Toshiba Projection Television TV GEN 03 User Manual

TOSHIBA AMERICA CONSUMER PRODUCTS, INC.  
NATIONAL SERVICE DIVISION  
1420-B TOSHIBA DR.  
LEBANON, TN 37087  
TECHNICAL TRAINING  
TV-GEN-03  
Subject:  
Product:  
Chassis:  
Digital Convergence Alignment  
PROJECTION TELEVISION, Rear CRT  
All Toshiba rear CRT projection televisions with digital convergence  
Model Year: All  
Models: All  
Prerequisites:  
None  
Purpose:  
Upon completion of this Training Module, the technician will be able to properly  
converge a Toshiba CRT-based rear projection television set. Using the correct digital  
convergence alignment procedures will enable the technician to identify symptoms  
requiring more in-depth troubleshooting.  
These skills will help improve servicing picture quality issues.  
Objectives:  
1.  
2.  
3.  
4.  
5.  
While performing a convergence alignment, specify when and when not to reload  
convergence backup data 100% of the time.  
Following a written procedure, correctly reload the convergence backup data  
from the DCU memory.  
Given the TV model number and picture size, identify the correct convergence  
overlay and grid 100% of the time.  
Following a written procedure, and using the correct overlay(s), align the  
convergence to factory specifications.  
While performing a convergence alignment, identify visual symptoms which  
indicate further troubleshooting is required, at least 80% of the time.  
Product Specific Service Manuals:  
This training is designed as an aid to the technician in servicing Toshiba products. It is not a  
replacement for the appropriate service manual(s). Toshiba service manuals contain product and  
model specific information and must be consulted prior to servicing any product.  
Product Safety Precautions:  
Product Safety Precautions are described in the Toshiba service manual(s) for products and models  
covered in this training. All safety precautions and checks must be complied with before returning any  
product to the customer. Servicers who defeat safety features or fail to perform safety checks may be  
liable for any resulting damages and may expose themselves and others to possible injury.  
2002 Toshiba America Consumer Products, Inc.  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
When using an overlay kit, it is important to know the type of unit it is designed for use  
with and the kit part number. The availability and part numbers of the overlay kits are  
subject to change as screen sizes are added or discontinued. Table 1 details the  
currently available overlay kit part numbers.  
Part  
Screen Aspect Picture Model  
Number  
Size  
40”  
42”  
43”  
48”  
50”  
50”  
53”  
55”  
56”  
57”  
61”  
65”  
71”  
Ratio  
16:9  
16:9  
4:3  
4:3  
4:3  
16:9  
4:3  
4:3  
16:9  
16:9  
4:3  
16:9  
4:3  
Size  
All  
Full  
All  
N/A  
All  
Full  
All  
All  
All  
Full  
All  
Year  
All  
2002+  
All  
All  
All  
2002+  
2002+  
All  
PSOL40X1  
PSOL42W1  
PSOL43X1  
PSOL4801  
PSOL50X1  
PSOL50W1  
PSOL53X1  
PSOL55X1  
PSOL56X1  
PSOL57W1  
PSOL61X1  
PSOL65X1  
PSOL7101  
All  
2002+  
All  
All  
N/A  
All  
All  
Table 1  
Each kit part number begins with the acronym PSOL, meaning Protective Screen Over  
Lay. Following the acronym are a series of alpha-numeric characters identifying the  
screen size and intended unit type. In Example 1, “40” identifies the kit for use with a 40  
inch screen size. “X1” indicates the kit contains all grids for any unit in that screen size.  
Example 1: PSOL40X1  
In some cases there are models with different aspect ratios within a screen size  
category. In such cases, the letter “W” in the kit part number indicates use with wide  
screen (16:9 aspect ratio) units. See Example 2 for details:  
Example 2  
PSOL50X1 is used with any 50 inch unit with a 4:3 aspect ratio screen.  
PSOL50W1 is used with any 50 inch unit with a 16:9 aspect ratio screen.  
Readme: The overlay dimensions are contained in the appropriate unit Service  
Manual, as shown in Figure 1. If a particular overlay kit is not available, or there  
is an urgent need for a complete convergence alignment before the kit can be  
delivered, strings and low-tack tape can be used to achieve the desired results.  
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Digital Convergence Alignment  
Figure 1  
And then… Accessing Service Mode:  
Once the correct overlay is placed on the screen, the unit must be put into Service  
Mode before any alignment adjustments are made. There are currently two methods of  
Service Mode entry, dependant upon the model and type of set. The methods are  
described as follows:  
1. All digital convergence equipped units built prior to 2001 and all interlaced  
scan units:  
a. With the unit powered “ON”, press and release the MUTE key on the  
remote control.  
b. Press the MUTE key a second time and hold.  
c. While holding the MUTE key, press the MENU key on the front panel.  
