adjust G centering magnet so that the cross-hatch pat­tern center comes to screen center.

5. Perform HEIGHT adjustment . (See page 14.)

6. Perform WIDTH adjustment. (See page 14.)

7. Check whole quality of green line.

8. Adjust R, B centering magnet so that the cross-hatch pat­tern center comes to screen center.

SPECIFIC INFORMATIONS

– 7 –

LOCATION OF SCREEN AND FOCUS VR'S

To remove the Speaker grille and Front panel.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

REPLACEMENT OF HIGH VOLTAGE CABLE

ANODE LEAD

RUBBER BOOT

LEAD HOLDER

Speaker grille

B

1. When replacing Anode Lead or Anode Cap with new

one, remove Lead Holder from old lead as shown in
figure below, and put it on new lead. Do not throw away
Lead Holder.

NOTE : THE LEAD HOLDER IS ATTACHED TO

TPA5007 (Z450), BUT IS NOT ATTACHED TO
ANODE LEAD AND ANODE CAP. RUBBER
BOOT IS ATTACHED TO ANODE LEAD AND
ANODE CAP.

RG

FOCUS VR's

SCREEN VR's

Fig. a

Z450 TPA5007

– 8 –

2. Detaching Lead Holder

LOCK

LEAD HOLDER

RUBBER BOOT

Fig. b

OLD
ANODE LEAD

or

ANODE CAP

Cut here rubber boot
and lead together to
detach Lead Holder.

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE-

CAUTION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL.

SERVICE POSITION

In order to assure the performance, processed wires shall be replaced after the repair work.
Work procedures are as follows:

1. Remove the back board.

2. Remove lead wires.

3. Draw out the chassis.

4. Rest the chassis against the back cabinet, chassis as shown bellow.

After repair work finished, replace it in the opposite procedure.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

– 9 –

1. ENTERING TO SERVICE MODE

1) Press o button once on
Remote Control.

SERVICE MODE

2) Press o button again to
keep pressing.

3) While pressing the o button,
press MENU button on TV set.

or Sound Mute

GENERAL ADJUSTMENTS

2. DISPLAYING THE ADJUSTMENT MENU

1) Press MENU button on TV.

Service mode

3. KEY FUNCTION IN THE SERVICE MODE

The following key entry during display of adjustment menu provides special functions.

SPECIFIC INFORMATIONS

Screen adjustment mode ON/OFF: -/-- ( ) button (on Remote)
Test signal selection : a button (on Remote)
Selection of the adjustment items : Channel s/t (on TV or Remote)
Change of the data value : Volume ; +/– (on TV or Remote)
Adjustment menu mode ON/OFF : MENU button (on TV)
Initialization of the memory (QA02) : CALL + Channel button on TV (s)
Reset the count of operating protect

circuit to “00”: CALL + Channel button on TV (t)

“RCUT” selection : 1 button
“GCUT” selection : 2 button
“BCUT” selection : 3 button
“SCNT” selection : 4 button
“COLP” selection : 5 button
“TNTC” selection : 6 button

Convergence adj : YELLOW button
Self diagnostic display ON/OFF : 9 button

Item

Data

(Service mode display)

Adjustment mode

S

Press

Press

Item

Data

S

Color thickness correction
note: Displayed differently as shown below, de-

pending on the setting of the receiving color
system.
COLP (PAL)
COLC (NTSC)
COLS (SECAM)

CAUTION : Never try to perform initialization unless you have changed the memory IC.

– 10 –

4. SELECTING THE ADJUSTING ITEMS

1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2.
(t button for reverse order)

Refer to table-2 for preset data of adjustment mode.
(See SETTING & ADJUSTING DATA on page 32)

5. ADJUSTING THE DATA

1) Pressing of VOLUME ; +/– button will change the value of data in the range from 00H to FFH. The variable

range depends on the adjusting item.

6. EXIT FROM SERVICE MODE

1) Pressing POWER button to turn off the TV once.

