Toshiba 43VR9UM, 50VR9UM Schematic
FILE NO. 040-200313
SERVICE MANUAL
COLOUR TELEVISION
VR9PJ Chassis
43VR9UM
50VR9UM
Jul., 2003
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 ................................................................................................................................. 18
SCREEN AND MIRROR ALIGNMENTS ....................................................................................................................... 33
CIRCUIT CHECKS ........................................................................................................................................................ 34
CHAPTER 2 SPECIFIC INFORMATIONS
SETTING & ADJUSTING DATA ..................................................................................................................................... 35
LOCATION OF CONTROLS .......................................................................................................................................... 36
PROGRAMMING CHANNEL MEMORY........................................................................................................................ 38
TABLE OF CONTENTS
MECHANICAL DISASSEMBLY ..................................................................................................................................... 40
CHASSIS AND CABINET REPLACEMENT PARTS LIST .............................................................................................41
PC BOARDS BOTTOM VIEW ........................................................................................................................................ 59
TERMINAL VIEW OF TRANSISTORS .......................................................................................................................... 71
CIRCUIT BLOCK DIAGRAM ......................................................................................................................................... 73
SPECIFICATIONS ..................................................................................................................................................... END
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 35)
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 –
CRT ASSEMBLY REPLACEMENT AND MOUNTING
CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR
SEALING OF CRT COOLANT.
RGB
GENERAL ADJUSTMENTS
8 o'clock
4 o'clock
Lens Assembly
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.
4 Screws
4 Screws
CRT Assembly
CRT Anode Cap Assembly
S.V.M. Coil
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.
Anode Cap
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 18.)
WHITE BALANCE ADJUSTMENT (page 14.)
7.
Adjustments are complete.
Silicon
(On shaded area)
TSE3843W #23960136
15 ~ 25 mm
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
Screw for SVM coil
■ 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
– 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
User convergence center check
Centering (PAL)
Convergence adjustment
(PAL/NTSC)
GENERAL ADJUSTMENTS
Yoke horizontal
DESCRIPTION OF NECK COMPONENTS
2
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.
Sub bright adjustment
White balance
End
1
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.
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 a button on PJTV. (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.
(Looking to the lens in order to check the raster.)
7. Press the a button on PJTV. (Return to Normal
Picture)
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 white cross-hatch (or white
cross-dot). (White cross-hatch or white cross-dot on a black
background. 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 white cross-hatch (or white
cross-dot) 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.
(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-
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.)
– 6 –
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. 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: 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.
12. Check the GREEN focus of the whole screen and if
necessary repeat steps 10 and 11.
13. Fix the GREEN lens by tightening up its fixing screws.
14. Expose only BLUE by covering the RED and GREEN
lenses with caps.
15. Display the internally-generated black cross-hatch.
16. Loosen the BLUE lens fixing screws (refer to Fig. a), and
adjust the BLUE lens focus while observing the middle
and peripheral screen sections.
17. 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.)
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).
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 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.
Note: Keep in mind that only the BLUE electric focus is ad-
justed with the black cross-hatch.
18. Check the BLUE focus of the whole screen and if necessary repeat steps 17 and 19.
19. Fix the BLUE lens by tightening its fixing screws.
Note: The aim of the abov
e-descr
ibed adjustment procedure
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.)
GENERAL ADJUSTMENTS
– 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
Front grille
REPLACEMENT OF HIGH VOLTAGE CABLE
ANODE LEAD
RUBBER BOOT
LEAD HOLDER
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
RUBBER BOOT
OLD
ANODE LEAD
or
ANODE CAP
Fig. a
Z450 TPA5007
– 8 –
LOCK LEAD HOLDER
Fig. b
Cut here rubber boot
and lead together to
detach Lead Holder.
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAU-
TION" 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.
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
“COLC” 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 35)
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 completed.
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
PAL signals (5 patterns)
NTSC 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 : White
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: hour)
Operation number of protecting circuit ----“00” is nor-
mal.
When indication is other than “00”, overcurrent is apt
to flow, and circuit parts may possibly be damaged.
BUS CONT ----“OK” is normal.
When indication shows “Q uuu (Green: OK, Red:
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 (a3)
V4 : VIDEO 4 input mode (a4)
The items marked with are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.
*
– 12 –
DESIGN MODE
1. ENTERING TO DESIGN MODE
ITEM
DATA
S D
Press
(Design mode) (Adjustment mode)
Press
3) Press MENU button on TV.
2) While pressing CALL button on Remote
and press MENU button on TV.
1) Select the Service mode.