A pale blue “S” will appear in the upper right corner of the screen, as  
shown in Figure 2.  
d. Press the MENU key on the front panel a second time. RCUT will  
appear in the upper left corner of the screen.  
Figure 2  
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Readme: RCUT is a data address in the system EEPROM. The hexadecimal  
data contained in the address will be shown just below it, as shown in Figure 3.  
Figure 3  
2. All progressive scan units built from 2001 forward:  
a. With the unit powered “ON”, press and release the MUTE key on the  
remote control two times.  
b. Press the MUTE key a third time and hold.  
c. While holding the MUTE key, press the MENU key on the front panel.  
A pale blue “S” will appear in the upper right corner of the screen.  
d. Press the MENU key on the front panel a second time. RCUT will  
appear in the upper left corner of the screen.  
Readme: Important parameters of the set can be accessed and adjusted from  
Service Mode. Use caution whenever working in this area.  
The rubber meets the road - Convergence Alignment:  
Readme: Always allow the set to warm up for at least 15 minutes before making  
any adjustments.  
Convergence alignment instructions vary according to the unit type. The instructions  
assume a worst-case scenario, such as replacing all three CRTs or the digital  
convergence board, and the use of an overlay kit. All versions of the instructions are  
included as Appendices A through C of this document.  
Readme: If the set requires only minor convergence adjustments, enter the  
procedure where you feel it is necessary.  
1. Optical and electrical focus  
a. Remove or raise the screen to gain access to the CRTs.  
b. Reverse the lenses if necessary.  
c. Enter the convergence alignment service mode.  
d. Optically and electrically focus each CRT.  
2. Mechanical tilt  
a. Check each CRTs tilt.  
b. Adjust if necessary.  
c. Store the data.  
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Digital Convergence Alignment  
3. User convergence and magnetic centering  
a. Disconnect any input to Video 1.  
b. Enter the user convergence area.  
c. Vertically and horizontally center all 3 colors in all adjustable areas.  
d. Exit the user convergence area.  
e. Enter the convergence alignment service mode.  
f. Mechanically center all 3 colors.  
i. Stretch 2 pieces of string diagonally across the screen  
ii. Rotate the centering rings on each CRTs neck  
g. Lock the centering rings with adhesive.  
h. Exit the service mode.  
4. Electrical centering  
a. Use a signal generator.  
i. Crosshatch pattern  
b. Enter service mode.  
c. Adjust HPOS to center horizontally.  
d. Adjust VPOS to center vertically.  
5. Green geometry  
a. Enter the convergence alignment service mode.  
b. Secure the appropriate overlay to the screen.  
c. Adjust the green geometry to match the overlay.  
i. Start in the center of the screen  
ii. Work clockwise around the screen  
6. Red convergence  
a. Align to green.  
7. Blue convergence  
a. Align to green.  
8. HD convergence  
a. Progressive scan 4:3 units only.  
b. Component video signal to HD 1 input.  
c. 1080i picture on or HD image shape compressed.  
9. White balance  
a. Set white balance according to the appropriate Service Manual.  
b. Check picture quality using a live video signal.  
10.Width, height, and vertical linearity  
a. Adjust if the memory IC (QA02) has been replaced.  
b. Adjust if the crosshatch pattern is not reasonably close to the overlay  
pattern.  
Readme: The convergence alignment may not be complete at this point.  
Depending on the year of production and the type of unit being adjusted, there  
could be several different picture size modes that require adjustment.  
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Digital Convergence Alignment  
End of the line? Specifications  
Once all conceivable picture size modes have been aligned, verify the convergence  
meets factory specifications. The specifications listed in Table 2 reflect the maximum  
allowable misconvergence, in any direction, referencing either red or blue to green.  
Screen  
Size  
40  
Zone  
E
A
B
C
D
F
G
H
J
0.5mm 3.5mm 2.5mm 3.5mm 2mm  
0.5mm 3.5mm 2.5mm 3.5mm 2mm  
0.5mm 3.5mm 2.5mm 3.5mm 2.5mm 3.5mm 2.5mm 3.5mm 2.5mm  
3.5mm 2.5mm 3.5mm 2mm  
3.5mm 2.5mm 3.5mm 2mm  
42  
43  
48  
0.5mm 4mm  
3mm  
3mm  
4mm  
4mm  
3mm  
3mm  
4mm  
4mm  
3mm  
3mm  
4mm  
4mm  
3mm  
3mm  
50 (4:3) 0.5mm 4mm  
50(16:9) 0.5mm 3.8mm 2.7mm 3.8mm 2.3mm 3.8mm 2.7mm 3.8mm 2.3mm  
53  
55  
56  
57  
61  
65  
71  
0.5mm 4.5mm 3.2mm 4.5mm 3.2mm 4.5mm 3.2mm 4.5mm 3.2mm  
0.5mm 4.5mm 3.2mm 4.5mm 3.2mm 4.5mm 3.2mm 4.5mm 3.2mm  
0.5mm 4.5mm 3mm  
0.5mm 4.5mm 3mm  
4.5mm 2.5mm 4.5mm 3mm  
4.5mm 2.5mm 4.5mm 3mm  
4.5mm 2.5mm  
4.5mm 2.5mm  
0.5mm 5mm  
0.5mm 5mm  
0.5mm 5mm  
3.5mm 5mm  
3.5mm 5mm  
3.5mm 5mm  
3mm  
3mm  
3mm  
5mm  
5mm  
5mm  
3.5mm 5mm  
3.5mm 5mm  
3.5mm 5mm  
3mm  
3mm  
3mm  
Table 2  
Zones A through J are the areas of the screen referenced by the specifications. The  
zones are illustrated in Figure 4.  
