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MITSUBISHI ELECTRIC
Service Manual
PROJECTION TELEVISION V21 / V21+ / V21++ CHASSIS
2002
V21 MODELS
V21+ MODELS
V21++ MODELS
WS-48511 WS-55511 WS-65511 WS-B55
WS-65611
WS-65611
WS-55711 WS-65711 WS-65712 WS-73711
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 Input · Power Usage : AC 120V, 60Hz : 275W (All but WS-73711) 300W (WS-73711 only) : VHF 54 ~ 470MHz UHF 470 ~ 806MHz : VHF/UHF 75 unbalanced 2 - NTSC 1 - ATV/QAM : [7 inches] : [9 inches] WS-73711 only : 32.0kV (at 0A) · Speakers (8 Ohms 10W) [WS-48511] : 2 - 5" round [WS-B55 / WS-55511 / WS-65511 / WS-65611] : 2 - 6" round [WS-55711 / WS-65711 / WS-73711] : 2 - 6.5" round, 2 - 3" tweeters [WS-65712] : 2 - 7" oval, 2 - 3" tweeters · Input Level : 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 type) 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 (BNC) Pr, Pb: 700mV 75 H, V: 3.0Vp-p 75 : VGA / R,G,B,V,H (15 pin D) · Output Level : VIDEO OUT JACK (RCA Type) 1.0Vp-p 75 unbalanced : AUDIO OUT JACK (RCA Type) -4.7dBm 4.7k unbalanced · Digital Interface : IEEE-1394 I/O Jacks : AC-3® Digtal Audio Output
· Frequency Range · Antenna Input
· CRT Size
· High Voltage
· Cabinet Weight and Demensions
Model WS-48511 WS-55511 WS-55711 WS-65511 WS-65611 WS-65711 WS-65712 WS-73711 WS-B55
Weight 175.5 lbs. 238 lbs. 266 lbs. 337 lbs. 336.5 lbs 356 lbs 251 lbs. 410 lbs 238 lbs.
Height 49" 50.3" 50.3" 61.9" 61.9" 61.6" 61.7" 65.7" 50.3"
Width Depth 44.5" 24" 50.6" 28" 50" 28" 59" 28.1" 59" 28.1" 58.2" 28" 58.2" 28.4" 65.2" 30" 50.6" 28"
· Weight and dimensions shown are approximate. · Design specifications are subject to change without notice. · AC-3® is a registered trademark of Dolby Laboratories, Inc.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904 Copyright © 2002 Mitsubishi Digital Electronics America, Inc. All Rights Reserved
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CONTENTS
INTRODUCTION ................................................................................................................................ 5 PRODUCT SAFETY NOTICE ............................................................................................................. 5 SAFETY PRECAUTIONS ................................................................................................................... 6 DISASSEMBLY WS-48511 Cabinet Front Disassembly ............................................................................................ 7 WS-48511 Cabinet Rear Disassembly ............................................................................................ 8 WS-B55 / WS-55511 / WS-65511 Cabinet Front Disassembly ........................................................ 9 WS-65611 Cabinet Front Disassembly .......................................................................................... 10 WS-55711 / WS-65711 / WS-73711 Cabinet Front Disassembly ................................................... 11 WS-B55 / WS-55511 / WS-65511 / WS-65611 / WS-55711 / WS-65711 / WS-73711 Cabinet Rear Disassembly ................................................................................................... 12 WS-65712 Cabinet Front Disassembly ......................................................................................... 13 WS-65712 Cabinet Rear Disassembly .......................................................................................... 14 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS Lenticular Screen and Fresnel Lens Removal ......................................................................... 15 WS-48511 ............................................................................................................................ 15 WS-B55 / WS-55511 / WS-65511 ........................................................................................ 16 WS-55711 / WS-65611 / WS65711 / WS-65712 / WS-73711 ............................................... 17 Lenticular Screen and Fresnel Lens Installation .................................................................... 18 SERVICING THE DIAMONDSHIELDSTM r DiamondShield TM Removal & Installation ...................................................................................... 19 CABINET SEPARATION (65 and 73 inch) WS-65712..................................................................................................................................... 20 WS-65511 ..................................................................................................................................... 21 WS-65611 / WS-65711 / WS-73711 .............................................................................................. 21 SERVICING PCBs Chassis and DM Module Removal ................................................................................................. 22 PCB Locations .............................................................................................................................. 23 Main Components Location........................................................................................................... 23 DM Module Main Components Location ........................................................................................ 24 CRT REPLACEMENT CRT Removal ................................................................................................................................ 25 CRT Installation ............................................................................................................................ 26 ELECTRICAL ADJUSTMENTS Test Equipment ............................................................................................................................. 28 Initial Setup ................................................................................................................................... 29 LED Indicator Diagnostics ............................................................................................................. 30 Remote Control Operational Mode ................................................................................................ 30 Circuit Adjustment Mode ............................................................................................................... 31 On Screen Display Position Adjustment Mode .............................................................................. 32 Convergence Adjustment Mode ..................................................................................................... 32 E2PROM Replacement ................................................................................................................. 34 Adjustment Items List ................................................................................................................... 34 Adjustment Test Points ................................................................................................................. 37 Adjustment Procedures ................................................................................................................ 38 Audio Circuit ........................................................................................................................ 38 High Voltage Regulation ....................................................................................................... 39 Main/Sub Y Level ................................................................................................................. 39 Side by Side Sub Picture Tint .............................................................................................. 40 Side by Side Sub Picture Color ............................................................................................ 40 Page 3