When QA02 is initialized, items “OPT0” and “OPT1” 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” and “OPT1”.
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 35)
3. ADJUSTING THE DATA
Pressing of VOLUME s or t button will change the value of 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 15
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 9 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 -/-- 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.
(Looking to the lens in order to check the raster.)
6. Press the -/-- 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 –
Adjusting
standards
11500k +
10500k +
).
2
).
2
GENERAL ADJUSTMENTS
adjust the screen VR to the point that starts lighting.
(Y mute, DRV.CUT=40H)
3) Adjust the COLC after adjusting the SCNT.
3) Adjust the COLS after adjusting the COLC.
3) Directly observe the surface of Cathode Ray Tube and
and B.
4) Make above-mentioned adjustments for each tube of G, R,
adjustment.
and B..
3) Make above-mentioned adjustments for each tube of G, R,
2) Use the jig and shade the CRT except the axes under
signal adjustment signals.
(J2ch) white peak.
(J2ch) 2) Adjust after adjusting W/B, SCNT.
Items Names Settings Input signals Measuring points Adjusting methods
BRTC Sub-brightness Dynamic mode Sub-bright Screen 1) Adjust the number of black collapsed lines of sub-bright 4 ± 1.5 bars
SCNT Sub-contrast Dynamic mode Sub-bright signal TP46R 1) Adjust amplitude from the pedestal level up to the 1.80Vop
(J2ch) 2) Confirm that video muting is made.
NTSC signal (Adjust the P-P value of the upper half)
COLC Sub-color Dynamic mode Sub-bright TP46B 1) Adjust the amplitude of the rainbow color bar . 1.50Vop
(E2ch) 2) Adjust the P-P value of the upper half.
SECAM color bar (Apply video muting at the time of adjustment)
COLS Sub-color Dynamic mode SECAM TP46B 1) Adjust the amplitude of the color bar. 2.0Vop
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 –
(PAL) and TP-G and TP-G, and adjust it to 0 ± 10mV by VPOS data.
Dynamic mode Philips Pattern Between TP-V 1) Connect a digital voltmeter between TP-V
Focus Focus Dynamic mode Retma signal Screen 1) Adjust to the best position by repeating electrical focus and
adjustment Dot-cross signal adjustment optical focus adjustments.
RDRV Bright part Screen 1) Adjust the color temperature of the bright part (103cd/m
BDRV W/B adjustment 0.0075duV
RCUT Dark part W/B Screen 1) Adjust the color temperature of the dark part (17cd/m
BCUT adjustment 0.0105duV
Voltage
measure-
ment at
Screen Dynamic mode Philips Pattern Screen 1) Adjust the centering magnet so that the posotion of screen
positioning (PAL) Set: Face to east is in the center of the dummy screen (cross mark).
vertical
midpoint
adjustment
Adjusting
standards
GENERAL ADJUSTMENTS
end.
the east until either upper or lower flag end is aligned with the screen
come to 7 in total (3.5 each for left and right) when added.
the east register flags on the left and right of Philips pattern will
(2) Select the item of MWBRC to adjust the number of black blurred to 4 ± 1.5.
(2) Observe PU03#7 (R–Y).
(3) Select the item of MWBR to adjust the DC offset amount to 0 ± 10 mV.
(4) Observe PU02#7 (B–Y).
(5) Select the item of MWBR to adjust the DC offset amount to 0 ± 10 mV.
adjustment Set: Facing to 2) Subsequently, lengthen the vertical amplitude by HIT data
Items Names Settings Input signals Measuring points Adjusting methods
HIT Vertical Dynamic mode Philips Pattern Screen 1) Shorten the vertical amplitude by HIT data in the beginning
VLIN amplitude (PAL) adjustment until upper and lower flags appear on the screen.
adjustment Set: Facing to 2) Lengthen the vertical amplitude so that the number of
WID Horizontal Dynamic mode Philips Pattern Screen 1) Shorten the amplitude by lowering the WID data in the (See Page 19)
(43"/50") amplitude (PAL) adjustment beginning until the left and right flags appear comletely.7 ± 1 marks
Horizontal (PAL) adjustment center.
phase 100Hz (DFS) Set: Facing to (Adjusting the horizontal phase only)
adjustment the east
Horizontal (NTSC) adjustment center.
phase 100Hz (DFS) Set: Facing to (Adjusting the horizontal phase only)
adjustment the east
STRP Conver Pattern Dynamic mode Philips Pattern Screen 1) Adjust the Conver Pattern center to the Philips Pattern
NSTR Conver Pattern Dynamic mode Retma Pattern Screen 1) Adjust the Retma Pattern center to the Philips Pattern
– 16 –
Condition: After adjusting the main screen
Adjustment: (1) Receive a local signal, domestic 2 ch on both the main screen and sub screen.