H Q J K B  
G P A L C  
F N E M D  
Figure 4  
If the convergence cannot be aligned to factory specifications, further troubleshooting is  
required.  
Don’t Worry:  
Beginning with the 2002 production year, HD Compatible units include a service feature  
that allows a qualified technician to restore factory convergence data from a back-up  
memory location.  
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Digital Convergence Alignment  
Readme: Backup data should be loaded only if corruption of the original data  
is suspected or if the set is severely misconverged. Minor misconvergence  
issues should be corrected by performing the appropriate alignment procedure.  
To load back up data:  
1. Enter Service Mode as described in the appropriate Service Manual.  
2. Enter convergence alignment mode by pressing the “7” key on the remote.  
3. Display vertical stripes by pressing the “9” key on the remote.  
4. Load the backup by pressing the “1” key on the remote.  
a. The following message will appear on screen for:  
ENTER: TO LOAD BACKUP DATA  
EXIT: TO EXIT  
5. Press the “ENTER” key on the remote, as shown in Figure 5, to load the backup  
data.  
a. The displayed net pattern will misconverge briefly, then return to a normal  
state.  
Figure 5  
6. Following the alignment procedure in the service manual, make any necessary  
convergence adjustments.  
7. Write the new data to convergence memory by pressing the “7” key on the  
remote one time.  
8. Press the “Touch Focus” key on the front panel of the unit.  
a. The Touch Focus pattern will scroll across the screen two times. Once  
quickly, then slowly.  
9. “CALIBRATION FINISHED” will display on screen and the unit will exit to service  
mode.  
a. The new convergence data is saved to memory and new backup data is  
created.  
10.Power the unit off to exit service mode.  
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Digital Convergence Alignment  
Readme: Do not attempt to load backup data if the digital convergence PCB has  
been replaced. Backup data in the new PCB memory is not created until  
convergence has been adjusted and the CALIBRATION procedure has been  
completed.  
Something to think about:  
It is important to know when a convergence alignment will not correct the unit problem.  
If after following the correct procedure, the convergence cannot be aligned to factory  
specifications, further troubleshooting is required. Table 3 lists a few of the many  
possible symptoms.  
Repeated Touch Focus errors  
Intermittent loss of convergence  
Repeated convergence drift of any color  
Selected color will not adjust in either direction  
Convergence crosshatch pattern will not display  
Convergence crosshatch pattern is severely distorted  
Touch Focus pattern is not displayed  
Touch Focus pattern is severely distorted  
Back up data will not load  
Cannot enter Service Mode  
Data cannot be saved after alignment  
Table 3  
Points to remember:  
Familiarity and practice help the technician develop confidence in performing a digital  
convergence alignment or determining the need for further troubleshooting. Having the  
knowledge and necessary tools available are an important first step in the process of  
gaining experience. While taking this first step, it is best to follow the alignment  
instructions carefully and exactly. Back up data, if available, is a useful tool if problems  
occur. It can provide a good starting point in certain cases, but it should not be viewed  
as a “cure-all” for convergence problems. In most cases, only minor adjustments will be  
necessary. Focus and centering adjustments will not be needed and the procedure can  
begin in the GEOMETRY stage. Minor adjustments made in this way do not require  
the use of back up data or an overlay kit. Simply make the needed adjustments, save  
the new data accordingly, exit the service mode, and you’re outta there!  
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Digital Convergence Alignment  
Appendix A  
Interlaced Scan Units with 4:3 Aspect Ratio  
Section 1: OPTICAL & ELECTRICAL FOCUS  
1. Follow the appropriate disassembly instructions to gain access to the CRTs.  
2. If the wing nuts on the lenses are pointed toward the screen, reverse the lenses  
on each tube so the wing nuts are facing the back of the set. Leave the lenses in  
this position after servicing. Put the screen assembly back on.  
3. From the Service Mode press the 7 key on the remote control to display the  
convergence crosshatch pattern.  
4. Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off  
the blue tube.  
5. Position a mirror for viewing the screen from the rear of the set. From the rear of  
the set, loosen the wing nut on the green lens, and adjust the lens for the best  
focus in the center area of the screen.  
