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MITSUBISHI ELECTRIC
Ser vice Manual
PROJECTION TELEVISION V20A / V20C / V20C+ CHASSIS
2002
V20A MODELS
V20C MODELS
V20C+ MODELS
VS-50111 VS-60111
WS-55411 WS-65411 WS-73411
WS-48311 WS-55311 WS-65311
WS-55411 WS-65411 WS-73411
CAUTION: Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and "PRODUCT SAFETY NOTICE" contained in this manual.
SPECIFICATIONS
· Power : AC 120V, 60Hz 240W (Except WS-73411) 275W (WS-73411 Only) : VHF 54 ~ 470MHz UHF 470 ~ 806MHz : VHF/UHF 75 unbalanced : [7 inches] all but WS-73411 : [9 inches] WS-73411 only : 32.0kV (at 0A) · Input Level · Speaker : [VS-50111 / VS-60111] Two 4" round, full range (8 5W) : [WS-48311 / WS-55311 / WS-65311] Two 5" round, full range (8 10W) : [WS-55411 / WS-65411 / WS-73411] Two 6" round, full range (8 10W) : VIDEO IN JACK (RCA Type) 1.0Vp-p 75 unbalanced : AUDIO IN JACK (RCA Type) -4.7dBm 43k unbalanced : S-VIDEO IN JACK (Y/C separate) Y=1.0 Vp-p C=0.286Vp-p(BURST) 75 unbalanced : COMP / Y, Cr, Cb (RCA Type) Y=1.0 Vp-p. Cr, Cb=700mVp-p : ATV / Y(G), Pr(R), Pb(B), H, V Y 1.0Vp-p with sync 75 (RCA Type) Pr, Pb: 700mV 75 H, V: 3.0Vp-p 75 : VIDEO OUT JACK (RCA Type) 1.0Vp-p 75 unbalanced : AUDIO OUT JACK (RCA Type) -4.7dBm 4.7k unbalanced
· Frequency Range · Antenna Input · CRT Size
· High Voltage
· Weight / Cabinet Demensions
Model VS-50111 VS-60111 WS-48311 WS-55311 WS-55411 WS-65311 WS-65411 WS-73411
Weight Height Width Depth 200 lbs 50.3" 42.4" 23.6" 263.5 lbs 60.8" 50.6" 29.2" 171.5 lbs 49" 44.5" 23" 237 lbs 50" 50.6" 26.3" 250 lbs 50.4" 50.6" 27.9" 326.5 lbs 61.9" 59" 28.1" 326.5 lbs 61.9" 59" 28.1" 400 lbs 66.1" 66.1" 28.9"
· Output Level
· Weight and dimensions shown are approximate. · Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904 Copyright © 2002 Mitsubishi Digital Electronics America, Inc. All Rights Reserved
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CONTENTS
INTRODUCTION ................................................................................................................................ 5 PRODUCT SAFETY NOTICE ............................................................................................................. 5 SAFETY PRECAUTIONS ................................................................................................................... 6 CABINET DISASSEMBLY WS-48311 (Front View) .......................................................................................................... 7 WS-48311 (Rear View) ........................................................................................................... 8 VS-50111 / VS-60111 / WS-55311 / WS-65311 (Front View) ................................................... 9 WS-55411 / WS-65411 / WS-73411 (Front View) ................................................................. 10 VS-50111 / VS-60111 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411 (Rear View) .................................................................. 11 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS Lenticular Screen and Fresnel Lens Removal ......................................................................... 12 VS-50111 / VS-60111 / WS-55311 / WS-65311 ..................................................................... 12 WS-55411 / WS-65411 / WS-73411 ..................................................................................... 13 WS-48311 ............................................................................................................................ 14 Lenticular Screen and Fresnel Lens Installation .................................................................... 15 CABINET SEPARATION WS-65311 / WS-65411 / WS-73411 ..................................................................................... 16 SERVICING THE DIAMONDSHIELDSTM r DiamondShield TM Removal & Installation ...................................................................................... 17 SERVICING PCBs Chassis Removal .......................................................................................................................... 18 PCB Locations .............................................................................................................................. 18 Main Components Location ........................................................................................................... 18 Second Anode Lead Removal ....................................................................................................... 19 CRT REPLACEMENT CRT Removal ................................................................................................................................ 19 CRT Installation ............................................................................................................................ 20 ELECTRICAL ADJUSTMENTS Test Equipment ............................................................................................................................. 22 Initial Setup ................................................................................................................................... 23 LED Indicator Diagnostics ............................................................................................................. 24 Circuit Adjustment Mode ............................................................................................................... 25 Convergence Adjustment Mode ..................................................................................................... 26 Adjustment Items List ................................................................................................................... 28 Adjustment Test Points ................................................................................................................. 31 Adjustment Procedures High Voltage Regulation ....................................................................................................... 32 Main/Sub Y Level ................................................................................................................. 32 Main/Sub Color Level ........................................................................................................... 33 CRT Cutoff ........................................................................................................................... 33 White Balance (NTSC) ......................................................................................................... 34 White Balance (HD) ............................................................................................................. 34 Black Level .......................................................................................................................... 35 Sub Contrast ....................................................................................................................... 35
Page 3
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Dynamic Focus Preset ........................................................................................................ 36 Lens Focus .......................................................................................................................... 36 Electrostatic Focus & Alignment Magnet Adjustment .......................................................... 37 On Screen Display Character Position ................................................................................. 37 Deflection/Convergence Geometry Presets .......................................................................... 38 Deflection Circuit Geometry Adjustments ............................................................................. 39 Convergence Circuit Geometry Adjustments ........................................................................ 40 Centering and Static Convergence ....................................................................................... 41 Coarse Convergence Adjustments ....................................................................................... 42 Fine Convergence Adjustments ............................................................................................ 43 CHIP PARTS REPLACEMENT ......................................................................................................... 44 REPLACEMENT PARTS Parts Ordering .............................................................................................................................. 45 Critical and Warranty Parts Designation ........................................................................................ 45 Parts Tolerance Codes .................................................................................................................. 45 Replacement Part Notes When replacing the RF-Switch or PCB-SIGNAL ................................................................... 45 When replacing the EEPROM .............................................................................................. 45 Quick Reference List .................................................................................................................... 46 Service Parts List .......................................................................................................................... 47 Screen Parts List .......................................................................................................................... 58 CIRCUITRY BLOCK DIAGRAMS Power Supply ............................................................................................................................... 61 Video / Color Signal Path .............................................................................................................. 62 Sync Signal Path .......................................................................................................................... 63 Deflection / HV .............................................................................................................................. 64 X-Ray Protect ............................................................................................................................... 65 HV Regulation ............................................................................................................................... 66 Sound Signal Path ........................................................................................................................ 67 Convergence ................................................................................................................................. 68 Control Circuitry ............................................................................................................................ 69
Section 2 .... Schematic Diagrams
SCHEMATIC DIAGRAMS Overall Block Diagram ................................................................................................................... 1 PCB-MAIN ..................................................................................................................................... 2 PCB-POWER ................................................................................................................................. 3 PCB-TERMINAL (Input Sw) ............................................................................................................. 4 PCB-TERMINAL (3DYC / Decoders) ............................................................................................... 5 PCB-SIGNAL-1 (AV I.O) .................................................................................................................. 6 PCB-SIGNAL-2 (Micro) ................................................................................................................... 7 PCB-SIGNAL-3 (VCJ) ..................................................................................................................... 8 PCB-SIGNAL-4 (Convergence Generator) ........................................................................................ 9 PCBs - FRONT / CONTROL / CRT / PREAMP ............................................................................. 10 PCB-2HDW-1 (Input) ..................................................................................................................... 11 PCB-2HDW-2) (Main) .................................................................................................................... 12 PCB-2HDW-3 (Output) .................................................................................................................. 13 PCB LAYOUT DIAGRAMS ............................................................................................................... 14
Page 4
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
INTRODUCTION
This service manual provides service instructions for the PTV Models listed below. Service personnel should read this manual thoroughly before servicing these chassis.