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 CRT Cutoff ........................................................................................................................... 41 White Balance (NTSC) ......................................................................................................... 41 White Balance (HD) ............................................................................................................. 42 Cb, Cr Offset ........................................................................................................................ 42 Black Level .......................................................................................................................... 43 Sub Contrast ....................................................................................................................... 43 Dynamic Focus Preset ........................................................................................................ 44 Lens Focus .......................................................................................................................... 44 Electrostatic Focus & Alignment Magnet Adjustment .......................................................... 45 On Screen Display Character Position ................................................................................. 45 Deflection/Convergence Geometry Presets .......................................................................... 46 Deflection Circuit Geometry Adjustments ............................................................................. 47 Convergence Circuit Geometry Adjustments ........................................................................ 48 Centering and Static Convergence ....................................................................................... 49 Coarse Convergence Adjustments ....................................................................................... 50 Fine Convergence Adjustments ............................................................................................ 51 CHIP PARTS REPLACEMENT ......................................................................................................... 52 REPLACEMENT PARTS Parts Ordering .............................................................................................................................. 53 Critical and Warranty Parts Designation........................................................................................ 53 Parts Tolerance Codes .................................................................................................................. 53 Quick Reference List .................................................................................................................... 54 Service Parts List.......................................................................................................................... 55 Screen Parts List .......................................................................................................................... 70 CIRCUITRY BLOCK DIAGRAMS Standby Supplies Regulator .......................................................................................................... 74 Switched Supplies Regulator ........................................................................................................ 75 DM Power Supply ......................................................................................................................... 76 Video / Color A/V Switch Circuit ................................................................................................... 77 Video / Color Signal Path .............................................................................................................. 78 Sync Signal Path .......................................................................................................................... 79 Deflection / HV .............................................................................................................................. 80 X-Ray Protect ............................................................................................................................... 80 Sound Circuit ................................................................................................................................ 81 Convergence ................................................................................................................................. 82 Control Circuitry ............................................................................................................................ 83
Section 2 .... Schematic Diagrams
SCHEMATIC DIAGRAMS Overall Block Diagram ................................................................................................................... 1 PCB-MAIN ..................................................................................................................................... 2 PCB-POWER................................................................................................................................. 3 PCB-TERMINAL ............................................................................................................................ 4 PCB-SIGNAL-1 (AV I/O) .................................................................................................................. 5 PCB-SIGNAL-2 (MICRO) ................................................................................................................. 6 PCB-SIGNAL-3 (VIDEO / CHROMA) ............................................................................................... 7 PCB-3DYC ..................................................................................................................................... 8 PCBs-CONV GEN / JUNGLE .......................................................................................................... 9 PCBs - CRT / CONTROL / SVM / DBF / DM POWER .................................................................. 10 PCB-2HDW-1 ............................................................................................................................... 11 PCB-2HDW-2) .............................................................................................................................. 12 PCB-2HDW-3 ............................................................................................................................... 13 PCB LAYOUT DIAGRAMS ............................................................................................................... 14
Page 4
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
INTRODUCTION
This service manual provides service instructions for the V21, V21+ and V21++ PTV chassis types. The specific models for each chassis type are listed below. Service personnel should read this manual thoroughly before servicing these chassis.