6. From the front of the set, adjust the electrical focus control for best focus in the  
center of the screen.  
7. Repeat the optical focus, and then tighten the wing nut.  
8. Repeat the electrical focus.  
9. Push the 100 key to turn on the red tube, and the 0 key to turn off the green tube.  
10. Adjust the red optical and electrical focus in the same manner.  
11. Push the CH RTN/ENT key to turn on the blue tube, and the 100 key to turn off  
the red tube.  
12. Adjust the blue optical and electrical focus in the same manner. Electrically  
defocus the blue slightly, to maintain uniform brightness.  
Section 2: MECHANICAL TILT ADJUSTMENT  
1. With the set still in convergence mode, and the convergence overlay on the  
screen, check each CRT’s tilt. If a CRT’s pattern is tilted, loosen the appropriate  
yoke with a non-magnetic screwdriver. Rotate the yoke until the pattern is  
aligned vertically and horizontally. Re-tighten the yoke.  
2. Press the 7 key on the remote to store the convergence data.  
3. After the data is stored, press the 7 key on the remote again to exit the  
convergence crosshatch pattern.  
4. The unit will return to service mode and display a normal picture with the letter  
“S” in the upper right corner.  
5. Power the unit OFF to exit service mode.  
Section 3: USER CONVERGENCE AND MAGNETIC CENTERING ADJUSTMENTS  
1. Disconnect any source at the Video 1 input.  
2. Turn the power on.  
3. Enter the user convergence screen through the customer menu.  
4. Move the red vertical cross hair as far as it will go to the right. Note the location.  
Move the red vertical cross hair as far as it will go to the left. Note that location.  
Set the red vertical cross hair to the center of the two extremes.  
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Appendix A  
5. Move the red horizontal cross hair as far as it will go toward the top of the screen.  
Note the location. Move the red horizontal cross hair as far as it will go toward the  
bottom of the screen. Note that location. Set the red horizontal cross hair to the  
center of the two extremes.  
6. Repeat steps 4 and 5 for the blue cross hair.  
7. Repeat steps 4, 5, and 6 for all user convergence adjustment points.  
8. Exit the customer convergence screen.  
9. Enter the service adjustment mode.  
10.Enter the service convergence adjustment mode to display the crosshatch pattern.  
11.Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off the  
blue tube.  
12.Rotate the centering rings on the green CRT to center the green cross bar. If the  
rings won't turn, remove the locking glue with a small knife. Use the center cross  
hairs of the convergence overlay, or two pieces of string stretched diagonally  
across the screen to locate the center of the screen.  
13.Push the 100 key to turn on the red tube, and the CH RTN/ENT key to turn on the  
blue tube.  
14.Center the red and blue crossbars, using the green crossbars as a guide.  
15.Lock the centering rings with a pliable adhesive.  
16.Exit the service convergence adjustment mode as described in Section 2.  
Section 4: ELECTRICAL CENTERING  
1. Turn the power on.  
2. Using a signal generator, display a crosshatch pattern.  
3. Enter the service adjustment mode.  
4. Check the centering of the crosshatch pattern. Use the center cross hairs of the  
convergence overlay, or two pieces of string stretched diagonally across the  
screen, to locate the center.  
5. If the horizontal position is off, use the channel up or down key to select the HPOS  
register. Use the volume key to center the pattern.  
6. If the vertical position is off, use the channel up or down key to select the VPOS  
register. Use the volume key to center the pattern.  
7. Turn the power off to save all adjustments.  
Section 5: GREEN GEOMETRY  
1. Enter the service adjustment mode and then enter the convergence adjustment  
mode.  
2. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn off the blue  
tube.  
3. Place the convergence overlay on the screen and align the center cross hairs  
with the center of the screen.  
4. Use low tack drafting tape to secure the overlay to the screen. Make the overlay  
as flat as possible against the screen to reduce parallax errors.  
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Digital Convergence Alignment  
Appendix A  
Readme: If the microcomputer memory IC (QA02) has been replaced, or the  
crosshatch pattern is not reasonably close to the overlay pattern, make the  
adjustments in Section 9. (WID, HIT, & VLIN ADJUSTMENTS). Then proceed  
with step 5.  
5. Push the 3 key on the remote until the blinking cursor in the upper left corner of  
the screen is green.  
6. Move the blinking cursor to the right with the 6 key, then down with the 8 key,  
until it is one line to the right of screen center. The 4 key moves the cursor to the  
left, and the 2 key moves it up.  
7. Push the 5 key to lock the cursor in place.  
8. Use the 2, 6, 8, and 4 keys to align the TV’s convergence pattern to the overlay  
pattern.  
9. Push the 5 key to unlock the cursor.  
10. Move the cursor to the next location and repeat steps 7 and 8. Continue around  
the screen, clockwise, from the center to the edges. Repeat the entire procedure  
to make fine adjustments.  
