Text preview for : 2-Alignment_Procedures.pdf part of Mitsubishi VS-50805, WT-60805, WS-55905, WS-65905, WS-73905, WS-55805, WT-46805 Mitsubishi VS-50805, WT-60805, WS-55905, WS-65905, WS-73905, WS-55805, WT-46805 (Chassis V16 N W) (Training Manual + Schematic)
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Chapter 2 Alignment Procedures
Performing electrical alignments on the V16 chassis is also similar to previous Mitsubishi projection televisions. The major difference between aligning a standard NTSC model and the HDTV capable V16 is that it is necessary to perform many alignments in each major video format, the Standard (NTSC or SD) mode, the High Definition (HD) mode and the DVD 480p (480p) mode. (Note: Adjustments in the 480p mode are limited to setting fixed data values.) This chapter will familiarize the service technician with: Accessing the Option Menu and performing an Initial Setup. Accessing the Circuit Adjustment Mode, selecting Adjustment Functions and Adjustment Items, changing data values and saving new data values. Accessing the Convergence Adjustment Mode, selecting Adjustment Functions and Adjustment Items, changing data values and saving new data values. Raster Geometry and Convergence alignment procedures.
When performing alignments, please refer to the Service Manual for the exact procedure. Since Raster Geometry and Convergence alignments are performed most frequently, the procedures from the Service Manual are included in this manual as well.
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1. Initial Setup
A. Option Menu Setup
Follow the steps below for the initial set-up: 1. Select the "MENU" display by pressing the "MENU" button once. 2. Press the number buttons "1", "2", "7", "0" in sequence to select the "OPTION MENU" display. 3. Press the "ADJUST" button to select "INITIAL." 4. Press "ENTER." NOTE: At this time channel 3 is automatically selected. CAUTION: Do not select E2 RESET and press QV (RCL). Doing so will require a full item by item alignment of all data values listed in the "Service Adjustment" and Convergence Miscellaneouts modes.
CAUTION:
Do not select Convergence Reset and press ENTER. This resets all data in the Coarse and Fine Convergence modes.
OPTION MENU Initial E2RESET Direct Key Mode :OFF DTV Port :AUTO DTV Signal Strength Power restore :OFF V-chip supported :ON Convergence reset DTV Diagnostics DTV Reset DTV E2 Reset Free Run Factory Option Menu
B. Default Settings
SETUP Memorize Channels ANT A Language English CLOCK Clock Setting Auto Time Zone Eastern Daylight Savings Applies Clock Time N/A Set Day N/A AV CONNECTION AV Network OFF External Audio System NO AV Receiver at Input 1 None Audio Output Variable INPUT ASSIGNMENT Antenna A On Antenna B On DTV YPrPb Input 1 Input-1 Input 2 Input-2 Input 3 Input-3 Input 4 Input-4 CAPTIONS Closed Captions With Mute CC Background Gray DTV Channel Guide N/A
MAIN MENU DEFAULT SETTINGS
Input Channel Memory Name SQV CHANNEL EDIT ANTA 3 Deleted ---OFF
TIMER Timer Off Set Time 12:00PM Set Day Everyday Input ANT A Channel 3 V-CHIP PARENT LOCK TV Rating Off FV-Fantasy Violence N/A D-Sexual Dialog N/A L- Adult Language N/A S-Sexual Situation N/A V-Violence N/A Program not Rated N/A Movie Rating Off V-CHIP HOURS/LOCK BY TIME V-Chip Start Time N/A V-Chip Stop Time N/A Lock by Time Off Lock Time N/A Unlock Time N/A
ADVANCED FEATURES SD Video Format 480P Video Mute On Black Level Expansion On AUDIO/VIDEO SETTINGS Audio Volume 30% Bass 50% Treble 50% Balance 50% Listen to Stereo PIP Audio Out (V16W) Stereo Level Sound Off Video Iris OFF Contrast 100% Brightness 50% Auto Picture OFF Sharpness 50% Color 50% Tint 50% Color Temp. High Video Noise Normal PIP/POP Source Ant A Ch 3 PIP Position (V16N) Lower Rght POP Position (V16W) Rght Half Format (V16W) H-LIN EXP
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A/V RESET DEFAULT SETTINGS A/V Memory ANT-A/B DTV INPUT 1/2/3/4 DVD Iris OFF Contrast Max. Max. Max. Max. Brightness Center Center Center Center Auto Picture OFF Sharpness Center Center Center Center Color Center Center Center Center Tint Center Center Center Center Color Temp. High High High High Video Noise Normal Normal Normal Normal Bass Center Center Center Center Treble Center Center Center Center Balance Center Surround OFF OFF OFF OFF Listen To Stereo PIP Audio Out Stereo (V16W only) Level Sound OFF OFF OFF OFF
C. A/V Memory
Each of the 7 inputs has its own Audio/Video Memory. A change in an A/V setting at a specific input is stored in memory for that specific input. A/V Reset 1. The front panel AV Reset button intializes all A/V Memories. 2. The AV Reset in the users menu initializes only the selected inputs A/V Memory.