V21 Chassis WS-48511 WS-55511 WS-65511 WS-B55 V21+ Chassis WS-65611 V21++ Chassis WS-55711 WS-65711 WS-65712 WS-73711
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. on the schematic diagram and by bold Electrical components having such features are identified by shading 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: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (FRONT VIEW)
WS-48511
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. 2. 3. 4. Remove the Speaker Grille by pulling forward. Remove the Board Front by removing screws (a). Remove the screws (b) holding the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 7
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (REAR VIEW)
WS-48511
*Refer to the Parts List for Part Numbers
Rear Cabinet Disassembly
1. 2. 3. 4. Remove the Back Board by removing screws (a)and (b)). Remove 4 screws (c) securing the Board Slide. Remove 4 screws (d) holding each Board Shelf. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (e.g. speaker plugs, etc.). 5. Remove 3 screws (c) and screw (f). Then slide the Light Box Assembly from the cabinet.
Page 8
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (FRONT VIEW)
WS-B55 / WS-55511 / WS-65511
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. 2. 3. 4. Remove the Speaker Grille by pulling forward. Remove the Board Front by removing 4 screws (a). Remove the 4 screws (b) holding the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 9
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (FRONT VIEW)
WS-65611
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. 2. 3. 4. 5. Remove the Speaker Grille by pulling forward. Remove the Board Front by removing screws (b) Remove the Control Panel by removing two screws (a). Remove the four screws (c) holding the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 10
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (FRONT VIEW)
WS-55711 / WS-65711 / WS-73711
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. 2. 3. 4. 5. Remove the Speaker Grilles and Unit Front by pulling forward. Remove 2 screws (a) to remove the Control Panel. Remove the Board Front by removing 4 screws (b). Remove the 4 screws (c) holding the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 11
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (REAR VIEW)
WS-B55 / WS-55511 / WS-65511 / WS-65611/ WS-55711 / WS-65711 / WS-73711
*Refer to the Parts List for Part Numbers
Rear Cabinet Disassembly 1. Remove screws (a) holding the Back Board. 2. Remove 4 screws (a) holding the Board Slide 3. Remove the 4 screws (b) holding each Board Shelf. 4. Remove screw (e) and 3 screws (c) securing the Light Box Assembly. 5. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (e.g. speaker plugs, etc.). 6. Slide the Light Box out the rear of the Cabinet.
Page 12
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (FRONT VIEW)
WS-65712
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. 2. 3. 4. 5. 6. 7. Remove the Speaker Grille by pulling forward. Remove 2 screws (a) securing the Front Panel. Slide the Front Panel 1/2 inch to the right, then pull away from the TV. Remove 6 screws (b) to remove the Board Front. Unplug the LF connector. Remove the 4 screws (c) securing the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 13
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET DISASSEMBLY (REAR VIEW)
WS-65712
*Refer to the Parts List for Part Numbers
Rear Cabinet Disassembly 1. Remove screws (a) and (b) holding the Back Board. 2. Remove the 4 screws (c) holding each Board Slike. 3. Remove the 3 screws (c) and screw (e) securing the Light Box Assembly. 4. Disconnect cabling to the front panel (Control Panel, Speakers, Inputs, etc.) 4. Slide the Light Box out the rear of the Cabinet.
Page 14
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
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.
WS-48511 Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly shown in the Cabinet Disassembly procedure. 2. Remove the Top, Bottom and Side Screen Holders. 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 15
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
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.
WS-B55 / WS-55511 / WS-65511 Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly shown in the Cabinet Disassembly procedure. 2. Remove the screws (a) securing the Screen Holder. 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 drive, and remove the pressure sensitive double sided tape.
Page 16
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
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.
WS-55711 / WS-65611 / WS-65711 / WS-65712 / WS-73711 Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly 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.
WS-55711 WS-65611 WS-65711 WS-73711
WS-65712
Page 17
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
2. Lenticular Screen and Fresnel Lens Installation.
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 below. Refer to the Table below 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 below.