Section 6: RED CONVERGENCE  
1. Remove the overlay and press the 100 key to turn on the red tube.  
2. Press the 3 key until the cursor turns red.  
3. Align the red convergence pattern to the green pattern, using the same  
procedure used to align the green convergence pattern to the overlay.  
Section 7: BLUE CONVERGENCE  
1. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn on the blue  
tube.  
2. Push the 3 key until the cursor turns blue.  
3. Align the blue convergence to the green pattern, using the same procedure used  
to align the green convergence pattern to the overlay.  
4. Push the 100 key to turn on the red tube and check the convergence with all  
three tubes on. The convergence pattern should be white with no red, green, or  
blue present. A slight blue halo may result from the defocused blue CRT.  
5. Exit the adjustment mode as described in Section 2.  
Section 8: WHITE BALANCE  
1. Turn the unit back on and check the white balance.  
2. Refer to the appropriate Service Manual and adjust the white balance as needed.  
3. Check the picture quality using a live video signal. If the picture quality is  
acceptable, put the unit back together. If the picture quality is not acceptable,  
recheck the convergence alignment.  
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Appendix A  
Section 9: WIDTH, HEIGHT, & VERTICAL LINEARITY ADJUSTMENTS  
Readme: See the notes in Section 5, before performing the following procedure.  
1. Exit the convergence adjustment mode as described in Section 2.  
2. Press the MENU button on the unit control panel to display the RCUT register.  
3. Use the channel up/ down keys to select the WID register.  
4. Use the volume keys to adjust the WID register until the vertical lines are close to  
those on the overlay.  
5. Use the channel up/ down keys to select the HIT register.  
6. Use the volume keys to adjust the HIT register until the horizontal lines are close  
to those on the overlay.  
7. Use the channel up/ down keys to select the VLIN register.  
8. Use the volume keys to adjust the VLIN register until the horizontal lines are  
close to those on the overlay.  
8. If needed, repeat both the HIT and VLIN adjustments for the best results.  
9. Push the 7 key to return to the convergence mode and continue with Section 5.  
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Appendix B  
4:3 Progressive Scan Units with Touch Focus  
Section 1: OPTICAL & ELECTRICAL FOCUS  
1. Follow the appropriate disassembly instructions to gain access to the CRTs.  
2. If the wing nuts on the lenses are pointed toward the screen, reverse the lenses  
on each tube so the wing nuts are facing the back of the set. Leave the lenses in  
this position after servicing. Put the screen assembly back on.  
Readme: The wing nuts can be accessed from the front of units with a screen  
size of 50 inches or larger. The bezel assembly can be raised approximately 6  
inches and locked into place using an extra set of brackets.  
3. From the service mode press the 7 key on the remote control to display the  
convergence crosshatch pattern.  
4. Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off  
the blue tube.  
5. Position a mirror for viewing the screen from the rear of the set. From the rear of  
the set, loosen the wing nut on the green lens, and adjust the lens for the best  
focus in the center area of the screen.  
Readme: No mirror is needed for units that provide front access.  
6. From the front of the set, adjust the electrical focus control for best focus in the  
center of the screen.  
7. Repeat the optical focus, and then tighten the wing nut.  
8. Repeat the electrical focus.  
9. Push the 100 key to turn on the red tube, and the 0 key to turn off the green tube.  
10. Adjust the red optical and electrical focus in the same manner.  
11. Push the CH RTN/ENT key to turn on the blue tube, and the 100 key to turn off  
the red tube.  
12. Adjust the blue optical and electrical focus in the same manner. Electrically  
defocus the blue slightly, to maintain uniform brightness.  
13. If the bezel assembly has been raised to allow front access, lower it into normal  
position.  
Section 2: MECHANICAL TILT ADJUSTMENT  
1. With the set still in convergence mode, and the convergence overlay on the  
screen, check each CRT’s tilt. If a CRT’s pattern is tilted loosen the appropriate  
yoke with a non-magnetic screwdriver. Rotate the yoke until the pattern is  
aligned vertically and horizontally. Re-tighten the yoke.  
2. Press the 7 key on the remote to store the convergence data.  
3. After the data is stored, “Please Press Touch Focus” will appear on screen.  
Press the “Touch Focus” button on the unit control panel.  
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Appendix B  
4. “Finish” will appear on screen when the “Touch Focus” procedure is complete.  
The unit will return to service mode and display a normal picture with the letter  
“S” in the upper right corner.  
Readme: Beginning with units in 2002, Touch Focus will run twice. The first  
scan will be at a faster rate than the second scan. “CALIBRATION FINISHED”  
will appear on the screen before the unit returns to the Service Mode.  
5. Power the unit OFF to exit service mode.  
Section 3: USER CONVERGENCE AND MAGNETIC CENTERING ADJUSTMENTS  
1. Disconnect any source at the Video 1 input.  
2. Turn the power on.  
3. Enter the user convergence screen through the customer menu.  
4. Move the red vertical cross hair as far as it will go to the right. Note the location.  
Move the red vertical cross hair as far as it will go to the left. Note that location.  