V20A Chassis VS-50111 VS-60111
V20C Chassis WS-48311 WS-55311 WS-65311
V20C+ Chassis WS-55411 WS-65411 WS-73411
This service manual includes: 1. Assembly and disassembly instructions for the front and rear cabinet components. 2. Servicing of the Lenticular Screen and Fresnel Lens. 3. Servicing printed circuit boards (PCBs). 4. CRT replacement procedure. 5. Electrical adjustments. 6. Chip parts replacement procedures. 7. Circuit path diagrams. The parts list section of this service manual includes: 1. Cabinet and screen parts. 2. Electrical parts. Schematic and block diagrams of the above listed models are included in this service manual for better understanding of the circuitry. PCB drawings are also included for easy location of parts and test points.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in television receivers have special safety related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have special safety characteristics are identified in this service manual. Electrical components having such features are identified by shading on the schematic diagram and by bold type in the parts list of this service manual. The replacement for any safety part should be identical in value and characteristics.
Page 5
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SAFETY PRECAUTIONS
NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on the receiver chassis.
WARNING: 1.
2.
3.
Operation of this receiver outside the cabinet or with the cover removed presents a shock hazard from the receiver's power supplies. Work on the receiver should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment. Do not install, remove or handle the picture tubes in any manner unless shatterproof goggles are worn. People not so equipped should be kept away while the picture tube is being handled. Keep the picture tube away from the body while handling. When service is required, observe the original lead dress. Extra precaution should be taken to assure correct lead dress in the high voltage area. Where a short-circuit has occurred, replace those components that indicate evidence of overheating.
X-Radiation warning The surface of the cathode ray tubes (CRTs) may generate X-Radiation, so take proper precautions when servicing. It is recommended that a lead apron be used for shielding while handling the CRT. Use this method if possible. When replacing the CRTs, use only the designated replacement part since it is a critical component with regard to X-Radiation. High voltage must be set as prescribed under the section titled Electrical Adjustments. Leakage current check Before returning the receiver to the customer, it is recommended that leakage current be measured according to the following methods.
1. Cold Check
With the alternating current (AC) plug removed from the AC source, place a jumper across the two AC plug prongs. Connect one lead of an ohm meter to the AC plug and touch the other lead to each exposed metal part (i.e. antennas, handle bracket, metal cabinet, screw heads, metal overlay, control shafts, etc.), particularly any exposed metal part that has a return path to the chassis. The resistance of the exposed metal parts having a return path to the chassis should be a minimum of 1Mega Ohm. Any resistance below this value indicates an abnormal condition and requires corrective action.
2. Hot Check ...Use the circuit shown below to perform the hot check test.
1. Keep switch S1 open and connect the receiver to the measuring circuit. Immediately after connection, and with the switching devices of the receiver in their operating positions, measure the leakage current for both positions of switch S2. 2. Close switch S1, energizing the receiver. Immediately after closing switch S1, and with the switching devices of the receiver in their operating positions, measure the leakage current for both positions of switch S2. Repeat the current measurements of items 1 and 2 after the receiver has reached thermal stabilization. The leakage current must not exceed 0.5 milliampere (mA).
Page 6
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET DISASSEMBLY (FRONT VIEW)
WS-48311
*Refer to PARTS LIST for Part Numbers
Front Cabinet Disassembly
1. Remove the Speaker Grille by pulling forward. 2. Remove the Board-Front by removing screws "a". 3. Remove the Screen Assembly by removing screws "b". Disconnect all cable harnesses between the Screen Assembly and the PCB-Signal. 4. Lift the Screen Assembly and pull up and away from the cabinet as shown.
Page 7
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET DISASSEMBLY (REAR VIEW)
WS-48311
Rear Cabinet Disassembly
1. 2. 3. 4. Remove the Back Board by removing screws "a", "b" and "c". Remove the Back Cover by removing screws "e". Remove 4 screws "d" securing the Light Box Assembly. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (e.g. speaker plugs). 5. Slide the Light Box Assembly out of the cabinet.
Page 8
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET DISASSEMBLY (FRONT VIEW)
VS-50111 VS-60111 WS-55311 WS-65311
Front Cabinet Disassembly
1. Remove the Speaker Grille by pulling forward. 2. Remove the Front-Board by removing screws "a". 3. Remove the Screen Assembly by removing screws "b". Disconnect all cable harnesses between the Screen Assembly and the PCB-Signal. 4. Lift the Screen Assembly and pull up and away from the cabinet as shown.
Page 9
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET DISASSEMBLY (FRONT VIEW)
WS-55411 WS-65411 WS-73411
Front Cabinet Disassembly
1. 2, 3. 4. Remove the Speaker Grille by pulling forward. Remove the Control Panel by removing screws "a". Remove the Board-Front by removing screws "b". Remove the Screen Assembly by removing screws "c". Disconnect all cable harnesses between the Screen Assembly and the PCB-Signal. 4. Lift the Screen Assembly and pull up and away from the cabinet as shown.
Page 10
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET DISASSEMBLY (REAR VIEW)
VS-50111 VS-60111 WS-55311 WS-55411 WS-65311 WS-65411 WS-73411
Rear Cabinet Disassembly
1. 2. 3. 4. 5. Remove the Back Board by removing screws "a". Remove the Board Slide by removing screws "b". Remove the two Board Shelves by removing screws "c". Remove 4 screws "d" securing the Light Box Assembly. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (e.g. speaker plugs). 6. Slide the Light Box Assembly out of the cabinet. Page 11
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
VS-50111 VS-60111 WS-55311 WS-65311
1. Removal of the Lenticular Screen and Fresnel Lens
CAUTION: Wear gloves when handling the Lenticular Screen and the Fresnel Lens. This prevents cuts and finger prints. Do not place the Fresnel Lens in the sun. This may cause fire and heat related injuries. 1. Remove the screen assembly as shown in the Cabinet Disassembly procedure. 2. Remove the Screen Holder by removing screws (a). 3. Slide the Lenticular Screen and Fresnel Lens from the Screen Frame.
