Toshiba 61PH18P Schematic
FILE NO. 030-200114
SERVICE MANUAL
COLOUR TELEVISION
C01P Chassis
61PH18P
PUBLISHED IN JAPAN Sep., 2001 So
CHAPTER 1 GENERAL ADJUSTMENTS
SAFETY INSTRUCTIONS ........................................................................................................................................ 3
CRT ASSEMBLY REPLACEMENT AND MOUNTING.............................................................................................. 4
PICTURE TUBE COMPONENTS ADJUSTMENT.................................................................................................... 6
SERVICE POSITION ................................................................................................................................................ 9
SERVICE MODE .................................................................................................................................................... 10
DESIGN MODE ...................................................................................................................................................... 13
GENERAL ADJUSTMENTS
ELECTRICAL ADJUSTMENT ................................................................................................................................. 14
CONVERGENCE ADJUSTMENT .......................................................................................................................... 20
SCREEN AND MIRROR ALIGNMENTS ................................................................................................................ 25
CIRCUIT CHECKS ................................................................................................................................................. 26
CHAPTER 2 SPECIFIC INFORMATIONS
SETTING & ADJUSTING DATA ..............................................................................................................................27
LOCATION OF CONTROLS ................................................................................................................................... 28
CIRCUIT BLOCK DIAGRAM .................................................................................................................................. 30
TABLE OF CONTENTS
MECHANICAL DISASSEMBLY .............................................................................................................................. 31
CHASSIS AND CABINET REPLACEMENT PARTS LIST ......................................................................................35
PC BOARDS LAYOUT TOP VIEW .......................................................................................................................... 61
PC BOARDS BOTTOM VIEW................................................................................................................................. 63
TERMINAL VIEW OF TRANSISTORS ................................................................................................................... 76
SPECIFICATIONS .................................................................................................................................................. 79
APPENDIX:
CIRCUIT DIAGRAM
– 2 –
CHAPTER 1 GENERAL ADJUSTMENTS
SAFETY INSTRUCTIONS
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 27)
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
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.
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 20.)
7. WHITE BALANCE ADJUSTMENT (page 14.)
Adjustments are complete.
Silicon
(On shaded area)
TSE3843W #23960136
Anode Cap
GENERAL ADJUSTMENTS
2 ~ 5 mm
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
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 -/-- (INFO) button on Remote. (Y-MUTE : ON)
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 -/-- (INFO) button on Remote. (Return to
Normal Picture)
(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 slots 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 TV/VIDEO 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 VERT. LINEARITY adjustment. (See page 14.)
7. Perform WIDTH adjustment. (See page 14.)
8. Check whole quality of green line.
9. Adjust R, B centering magnet so that the cross-hatch pattern center comes to screen center.
– 7 –
LOCATION OF SCREEN AND FOCUS VR'S
To remove the Speaker grille and Front panel.
GENERAL ADJUSTMENTS
RGB
FOCUS VR's
SCREEN VR's
REPLACEMENT OF HIGH VOLTAGE CABLE
ANODE LEAD
RUBBER BOOT
LEAD HOLDER
Fig. a
Z450 TPA5007
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.
2. Detaching Lead Holder
OLD
ANODE LEAD
or
ANODE CAP
LOCK
RUBBER BOOT
LEAD HOLDER
Fig. b
Cut here rubber boot
and lead together to
detach Lead Holder.
– 8 –
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
– 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.
Screen adjustment mode ON/OFF: -/-- (INFO) 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 27)
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
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
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 27)
3. ADJUSTING THE DATA
Pressing of VOLUME s or t button will change the value of data.
Press
Press
ITEM
DATA
GENERAL ADJUSTMENTS
– 13 –
ELECTRICAL ADJUSTMENT
ITEM ADJUSTMENT PROCEDURE
WIDTH
(WID)
VERTICAL LINEARITY
(VLIN)
GENERAL ADJUSTMENTS
HEIGHT
(HIT)
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 10
steps.
Note : Check the horizontal picture position is correct.
1. Call up the adjustment mode display, then select the item VLIN.
2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears
on the screen.
3. Press the VOLUME s or t button to
obtain the picture of the best linearity
Center
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 11 steps.
Note : Check the vertical picture position is correct.