■ INITIALIZATION OF MEMORY DATA OF QA02

After replacing QA02, the following initialization is required.

1. Enter the service mode, then select any register item.

2. Press and hold the CALL button on the Remote, then press the CHANNEL s button on the TV. The initialization of QA02 has
been complated.

3. Check the picture carefully. If necessary, adjust any adjustment item above.
Perform “Auto search Memory” on the owner’s manual.

CAUTION: Never attempt to initialize the data unless QA02 has been replaced.

7. TEST SIGNAL SELECTION

1) Every pressing of a button on the Remote Control changes the built-in test patterns on screen as described below
in SERVICE MODE.

Signal off

NTSC signals (5 patterns)

PAL signals (5 patterns)

Signals Picture

• Red raster

• Green raster

• Blue raster

• All White

• Black cross-hatch

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

The signals marked with are not usable to display in the Test signal for some model.

*

– 11 –

8. SELF DIAGNOSTIC FUNCTION

1) Press “9” button on Remote Control during display of adjustment menu in the service mode.
The diagnosis will begin to check if interface among IC’s are executed properly.

2) During diagnosis, the following displays are shown.

Indicated color of mode now selected : Green and Red

<SELF CHECK>

2300****



TIME : 000000



POWER : 00



BUS CONT : OK



BLOCK : UV V1 V2 V3 V4



Indicated color of other modes : Black

Green : Normal
Red : The microcomputer operates to provide judgement

of no video signal. The red color is still indicated
though the signal is input, failure may exist in input
signal line including QV01.

GENERAL ADJUSTMENTS

 Part number of microcomputer (QA01)
 Total hour of turn the TV on. (Unit: H)
 Operation number of protecting circuit ----“00” is nor-

mal.
When indication is other than “00”, overcurrent apts to
flow, and circuit parts may possibly be damaged.

 BUS CONT ----“OK” is normal.

When indication shows “Q uuu NG”, the device with

SPECIFIC INFORMATIONS

the number may possibly be damaged.

 BLOCK

UV : TV reception mode
V1 : VIDEO 1 input mode (a1)
V2 : VIDEO 2 input mode (a2)
V3 : VIDEO 3 input mode
V4 : VIDEO 4 input mode

The items marked with are not usable to display in the SELF DIAGNOSTIC FUCTION for some model.

*

NOTE: (1) In case that "on timer" indicator is blinking with

interval of 0.5 seconds; it means protecting
circuit (Current limiter) is operating, and cir­cuit components may possibly be damaged.
Check related components.

(2) In case that "on timer" indicator is blinking with

interval of 1 second; Protecting circuit does
not operate, but a part of Bus line does not
operate normally. Check Bus line.

– 12 –

1. ENTERING TO DESIGN MODE

1) Select the Service mode.

DESIGN MODE

2) While pressing CALL button on Remote
and press MENU button on TV.

3) Press MENU button on TV.

S D

(Design mode) (Adjustment mode)

When QA02 is initialized, items “OPT0”, “OPT1” and "OPT2" of DESIGN MODE are set to the data of the representative model
of this chassis family.
Therefore, because ON-SCREEN specification remains in the state of the representative of model. This model is required to
reset the data of items “OPT0”, “OPT1” and "OPT2".

2. SELECTING THE ADJUSTING ITEMS

Every pressing of CHANNEL t button in the design mode changes the adjustment items in the order of table-3.
(s button for reverse order)

Refer to table-3 for data of design mode.
(See SETTING & ADJUSTING DATA on page 32)

3. ADJUSTING THE DATA

Pressing of VOLUME s or t button will change the value of data.