Set the red vertical cross hair to the center of the two extremes.  
5. Move the red horizontal cross hair as far as it will go toward the top of the screen.  
Note the location. Move the red horizontal cross hair as far as it will go toward the  
bottom of the screen. Note that location. Set the red horizontal cross hair to the  
center of the two extremes.  
6. Repeat steps 4 and 5 for the blue cross hair.  
7. Repeat steps 4, 5, and 6 for all user convergence adjustment points.  
8. Exit the customer convergence screen.  
9. Enter the service adjustment mode.  
10.Enter the service convergence adjustment mode to display the crosshatch pattern.  
11.Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off the  
blue tube.  
12.Rotate the centering rings on the green CRT to center the green cross bar. If the  
rings won't turn, remove the locking glue with a small knife. Use the center cross  
hairs of the convergence overlay, or two pieces of string stretched diagonally  
across the screen to locate the center of the screen.  
13.Push the 100 key to turn on the red tube, and the CH RTN/ENT key to turn on the  
blue tube.  
14.Center the red and blue crossbars, using the green crossbars as a guide.  
15.Lock the centering rings with a pliable adhesive.  
16.Exit the service convergence adjustment mode as described in Section 2.  
Section 4: ELECTRICAL CENTERING  
1. Turn the power on.  
2. Using a signal generator, display a crosshatch pattern.  
3. Enter the service adjustment mode.  
Module No. TV-GEN-03  
Page 14 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix B  
4. Check the centering of the crosshatch pattern. Use the center cross hairs of the  
convergence overlay, or two pieces of string stretched diagonally across the  
screen, to locate the center.  
5. If the horizontal position is off, use the channel up or down key to select the HPOS  
register. Use the volume key to center the pattern.  
6. If the vertical position is off, use the channel up or down key to select the VPOS  
register. Use the volume key to center the pattern.  
7. Turn the power off to save all adjustments.  
Section 5: GREEN GEOMETRY  
1. Enter the service adjustment mode and then enter the convergence adjustment  
mode.  
2. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn off the blue  
tube.  
3. Place the convergence overlay on the screen and align the center cross hairs with  
the center of the screen.  
4. Use low tack drafting tape to secure the overlay to the screen. Make the overlay  
as flat as possible against the screen to reduce parallax errors.  
Readme: If the microcomputer memory IC (QA02) has been replaced, or the  
crosshatch pattern is not reasonably close to the overlay pattern, make the  
adjustments in Section 9. (WID, HIT, & VLIN ADJUSTMENTS). Then proceed  
with step 5.  
5. Push the 3 key on the remote until the blinking cursor in the upper left corner of  
the screen is green.  
6. Move the blinking cursor to the right with the 6 key, then down with the 8 key, until  
it is one line to the right of screen center. The 4 key moves the cursor to the left,  
and the 2 key moves it up.  
7. Push the 5 key to lock the cursor in place.  
8. Use the 2, 6, 8, and 4 keys to align the TV’s convergence pattern to the overlay  
pattern.  
9. Push the 5 key to unlock the cursor.  
10.Move the cursor to the next location and repeat steps 7 and 8. Continue around  
the screen, clockwise, from the center to the edges. Repeat the entire procedure  
to make fine adjustments.  
Section 6: RED CONVERGENCE  
1. Remove the overlay and press the 100 key to turn on the red tube.  
2. Press the 3 key until the cursor turns red.  
3. Align the red convergence pattern to the green pattern, using the same  
procedure used to align the green convergence pattern to the overlay.  
Module No. TV-GEN-03  
Page 15 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix B  
Section 7: BLUE CONVERGENCE  
1. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn on the blue  
tube.  
2. Push the 3 key until the cursor turns blue.  
3. Align the blue convergence to the green pattern, using the same procedure used  
to align the green convergence pattern to the overlay.  
4. Push the 100 key to turn on the red tube and check the convergence with all  
three tubes on. The convergence pattern should be white with no red, green, or  
blue present. A slight blue halo may result from the defocused blue CRT.  
5. Exit the adjustment mode as described in Section 2.  
Section 8: HD CONVERGENCE  
1. Turn the unit ON.  
2. Input a component video signal to the HD 1 component video jacks.  
3. Press the TV/VIDEO button on the remote control until HD 1 input is selected.  
4. Select HD 1 Image Shape Compressed from the User Theater Menu. The video  
displayed will be compressed with black panels above and below the image.  
5. Repeat Sections 5, 6, and 7.  
Section 9: WHITE BALANCE  
1. Turn the set back on and check the white balance.  
2. Refer to the appropriate Service Manual and adjust the white balance as needed.  
3. Check the overall picture quality using a live video signal. If the picture quality is  
acceptable, put the unit back together. If the picture quality is not acceptable,  
recheck the convergence alignment.  
