The set should be warmed up for at least 20 minutes prior to
making any Geometry or Convergence adjustments. A signal must be applied to the
set while performing Convergence or Geometry alignments. This is necessary to
provide the correct horizontal and vertical sync to the Convergence panel.
Failure to do so will result in an out of convergence picture when signal is
applied to the set. The Serviced Technician should sit at least 5 to 10 feet
from the front of the screen while doing Convergence. Ensure that you are eye
level with the area of the screen you are adjusting. When performing Digital
Convergence, the adjustments are
interactive. A change in one quadrant will affect adjacent
areas of the screen. Several passes through the Convergence sequence may be
necessary. When doing Convergence, it is advised to follow the sequence
pattern when going from on adjustment location to another. Pressing the Right
Cursor key will sequence the Icon through a pre-loaded sequence.
When the Convergence error is small, a touch up Convergence
will be all that is necessary. Do not adjust Green Geometry while in this mode.
A compete in-depth Convergence is required when the Small Signal Module (SSM)
or the Convergence Memory IC, has been replaced. If the SSB (Small Signal Board) or the Large Signal Board (LSB)
has been replaced, a complete in-depth Geometry should be completed before
Convergence is adjusted. The Geometry alignment should not be necessary if the
SSB or LSB have not been changed.
SCREEN TEMPLATES
When performing a complete in-depth Convergence alignment, a
Screen Template is necessary to obtain the correct Geometry. The correct
Templates are listed below:
43 INCH => ST4168
50 INCH => ST4169
55 INCH => ST4170
60 INCH => ST4171
64 INCH => ST4172
TOUCH-UP CONVERGENCE
Enter the Digital Convergence Mode (DCM) by entering
0-6-2-5-9-7-(Status or Index) on the Remote control. The following menu will
appear: Select an active channel or Aux
Input. A signal must be applied to the set when performing convergence. If any
Customer Adjustments need to be made, the Menu button can be used to toggle
between the Customer Menu and DCM. The MPOSD ADJUST is used to center the
Customer Convergence grid. A highlighted cross will appear along with the
Convergence alignment grid. The highlighted cross should be centered onto the
center of the Convergence grid. To
perform a Touch Up Convergence, highlight SELECTION and press the right cursor
button on the remote.
The following menu will appear:
Selections STORE, RESTORE FACTORY, and RESTORE DEFAULT are
not shown after selecting SELECTION.
Press the cursor down button on the Remote for these
selections to appear.
RESTORE FACTORY loads Convergence defaults from the Factory
Loaded section of the Convergence Memory IC.
RESTORE DEFAULT loads Convergence defaults from the sets
software.
PERFORMING TOUCH-UP CONVERGENCE
- Enter the Convergence Mode and select RED TO GREEN or BLUE TO GREEN. Do not select GREEN (Green Geometry) without placing a Template over the screen. To perform Green Geometry, refer to the complete in-depth Convergence.
- Use the Cursor buttons on the Remote to Navigate from one adjustment point to another. Press the Status or Index button on the Remote to select ADJUSTS. Use the cursor buttons on the Remote to adjust the Red to Green or Blue to Green. Press the Status or Index button again to navigate to the next adjustment location.
- After Convergence alignments are complete, press the Menu button on the Remote to return to the SELECTION menu.
- Highlight the STORE selection and press the right cursor key on the Remote to save changes.
- Use the GREEN TO RED or GREEN TO BLUE selections to perform convergence when the Green CRT has been replaced.
CENTERING THE SCREEN
- Make sure a signal is applied to the set.
- Enter the Convergence mode by entering 0-6-2-5-9-7-(Status or Index). Select an active channel or input. If the Customer settings need to be adjusted, pressing the Menu button will access the Customer menu.
- Place a Template over the screen.
- Select GREEN in the SELECTION menu.
- Place a jumper across connector 1005 on the SSM to defeat convergence drive.
- Using the centering rings on the Green CRT, center the convergence pattern onto the center point of the Convergence Template.
- Press the Menu button on the Remote to return to the SELECTION menu.
- Select RED TO GREEN in the menu.
- Center the Red pattern onto the Green pattern.
- Select BLUE TO GREEN in the SELECTION menu.
- Center the Blue pattern onto the Green pattern.
- Remove the Jumper on connector 1005.
GREEN GEOMETRY
- Make sure a signal is applied to the set.