Press

Press

ITEM

DATA

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

– 13 –

ELECTRICAL ADJUSTMENT

ITEM ADJUSTMENT PROCEDURE

WIDTH

(WID)

(Picture size wide)

HEIGHT

(HIT)

GENERAL ADJUSTMENTS

(Picture size wide)

WHITE BALANCE

(RCUT)

(GCUT)

(BCUT)

(RDRV)

(BDRV)

SPECIFIC INFORMATIONS

1. Call up the adjustment mode display, then select the item WID.

2. Press the VOLUME t button to get the picture so the left
or right edges of raster begins to lack.

3. Press the VOLUME s button to advance the data by 11
steps.

Note : Check the horizontal picture position is correct.

1. Call up the adjustment mode display, then select the item HIT.

2. Press the VOLUME t button to get the picture so the top or bottom of
raster begins to lack.

3. Press the VOLUME s button to advance the data by 9 steps.

Note : Check the vertical picture position is correct.

Black and White pattern

High light area
Adjust "RDRV" or "BDRV" to be white.

Low light area
Fine adjust "RCUT", "GCUT" or "BCUT" to be black.

1. Set user control to reset position.

CONTRAST → Max

(

BRIGHTNESS, COLOR, TINT → Center.

2. Call up the adjustment mode display, then select the item RCUT.

3. Adjust the data of items RCUT, GCUT, and BCUT to "40H".

4. Press the -/-- ( ) button on Remote. (Y-MUTE : ON)

5. Gradually rotate R, G and B screen volume of FOCUS PAC clockwise or coun­terclockwise until the raster appears slightly on the CRT through the each lens,
and leave them.
(Lookin to the lens in order to check the raster.)

6. Press the -/-- (

7. Press the a button on Remote, and select the Black and White pattern.

8. Adjust the data of items RCUT, GCUT and BCUT for proper white-balanced
picture in low light area.

9. Adjust the data of items RDRV and BDRV for proper white-balanced picture in
high light area.

10. Check the white balance in both low and high light areas.
If necessary, perform again steps from 8 to 9.

) button on Remote. (Return to Normal Picture)

)

– 14 –

C01P: Series (Reference factory adjustment)

TP-V

TP-G

Adjusting

standards

For details,

refer to [focus

adjusting

method]

introduced in

the next page.

8750k-0.002uv

8750k-0.002uv

).

2

)

2

Digital

voltmeter

GENERAL ADJUSTMENTS

(PAL-I signal) SIGNAL unit white peak

Audio system: I

Wide mode

2) Adjust after adjusting W/B, SCNT

(Y mute, DRV.CUT=40H)

adjust the screen VR to the point that starts lighting

3) Directly observe the surface of Cathode Ray Tube and

4) Make above-mentioned adjustments for each tube of G, R,

and B.

Crosshatch 2) Use the jig and shade the CRT except the axes under

and B.

signal adjustment

SPECIFIC INFORMATIONS

Items Names Settings Input signals Measuring points Adjusting methods

SCNT Sub-contrast Picture mode 1 Sub-bright signal TP46B 1) Adjust amplitude from the pedestal level up to the 2.3 ± 0.1Vpp

BRTC Sub-bright Picture mode 1 Sub-bright Screen 1) Adjust the number of black collapsed lines of sub-bright 4 ± 1.5 lines

center Wide mode signal adjustment signals

center Wide mode signal SIGNAL unit 2) Adjust the P-P value of the upper half

PAL (PAL)

center Wide mode color bar SIGNAL unit (Apply picture mute at the time of adjustment)

SECAM 2) Adjust the P-P value of the upper half

COLP Sub-color Picture mode 1 Sub-bright TP46B 1) Adjust the amplitude of the color bar 1.25 ± 0.1Vpp

COLS Sub-color Picture mode 1 SECAM TP46B 1) Adjust the amplitude of the color bar 1.75 ± 0.1Vop

R-Y Black level color bar SIGNAL unit be aligned with the level of H.BLK

SBY SECAM SECAM TP01 1) Adjust so that the level of black and white signal part can 0 ± 10mV

SRY SECAM SECAM TP02 1) Adjust so that the level of black and white signal part can 0 ± 10mV