Model WS-48511 WS-B55 WS-55511 WS-55711 WS-65511 WS-65611 WS-65711 WS-65712 WS-73711
Screen Size 48" 55" 55" 55" 65" 65" 65" 65" 73"
Tape Length 41.76" 47.8" 56.5" 56.5" 56.5" 56.5" 56.5" 56.5" 63.51"
Page 18
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
SERVICING THE DIAMONDSHIELDTM 1. DiamondShieldTM Removal Procedure
The location of the DiamondShieldTM molding clips varies 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 19
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET SEPARATION
Mitsubishi 65 and 73 inch Projection TVs have been assembled in two pieces. These pieces may be separated for easier delivery and setup. The cabinet separation procedure requires two persons and varies between models.
WS-65712 Cabinet Separation Procedure
Figure 1 1. Remove the Speaker Grille by pulling forward. 2. Remove the two Front Cover screws (a). 3. To remove the Front Cover, slide to the right approximately 1/2", then pull away from the TV. Figure 2 4. Remove Screw (b) from the front board. 5. Disconnect the LF connector. Figure 3 6. Remove screw (c) on each side of the cabinet. 7. Remove the plastic cover on each side. Figure 4 8. Slide the top of the cabinet top forward. Figure 5 9. Carefully lift the cabinet top until the interlock tabs clear the cabinet bottom Figure 6 10. Carefully place the cabinet top on the floor as shown.
Figure 1
Figure 2
Figure 3
Figure 4 Figure 5
Figure 6
Page 20
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CABINET SEPARATION PROCEDURE (WS-65511 / WS-65611 / WS-65711 / WS-73711)
WS-65511 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-65511
WS-65611 / WS-65711 / WS-73711 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-65611 WS-65711 WS-73711
Page 21
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
Main Chassis Removal
Chassis and DM Module Removal
The chassis and DM Module can be removed as a single unit. 1. Undo the cable wire ties to the Front Panel, Speakers, CRTs, etc. 2. Remove screw (a) securing the Main Chassis [and screws (b) in model WS-65712] . 3. Release the Chassis Locks on each side of the chassis. 3. Slide the Chassis and DM Module out the rear of the unit. 5. Tilt upward to access the bottom of the main chassis. NOTE: If the chassis cannot be removed with the DM Module, due to insufficient cable length: 1. Perform Step 1 through 3 above. 2. Remove 1 screw (c). 3. Slide the chassis only out the rear of the unit. Page 22
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
PCB Locations
Main Components Location
Page 23
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
DM Module Main Components Location
E2P MODULE
DEMODULATOR DM POWER SUPPLY ATV TUNER
FLASH CARD SLOT COVER
Page 24
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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 HV Block, discharge by shorting the open end of the respective high voltage cable to chassis ground.
Note: Refer to the Cabinet Disassembly Procedures when performing steps 1 through 4. 1. 2. 3. 4. 5. 6. Remove the Speaker Grille, Front Board, and Screen Assy. Remove the Back Board. Remove the Anode Lead Wire from the CR Block. 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
Figure 5-2
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.
Page 25
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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
Note: The CRT fixing screws should not be loosened nor should they be removed. [Figure 5-4]
Figure 5-4
1. Carefully position the replacement CRT and fasten in place using 4 screws "d". [Figure 5-6]
Figure 5-6 Figure 5-5 Page 26
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 2. Install the Deflection Yoke on the CRT neck. [Figure 5-7] 3. Install the Lens that was removed in steps 8 and 9 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 5-8. b) Install the mounting screws. [Figure 5-1] 4. Connect 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 5-7
Figure 5-8
Adjustment procedures after replacing the CRT(s) · CRT Cut Off / White Balance Adjustment · Static Convergence Adjustment · Dynamic Convergence Adjustment
Page 27
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
ELECTRICAL ADJUSTMENTS
Note: Perform only the adjustments required. Do not attempt an alignment if proper equipment is not available.
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
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 28
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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", "1", "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-2-1-7-0) OPTION MENU Initial Power restore DTV Port
:OFF :Auto
B.