2. Circuit Adjustment Mode
Most of the adjustments can only be performed using the remote hand unit. Many of the adjustments must be performed in both the NTSC and HD modes. Video/Color adjustments must be performed in the NTSC and HD modes, and data must be preset in the 480P (DVD) mode.
A. Activating the Circuit Adjustment Mode
The current signal source determines if the activated Adjustment Mode is NTSC or HD.
1. Select the signal source (NTSC or HD). 2. Press the "MENU" button on a remote hand unit. 3. Press the number buttons "1", "2", "5", "7" in sequence. The screen will change to the Adjustment Mode. Note: Repeat steps 1 and 2 if the circuit adjustment mode does not appear on screen
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B. Selection of adjustment Functions and Adjustment Items
To select an adjustment item in the circuit adjustment mode, first select the adjustment function that includes the specific adjustment item to be selected. Then select the adjustment item. Refer to the following pages for the listing of adjustment functions and adjustment items. 1. Press the "AUDIO" button on a remote hand unit to select an adjustment function. Each time the button is pressed, the Function changes in the following sequence:
2. Press the VIDEO button to select a specific Adjustment Item. The Item number increases each time the VIDEO button is pressed.
C. Changing Data
After selecting an adjustment Item, use the ADJUST UP/DOWNbutton to change data. Press ADJUST DOWN to decrease the data value. Press ADJUST UP to increase the data value.
D. Saving Adjustment Data
Press ENTER to save adjustment data in memory. The character display turns red for approximately one second in this step. Note: If the circuit adjustment mode is terminated without pressing ENTER, changes in adjustment data are not saved.
E. Terminating the Circuit Adjustment Mode
Press the MENU button on the remote hand unit twice to terminate the adjustment mode. Note: The circuit adjustment mode can also be terminated by turning power OFF.
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F. Circuit Adjustment Mode Toggle (NTSC / HD / 480P)
When in the Circuit Adjustment Mode, pressing 3 toggles between the NTSC, HD and 480P (DVD) modes. Since the signal source cannot be changed when in the Circuit Adjustment Mode, the toggle cannot be used to perform adjustments, but can be used to preset data in the three modes. CAUTION: Data is not automatically saved when 3 is pressed. Press ENTER to save data changes before pressing 3.
G. Direct Key Mode
This feature is for Factory Use Only. It enables access to the Service Adjustment Modes by using the VCR buttons on the remote control. 1. 2. 3. 4. Activate the Factory Option Menu (MENU-1-2-7-0) Change the option for DIRECT KEY MODE from OFF to ON. Exit the Option Menu (Press MENU twice). Service Adjustment Modes can now be activated using the following VCR buttons on the remote: REWIND... activates the Circuit Adjustment Mode PLAY........ activates the Coarse Convergence Mode STOP....... activates the Fine Convergence Mode PAUSE..... activates the Factory Option Menu 5. After performing adjustments, set the DIRECT KEY MODE option back to OFF.
IMPORTANT
If the DIRECT KEY MODE is not turned OFF: The VCR buttons will not control a VCR The user has access to the Adjustment Modes
3.
Convergence Adjustment Mode
The Convergence mode is used to perform raster geometry correction, and convergence adjustments. These adjustments must be made in both the SD (NTSC) and HD modes.
A. Convergence Mode Activation
1. 2.
Press MENU-1-2-5-9 When the Convergence Mode is activated, the display below appears on a Green Crosshatch.
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B. Selecting the HD or SD Mode
1. 2.