WHITE BALANCE
(RCUT)
(GCUT)
(BCUT)
(RDRV)
(BDRV)
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 -/-- (INFO) 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 -/-- (INFO) button on Remote. (Return to Normal Picture)
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.
)
– 14 –
C01P: Series (Reference factory adjustment)
Adjusting
standards
For details,
refer to [focus
adjusting
method]
mentioned in
the next page.
8750k-0.002uv
8750k-0.002uv
).
2
)
2
GENERAL ADJUSTMENTS
TP46B 1) Adjust the amplitude from the pedestal level to the 2.3 ± 0.1Vpp
Sub-bright signals
(PAL-I signals) SIGNAL unit white peak
signals adjustment signal
Picture model
Audio system: I
Picture mode 1 Sub-bright Screen 1) Adjust the number of black collapsed lines of the sub-bright 4 ± 1.5 lines
adjust the screen VR to the point which starts lighting.
and B.
2) Adjust after adjusting W/B, SCNT.
Surface of 1) Darken the environment as much as possible. Point which
3) Directly observe the surface of Cathode Ray Tube and
Cathode Ray 2) Set to factory-set screen adjusting MODE. starts lighting
Tube (Y mute, DRV.CUT. = 40H)
4) Make above-mentioned adjustments for each tube of G, R,
Crosshatch 2) Use the jig and shade the CRT except the axes under
and B.
signal adjustment
Factory-set
Sub-contrast
Sub-bright
center
Items Names Settings Input signals Measuring points Adjusting methods
BRTC
SCNT
PAL (PAL)
center signal SIGNAL unit 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
SECAM 2) Adjust the P-P value of the upper half.
center color bar SIGNAL unit (Apply screen MUTE at the time of adjustment)
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 the same as the H.BLK level.
SRY SECAM SECAM TP02 1) Adjust so that the black and white signal level will become 0 ± 10mV
B-Y black level color bar SIGNAL unit the same as the H.BLK level.
SBY SECAM SECAM TP01 1) Adjust so that the black and white signal level will become 0 ± 10mV
adjusting mode screen
adjustment
Screen Screen
Focus Focus Picture mode 1 Retma signal Screen 1) Adjust to the best position by repeating electrical focus and
– 15 –
adjustment (PAL-I) adjustment optical focus
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
. 3) Make above-mentioned adjustments for each tube of G, R,
BCUT adjustment
Midpoint Picture moce 1 Phillips Pattern Between TP-V 1) Digital voltage connection between the TP-V 10 ± 10mV
voltage (PAL-I) and TP-G and the TP-G, and adjust to 10mV
Voltage
adjust-
ment of
vertical
midpoint
Adjustment items Adjusting methods
Focus adjustment
GENERAL ADJUSTMENTS
The items of G lens adjustment mentionedin 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 4, 5, and attempt to further improve the focus quality.
– 16 –
Adjustment items Adjusting methods
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 (orthe 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.
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)
GENERAL ADJUSTMENTS
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.
– 18 –
Adjusting
standards
A voltmeter is connected between TPV and TPG, and VCEN 10 ± 10mV
can overlap. indiameter.
Do the same on the 3 tubes of R, G, and B individually.
(Caution) Do not move the HPOS, VPOS data.
to the center mark of the screen.)
until whichever the end ofthe up or down flag overlaps with
the screen end. (Adjust the vertical center of the Pattern
GENERAL ADJUSTMENTS
voltage
adjustment 2) Subsequently, extend the vertical amplitude by HIT data contact
amplitude (PAL I) adjustment are hidden. be hidden.
adjustment
LEADER-435B
amplitude 16:9 mode (PAL I) adjustment contact the 16:9 frame.
adjustment
adjustment NTSC 2) Up-and-down balance is to be kept well
amplitude signals adjustment the left side of the screen edge.
LEADER-435B
adjustment NTSC
amplitude 16:9 mode signals adjustment 16:9 frame.