Default Settings
SETUP MAIN MENU DEFAULT SETTINGS CAPTIONS AUDIO SETTINGS Closed Captions With Mute Volume 30% CC Background Gray Bass 50% Digital Channel Guide On Treble 50% V-CHIP PARENT LOCK Balance 50% V-CHIP Off Surround Off TV Rating TV-PG Listen to Stereo () Enabled Level Sound FV-Fantasy Violence Off () Enabled TV Speakers D-Sexual Dialog On VIDEO SETTINGS () Enabled L-Adult Language () Enabled Contrast S-Sexual Situation 100% () Enabled Brightness V-Violence 50% () Enabled Sharpness Program not Rated 50% Movie Rating PG Color 50% V-CHIP LOCK BY TIME Tint 50% V-Chip Start Time 12:00 PM Color Temp. High V-Chip Stop Time 12:00 PM Video Noise Standard Lock By Time Image Type Video Lock by Time Off VSM Sharpness On Unlock Time N/A Video Mute On Front Button Lock Off Black Enhancement On TIMER PIP/POP Timer Off Source Ant A Ch 3 Set Day Everyday PIP Position Lower Right Set Time 12:00PM POP Position Right Half Device Ant-A Format Stretched Channel Ch-3 PIP/POP Format Dble. Window
Edit Setup Review () Enabled Antenna A () Enabled Antenna B () Enabled Antenna DTV () Enabled Input DTV () Enabled Input 1 () Enabled Input 2 () Enabled Input 3 () Enabled Input 4 () Enabled Input 5 () Enabled Component 1 () Enabled Component 2 () Enabled VGA Icon Position As above Transport Menu On Language English ANTENNA Antenna ANT A Memorize Channels Air Channel Ch-3 Memory Deleted CLOCK Clock Setting Manual Set Time 12:00 AM Set Day Monday
A/V Memory Contrast Brightness Sharpness Color Tint Color Temp. Video Noise Image Type Bass Treble Balance Surround Listen To Level Sound
A/V RESET DEFAULT SETTINGS (By Input) INPUTS Component Ant A/B Ant DTV Inp-DTV 1/2/3/4/5 1/2 Max. Max. Max. Max. Max. Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center High High High High High Standard N/A Standard Standard Standard Video N/A Video Video Video Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center OFF OFF OFF OFF OFF Stereo English N/A N/A N/A OFF OFF OFF OFF OFF
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VGA Max. Center N/A Center Center High N/A N/A Center Center Center OFF N/A OFF
1394 1/2/3 Max. Center Center Center Center High N/A N/A Center Center Center OFF N/A OFF
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
C. A/V Memory
Each of the external 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 initializes all A/V Memories. 2. The AV Reset in the user's menu initializes only the selected input's A/V Memory.
LED Indicator Diagnostics
The "Power ON LED" provides an indication of the sets operation, and the possible cause of a malfunction.
1. Initial Control Circuitry Check
Immediately after the TV is connected to an AC power source:
LED Indications Off Fast Blink for 70 sec. Fast Blink (doesn't stop) Slow Blink
Conditions After AC is applied After AC is applied After AC is applied Set is Off
Probable Cause Standy Power Supply or TV µPC not running Normal - DM µPC is booting up TV µPC is running, but DM failed to boot up Normal - Timer is set for Automatic Turn ON
2. 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 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.
3. Error Codes
The Error Code designations indicating a malfunction, or no malfunction, are listed below:
Error Code 12 21 22 23 24
Probable Cause Normal Operation - No Error Detected X-Ray Protect Short Protect Loss of Horizontal Deflection Loss of Vertical Deflection
Remote Control Operational Modes
in There are two Remote Hand Unit Operational Modes, "Standard" and "NetCommandTM". The Remote is initially in the "Standard" mode. The "NetCommandTM" mode is used when controlling Home Theater devices using NetCommandTM. To change the Remote Operational Mode:
· · · ·
Set the Remote to the TV Layer
Point the Remote away from the TV. To change to "NetcommandTM" ... Hold the "Power" button and press "9-3-5" in sequence. To change to "Standard" ... Hold the "Power" button and press "0-0-0" in sequence.
Page 30
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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 480i and 1080i modes. Video/Color adjustments must be performed in the 480i and 1080i modes, and data must be preset in the 480P (DVD) and VGA modes. Note: Set the Remote Operational Mode to "NetCommandTM". (Hold the "Power" button and press "9-3-5" in sequence.) This slows the remote's response and makes adjustments easier. When adjustments are complete, set the Remote to its' original Operational Mode.