R-Y Black level color bar SIGNAL unit be aligned with the level of H.BLK

Screen Screen Factory screen CRT tubular 1) Darken the environment as much as possible Point that

adjustment adjusting mode screen 2) Set to factory-set screen adjusting MODE starts lighting

– 15 –

Focus Focus Dynamic mode Retma signal Screen 1) Adjust to the best position by repeating electrical focus and

adjustment CINEMA mode (PAL-I) adjustment optical focus adjustments

. 3) Make above-mentioned adjustments for each tube of G, R,

RDRV Bright part Screen 1) Adjust the color temperature of the bright part (103cd/m

BDRV W/B adjustment

RCUT Dark part W/B Screen 1) Adjust the color temperature of the dark part (17cd/m

Midpoint Dynamic mode Phillips Pattern Between TP-V 1) Connect a digital voltmeter between TP-V 10 ± 10mV

voltage Wide mode and TP-G and TP-G and adjust it to 10 ± 10mV by VCEN data

Voltage

measure-

BCUT adjustment

ment at

vertical

midpoint

Adjustment items Adjusting methods

Focus adjustment

GENERAL ADJUSTMENTS

The items of G lens adjust-

SPECIFIC INFORMATIONS

ment mentioned in 4) are
applicable to 50PH, 61PH,
50W, and 57W, and regarding
the G lens adjustment for
43PH and 42W, apply the
methods mentioned in the
next page.

(Conditions)

- User adjustment: Dynamic mode, Cinema mode

- To be performed after centering magnet adjustment.

- Signal : Lens: R .... Retma Pattern (PAL)

G.... Crosshatch (PAL)

B .... Crosshatch (PAL)

Electrical focus :

R .... Retma Pattern (PAL)

G.... Crosshatch (PAL)

B .... RetmaPattern (PAL)

(Adjustment)

1. Common item

1) Make coarse adjustments in advance on the lens focus and electrical
focus of each R, G, and B tube.

2. G adjustment

1) Set to the G monochrome by lens cap.

2) Receive the image of crosshatch.

3) Adjust the G electric focus.
Adjust the G electrical focus by the focus volume of focus block (Z410)
so that the screen center will come to optimum focus. (Although the G
electrical focus is to be adjusted to allow the scanning lines in the center
of the screen to be seen most clealy, if G alignment and astigmatism are
inferior with the appearance of vertical and horizontal flares in the center
of and around the screen and if the lines become thicker, adjust to the
best point observing the entire screen.)

4) Adjust the G lens focus. (Details on43PH and 42W are mentioned in the
next page)
Keep an eye on the center of the crosshatch pattern and adjust so that
the screen center will become clear.
As a rough guide to decrease unevenness, adjust so that red flares on
both sides of the crosshatch line will come to 1mm in thickness.

5) Repeat 3, 4, and attempt to further improve the focus quality.

– 16 –

Adjustment items Adjusting methods

Point to be noted during
G lens focus adjustment
(To be adjusted within
circles of 100mm diameter
contacting the left and
right of the bezel)

Focus adjustment
The method mentioned left is
applied to the focus adjustment
on the G lens adjustment of
43PH, 42W.The details of G
lens adjustment for 50PH,61PH,
50W, and 57W are described in
the previous page.

4) Adjust the G lens focus. (Applicable only to 43PH, 42W)
Watch the horizon of the left and right both ends of the screen (the range of
circle with 100mm diameter shown in the following sketch), make optimum
adjustments on the G lens focus, and check that the focus balance on the
right and left is satisfactory.

(Balance check of left-and-right G lens focus)

(1) Adjust the G lens focus best by crosshatch of the left end (or the right end).
(2) Check the focus of the right end (or the left end).

If the balance of the left and right lens focus (flare) is different, part it and
adjust to the medium quality.
Check the environment and confirm that the focus quality (including flare) is
within a tolerable range.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

Concerning items 1), 2), 3), and 5) of G adjustment, these are common to the ones
on the previous page.