1. Sub screen's sub-brightness adjustment
[Data adjustment}
Sub screen adjustment procedures
Condition: After adjusting the sub screen
Adjustment: (1) Receive a total black signal on both the main screen and sub screen.
1. Sub screen's color difference DC offset adjustment
<Reference data>
Viewpoint of WID (adjustment of horizontal amplitude) .... left and right flags
Left side
Left flag end
3rd flag
4th flag
1st flag
2nd flag
Right side
GENERAL ADJUSTMENTS
0
0
1st flag
2nd flag
3rd flag
4th flag
Right flag end
Adjust the WID data so that the number of register flags on the left and
right of Phillips pattern will come to 7 in total when added.
Direction of adjustment: Facing to the east
– 17 –
CONVERGENCE ADJUSTMENT
1. PICTURE ADJUSTMENT
The adjustment can be done on 7 screens; PAL 100 Hz, PAL
625P, NTSC 525P, 1080i 50 Hz 4:3 or 16:9, 1080i 60 Hz 4:3 or
16:9. To synchronize correction wave to each frequency, receive the suitable signal.
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.
2
1-1. Change of Memory (E
GENERAL ADJUSTMENTS
Memories of E2PROM (QH173, QH174, QH175) are nonvolatile, and used for storing adjusted data. Since data in RAM of
QH100 is eliminated with power OFF, the RAM is set by soft
command of micro-processor QA01 at each time of power ON.
The adjusted data which is obtained from screen-watching is
once stored in RAM inside QH001. The whole data in RAM
which is corrected on each adjusting point and is changed, is
saved into E
The data capacity per one screen requires 8k for 100 Hz, 625P
mode (PAL), and 4k for 525P mode (NTSC), 1080i 50 Hz 4:3,
16:9, and1080i 60 Hz 4:3, 16:9.
2
PROM (QH173, QH174, QH175) as a fixed data.
PROM)
1-2. Service Mode
1-2-1. Outline
Service mode is controlled by software of micro-processor
QA01, and is one of function of set.
This mode has been designed so that ordinary user cannot
use this, and special operation is required to use this.
Data change is done by direct shift (cursor display) of
adjusting points. 100 Hz, 625P mode (PAL) 8 x 8/1 color and
525P mode (NTSC), 1080i 50 Hz 4:3, 16:9, 1080i 60 Hz 4:3,
16:9 8 x 7/1 color.
1-2-2. To Enter and to Exit
Press mute (o) key on remote hand unit at twice, and hold it
down, then press MENU key of set console. The service data
will be display on the top left screen. Under this condition, press
"F+b" keys on remote hand unit so that the CONVER ADJUST MENU appears on the screen. Further, the screen returns
to original picture when you press "F+b" again.
o + o + MENU
F + b KEY
s or t
MENU Selection
+ KEY
SCREEN
adjustment
Note: Before proceeding to the adjustment for each screen, always perform the adjustments for vertical size (HIT) and horizon-
tal size (WID) with the main deflection data changed.
Menu Screen
CONVER ADJUST MENU
1: ADJUST PAL 100Hz
2: PAL TO OTHER ALL
3: ADJUST PAL 625P
4: NTSC 525P
5: ADJUST 1080i 50 Hz 4:3
6: ADJUST 1080i 50 Hz 16:9
7: ADJUST 1080i 60 Hz 4:3
8: ADJUST 1080i 60 Hz 16:9
+ KEY
After saving DATA (And return to MENU)
Service data display
F + b KEY
Exit from CONVER ADJUST MENU
ADJUSTING SCREEN
S
– 18 –
1-2-3. Adjustment menu
• Before adjusting convergence, make sure that the main adjustment has been done correctly.
• To do the adjustment for each mode of NO.1, 3-8, the suitable signal and picture mode corresponding with each mode
are necessary.
• Basing on the data of PAL 100Hz, the other data of whole modes can be calculated and saved after entering ‘’PAL TO
ATHER ALL’’ in NO.2. Never do this unless there is a excessive deviation, otherwise a data other than PAL 100 Hz
may be overwritten in.
No.
Item
1
ADJUST PAL 100Hz
2
PAL TO OTHER ALL
3
ADJUST PAL 625P
4
ADJUST NTSC 525P
5
ADJUST 1080i 50 Hz 4:3
6
ADJUST 1080i 50 Hz 16:9
7
ADJUST 1080i 60 Hz 4:3
8
ADJUST 1080i 60 Hz 16:9
Description
Allows manual adjustment in PAL mode.