A. Activating the Circuit Adjustment Mode
The current signal source determines if the activated Adjustment Mode is 480i or 1080i. 1. Select the signal source (480i or 1080i). 2. Press the "MENU" button on a remote hand unit. 3. Press the number buttons "2", "1", "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.
CHASSIS MODE ADJ ITEM
V21 0 1 SCT 42 480i
DATA SIGNAL
ABBREV.
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:
VC Adjustment Functions AUD SNTS
JNGL
MNTS
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/DOWN" buttons 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. Page 31
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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.
F. Toggle Between Reception Modes
Pressing "3" when in the Adjustment Mode VC Function toggles between 480i, 480p, 1080i and VGA. However data changes are not automatically saved. Press "ENTER" to save data before pressing "3".
On Screen Display Position Adjustment Mode
Activation
1. 2. Select 480i or 1080i source. Press MENU-2-1-8-8
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. Note: Before activating the Convergence mode, turn "Video Mute" Off. The internal crosshatch pattern will not be displayed with "Video Mute" On, only a blue background is displayed.
A. Convergence Mode Activation
1. 2. Press MENU-2-1-5-9 When the Convergence Mode is activated, this display appears on a Green Crosshatch.
B. Selecting the HD or SD Mode
1. 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. Activating the HD mode when no HD signal is available · Press the "DEVICE" button. · Use the "UP-DOWN-RIGHT-LEFT" direction buttons to select the ANT-DTV, then press "ENTER". · Press "MENU-0-1-5-9-5" in sequence to activate the Coarse Green HD Convergence mode.
2.
3.
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 "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.
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
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, 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.
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.
V21 CONV FINE V13 VERTICAL DATA H-4 GREEN SD HORIZ. DATA
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: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
E2PROM Replacement
IC7A01 stores some adjustment data. After replacing the IC, set the data to the values given in the following tables. If good performance is not obtained, perform the Adjustments Procedures given in the Notes column.
List of Adjustment Items.
Function Display NO. Abbrev. 1 SCT 2 SBRT 3 SCOL 4 STIN 5 SCON 6 RDRH 7 GDR 8 BDRH 9 CTRH 10 CTGH 11 CTBH 12 RDRL 13 BDRL 14 CTRL 15 CTGL 16 CTBL 17 SCTL 18 SBRL 19 SCLL 20 SCNL 23 COL 56 VM 60 CRO1 61 CBO1 64 R-YR 65 R-YB 66 G-YR 67 G-YB 69 RON 70 GON 71 BON Adjustment Description Picture Gain (H-Temp) Sub Brightness (H-Temp) Sub Color (H-Temp) Sub Tint Sub Contrast (H-Temp) R-Drive (high) G-Drive B-Drive (high) R-Cutoff (high) G-Cutoff (high) B-Cutoff (high) R-Drive (low) B-Drive (low) R-Cutoff (low) G-Cutoff (low) B-Cutoff (low) Picture Gain (L-Temp) Sub Brightness (L-Temp) Sub Color (L-Temp) Color Gain (L-Temp) Color Gain VM level CR Offset 1 CB Offset 1 R-Y gain of R-Y R-Y gain of B-Y G-Y gain of R-Y G-Y gain of b-y Red On Green On Blue ON Data Range 0~63 0~63 0~15 0~15 0~15 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~15 0~15 0~63 0~3 0~15 0~15 0~15 0~15 0~15 0~15 0~1 0~1 0~1 Initial Data 480p 1080i VGA 42 42 42 26 26 26 5 3 3 10 15 7 3 3 3 30 30 30 35 35 35 56 56 56 25 25 25 55 55 55 20 20 20 35 35 35 40 40 40 25 25 25 55 55 55 15 15 15 42 42 42 26 26 26 2 2 2 0 0 0 31 31 31 2 2 0 7 7 7 7 7 7 7 7 7 2 2 2 8 8 8 11 11 11 1 1 1 1 1 1 1 1 1 Notes Sub Contrast Black Level Preset " " White Balance Preset White Balance " Preset White Balance " " " " " Preset User User " " Cb Cr Offset Cb Cr Offset Preset " " " " " "