Note: When separating the Lenticular Screen from the Fresnel Lens, use caution while prying the Screen and Lens apart. Use a slot type screw driver, and remove the pressure sensitive, double sided tape.
Page 12
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
WS-55411
CAUTION:
WS-65411
WS-73411
Wear gloves when handling the Lenticular Screen and Fresnel Lens. This prevents cuts and finger prints. Do not place Fresnel Lens in the sun. This may cause fire and heat related injuries.
1b. Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly as shown in the Cabinet Disassembly procedure. 2. Remove the Screen Frame top section by removing 4 screws (a). 3. Carefully grasp the Lenticular Screen and Fresnel Lens combination and pull upward and out of the Screen Frame Assembly. Note: When separating the Lenticular Screen from the Fresnel Lens, use caution while prying the Screen and Lens apart. Use a slot type screw drive, and remove the pressure sensitive double sided tape.
Page 13
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
WS-48311
CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens. This prevents cuts and finger prints. Do not place Fresnel Lens in the sun. This may cause fire and heat related injuries.
1c. Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly as shown in the Cabinet Disassembly procedure. 2. Remove the Top, Bottom and Side Holder Screens.. 3. Carefully lift the Lenticular Screen and Fresnel Lens combination from the Screen Frame Assembly. Note: When separating the Lenticular Screen from the Fresnel Lens, use caution while prying the Screen and Lens apart. Use a slot type screw drive, and remove the pressure sensitive double sided tape.
Page 14
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
2. Installation of the Lenticular Screen and Fresnel Lens
Note: Store the Lenticular Screen and Fresnel Lens in a cool dry place. High humidity may deform the Lenticular Screen and Fresnel Lens. 1. Apply double coated tape (Part # LENS-TAPE) along the top front edge of the Fresnel Lens as shown in Figure 2-2. Refer to Table A and Table B for proper tape length. 2. Place the Fresnel Lens on top of the Lenticular Screen and apply pressure at the top edge to bond them together as shown in Figure 2-2. 3. Reverse the disassembly procedure for that model to install the screens in the screen frame.
Fresnel Lens Top ( * X ) inch Double Sided Tape (Part# LENS-TAPE) Bottom 0.16 inch Fresnel Lens Lenticular Screen
Top
Bottom Lenticular Screen
Figure 2-2
4:3 Aspect Models Screen Model Size VS-50111 50" VS-60111 60" Table A 16:9 Aspect Models Screen Model Size WS-48311 48" WS-55311 55" WS-55411 55" WS-65311 65" WS-65411 65" WS-73411 73" Table B
Tape Length 40" 47.9"
Tape Length 41.76 47.85 47.85 56.55 56.55 63.51
Page 15
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
CABINET SEPARATION PROCEDURE (WS-65311 / WS-65411 / WS-73411)
Models WS-65311, WS-65411 and WS-73411 cabinets are assembled in two pieces. These two pieces may be separated to allow easier delivery and setup.
WS-65311 Cabinet Separation Precedure
1. Remove the Screen Assembly and disconnect all cable harnesses between the Frame Assembly and the PCB-SIGNAL, refer to Cabinet Front Disassembly. 2. Remove the 4 screw covers "a". 3. Remove 4 screws "b" securing the top and bottom cabinet sections . 4. Carefully lift the cabinet top and place it on the floor. 5. Place the cabinet bottom in the desired location. 6. Reverse the procedure and mount the cabinet top on the cabinet bottom. 7. Reinstall the the Screen Assembly and connect all cable harnesses between the Screen Assembly and the PCB-SIGNAL.
WS-65311
WS-65411 / WS-73411 Cabinet Separation Precedure
1. Remove the 4 screw covers "a". 2. Remove 4 screws "b" securing the top and bottom cabinet sections . 3. Carefully lift the cabinet top and place it on the floor. 4. Place the cabinet bottom in the desired location. 5. Reverse the procedure and mount the cabinet top on the cabinet bottom.
WS-65411 / WS-73411
Page 16
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SERVICING THE DIAMONDSHIELDTM 1. DiamondShieldTM Removal Procedure
The location of the DiamondShieldTM molding clips may vary between models, top and bottom, or sides. Use the appropriate disassembly procedure given below. Note: Wear gloves when handling the DiamondShieldTM to prevent finger prints.
Top & Bottom Molding Clips
Side Molding Clips
1. Gently insert a small screwdriver between the DiamondShieldTM and one end of the clip to pry the clip loose.
1. Gently insert a small screwdriver between the DiamondShieldTM and one end of the clip to pry the clip loose.
2. Remove both clips by pulling them toward you.
2. Remove both clips by pulling them toward you.
3. Carefully insert a small screwdriver into the gap at the top/center point of the Shield and pull the Shield slightly away from the unit. Place your hands at the points shown and gently bow the Shield toward you and remove from the unit. Then re-install the two clips.
3. Carefully insert a small screwdriver into the gap at the side/center point of the Shield and pull the Shield slightly away from the unit. Place your hands at the points shown and gently bow the Shield toward you and remove from the unit. Then re-install the two clips.
2. DiamondShieldTM Installation Procedure
*(See the Parts List for DiamondShieldTM part numbers) To install the DiamondShieldTM, reverse the above Removal Procedure.
Page 17
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
SERVICING PCBs
Chassis Removal and PCB Locations Chassis Removal
1) Remove screw "a" from the Main Chassis. 2) Raise the two chassis locks on the inner sides of the Lightbox Assembly and slide the chassis towards the rear.
Major Parts Locations
Page 18
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
ANODE LEAD REMOVAL
CAUTION: To prevent damage, the following procedure must be used when removing an Anode Lead from the Flyback Transformer.
1) Push the Anode Lead down.
2) While holding the lead down rotate the lead 90º counter clockwise.
3) Carefully remove the Anode Lead from the Flyback Transformer.
CRT REPLACEMENT
1. Removal of the CRT
Caution! High voltage should be completely discharged prior to CRT removal. Since the CRTs receive high voltage from the Flyback transformer, discharge by shorting the open end of the respective high voltage cable to chassis ground.
1. 2. 3. 4. 5. 6.
Note: Refer to Cabinet Disassembly when performing steps 1 through 4. Remove the Speaker Grille, Front Board, and Screen Assy. Remove the Back Board. Remove the Anode Lead Wire from the Flyback transformer. (Use the above procedure) Remove the PCB-CRT. Remove 4 hex-screws "a" retaining the Optical Unit. [Figure 5-1] Remove 4 screws "b" retaining the Lens. Note: DO NOT loosen the RED screws. Doing so will break the seal between the C-Element and the # 6 Lens, causing leakage of the CRT Coolant. 7. Remove 4 screws "c" retaining the CRT. [Figure 5-2] 8. Remove the Deflection Yoke from the neck of the CRT. [Figure 5-7]
Figure 5-1
Page 19
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Note: The 4 spring-loaded screws shown in Fig 5-2 and labeled as "DO NOT REMOVE", should not be loosened under any circumstance. Doing so will break the seal between the CRT and the CRT-Spacer, causing leakage of the CRT Coolant.