3. R adjustment

1) Set to the R monochrome by lens cap.

2) Receive the image of Retma pattern.

3) Adjust the R electrical focus.
Adjust by focus volume of the focus block (Z410) so that the screen center will
come to optimum focus.

4) Adjust the R lens focus.
Adjust so that the screen center will become the best.

5) Repeat 3, 4, and attempt to further improve the focus quality.

– 17 –

Adjustment items Adjusting methods

Focus adjustment 4. B adjustment

GENERAL ADJUSTMENTS

1) Set to the B monochrome by lens cap.

2) Receive the image of Retma pattern.

3) Adjust the B electrical focus.
Adjust by focus volume of the focus block (Z410) so that the screen center will
come to optimum focus (point where the brightness gets minimized)

4) Receive the image of crosshatch pattern.

5) Adjust the B lens focus.
Pay attention to the border of the blue line and the black (background) in the vicin­ity of the screen center.
First of all, make coarse adjustments of the lens, and move the lens adjusting
screw to the right at the point being considered as the best focus. Then, the lines
of the border become clear. Check and confirm under the circumstance that a
flare appears. On the contrary, if the lens adjusting screw is moved to the left from
the situation, the flare will disappear, and at this point you will find a point from
which the borderline itself begins to go out of focus. Adjust to the very point where
the focus begins to go out.

SPECIFIC INFORMATIONS

– 18 –

Adjusting

standards

GENERAL ADJUSTMENTS

(Overlap the vertical center of the pattern with the center come in

can overlap precisely.

This will be carried out individually for the tubes of R, G, and B.

(Caution) Do not move HPOS and VPOS data.

mark of the screen) contact

SPECIFIC INFORMATIONS

Items Names Settings Input signals Measuring points Adjusting methods

Adjustment Dynamic mode Phillips Pattern Screen 1) Adjust the vertical and horizontal screen positions using Below 7mm

of screen (PAL-I) adjustment the centering magnet so that the center cross mark of the in diameter

position dummy screen and the cross mark of the Phillips pattern

adjustment until up-and-down flags appear on the screen. flag and

HIT Vertical Dynamic mode Phillips Pattern Screen 1) Set the screen size to WIDE Both the

VLIN amplitude WIDE mode (PAL-I) adjustment 2) Shorten the vertical amplitude by HIT data in the beginning upper

PAL 3) Subsequently, lengthen the vertical amplitude by HIT data the lower

WIDE until either up or down flag end is aligned with the screen end. one are to

amplitude SUPERLIVE (PAL-I) adjustment 2) Adjust by HIT so that the upper and lower areas inside he circle is

adjustment mode the circle of Phillips pattern may come in contact with the to contact the

PAL screen end. screen end

SUPERLIVE (Caution) Do not make VLIN adjustments

HIT Vertical Dynamic mode Phillips Pattern Screen 1) Set the screen size to SUPERLIVE The inside of

amplitude CINEMA mode (PAL-I) adjustment 2) Adjust the register marks on the top and bottom of Phillips

adjustment mode pattern.

PAL (Caution) Do not touch the centering magnet

HIT Vertical Dynamic mode Phillips Pattern Screen 1) Set the screen size to CINEMA

– 19 –

CINEMA

amplitude SUBTITLE (PAL-I) adjustment 2) Adjust the register marks on the top and bottom of Phillips

HIT Vertical Dynamic mode Phillips Pattern Screen 1) Set the screen size to SUBTITLE

SUBTITLE

adjustment mode pattern.

PAL (Caution) Do not touch the centering magnet

amplitude WIDE mode (PAL-I) adjustment 2) Adjust so that the number of register marks of flags on the the left and

adjustment left and right of Phillips pattern will come to 8 in total when right

PAL added. 8 ± 1 marks

WID Horizontal Dynamic mode Phillips Pattern Screen 1) Set the screen size to WIDE. Addition of

WIDE 3) Adjustment of the user center position is to be 0.