Select the Signal Source before entering the Convergence Mode, either an NTSC or HD source. Enter the Convergence Mode If the signal source is NTSC, the SD mode is activated. If the signal source is HD, the HD mode is activated. (Mitsubishi HD-1080 DTV Receiver required.) Activating the HD mode when no HD signal is available Activate the Factory Option Menu (MENU-1-2-7-0) Use the Adjust keys to select DTV Port and use the Enter key to change the setting from AUTO to HD. Exit the Option Menu (Press MENU twice) Select the DTV Inputs as the signal source (INPUT button) Activate the Convergence Mode ... the Convergence mode will be in the HD mode and the internal crosshatch is displayed. After adjusting Convergence, be sure to set the DTV Port back to AUTO. Select an analog Input as the signal source (INPUT button) Activate the Factory Option Menu (MENU-1-2-7-0) Use the Adjust keys to select DTV Port and use the Enter key to change the setting from HD to AUTO. Exit the Option Menu (Press MENU twice)
3.
4.
C. Convergence Mode Functions
In the Convergence Mode there are three main Functions (Categories). Pressing 6 activates CONV MISC Pressing 5 activates COARSE CONV Pressing 4 activates FINE CONV
D. CONV MISC (Press 6)
This mode is used to preset data values controlling the Convergence Generator, and to perform the HV Regulation adjustment. 1. Use the VIDEO button to select an item. 2. Use the ADJUST buttons to change data. NOTE: When Item 0 HVOL is selected the screen goes black except for the data display. This occurs since a black screen is required when making the HV Regulation adjustment.
E. COARSE CONV (Press 5)
There are four Sub Functions in the Coarse mode, COARSE GREEN, COARSE RED, COARSE BLUE and DF. COARSE GREEN .... used to make Coarse Raster Geometry Adjustments. COARSE RED ... used to make Coarse Red Convergence Adjustments. COARSE BLUE ... used to make Coarse Blue Convergence Adjustments. DF ... used to preset data values controlling the Dynamic Beam Focus circuit drive signal. 1. Use AUDIO button to select a Sub Function 2. Use the VIDEO button to select an Adjustment Item. 3. Use the ADJUST buttons to change data.
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F. FINE CONV (Press 4)
Sub Functions This mode is used to perform Fine Raster Correction, and Fine Red and Blue Convergence Adjustments. There are three Sub Adjustment Functions, selected with the AUDIO button: FINE GREEN .... a Green Crosshatch is displayed, to make Fine Raster Corrections. FINE RED .... a White Crosshatch is displayed, to make Fine Red Convergence Adjustments. FINE BLUE .... a White Crosshatch is displayed, to make Fine Blue Convergence Adjustments. Cursor In the Fine mode a Cursor is added to the Crosshatch. The ENTER button toggles the Cursor between two modes: MOVE (blinking Cursor) .... use the ADJUST buttons to select any of 64 points on the Crosshatch. ADJUST (Non blinking Cursor) .... the ADJUST buttons adjust the active color at the current Cursor position, horizontally or vertically.
Cursor Coordinates Specific intersections in the Crosshatch are assigned vertical and horizontal coodinates. These are shown in the adjacent diagram. The Cursor can only be moved to those positions that have coordinates assigned. If the Cursor is at coordinates outside the screen area, the Cursor will not be visible. Use the ADJUST buttons to move the Cursor to an intersection on the screen.
Display The on-screen display changes in the Fine mode, as shown at the right. The display shows the vertical and horizontal data for the current Cursor Position, and the horizontal and vertical coordinates for that position.
G. Saving Data and Exiting the Convergence Mode
Press MENU twice to exit the Convergence mode, data is automatically saved.
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Conv/Defl] 19. Geometry Preset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------NTSC & HD Video & HD Inputs
Purpose: Symptom:
To preset data controlling raster geometry Raster distortion.
Note: This procedure is usually only necessary if: An E2PROM is replaced in the Control or Convergence circuits. E2RESET or Convergence Reset has been activated. Procedure In the Service Adjustment and Coarse Convergence Modes set the data to the values given in the Tables below.