Figure 5-2
2. Installation of the CRT
Note: The replacement CRT is supplied as an assembly comprised of the CRT and the Inner Lens with the space between them filled with ethylene glycol. Care should be taken during handling and installation to prevent shock from disrupting the seal or alignment between the CRT and Inner Lens. [Figure 5-3]
Figure 5-3
Figure 5-5 Figure 5-4 Page 20
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
1. Carefully position the replacement CRT and fasten in place using 4 screws "d". [Figure 5-5] 2. Install the Deflection Yoke on the CRT neck. [Figure 5-6] 3. Install the Lens that was removed in steps 5 and 6 of Removal Of The CRT. [ Figures 5-1 and 5-2 ] a) Position the Lens so that the Label faces the direction shown in Figure 5-7 b) Install the mounting screws. [Figure 5-1] 4. Install the PCB-CRT. 5. Insert the Optical Unit into the Light Box Assembly. 6. Insert the Anode Lead Wire into the Flyback Transformer. 7. Re-clamp the Lead Wire in its original position.
Figure 5-6
Figure 5-7
Adjustment procedures after replacing the CRT(s) · CRT Cut Off / White Balance Adjustment · Static Convergence Adjustment · Dynamic Convergence Adjustment
Page 21
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
ELECTRICAL ADJUSTMENTS
Note: Perform only the adjustments required. Do not attempt an alignment if proper equipment is not available.
1. Test Equipment
· · · · · · Oscilloscope (Unless otherwise specified, use 10:1 probes) Signal Generator (both SD and HD capable) Frequency Counter Direct Current Voltmeter Direct Current Power Supply Multiplex Audio Signal Generator Direct Current Ampere Meter
2. Test Signal
A. Monoscope Signal
Note: If you do not have a monoscope signal source, connect the unit to a VCR and play a Monoscope *alignment tape. (* Part Number: 859C568060)
B. Color Bar Signal
Use the color bar signal shown below, unless otherwise specified in this manual. Monoscope Signal
100% 75%
40%
40% 1H
Split-Field Color Bars (100% window) Page 22
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
3. 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 "2", "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.
MENU-2-2-7-0 OPTION MENU Initial Power Restore DTV Port Direct Key Mode
:OFF :Auto :OFF
B. Default Settings
MAIN MENU DEFAULT SETTINGS
SETUP Memorize channels ANT-A - Air Language (idioma) English Front Button Lock Off CLOCK Clock Setting Auto Time Zone Eastern Daylight Savings Time Applies Clock Time N/A Set Day N/A CAPTIONS Closed Captions On if Mute CC Background Gray CHANNEL EDIT Antenna ANT-A Channel 3 Memory Deleted Name N/A SQV N/A V-CHIP-LOCK V-Chip Off TV Rating TV-PG FV- Fantasy Violence Allow D-Sexual Dialog Allow L-Adult Language Allow S-Sexual Situations Allow V-Violence Allow Programs Not Rated Allow AUDIO/VIDEO Movie Rating PG A/V Memory Reset Ant-A TV Speakers (Internal) On V-CHIP LOCK By Time V-Chip Start Time 12:00AM Audio Output Variable V-Chip Stop Time 12:00AM AUDIO SETTINGS Lock by Time Off TV Bass 0.5 Lock Time N/A TV Treble 0.5 Unlock Time N/A TV Balance 0.5 TV Surround Off ADVANCED FEATURES Video Mute On TV Listen To Stereo Black Enhancement On TV Level Sound Off VIDEO SETTINGS TV Contrast 1 TIMER Timer Off TV Brightness 0.5 Set Time 12:00PM TV Sharpness 0.5 Set Day Everyday TV Color 0.5 Device Ant-A TV Tint 0.5 Channel 3 TV Color Temp High TV Video Noise Standard COLOR BALANCE Auto Color Correction Off TV Film Mode (Auto) Off TV VSM Sharpness On MANUAL COLOR ADJUST. Magenta 0.5 TV Volume 0.3 Red 0.5 PIP Source Ant-A Ch 3 Yellow 0.5 PIP Position Lower Right Green 0.5 POP Position Right Half Cyan 0.5 Format Stretch Blue 0.5 PIP/POP Format Side by Side
Page 23
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Items in the table below are set to following after Initalization.
AV Memory Initial Settings
A/V Memory Contrast Brightness Sharpness Color Tint Color Temp. Video Noise Image type TV VSM On Sharpness Bass Mid Mid Treble Mid Balance Off Surround Stereo Listen To Off Level Sound Ant-A Ant-B Max Mid Mid Mid Mid High Stnd. Video DTV Max Mid Mid Mid Mid High Stnd. Video On Mid Mid Mid Off N/A Off NTSC 1/2/3 Max Mid Mid Mid Mid High Stnd. Video On Mid Mid Mid Off N/A Off COMP. 1/2 Max Mid Mid Mid Mid High Stnd. Video On Mid Mid Mid Off N/A Off
4. LED Indicator Diagnostics
The "Power ON LED" provides an indication of the sets operation, and the possible cause of a malfunction.
A. Initial Control Circuitry Check
Immediately after the TV is connected to an AC power source: · The LED flashes three times ... indicating the Microprocessor has initialized and is functioning properly. · If the LED does not flash ... the Microprocessor is NOT functioning.
B. Error Code Operational Check
Pressing the front panel "INPUT" and "MENU" buttons at the same time, and holding for 5 seconds, activates the Error Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem has occured since the last Initalization. Note: The front panel buttons must be used, NOT those on the Remote Control. · The number of flashes indicates the value of the MSD (tens digit) of the Error Code. · The flashing then pauses for approximately 1/2 second. · The LED then flashes indicating the value of the LSD (ones digit) of the Error Code. · The Error Code is repeated a total of 5 times. Example: If the Error Code is "24", the LED will flash two times, pause, and then flash four times.
C. Error Codes
The Error Code designations indicating a malfunction, or no malfunction, are listed below:
Error Code 12 21 22 23 24
Description No error has occurred. X-Ray Protect circuit. Short Protect circuit. Horizontal Deflection failure. Vertical Deflection failure.
Page 24
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
5. Circuit Adjustment Mode
Except for the following, all adjustment items must be performed using the remote hand unit. · Lens Focus · Electrostatic Focus
FUNCTION
CHASSIS
A. Activating the Circuit Adjustment Mode
1. Press the "MENU" button on a remote hand unit.
MODE
Video Chr Mode 0 1
ABBREV.