Adjusting

standards

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

adjustment NTSC mask.

NTSC LEADER-435B

WIDE

amplitude SUPERLIVE signals adjustment 2) Adjust so that the upper third one on the screen will come

Items Names Settings Input signals Measuring points Adjusting methods

NHIT Vertical Dynamic mode Monoscope Screen 1) Set the screen size to WIDE.

NVLI amplitude WIDE mode signal adjustment 2) The upper first one on the screen is to be hidden by the

NHIT Vertical Dynamic mode Monoscope Screen 1) Set the screen size to SUPERLIVE mode.

adjustment mode NTSC in contact with the screen end

NTSC LEADER-435B 3) Do not adjust NVLI.

SUPERLIVE

amplitude CINEMA signals adjustment 2) Adjust so that the 30 characters on the up-and-down and

adjustment mode NTSC left-and-right ends can come in contact with the screen end.

NTSC LEADER-435B

CINEMA

amplitude mode signal adjustment 2) Adjust so that the upper fifth one on the screen will come

adjustment SUBTITLE NTSC in contact with the screen end.

NHIT Vertical Dynamic mode Monoscope Screen 1) Set the screen size to CINEMA.

NHIT Vertical Dynamic Monoscope Screen 1) Set the screen size to SUBTITLE.

– 20 –

amplitude mode signal adjustment 2) Adjust the 25th left register mark to the left screen end.

adjustment WIDE NTSC

NTSC mode LEADER-435B 3) Do not adjust NVLI.

SUBTITLE

NWID Horizontal Dynamic Monoscope Screen 1) Set the screen size to WIDE.

NTSC mode LEADER-435B

WIDE

1. SCREEN ADJUSTMENT

CONVERGENCE ADJUSTMENT

The adjustment is carried out on four screens; 4 : 3 and 16 : 9
screens in both PAL and NTSC modes. When making the ad­justments, feed an external signal to make an synchroniza­tion.

Note:

The convergence circuit is a circuit to eliminate screen distor­tion and can not make a drastic correction such as to correct
entire screen size. An excessive correction may actuate the
protection circuit. So a care will be necessary.

1-1. Entering the Adjustment Menu

7 key

CONVER ADJUST MENU

1 Adjust PAL wide
2 PAL Wide to Others
3 Adjust PAL S.Live
4 Adjust PAL Cinema
5 Adjust PAL S.title

6 PAL to NTSC(Wide)
7 PAL to NTSC(ALL)
8 Adjust NTSC Wide

9 NTSC Wide to Others
10 Adjust NTSC S. Live
11 Adjust NTSC Cinema
12 Adjust NTSC S.title

Before proceeding to the adjustment for each screen, always
perform the adjustments for vertical size (HIT) and horizontal
size (WID) with the main deflection data changed.

Order of the adjusting screens is PAL 4 : 3 → PAL 16 : 9 →
NTSC 4 : 3 → NTSC 16 : 9.

The menu order is 1~7 .... when the vertical sync is 50 Hz. (In

this case, item 8~12 are not displayed)

The menu order is 8~12 .... when the vertical sync is 60 Hz. (In

this case, item 1~7 are not displayed)

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

7 key

Fig. 1

– 21 –

1-2. Remote Control Key

p

CALL

1

GENERAL ADJUSTMENTS

i

456

g
b

7

j

NexT View

MENU

SPECIFIC INFORMATIONS

DVD

MENU

n

NexT

-View

h

2

3

l

k

8

9

0

I

EXIT

a o key ............... Push this key twice and the set con-

sole menu key to enter the service

mode.

b 7 key ................. Push 7 key to enter and cancel the

convergence menu.

g 5 key ................. Cursor shift / data change mode

change-over.

h 2 key ................. Cursor up / adjusting point up.

i 4 key ................. Cursor left / adjusting point left

j 8 key ................. Cursor down / adjusting point down

k 6 key ................. Cursor right / adjusting point right

l 3 key ................. Cursor colour change (Adjusting

colour selection).