Perform the adjustments according to dimensions specified.
Automatically saves auxiliary forecasted data by referring PAL 100Hz screen.
The calculated data are saved on PAL 625P, NTSC 525 P, 1080i 50 Hz 4:3, 16:9,
1080i 60 Hz 4:3, 16:9 screen, and then the operation completes.
In this case, PAL 625P, NTSC 525P, 1080i 50 Hz 4:3, 16:9, 1080i 60 Hz 4:3, 16:9
screens are created through the calculation process. Perform check in manual mode,
and correct them if there are some problems in color deviation, distortion, etc..
Take care that PAL 625P, NTSC 525P, 1080i 50 Hz 4:3, 16:9, 1080i 60 Hz 4:3, 16:9
screens will be modified again when adjusting with this menu selected.
Allows manual adjustment for PAL 625P screen.
Select this mode when performing adjustment for color matching and correction of
distortion for PAL 625P are required.
Perfom the adjustments according to dimensions specified.
Allows manual adjustment for NTSC 525P screen.
Select this mode if color adjustment and distortion correction for NTSC 525P are
necessary.
Perfom the adjustments according to dimensions specified.
Allows manual adjustment for 1080i 50 Hz 4:3 screen.
Select this mode if color adjustment and distortion correction for 1080i 50 Hz 4:3
screen are necessary.
Perfom the adjustments according to dimensions specified.
Allows manual adjustment for 1080i 50 Hz 16:9 screen.
Select this mode if color adjustment and distortion correction for 1080i 50 Hz 16:9
screen are necessary.
Perfom the adjustments according to dimensions specified.
Allows manual adjustment for 1080i 60 Hz 4:3 screen.
Select this mode if color adjustment and distortion correction for 1080i 50 Hz 4:3
screen are necessary.
Perfom the adjustments according to dimensions specified.
Allows manual adjustment for 1080i 60 Hz 16:9 screen.
Select this mode if color adjustment and distortion correction for 1080i 50 Hz 16:9
screen are necessary.
Perfom the adjustments according to dimensions specified.
GENERAL ADJUSTMENTS
– 19 –
2. KEY FUNCTION OF REMOTE CONTROL UNIT
h
F CALL
GENERAL ADJUSTMENTS
f
MENU EXIT
DVD
MENU
21 3
54 6
87 9
0
CH
d
g
e
c
a
b
a 0 key .................. Green test pattern ON/OFF
b b key ............ Mode picture change over
c 8 key ................. Cursor down / adjusting point down
d 2 key ................. Cursor up / adjusting point up
e 6 key ................. Cursor right / adjusting point right
f 4 key ................. Cursor left / adjusting point left
g 3 key ................. Cursor color change
h F key ................. Push this key and ^ key to enter the
convergence menu
i o key ............... Push this key twice and the set con-
sole menu key to enter the service
mode.
ENTER
CH
TV
VCR
DVD
STILLTEXT/TV
PIP PIP CHSEARCH STROBE
i
– 20 –
3. Picture
a) 100 Hz, 625P mode (PAL) . . . . Correcting point: Horizontal 8 x Vertical 8 (Arrow marks denote correcting point)
The first picture
Screen centerCursor (red)
(Blinking)
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.
Cursor color Red: Yellow
Green: Green
Blue: Blue
Display color shows the color that data change is possible.
The second picture
Data display
GENERAL ADJUSTMENTS
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.
, Be sure to check if centering is adjusted correctly before
adjusting convergence.
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
QH001 to QH713 (PAL 100Hz) QH714 (PAL 625P), and saved.
– 21 –
b) 525P mode (NTSC) 1080i 50 Hz 4:3, 16:9, 1080i 60 Hz 4:3, 16:9 . . . . Correcting point: Horizontal 8 x Vertical 7
(Arrow marks denote correcting point)
The first picture
GENERAL ADJUSTMENTS
Cursor (red)
(Blinking)
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.
Cursor color Red: Yellow
Green: Green
Blue: Blue
Display color shows the color that data change is possible.
The second picture
Data display
Screen center
During this period, the changed data is transferred from RAM
QH001 to E2PROM QH173 (1080i 50 Hz 16:9), QH174 (NTSC
525P, 1080i 60 Hz 16:9), QH175 (1080i 50 Hz 4:3, 1080i 60
Hz 16:9), 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.
The second picture
When entering from the first picture to the second picture, correcting wave of convergence is muted for one second.
– 22 –
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