- Enter the Convergence mode by entering 0-6-2-5-9-7-(Status or Index). Use the Menu button to toggle between DCM and Customer Mode. Select an active channel or input while in the Customer Mode.
- Place a Template over the Screen.
- Select GREEN in the SELECTION menu.
- The Icon will appear in the center of the screen. Press the Right Cursor key on the remote to move the Icon to the next adjustment location. At each location press the Status or Index button to enter the ADJUST mode. Using the Cursor keys, adjust the Icon onto the adjustment point on the template. It is recommended that the two outside vertical lines not be adjusted in the first two passes.
- Continue to follow the pattern and make corrections until the Convergence Crosshatch pattern matches the Template.
- Press the Menu button to return to the SELECTION menu.
- Use the Cursor down key to highlight the STORE selection.
- Press the Right cursor key to save the alignments.
- Remove the Template.
RED CONVERGENCE
- Select RED TO GREEN in the SELECTION menu.
- Adjust the Red crosshatch pattern onto the green pattern in the same manner that Green was adjusted to the Template.
- Save the alignments.
BLUE CONVERGENCE
- Select BLUE TO GREEN in the SELECTION menu.
- Adjust the Blue crosshatch pattern onto the green pattern in the same manner that Green was adjusted to the Template.
- Save the alignments.
COMPLETE IN-DEPTH GEOMETRY
To activate the Service Alignment Mode, enter
0-6-2-5-9-6-(Status or Index) using the Remote Control. Press Status or Index
toggle to the Customer menu. Select an active channel. Pressing the Status or
Index button will bring up the SAM mode. Apply a Crosshatch pattern to the set and select that input.
Defeat Convergence by shorting the two pins of connector 1005 on the SSM. Press the Cursor-down key on the remote and
select Geometry with the Right cursor key. Adjust the Screen Geometry as necessary.
DEFAULT LEVELS
VER.AMPL => 30
VER.SLOPE => 34
SERV.BLK => OFF
HOR.SHIFT => 32
HOR.BOW => 20
HOR.PARALLEL => 31
EW.WIDTH => 22
EW.PARA => 21
EW.TRAP =>19
EW.UCORN => 6
EW.LCORN => 0
H60.WIDTH => 2
H60.PARA => 0
H60.SHIFT => 7
V60.AMPL => 0
VER.SCOR => 18
VER.SHIFT => 35
VER.ZOOM => 32
VER.SCROLL => 32
To save changes, use the Menu button on the Remote to back
out to the main menu. Then turn the set OFF using the power button on the
Remote or the front of the set. This will save any changes made.
GEOMETRY ADJUSTMENT; INITIAL SET-UP
- Press the PICTURE button on the remote control repeatedly to change the Smart Picture setting to "NATURAL."
- Enter SAM. {To activate the Service Alignment Mode, [SAM] enter 0-6-2-5-9-6-(Status or Index) using the Remote Control.}
- Press the Menu Down button to select the GEOMETRY menu item.
- Press the Cursor Right button to enter the GEOMETRY sub-menu.
- Press the Cursor Down button to highlight the VER-SCOR submenu item.
- Use the Cursor Right buttons to adjust VER-SCOR.
- VER-SCOR aligns the vertical linearity, so that the vertical intervals of the grid-patterns are the same over the entire height of the screen.
EXTRA ALIGNMENTS FOR 4:3 SETS
- Set Service blanking on => SERV-BLK ON
- Adjust Vertical slope => VER-SLOPExx
- Set Service blanking OFF => SERV-BLKOFF
- Adjust Vertical amplitude => VER-AMPLxx
- Adjust Vertical shift => VER-SHIFTxx
- Adjust Horizontal shift => HOR-SHIFTxx
- Adjust Vertical height => VER-ZOOMxx
- Adjust Vertical posistion => VER-SCROLLxx
- Adjust Vertical linearity => VER-SCORxx
- Not used => H60-SHIFTxx
- Not used => V60-AMPLxx
- Adjust Horizontal width => EW-WIDTHxx
- Adjust Parabola => EW-PARAxx
- Adjust Up corner => EW-UCORNxx
- Adjust low corner => EW-LCORNxx
- Adjust Trapezium => EW-TRAPxx
- Adjust Horizontal parallelogram => HOR-PARALLELxx
- Adjust Horizontal bow => HOR-BOWxx