Section 10: WIDTH, HEIGHT, & VERTICAL LINEARITY ADJUSTMENTS  
Readme: See the notes in Section 5, before performing the following procedure.  
1. Exit the convergence adjustment mode as described in Section 2.  
2. Press the MENU button on the unit control panel to display the RCUT register.  
3. Use the channel up/ down keys to select the WID register.  
4. Use the volume keys to adjust the WID register until the vertical lines are close to  
those on the overlay.  
5. Use the channel up/ down keys to select the HIT register.  
6. Use the volume keys to adjust the HIT register until the horizontal lines are close  
to those on the overlay.  
7. Use the channel up/ down keys to select the VLIN register.  
8. Use the volume keys to adjust the VLIN register until the horizontal lines are  
close to those on the overlay.  
9. If needed, repeat both the HIT and VLIN adjustments for the best results.  
10. Push the 7 key to return to the convergence mode and continue with Section 5.  
Module No. TV-GEN-03  
Page 16 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix C  
16:9 Progressive Scan Units with Touch Focus  
Section 1: OPTICAL & ELECTRICAL FOCUS  
1. Follow the appropriate disassembly instructions to gain access to the CRTs.  
2. If the wing nuts on the lenses are pointed toward the screen, reverse the lenses  
on each tube so the wing nuts are facing the back of the set. Leave the lenses in  
this position after servicing. Put the screen assembly back on.  
Readme: The wing nuts can be accessed from the front of units with a screen  
size of 50 inches or larger. The bezel assembly can be raised approximately 6  
inches and locked into place using an extra set of brackets.  
3. From the service mode press the 7 key on the remote control to display the  
convergence crosshatch pattern.  
4. Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off  
the blue tube.  
5. Position a mirror for viewing the screen from the rear of the set. From the rear of  
the set, loosen the wing nut on the green lens, and adjust the lens for the best  
focus in the center area of the screen.  
Readme: No mirror is needed for units that provide front access.  
6. From the front of the set, adjust the electrical focus control for best focus in the  
center of the screen.  
7. Repeat the optical focus, and then tighten the wing nut.  
8. Repeat the electrical focus.  
9. Push the 100 key to turn on the red tube, and the 0 key to turn off the green tube.  
10. Adjust the red optical and electrical focus in the same manner.  
11. Push the CH RTN/ENT key to turn on the blue tube, and the 100 key to turn off  
the red tube.  
12. Adjust the blue optical and electrical focus in the same manner. Electrically  
defocus the blue slightly, to maintain uniform brightness.  
13. If the bezel assembly has been raised to allow front access, lower it into normal  
position.  
Section 2: MECHANICAL TILT ADJUSTMENT  
1. With the set still in convergence mode, and the convergence overlay on the  
screen, check each CRT’s tilt. If a CRT’s pattern is tilted loosen the appropriate  
yoke with a non-magnetic screwdriver. Rotate the yoke until the pattern is  
aligned vertically and horizontally. Re-tighten the yoke.  
2. Press the 7 key on the remote to store the convergence data.  
3. After the data is stored, “Please Press Touch Focus” will appear on screen.  
Press the “Touch Focus” button on the unit control panel.  
Module No. TV-GEN-03  
Page 17 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix C  
4. “Finish” will appear on screen when the “Touch Focus” procedure is complete.  
The unit will return to service mode and display a normal picture with the letter  
“S” in the upper right corner.  
Readme: Beginning with units in 2002, Touch Focus will run twice. The first  
scan will be at a faster rate than the second scan. “CALIBRATION FINISHED”  
will appear on the screen before the unit returns to the Service Mode.  
5. Power the unit OFF to exit service mode.  
Section 3: USER CONVERGENCE AND MAGNETIC CENTERING ADJUSTMENTS  
1. Disconnect any source at the Video 1 input.  
2. Turn the power on.  
3. Enter the user convergence screen through the customer menu.  
4. Move the red vertical cross hair as far as it will go to the right. Note the location.  
Move the red vertical cross hair as far as it will go to the left. Note that location.  
Set the red vertical cross hair to the center of the two extremes.  
5. Move the red horizontal cross hair as far as it will go toward the top of the screen.  
Note the location. Move the red horizontal cross hair as far as it will go toward the  
bottom of the screen. Note that location. Set the red horizontal cross hair to the  
center of the two extremes.  
6. Repeat steps 4 and 5 for the blue cross hair.  
7. Repeat steps 4, 5, and 6 for all user convergence adjustment points.  
8. Exit the customer convergence screen.  
9. Enter the service adjustment mode.  
10.Enter the service convergence adjustment mode to display the crosshatch pattern.  
11.Push the 100 key to turn off the red tube, and the CH RTN/ENT key to turn off the  
blue tube.  