m S key ................ Execution key on convergence menu.

n s key ................ Up key on convergence menu.

o t key ................ Down key on convergence menu.

m

o

R

TV
VCR
DVD

G

C

Y

a

Fig. 2

– 22 –

1-3. Adjusting Screen

1) Adjusting menu

NO Description

1 Adjust PAL Wide Used for manual adjustment of the Wide/4:3 screen in the PAL mode.

2 PAL Wide to others Automatically saves approximate supplementary data for the other PAL screens based

3 Adjust PAL S.Live Used for manual adjustment of the PAL Super Live screen.

4 Adjust PAL Cinema Used for manual adjustment of the PAL Cinema screen.

5 Adjust PAL S.title Used for manual adjustment of the PAL S.title screen.

Item

Returns to the original screen data screen before data conversion, explained below.

on the PAL Wide/4:3 screen data.
First, the PAL Wide/4:3 screen data are converted to Super Live and the values are
saved. Next, the data are converted to Cinema and the values are saved. Finally, the
data are converted to Subtitle and the values are saved, and then the operation ends.
Manually check the other screen modes as described below and make corrections if
distortion, etc., is present.

Please be aware that all PAL screens are re-adjusted when this menu is selected and
executed.

Select this mode for Super Live screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

Select this mode for Cinema screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

Select this mode for S.title screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

6 PAL to NTSC (Wide) PAL Wide/4:3 screen data is calculated, converted to NTSC Wide/4:3 approximate

data and saved.
To assure accurate adjustments, select the manual mode explained below and check,
then apply color matching and distortion adjustments.

7 PAL to NTSC (All) Data for all PAL screens is converted to approximate data for the NTSC screens and

saved.
To assure accurate adjustments, select the manual mode explained below and check,
then apply color matching and distortion adjustments.

8 Adjust NTSC Wide Used for manual adjustment of the NTSC Wide/4:3 screen.

Select this mode for Wide/4:3 screen color matching and distortion adjustment.

Use the specified dimensions when adjusting.

9 NTSC Wide to others Approximate supplementary data for the other NTSC screens is automatically saved

based on the NTSC Wide/4:3 screen data.
First, the NTSC Wide/4:3 screen data are converted to Super Live and the values are
saved. Next, the data are converted to Cinema and the values are saved. Finally, the
data are converted to Subtitle and the values are saved, and then the operation ends.
Manually check the other screen modes as described below and make corrections if
distortion, etc., is present.

Please be aware that all NTSC screens are re-adjusted when this menu is selected
and executed.

– 23 –

NO Description

10 Adjust NTSC S.Live Used for manual adjustment of the NTSC Super Live screen.

11 Adjust NTSC Cinema Used for manual adjustment of the NTSC Cinema screen.

12 Adjust NTSC S.title Used for manual adjustment of the NTSC Subtitle screen.

GENERAL ADJUSTMENTS

2) Adjustment Screen

SPECIFIC INFORMATIONS

Item

Select this mode for Super Live screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

Select this mode for Cinema screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

Select this mode for Subtitle screen color matching and distortion adjustment.
Use the specified dimensions when adjusting.

X : 1
Y : 1
C : R
S : 08

Wide

Displayed when the cursor blinks and cleared
when the cursor lights steady.

X Cursor horizontal position display

Displayed when the cursor blinks and
cleared when the cursor lights steady.

Displays the current screen mode.

Y Cursor vertical position display
C Cursor color select display
S Menu select display

3) Adjustment Sequence
When the initial screen opens, X = 1, Y = 1, C = R and S = [Select Menu] are displayed as the defaults. The cursor can
now be moved up, down, left and right using the (2), (8), (4) and (6) keys of the remote control. Select the desired
adjustment and press the (5) key; the cursor will light steady and the screen display will be cleared. Again press the (2),
(8), (4) and (6) keys of the remote control to adjust the shape of the screen. When adjustment has been completed, press
the (+) key to return to the Adjustment Menu. When all of the screen adjustments have been completed, turn off the main
power supply of the set to reset the menu.