V20 NTSC
SIGNAL
2. Press the number buttons "2", "2", "5", "7" in sequence. ITEM# The screen will change to the Adjustment Mode. Note: Repeat steps 1 and 2 if the circuit adjustment mode display does not appear on screen
SCT
55
DATA
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:
CABLE/DBS
VCR
DVD
TV
AUDIO
1 4 7
SQV
2 5 8 0
3 6 9
POWER
SLEEP QV VIDEO
INPUT
CHANNEL VOLUME
AUDIO
VIDEO AUDIO
Video Chr FUNCTIONS HR Sub Matr
Defl Jung
ENTER
ENTER CANCEL
MUTE
GUIDE
MENU
ADJUST UP/DN MENU
HOME
PIP/POP PIP INPUT PIP CH
Main Matr
PIP SIZE
EXCH
INFO
2. Press the "VIDEO" button to select a specific Adjustment Item. The Item number increases each time the "VIDEO" button is pressed.
REC
STOP
PAUSE
REW/REV
PLAY
FF/FWD
C. Changing Data
After selecting an adjustment Item, use the "ADJUST UP/DOWN" button to change data. · · Press "ADJUST DOWN" to decrease the data value. Press "ADJUST UP" to increase the data value.
Page 25
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
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.
6. Convergence Adjustment Mode
The Convergence mode is used to perform raster geometry correction, and convergence adjustments as specified in Adjustment Procedures 15 through 18.
A. Convergence Mode Activation
SD
1. 2. Press MENU-2-2-5-9 When the Convergence Mode is activated, the display at the right appears on a Green Crosshatch.
Coarse BLUE HSTA -50
1
Coarse Conv. Display
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 (MENU-2-2-5-9) · If the signal source is NTSC, the SD mode is activated. · If the signal source is HD 1080i, the HD mode is activated. Activating the HD mode when no HD signal is available. · Activate the Factory Option Menu (MENU-2-2-7-0) · Use the "Adjust" keys to select "DTV Port" and press "Enter" to change the setting to "1080i". Sequence = "Auto"-"480i"-480-p"-"1080i". Ignore any loss of sync while changing modes. · 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 Option Menu (MENU-2-2-7-0). · Use the "Adjust" keys to select "DTV Port and press "Enter" to change the setting from "1080i" 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. Page 26
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
1. 2.
Use the VIDEO button to select an item. Use the ADJUST buttons to change data. Note: When Item "1 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.
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, for Fine Raster Corrections. · FINE RED .... a White Crosshatch is displayed, for Fine Red Convergence Adjustments. · FINE BLUE .... a White Crosshatch is displayed, for 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.
Page 27
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Cursor Coordinates Specific intersections in the Crosshatch are assigned vertical and horizontal coordinates. These are shown in the preceeding 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 below. The display shows the vertical and horizontal data for the current Cursor Position, and the horizontal and vertical coordinates for that position. Horiz. Data
SD 13
Fine RED H1 V3 -32 Vert. Data
H Coord. V Coord.
F. Saving Data and Exiting the Convergence Mode
Press MENU twice to exit the Convergence mode, data is automatically saved. Note: If power is interrupted prior to properly exiting the Convergence Mode, changes in adjustment data will not be saved.
ADJUSTMENT ITEMS LIST
Video Chroma Function Menu-2-2-5-7 Data Item# Abbrev. Description Range 480i 480p 1080i Adjustment 1 SCT Picture Gain control 0~63 42 42 42 Sub Contrast 2 SBRT Sub Brightness 0~63 20 20 20 Black Level 3 SCON Sub Contrast 0~15 7 7 7 Preset 4 RDRH R Drive (H temp) 0~63 31 31 31 White Balance 5 GDRH G Drive (H temp) 0~63 41 41 41 Preset 6 BDRH B Drive (H temp) 0~63 31 31 31 White Balance 7 CTRH R Cutoff (H temp) 0~63 31 31 31 " 8 CTGH G Cutoff (H temp) 0~63 31 31 31 Preset 9 CTBH B Cutoff (H temp) 0~63 31 31 31 White Balance 10 RDRL R Drive (L temp) 0~63 31 31 31 " 11 GDRL G Drive (L temp) 0~63 41 41 41 Preset 12 BDRL B Drive (L temp) 0~63 31 31 31 White Balance 13 CTRL R Cutoff (L temp) 0~63 31 31 31 " 14 CTGL G Cutoff (L temp) 0~63 31 31 31 Preset 15 CTBL B Cutoff (L temp) 0~63 31 31 31 White Balance 16 GMMA RGB Gamma Correction 0~3 2 2 2 Preset 17 GAML Gamma Differential Corr. Switch 0~1 0 0 0 " 18 BRT Brightness 0~63 31 31 31 " 19 COL Color 0~63 31 29 35 White Balance 20 TINT Tint 0~63 28 31 31 Preset 21 SHRP Sharpness 0~63 31 31 31 " 22 CBOF Cb DC Offset 0~63 31 31 31 " 23 CROF Cr DC Offset 0~63 31 31 31 " 31 VMLE VM Output Level 0~3 1 2 2 " 40 AGIW White output aging mode switch 0~1 0 0 0 " 55 ABLT Threshold Adjust for ABL input 0~15 4* 4* 4* " * 0 for models WS-65311, WS-55411, VS-50111, VS-60111 and WS-73411,
Page 28
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Deflection Jungle Menu-2-2-5-7 48" 50"/60" 55" 65" 73" Item# Abbrev. Description Range HD NTSC HD NTSC HD NTSC HD NTSC HD NTSC 1 HWID Width 0~63 31 31 31 31 29 31 29 31 31 31 2 HKEY Horiz. Keystone 0~63 31 31 31 31 25 24 31 24 31 31 3 EWPT Top EW-PCC 0~63 31 31 31 31 31 31 31 31 31 31 7 VHGT Height 0~63 28 40 30 37 17 15 44 40 28 40 8 VLIN Vert. Linearity 0~15 5 5 5 5 5 5 7 7 5 5 9 VSCN Vert. S Corr. 0~15 0 0 0 0 0 0 0 0 0 0 18 VPOS Vert. Position 0~63 31 31 31 31 31 31 31 31 31 31
MAIN MATRIX Item# 1 2 3 Abbrev. TNTM COLM YDRM Description Main Tint Control Main Color Control Main Y Gain MENU-2-2-5-7 Data Range Initial 0~63 28 0~63 19 0~63 12 MENU-2-2-5-7 Data Range Initial 0~63 28 0~63 30 0~63 12 0~15 7 0~15 7 MENU-2-2-5-7 Initial 29 15
SUB MATRIX Item# 1 2 3 4 5 Abbrev. TNTS COLS YDRS VPDS UPDS Description Main Tint Control Main Color Control Main Y Gain U signal DC Control V signal DC Control
HR Item# 1 2
Abbrev. HR HRHD
Description NTSC Disp.Pos. HD Disp. Position
CONVERGENCE MODE ITEMS