LEADER-435B
adjustment NTSC
Items Names Settings Input signals Measuring points Adjusting methods
Screen Picture mode 1 Phillips Pattern Screen 1) Adjust the vertical and horizontal screen positions This is to be
voltage TP-G→ – mater data adjusts so that this voltage may be see to 10mV
V-center Picture mode 1 Phillips Pattern TP-V→ +
adjustment on the DEF
position (PAL-I) adjustment using a centering magnet so that the center cross mark of shorter than
adjustment the dummy screen and the cross mark of the Phillips Pattern 7 mm
HIT Vertical Picture mode 1 Phillips Pattern Screen 1) In the first place, shorten the vertical amplitude by HIT data Up or down
VLIN amplitude (PAL I) adjustment until up-and-down flags appear on the screen. flagis to
WID Horizontal Picture mode 1 Phillips Pattern Screen 1) Adjust so that the left and right flags of Phillips Pattern Flags are to
HIT Vertical Picture mode 1 Phillips Pattern Screen 1) Adjust so that the upper part of the screen will
– 19 –
NHIT Vertical Picture mode 1 Monoscope Screen 1) The first line on the upper part of the screen is to be hidden
NVLI amplitude signals adjustment by the mask
NWID Horizontal Picture mode 1 Monoscope Screen 1) Adjust so that the vertical 2.5 line on the screen will contact
NHIT Vertical Picture mode 1 Monoscope Screen 1) Adjust so that the upper part of the screen will contact the
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
GENERAL ADJUSTMENTS
protection circuit. So a care will be necessary.
1-1. Entering the Adjustment Menu
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 → 2 → 3 → 1 → .... when the vertical
sync is 50 Hz. (In this case, item 4~6 are not displayed)
The menu order is 4 → 5 → 6 → 4 → .... when the vertical
sync is 60 Hz. (In this case, item 1~3 are not displayed)
1. ADJUST PAL 4:3
2. PALL 4:3 TO OTHERS
3. ADJUST PAL 16:9
4. ADJUST NTSC 4:3
5. NTSC 4:3 TO NTSC 16:9
6 ADJUST NTSC 16:9
Fig. 1
– 20 –
1-2. Remote Control Key
F
b
h
1 2 3
i
4 5 6
g
7 8 9
INFO.
0
NexTView
n
SIZE
P
ENTER
CALL
TEXT
TV
P
l
k
j
m
a o key ............... Push this key twice and the set con-
sole menu key to enter the service
mode.
b F key ................. Push this key and 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.
GENERAL ADJUSTMENTS
MENU
VTR / DVD
VTR / DVD
EXIT
P
o
a
Fig. 2
– 21 –
2. Picture
a) 50 Hz mode (PAL) . . . . Correcting point: Horizontal 8 x Vertical 8 (Arrow marks denote correcting point)
The first picture
GENERAL ADJUSTMENTS
The first picture
Crosshatch pattern. Pattern colors are three color display. Cursor is blinking in red. When changed, condition is last memory
state.
Cursor is .......... Data change mode in lighting,
Cursor shifting mode in blinking.
Display color shows the color that data change is possible.
The second picture
When entering from the first picture to the second picture, correcting wave of convergence is muted for one second.
During this period, the changed data is transferred from RAM
Q701 to E2PROM Q713, and saved.
The second picture
Data display
Screen centerCursor (red)
(Blinking)
The second picture is indicated with data on top left of the first
picture, therefore, convergence cannot be adjusted by this picture.
Caution:
, Receive suitable signal for adjustment. Centering of
green picture can be done in 50 Hz mode (PAL).
, Centering of 60 Hz mode (NTSC) can be adjusted by
convergence adjustment. Besides, decide the center
by cross pattern of static convergence in menu, and
adjust convergence from center to circumference.
– 22 –
b) 60 Hz mode (NTSC) . . . . Correcting point: Horizontal 8 x Vertical 7 (Arrow marks denote correcting point)
The first picture
Cursor (red)
(Blinking)
Screen center
The first picture
Crosshatch pattern. Pattern colors are three color display. Cursor is blinking in red. When changed, condition is last memory
state.
Cursor is .......... Data change mode in lighting,
Cursor shifting mode in blinking.
Display color shows the color that data change is possible.
The second picture
When entering from the first picture to the second picture, correcting wave of convergence is muted for one second.
The second picture
Data display
GENERAL ADJUSTMENTS
During this period, the changed data is transferred from RAM
Q701 to E2PROM Q713, and saved.
The second picture is indicated with data on top left of the first
picture, therefore, convergence cannot be adjusted by this picture.
Caution:
, Receive suitable signal for adjustment. Decide the center
by cross pattern of static convergence in menu, and adjust
convergence from center to circumference.
– 23 –
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