12.Rotate the centering rings on the green CRT to center the green cross bar. If the  
rings won't turn, remove the locking glue with a small knife. Use the center cross  
hairs of the convergence overlay, or two pieces of string stretched diagonally  
across the screen to locate the center of the screen.  
13.Push the 100 key to turn on the red tube, and the CH RTN/ENT key to turn on the  
blue tube.  
14.Center the red and blue crossbars, using the green crossbars as a guide.  
15.Lock the centering rings with a pliable adhesive.  
16.Exit the service convergence adjustment mode as described in Section 2.  
Section 4: ELECTRICAL CENTERING  
1. Turn the power on.  
2. Using a signal generator, display a crosshatch pattern.  
3. Enter the service adjustment mode.  
Module No. TV-GEN-03  
Page 18 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix C  
4. Check the centering of the crosshatch pattern. Use the center cross hairs of the  
convergence overlay, or two pieces of string stretched diagonally across the  
screen, to locate the center.  
5. If the horizontal position is off, use the channel up or down key to select the HPOS  
register. Use the volume key to center the pattern.  
6. If the vertical position is off, use the channel up or down key to select the VPOS  
register. Use the volume key to center the pattern.  
7. Turn the power off to save all adjustments.  
Section 5: GREEN GEOMETRY  
1. Enter the service adjustment mode and then enter the convergence adjustment  
mode.  
2. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn off the blue  
tube.  
3. Place the convergence overlay on the screen and align the center cross hairs with  
the center of the screen.  
4. Use low tack drafting tape to secure the overlay to the screen. Make the overlay  
as flat as possible against the screen to reduce parallax errors.  
Readme: If the microcomputer memory IC (QA02) has been replaced, or the  
crosshatch pattern is not reasonably close to the overlay pattern, make the  
adjustments in Section 9. (WID, HIT, & VLIN ADJUSTMENTS). Then proceed  
with step 5.  
5. Push the 3 key on the remote until the blinking cursor in the upper left corner of  
the screen is green.  
6. Move the blinking cursor to the right with the 6 key, then down with the 8 key, until  
it is one line to the right of screen center. The 4 key moves the cursor to the left,  
and the 2 key moves it up.  
7. Push the 5 key to lock the cursor in place.  
8. Use the 2, 6, 8, and 4 keys to align the TV’s convergence pattern to the overlay  
pattern.  
9. Push the 5 key to unlock the cursor.  
10.Move the cursor to the next location and repeat steps 7 and 8. Continue around  
the screen, clockwise, from the center to the edges. Repeat the entire procedure  
to make fine adjustments.  
Section 6: RED CONVERGENCE  
1. Remove the overlay and press the 100 key to turn on the red tube.  
2. Press the 3 key until the cursor turns red.  
3. Align the red convergence pattern to the green pattern, using the same  
procedure used to align the green convergence pattern to the overlay.  
Module No. TV-GEN-03  
Page 19 of 20  
 
TOSHIBA PJTV  
Digital Convergence Alignment  
Appendix C  
Section 7: BLUE CONVERGENCE  
1. Push the 100 key to turn off the red tube, and CH RTN/ENT to turn on the blue  
tube.  
2. Push the 3 key until the cursor turns blue.  
3. Align the blue convergence to the green pattern, using the same procedure used  
to align the green convergence pattern to the overlay.  
4. Push the 100 key to turn on the red tube and check the convergence with all  
three tubes on. The convergence pattern should be white with no red, green, or  
blue present. A slight blue halo may result from the defocused blue CRT.  
5. Exit the adjustment mode as described in Section 2.  
Section 9: WHITE BALANCE  
1. Turn the set back on and check the white balance.  
2. Refer to the appropriate Service Manual and adjust the white balance as needed.  
3. Check the overall picture quality using a live video signal. If the picture quality is  
acceptable, put the unit back together. If the picture quality is not acceptable,  
recheck the convergence alignment.  
Section 10: WIDTH, HEIGHT, & VERTICAL LINEARITY ADJUSTMENTS  
Readme: See the notes in Section 5, before performing the following procedure.  
1. Exit the convergence adjustment mode as described in Section 2.  
2. Press the MENU button on the unit control panel to display the RCUT register.  
3. Use the channel up/ down keys to select the WID register.  
4. Use the volume keys to adjust the WID register until the vertical lines are close to  
those on the overlay.  
5. Use the channel up/ down keys to select the HIT register.  
6. Use the volume keys to adjust the HIT register until the horizontal lines are close  
to those on the overlay.  
7. Use the channel up/ down keys to select the VLIN register.  
8. Use the volume keys to adjust the VLIN register until the horizontal lines are  
close to those on the overlay.  
9. If needed, repeat both the HIT and VLIN adjustments for the best results.  
11. Push the 7 key to return to the convergence mode and continue with Section 5.  
Module No. TV-GEN-03  
Page 20 of 20  
 

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