CONV MISC. Item# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Abbrev. HVOL VCNT VSTR VOFS STLN FPHS CPHS HOFS DPHS DOFS TPHS TPVD ODEV HRTC DRTC DAC EPWP Description HV Adjust V-saw amplitude V-saw start timee V-saw offset Start line Fine phase Coarse phase H-saw offset DF coarse horiz phase DF offset Test Pattern phase Test Pattern Vert. Position Odd/Even detection H-saw retrace DF retrace External DAC selection EEPROM write protection
Page 29
Range 0~352 0~127 0~127 0~127 0~127 0~352 0~31 0~127 0~31 0~127 0~352 0~127 0~352 0~3 0~3 0~1 0~1
MENU-2-2-5-9-6 Data SD HD 150 150 29 29 0 10 10 8 38 26 296 288 15 15 22 22 1 1 34 34 39 31 22 39 200 125 1 1 1 1 1 1 0 0
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
COARSE CONV GREEN (MENU-2-2-5-9-5) # Abbrev. Description WS-48311 VS-50111 WS-55311 WS-55411 VS-60111 WS-65311 WS-65411 WS-73411 SD HD SD HD SD HD SD HD SD HD SD HD SD HD SD HD 1 HSTA Horiz. Position 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 VSTA Vert. Position 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 SKEW Skew (Y axis) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 TILT Tilt (X axis) 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 HWID Width 0 10 5 5 20 20 0 0 5 5 0 0 0 0 0 0 6 HLIN Horiz. Linearity 0 0 15 15 0 0 10 10 15 15 10 10 10 10 10 10 7 SPCC Side PC Corr. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 HKEY Horiz. Keystone 0 17 0 0 0 17 10 10 0 0 0 0 0 0 0 0 9 TBPC Top/Bottom PC -200 -169 -150 -150 -180 -190 -200 -190 -150 -150 -200 -170 -200 -170 -200 -180 10 VKEY Vert. Keystone 0 14 0 20 0 10 15 10 0 20 15 10 15 10 15 10 11 VWID Height 11 17 40 30 20 30 30 30 40 30 30 30 30 30 30 30 12 VLIN Vert. Linearity 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 COARSE CONV RED (MENU-2-2-5-9-5) # Abbrev. Description WS-48311 SD HD 1 HSTA Horiz. Position 50 50 2 VSTA Vert. Position 0 0 3 SKEW Skew (Y axis) 0 0 4 TILT Tilt (X axis) 0 0 5 HLIN Horiz. Linearity -195 -170 6 HWID Width 22 30 7 VKEY Vert. Keystone -100 -85 8 VWID Height 0 16 9 VLIN Vert. Linearity 0 0 10 TBPC Top/Bottom PC -200 -169 11 SDBW Side Bow 0 0
VS-50111 SD HD 50 50 0 0 0 0 0 0 -140 -125 5 0 15 -87 0 0 0 0 -150 -150 0 0
WS-55311 SD HD 50 50 0 0 0 0 0 0 -150 -170 0 0 -70 -90 0 0 20 20 20 20 30 30
WS-55411 SD HD 50 50 0 0 0 0 0 0 -180 -170 0 0 -100 -95 0 0 0 0 20 20 30 30
VS-60111 SD HD 50 50 0 0 0 0 0 0 -140 -125 5 0 15 -87 0 0 0 0 -150 -150 0 0
WS-65311 SD HD 50 50 0 0 0 0 0 0 -150 -150 0 0 -90 -70 0 0 0 0 20 20 30 30
WS-65411 SD HD 50 50 0 0 0 0 0 0 -150 -150 0 0 -90 -70 0 0 0 0 20 20 30 30
WS-73411 SD HD 50 50 0 0 0 0 0 0 -220 -190 0 0 -100 -110 0 0 0 0 20 20 30 30
COARSE CONV BLUE (MENU-2-2-5-9-5) # Abbrev. Description WS-48311 VS-50111 WS-55311 WS-55411 SD HD SD HD SD HD SD HD 1 HSTA Horiz. Position -50 -50 -50 -50 -50 -50 -50 -50 2 VSTA Vert. Position 0 0 0 0 0 0 0 0 3 SKEW Skew (Y axis) 0 0 0 10 0 0 0 0 4 TILT Tilt (X axis) 0 0 0 0 0 0 0 0 5 HLIN Horiz. Linearity 190 165 150 160 160 175 175 170 6 HWID Width -14 -25 -20 -30 0 0 0 0 7 VKEY Vert. Keystone 100 90 75 75 75 80 70 75 8 VWID Height 0 0 -20 -20 0 0 0 0 9 VLIN Vert. Linearity 0 0 0 0 0 0 0 0 10 TBPC Top/Bottom PC 0 0 0 0 0 20 0 0 11 SDBW Side Bow 0 0 0 0 -30 -30 -30 -30
VS-60111 WS-65311 WS-65411 SD HD SD HD SD HD -50 -50 -50 -50 -50 -50 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 150 160 160 150 160 150 -20 -30 0 0 0 0 75 75 90 65 90 65 -20 -20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -30 -30 -30 -30
WS-73411 SD HD -50 -50 0 0 0 0 0 0 230 200 0 0 80 90 0 0 0 0 0 0 -30 -30
DF (MENU-2-2-5-9-5) Item Abbr. 48/55/65/73 Inch 0 DFH -220 1 DFV -100
50/60 Inch -220 -140
Page 30
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
Adjustment Test Point Location
Test Points DT pin 3 - HV Adjust DT pin 6 - Ground DT pin 7 - 12 Volts DT pin 8 - ACL JA pin 17 - Main Picture (Y) JA pin 21 - Main Color (Pr) JB pin 1 - Sub Picture (Y) JB pin 3 - Sub Picture (Cr) TP6(R, G or B) - CRT Cathode
Page 31
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[HV Circuit] 1. HV Regulation
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal DC Voltmeter DT connector pins 3 & 6 -----------Video Signal Monoscope Video Input
Purpose: Symptom:
To set the CRT Anode voltage. Dark Picture
Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff. 1. Supply a video monoscope signal. 2. Set Contrast to maximum, and Brightness to mid position. 3. Connect a DC volt meter between pins 3 and 6 of the DT connector. (Positive lead to pin 3) 4. Activate the Conv-Misc Mode. 5. Select Item "1 HVOL" (screen goes black). 6. Adjust Item "1 HVOL" for 15.4V ±0.05V on the meter. 7. Save data and exit the Conv-Misc mode. 8. Confirm that the voltage does not change more than 0.15V. Note: This adjustment must be performed if E2RESET or Convergence E2RESET are activated.
CONVERGENCE MODE Activate ........MENU-2-2-5-9 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)
[Video Circuit] 2. Main/Sub Y Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal Video Input Oscilloscope JA Connector pin 17 JB Connector pin 1 ----------Color Bars
Purpose Symptom:
To set picture luminance Excess or insufficient brightness.
1. 2. 3. 4. 5. 6.
Supply a color bar signal to a Video Input (not an RF input). Select the color bar signal for both the main and sub pictures. Connect the oscilloscope to connector JA pin 17 (Main-Y). Activate the Adjustment Mode Select Item "3 YDRM" in the Main Matrix function. Adjust the data so the Main-Y signal is between 0.71 Vp-p max. and 0.66 Vp-p min. at JA pin 17. (If it cannot be adjusted within this range, set to the lower value) 7. Move the oscilloscope to connector JB pin 1 (Sub-Y). 8. Select Item "3 YDRS" in the Sub Matrix function. 9. Adjust the data to equal the MAIN-Y Gain (+0.0V -0.1V).