Function Display V16N Data V16W 55/65/73" V16W 46" Item # Abbrev. HD NTSC HD NTSC HD NTSC 1 HWID 34 39 40 44 38 44 2 HKEY 35 36 40 36 30 25 3 EWPT 47 55 25 25 31 25 4 EWCT 42 42 40 40 40 40 5 EWPB 36 54 31 20 27 20 6 EWCB 34 34 38 34 38 34 7 VHGT 16 16 31 40 21 31 8 VLIN 0 0 0 0 0 0 9 VSCN 7 7 7 7 7 7 10 VLNT 0 0 0 0 0 0 11 VLNB 0 0 0 0 0 0
DEFL JUNGLE Function
SERVICE MODE Activate .. MENU-1-2-5-7 Function .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
CONVERGENCE MODE Acivate ..MENU-1-2-5-9 Misc. ."6" Coarse..."5" Fine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
CONV GREEN Items
Item Number 0 1 2 3 4 5 6 7 Abbrev. Name HSTA* SPCC HWID SKEW VSTA* VKEY TBPC TILT
CONV. HD WITH NO SIGNAL 1. MENU-1-2-7-0 2. Set DTV Port to HD 3. MENU (twice) 4. INPUT select HD Inputs 5. MENU-1-2-5-9 After adjusting, set the DTV Port to AUTO
Data (SD/HD) 50-60" 55-65-73" 46" -35/-35 0/0 0/0 0/0 -35/-35 0/-10 0/0 0/0 -220/-150 -220/-200 -220/-200 0/0
CONV RED Items
Item Number 0 1 2 3 4 5 6 7 Abbrev. Name HSTA* HLIN SKEW HWID HSBW VST* VKEY TILT
Data (SD/HD) 50-60" 55-65-73" 46" +50/+50 +40/+50 +75/+75 -220/-200 -210/-200 -225/-210 0/0 +10/+10 +5/+5 0/0 -25/-5 +15/+20 30/30 -20/-20 -140/-120 -100/-100 -115/-85 0/0
CONV BLUE Items
Item Number 0 1 2 3 4 5 6 7
Abbrev. Data (SD/HD) Name 50-60" 55-65-73" 46" HSTA* -50/-50 -40/-40 -75/-75 HLIN +220/+200 +240/+220 +240/+215 SKEW 0/0 -10/-10 0/0 HWID 0/0 -20/-5 -15/-20 HSBW -50/-50 -45/-45 -45/-45 VST* -20/-20 -10/-10 -5/-5 VKEY +140/+120 +115/+115 +115/+105 TILT 0/0 0/0
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Deflection Circuit] 20: Deflection Geometry Adjustment
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------Monoscope (NTSC & HD) Video & HD Inputs
Purpose: Symptom:
To set the height, width and linearity of the raster. Incorrect height, width and/or linearity.
NTSC Mode 1. Supply an NTSC Monoscope signal to a Video Input. 2. Select the Monoscope as the signal source (Input button) 3. Activate the Service Mode, Defl. Jungle Function. 4. Select and adjust each of the following items. 7 VHGT ... so the vertical marker sum = 4 8 VLIN ... so the large circle is round 1 HWD ... so the horizontal marker sum = 7 5. Save data and Exit the Service Mode. HD Mode 1. Supply a Monoscope signal to a HD Inputs. 2. Select the HD Inputs as the signal source (Input button) 3. Activate the Service Mode, Defl. Jungle Function. 4. Select and adjust each of the following items. 7 VHGT ... so the vertical marker sum = 2 8 VLIN ... so the large circle is round 1 HWD ... so the horizontal marker sum = 10 5. Save data and Exit the Service Mode.
SERVICE M ODE Activate .. MENU-1-2-5-7 Function .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Convergence Circuit] 21. Convergence Geometry Adjustment
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------NTSC -- None HD -- HD sync Video & HD Inputs
Purpose: Symptom:
To set the Convergence circuit geometry adjustments. Raster distortion at the top, bottom or sides of the picture.
Note: Deflection Circuit Geometry must be performed before this adjustment. NTSC mode 1. Select a Video Input with no signal. 2. Activate the Convergence Mode, Coarse Green. 3. Adjust the Coarse Green Items shown below for straight crosshatch lines. 4. Select the Fine Green Mode, a Cursor is displayed on the crosshatch. 5. Use the Cursor to adjust for straight crosshatch lines. 6. Exit the Convergence Mode. HD mode 1. Supply horizontal and vertical HD sync to the HD Inputs. Note: If an HD signal is not available, use the Conv. HD With No Signal procedure. 2. Select the HD Inputs as the signal source (Input button) 3. Enter the Convergence Mode, Coarse Green. 4. Repeat NTSC Steps 3 through 6 in the HD mode.
CONV. HD WIT H NO SIGNAL 1. MENU-1-2-7-0 2. Set DTV Port to HD 3. MENU (twice) 4. INPUT select HD Inputs 5. MENU-1-2-5-9 After adjusting, set the DT V Port to AUT O
CONVERGENCE MODE Acivate ..MENU-1-2-5-9 Misc. ."6" Coarse..."5" Fine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Convergence Circuit] 22. Centering and Static Convergence
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------NTSC -- None HD -- HD sync Video & HD Inputs
Purpose: Symptom:
To converge red, green and blue at the center of the screen Color edging over the entire picture.