– 24 –

2. Case Study

In many cases, color matching problems can be solved by returning the HIT and WID data for main deflection to the
initial adjustment values. Convergence cannot be re-adjusted in the following cases.

2-1 When the CRT has been replaced

Main deflection re-adjustment and color matching are necessary when the CRT has been replaced. Use the following
procedure.

1. Replace the blue and red CRTs.

2. Perform the blue and red yoke horizontal adjustments in relation to the green CRT. Press the yokes and speed
modulation coils + alignments onto the CRTs and fasten after making sure that there are no gaps.

3. Adjust the blue and red alignments (refer to the detailed alignment adjustment item).

4. Use centering magnets to center the blue and red CRTs in relation to the green CRT.

5. Adjust the main deflection HIT and WID data, using the most accurate location in relation to the green as data.

6. Use convergence to match the colors for each screen. Green will not work at this time.

7. When the convergence adjustments have been completed for all screens, then replace the green CRT.

Repeat the procedures in steps 2 - 5 for the green CRT but this time use convergence to match the colors using red and
blue as reference.

2-2 When replacing the convergence unit

Generally, all of the screens must be re-adjusted when the convergence unit is replaced, but the process can be greatly
shortened by using the following method.

1. Replace the memory (Q711, Q712, Q713) of the new unit with the memory (Q711, Q712, Q713) of the defective unit.
This makes it possible to quickly reproduce the previous screen status when installed in the set.

2. Install the new unit with the old memory in the set and turn on the power. The entire screen will move linearly in either
the vertical or horizontal direction.

3. Use centering magnets to re-adjust the green, red and blue centers.

4. There is possibility of color mismatching or differences in screen size when the various screens are checked. In such
case, adjust the main deflection and apply a slight amount of convergence color matching.

2-3 When none of the above cases apply (rare case)

An unexpected situation or major operational error, etc., could be considered but it is recommended that all screens be
matched starting from the beginning. If the initial positions of the centering magnets are unknown, disconnect the
connectors for the convergence sub-yoke outputs one at a time, adjust the CRT centering and then start the following
adjustments.

1. Make sure that there is plenty of room for the static cross convergence to be moved left, right, up and down. If
sufficient space is not available, move to an appropriate location and then re-adjust the centering.

2. Enter the convergence adjustment mode and call out the menu. (Leave the PAL signal connected.)

3. Select 1. Adjust PAL Wide and adjust the PAL mode Wide/4:3 screen manually in accordance with the dimension

diagram.

4. When the Wide/4:3 screen adjustment has been completed, return to the Main Menu and select 2. PAL Wide to

others.

The screen will change automatically and the Wide, Cinema and Subtitle screens will be created automatically.

5. Next, select 3. Adjust PAL S.Live and mainly adjust in the horizontal direction in accordance with the dimension

diagram.

6. Next, select 4. Adjust PAL Cinema and fine adjust to remove any Cinema screen distortion.

7. Next, select 5. Adjust PAL Subtitle and fine adjust to remove any Subtitle screen distortion.

8. Next, select 7. PAL to NTSC (ALL), then calculate and copy the data for all PAL screens in the NTSC mode. At this

time, the calculations and screen shape changes will be performed automatically and the NTSC screen data
corresponding to the PAL screens will be transferred.

9. Select in sequence 8. Adjust NTSC Wide, 10. Adjust NTSC S.Live, 11. Adjust NTSC Cinema and 12. Adjust NTSC

Subtitle, check the respective NTSC screen modes and, if necessary, adjust for any distortion.

GENERAL ADJUSTMENTS

SPECIFIC INFORMATIONS

All of the screens can be adjusted with the above process but make every effort not to change the factory data unless
absolutely necessary. Try not to change the convergence data any more than necessary.

– 25 –