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Page 32
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[Video Circuit] 3. Main/Sub Color Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal Oscilloscope JA pin 21 JB pin 3 ----------Color Bars Video
Purpose:
To match the sub picture color to that of the main picture.
Symptom: Main and sub pictures colors differ.
Supply an NTSC signal to an External Video Input. Select the NTSC signal as the source for both the main and sub pictures. Connect an oscilloscope to connector JA pin 21 (Main PR). Activate the Adjustment mode. Select Item "2 COLM" in the Main Matrix Function. Adjust data so the PR signal is 0.71 Vp-p max. - 0.66 Vp-p min (If it cannot be adjusted within this range, set to the lower value) 7. Connect an oscilloscope to connector JB pin 3 (Sub PR). 8. Select item "2 COLS" in the Sub Matrix Function. 9. Adjust so Sub PR = Main PR.
1. 2. 3. 4. 5. 6.
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
[CRT Circuit] 4. CRT Cutoff
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
Purpose Symptom:
Oscilloscope TP6R, TP6G, TP6B -----50V/Div. 2msec/Div. None Video Input
To set the cutoff point for all three CRTs. Monochrome has a color tint, or incorrect brightness.
Note: Use the Expand mode (full screen) 1. Select an External Input with no signal. 2. Enter the Adjustment Mode, Video Chroma Function. 3. Press "1", automatically blanks the screen and sets COL to 0. 4. Set the data to the values given in the table below. 5. Connect the oscilloscope to TP6R. 6. Adjust the Red Screen VR so the black level is 170V, as shown below, or 198.5V ±1VDC using an DC Voltmeter. 7. Repeat Steps 4 and 5 to set the Blue and Green Screen VRs, using TP6G and TP6B. Note: White Balance must be performed after this adjustment.
Cutoff Preset VC Data Item Abbr Data 1 SCT 42 2 SBRT 20 3 SCON 7 4 RDRH 31 5 GDRH 41 6 BDRH 31 7 CTRH 31 8 CTGH 31 9 CTBH 31
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Page 33
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[CRT Circuit] 5. White Balance (NTSC)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal DC Voltmeter ---------------NTSC White Raster RF or Video
Purpose: Symptom:
To set the CRTs white level in the NTSC mode. Monochrome has a color tint.
Note: Use the "FORMAT" button to activate the Expand mode (full screen). 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Supply a full White Raster Signal Activate the Service Mode, Video Chroma Function. Set the data for Item "19 COL" to 0. Adjust Items "4 RDRH" and "6 BDRH" for optimum white at the center of the screen. Reduce the input luminance level to 25%. Adjust Items "7 CTRH" and "9 CTBH" for optimum white. Insert a Milliammeter in series with each CRT Cathode. The maximum allowable current for each CRT is given in the table below. Set the white raster to 100% and adjust Items "10 RDRL" and "12 BDRL" for optimum white at the center of the screen. Reduce the luminance level to 25%. Adjust Item "13 CTRL" and "15 CTBL" for optimum white. Set the data for Item "19 COL" back to 31.
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Maximum CRT Current ALL BUT 73" CRT CURRENT RED 580 uA GREEN 580 uA BLUE 580 uA
73" CURRENT 900 uA 900 uA 900 uA
[CRT Circuit] 6. White Balance (HD)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
Purpose Symptom:
To set the CRTs white level in the HD mode. Monchrome pictures have a color tint.
-----------------HD White Raster DTV Inputs
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Supply an HD Full White Raster signal to the DTV Inputs. Select the DTV Inputs (Input button) Activate the Adjustment mode, Video Chroma Function. Set Item "19 COL" to 0. Adjust Items "4 RDRH" and "6 BDRH" for optimum white at the center of the screen. Reduce the input signal luminance to 25%. Adjust Items "7 CTRH" and "9 CTBH" for optimum white. Set the white raster to 100% and adjust Items "10 RDRL" and "12 BDRL" for optimum white at the center of the screen. Reduce the luminance level to 25%. Adjust Item "13 CTRL" and "15 CTBL" for optimum white. Set the data for Item "19 COL" back to 31.
Page 34
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[Video Circuit] 7. Black Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------Monoscope Video Input
Purpose: Symptom:
To set the black level of the picture. Excess or insufficient brightness.
1. Supply a Monoscope signal to a Video Input. 2. Activate the Adjust Mode, Video Chroma Function. 3. Adjust Item "2 SBRT" so the 0% and 10% black levels on the gradation scale are the same. 4. Press ENTER to save data. 7. Exit the Service Mode.
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
40% 30% 20% 10% 50% 0% 0% 0%
60% 70% 80% 90%
GRADATION SCALE
[Video Circuit] 8. Sub Contrast
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal DC ma meter DT connector pins 7 & 8 ---------Grayscale RF Input
Purpose Symptom:
To set overall beam current to its' optimum level. Excess or insufficient contrast.
Note: Activate the Expand mode (full screen). 1. Supply a Grayscale signal to a RF Input. 2. Activate the Adjust Mode, Video Chroma Function. 3. Select Item "1 SCT", signal level automatically reduces. 4. Connect a 3ma DC meter between DT connector pins 7 and 8. Positive lead to pin 7. 5. Adjust Item "1 SCT" for 630µA ±10µA (690µa ±10µa on the WS-73411). 6. Remove the meter. 7. Save data and Exit the Service Mode.
CIRCUIT ADJUST MODE Activate ........ MENU-2-2-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Page 35
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[Focus Circuit] 9. Dynamic Focus Preset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal
Purpose:
To improve edge focus.
Symptom: Poor focus at the edges of the screen.
-----------------Monoscope
1. 2. 3. 4. 5. 6. 5.
Supply a Monoscope signal to a Video Input Activate the Convergence Mode. Select the DF Function under the Conv. Coarse Mode. Set Items "0 DFH" and "1 DFV" to the data values given in the DF Table. Press "6" to activate CONV-MISC Set "0 FPHS" and "1 DPHS" to data values given in the CONV-MISC Table. Exit the Conv. Mode.
Input Terminal Video Input
CONVERGENCE MODE Activate ........MENU-2-2-5-9 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)
DF (MENU-2-2-5-9-5) Item Abbr. 48/55/65/73 Inch 0 DFH -220 1 DFV -100 CONV MISC (MENU-2-2-5-9-6) Item Abbr. All Models 9 DPHS 1 10 DOFS 34
50/60 Inch -220 -140
[Video Circuit] 10. Lens Focus
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal
Purpose
To set the Lens position for optimum focus.
Symptom: Poor focus
Note: This adjustment must be done before Electrostatic Focus. Perform this adjustment for RED, GREEN, and BLUE monochrome pictures. 1. Supply a VIDEO signal (Monoscope). 2. Cover the Red and Blue Lens (producing a green raster). 3. Adjust the Green Lens for best focus at the center of the Monoscope pattern. Note: Attach a white paper to the screen center. During adjustment, observe the picture on the screen from inside for easier adjustment. 4. Repeat Steps 2 and 3 for the Red and Blue monochrome pictures.