Preliminary Degauss the shield cover and bracket unit of the CRT assembly and chassis. HD mode 1. Supply an HD Monoscope signal to the HD Inputs. 2. Select the HD Inputs as the signal source (Input button). 3. Activate the Service Mode, Defl. Jungle Function. 4. Check that the data for Item 14 HPOS is set to 34. 5. Save data and Exit the Service Mode. 6. Enter the Convergence Coarse mode. 7. Check that the data for the HSTA and VTSA items for red, green and blue are set to 0. 8. In the Coarse Green mode: Center the Green Raster using the Green Centering Magnet. Rotate the Green Deflection Yoke to correct any tilt. 9. In the Coarse Red mode, use the Red Centering Magnet to converge red on the green at the center of screen. Correct any red tilt with the Red Deflection Yoke. 10. In the Coarse Blue mode, repeat Step 9 using the Blue Centering magnet and the Blue Deflection Yoke. 11. Exit the Convergence mode. SD mode 1. Supply an NTSC Monoscope signal to a Video Input. 2. Select the Monoscope as the signal source (Input button). 3. Activate the Service Mode, Defl. Jungle Function. 4. Check that the data for Item 14 HPOS is set to 35. 5. Save data and Exit the Service Mode. 6. Enter the Convergence Coarse mode. 7. In the Coarse Green mode, use Items 0 HSTA and 4 VSTA to center the green raster. 8. In the Coarse Red mode, use Items 0 HSTA and 5 VSTA to converge red on the green at the center of the screen. 9. In the Coarse Blue mode, repeat step 8 to converge the blue on the green. 10. Exit the Convergence mode.
SERVICE M ODE Activate .. MENU-1-2-5-7 Function .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
CONVERGENCE MODE Acivate ..MENU-1-2-5-9 Misc. ."6" Coarse..."5" Fine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Convergence Circuit] 23. Coarse Convergence
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------NTSC -- None HD -- HD sync Video & HD Inputs
Purpose: Symptom:
To converge red and blue on green at the edges of the screen. Color edging at the top, bottom and sides of the screen.
SD mode 1. Select an External Input with no signal. 2. Activate the Convergence Mode, Coarse Red. 3. Adjust the Items shown below to converge the red on the green. 4. Select Coarse Blue mode. 5. Adjust the Items shown below to converge the blue on the green. Note: If center convergence shifts, use red and blue Items 0 HSTA and 5 VSTA to correct the shift. 4. Exit the Convergence Mode. HD mode 1. Select an HD signal (sync only). (If no HD signal is available, use the Conv. HD with No Signal procedure) 2. Repeat SD Steps 2 through 7 in the HD mode. 3. Exit the Convergence mode.
CONV. HD WIT H NO SIGNAL 1. MENU-1-2-7-0 2. Set DTV Port to HD 3. MENU (twice) 4. INPUT select HD Inputs 5. MENU-1-2-5-9 After adjusting, set the DT V Port to AUT O
CONVERGENCE MODE Acivate ..MENU-1-2-5-9 Misc. ."6" Coarse..."5" Fine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
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MODELS: VS-50805 / VS-60805 / WT-46805 / WS-55805 / WS-55905 / WS-65905 / WS-73905
[Convergence Circuit] 24. Fine Convergence
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------NTSC -- None HD -- HD sync Video & HD Inputs
Purpose: Symptom:
To converge red, green and blue at the edges of the screen Color edging at the edges of the picture.
SD Fine Adjustment 1. Select an External Input, no signal. 2. Activate the Convergence Mode, Fine Red. 3. Use the Cursor to converge red on the green. 4. Select the Fine Blue mode. 5. Use the Cursor to converge blue on the green. 6. Exit the Convergence mode. HD Fine Adjustment 1. Select an HD signal (sync only). (If no HD signal is available, use the Conv. HD No Signal Procedure.) 2. Repeat SD Steps 2 through 7, in the HD mode.
CONVERGENCE MODE Acivate ..MENU-1-2-5-9 Misc. ."6" Coarse..."5" Fine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
CONV. HD WIT H NO SIGNAL 1. MENU-1-2-7-0 2. Set DTV Port to HD 3. MENU (twice) 4. INPUT select HD Inputs 5. MENU-1-2-5-9 After adjusting, set the DT V Port to AUT O
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