------------------Monoscope
Input Terminal Video Input
Page 36
MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[CRT Circuit] 11. Electrostatic Focus & (Alignment Magnet)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------Monscope & Crosshatch Video Input
Purpose: Symptom:
To set electrostatic focus to the optimum point. Poor focus.
Note: This adjustment must be performed after the Sub Contrast adjustment. Alignment Magnet Adjustment (WS-55411, WS-656411 and WS-73411 Only) This adjustment must be performed before Static Focus Adjustment 1. Supply a Crosshatch with Center Dot signal to a Video Input. 2. Select a Green raster using the table below. 3. Roughly adjust Green Focus VR. 4. Rotate Green Focus VR CCW so the center dot is about 10mm diameter. 5. Adjust the Green 4 Pole Magnet for the roundest center dot. 6. Set the Green Focus VR for optimum focus. 7. Repeat the procedure with a Red raster and adjust the Red 4 Pole Magnet. 8. Use silicon to lock the magnets in place. Static Focus Adjustment (All Models) 1. Supply a Monoscope signal to a Video Input 2. Activate A/V Reset 3. Select Red, Green or Blue rasters using the table below. 3. Set the Red, Green and Blue Focus VRs for optimum focus at the top center of the picture..
Ra ste r Color Color Raster Red Green Blue
Selection Activation Code MENU-2-2-5-9-1 MENU-2-2-5-9-2 MENU-2-2-5-9-3
[On Screen Display] 12.Character Position
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
Purpose Symptom:
To position the character display horizontally. Incorrect display position
------------------Video Signal (HD/NTSC) ANT-A/DTV
1. 2. 3. 4.
Supply a Monoscope signal to the Video or RF Input. Select the Monoscope as the source for the main picture (Input button). Activate the Service Mode, HR Function. Use the Adjust Right/Left buttons to center the display horizontally. (A = B) 5. Save data and exit the Service Mode..
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MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[Conv/Defl] 13. Geometry Preset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------NTSC & HD Video & DTV 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 TV Control or Convergence circuits. Procedure In the Circuit Adjustment and Coarse Convergence Modes pre-set the data to the values given in the Tables below. DEFL JUNG LE (MENU-2-2-5-7) # Abbrev. 48" 50"& 60" 55" 65" 73" HD NT SC HD NT SC HD NT SC HD NT SC HD NT SC 1 HW ID 31 31 31 31 29 31 31 31 31 31 2 HKEY 31 31 31 31 25 24 31 24 31 31 3 EW PT 31 31 31 31 31 31 31 31 31 31 7 VHGT 28 40 30 37 17 15 44 40 28 40 8 VLIN 5 5 5 5 5 5 7 7 5 5 9 VSCN 0 0 0 0 0 0 0 0 0 0 18 VPOS 31 31 31 31 31 31 31 31 31 31
COARSE CONV GREEN (MENU-2-2-5-9-5) # Abbrev. WS-48311 VS-50111 WS-55311 WS-55411 VS-60111 WS-65311 WS-65411 WS-73411 SD HD SD HD SD HD SD HD SD HD SD HD SD HD SD HD 1 HSTA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 VSTA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 SKEW 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 TILT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 HWID 0 10 5 5 20 20 0 0 5 5 0 0 0 0 0 0 6 HLIN 0 10 15 15 0 0 10 10 15 15 10 10 10 10 10 10 7 SPCC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 HKEY 0 0 0 0 0 17 10 10 0 0 0 0 0 0 0 0 9 TBPC -200 -169 -150 -150 -180 -190 -200 -190 -150 -150 -200 -170 -200 -170 -200 -180 10 VKEY 0 14 0 20 0 14 15 10 0 20 15 10 15 10 15 10 11 VWID 11 17 40 30 20 30 30 30 40 30 30 30 30 30 30 30 12 VLIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 COARSE CONV RED (MENU-2-2-5-9-5) # Abbrev. WS-48311 VS-50111 WS-55311 SD HD SD HD SD HD 1 HSTA 50 50 50 50 50 50 2 VSTA 0 0 0 0 0 0 3 SKEW 0 0 0 10 0 0 4 TILT 0 0 0 0 0 0 5 HLIN -195 -170 -140 -125 -150 -170 6 HWID 22 30 5 0 0 0 7 VKEY -100 -85 15 -87 -70 -90 8 VWID 0 16 0 0 0 0 9 VLIN 0 0 0 0 0 0 10 TBPC -200 -169 -150 -150 20 20 11 SDBW 0 0 0 0 30 30 WS-55411 SD HD 50 50 0 0 0 0 0 0 -180 -170 0 0 -100 -95 0 0 0 0 20 20 30 30 VS-60111 SD HD 50 50 0 0 0 10 0 0 -140 -125 5 0 15 -87 0 0 0 0 -150 -150 0 0 WS-65311 SD HD 50 50 0 0 0 0 0 0 -150 -150 0 0 -90 -70 0 0 0 0 20 20 30 30 WS-65411 SD HD 50 50 0 0 0 0 0 0 -150 -150 0 0 -90 -70 0 0 0 0 20 20 30 30 WS-73411 SD HD 50 50 0 0 0 0 0 0 -220 -190 0 0 -100 -110 0 0 0 0 20 20 30 30 WS-73411 SD HD -50 -50 0 0 0 0 0 0 230 200 0 0 80 90 0 0 0 0 0 0 -30 -30
COARSE CONV BLUE (MENU-2-2-5-9-5) # Abbrev. WS-48311 VS-50111 WS-55311 WS-55411 VS-60111 WS-65311 WS-65411 SD HD SD HD SD HD SD HD SD HD SD HD SD HD 1 HSTA -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 2 VSTA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 SKEW 0 0 0 10 0 0 0 0 0 10 0 0 0 0 4 TILT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 HLIN 190 165 150 160 160 175 175 170 150 160 160 150 160 150 6 HWID -14 -25 -20 -30 0 0 0 0 -20 -30 0 0 0 0 7 VKEY 100 90 75 75 75 80 70 75 75 75 90 65 90 65 8 VWID 0 0 -20 -20 0 0 0 0 -20 -20 0 0 0 0 9 VLIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 TBPC 0 0 0 0 0 20 0 0 0 0 0 0 0 0 11 SDBW 0 0 0 0 -30 -30 -30 -30 0 0 -30 -30 -30 -30
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MODELS: VS-50111 / VS-60111 / WS-48311 / WS-55311 / WS-55411 / WS-65311 / WS-65411 / WS-73411
[Deflection Circuit] 14: Deflection Geometry Height & Width Adjustment
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------Monoscope (NTSC & HD) Video & DTV Inputs
Purpose: Symptom:
To set the height, width and linearity of the raster. Incorrect height, width and/or linearity.
Preliminary: 1. DO NOT change the initial values for "#8 VLIN" in the Defl. Jungle Function. 2. DO NOT exceed the following VHGT adjustment ranges: NTSC