480i 42 26 7 6 2 30 35 40 25 55 40 35 40 25 55 15 42 26 2 0 31 2 10 10 2 10 10 6 1 1 1
JNGL Function (Jungle)
Display No. Abbrev. 1 HWID 2 HKEY 3 EWPT 4 EWCT 5 EWPB 6 EWCB 7 VHGT 8 VLIN 9 VSCN 14 H-POS 20 V-POS Adjustment Description Horizontal Width Horizontal Keystone EW-PCC on top Corner Pin (top) EW-PCC on bottom Corner Pin (bottom) Vertical Height Vertical Linearity Vertical S-Correction Horizontal Position Vertical Position Data Range 0~63 0~63 0~63 0~63 0~63 0~63 0~63 0~15 0~15 0~63 0~63 48" Data HD SD 20 16 38 43 23 22 32 34 26 31 29 35 23 30 9 9 0 0 30 37 31 31 55" Data HD SD 38 33 38 43 23 22 32 34 26 31 29 35 23 27 9 9 0 0 30 37 31 31 65" Data HD SD 35 31 33 31 25 22 37 34 27 31 35 35 25 27 9 9 0 0 30 37 31 31 73" Data HD SD 36 33 31 33 22 24 31 32 27 32 31 34 32 34 9 9 0 0 30 37 31 31
IC4A01 Notes Width Preset " " Height Preset " " "
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
MNTS Function (Main Decoder)
Function Display Item # Abbrev. 1 TNTM 2 COLM 3 YDRM 4 VPDM 5 UPDM Adjustment Description Main Tint Main Color Main Gain Control Pr Pedestal Adjustment Pb Pedestal Adjustment Data Range 0~63 0~63 0~31 0~15 0~15 Initial Data RF Non RF 24 24 17 17 5 5 7 7 7 7
IC2E00 Notes Preset " Main Y Level
SNTS Function (Sub Decoder)
Function Display Item # Abbrev. 1 TNTS 2 COLS 3 YDRS 4 VPDS 5 UPDS Adjustment Description Sub Tint Sub Color Sub Gain Control Pr Pedestal Adjustment Pb Pedestal Adjustment Data Range 0~63 0~63 0~31 0~15 0~15 Initial Data 26 18 5 7 7
IC2H00 Notes Preset " Sub Y Level " "
AUDIO Function
Function Display Adjustment Item # Abbrev. Description 1 INP Input Level Alignment 2 WDE Wideband Separator Align. 3 SPC Spectral Separator Align. Data Range 0~15 0~31 0~31 Initial Data 8 3 3
IC3A01 Notes Input Level Separation "
OSD Horizontal Centering
Abbrev. OSDSD Description SD OSC Horizontal Position
(MENU-2-1-8-8) Data Initial Range Data 0~960 120
DYNAMIC FOCUS
(MENU-2-1-5-9) Item Abbrev. Data Description Number Name SD&HD 1 DFH Dynamic Focus Horizontal -500 2 DFV Dynamic Focus Vertical -100
(MENU-2-1-5-9-6) Item Abbrev. Data Notes Number Name SD HD 160 1 HVOL HV Adj. 2 VCNT 29 29 Preset 3 VSTR 0 0 " 4 VOFS 25 0 " 5 STLN 45 34 " 6 FPHS 288 288 " 7 CPHS 15 15 " 8 HOFS 22 22 " 9 DPHS 0 0 " 10 DOFS 51 51 " 11 TPHS 34 36 " 12 TPVD 25 39 " 13 ODEV 200 125 " 14 HRTC 1 1 " 15 DRTC 1 1 " 16 DAC 1 1 " 17 EPWP 0 0 " 18 SCRL 25 25 " 19 SDEL 600 600 " 20 FDEL 3 3 " * Do not change "1 HVOL" if it has been previously set.
CONV MISC
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
CONV GREEN Items
(MENU-2-1-5-9-5) 48" Data 55" Data 65" Data 73" Data No. Abbrev. Description Name SD HD SD HD SD HD SD HD 1 HSTA* Horizontal Position 0 0 0 0 0 0 0 0 2 VSTA* Vertical Position -15 0 -15 0 -15 0 -20 0 3 SKEW Skew (Y axis rotation) 0 0 0 0 0 0 0 0 4 TILT Tilt (X axis rotation) 0 0 0 0 0 0 0 0 5 HWID Horisontal Width 30 30 30 30 30 30 20 20 6 HLIN Horizontal Linearity 0 0 -15 -10 -10 -20 -10 -10 7 SPCC Side Pin Cushion Correction 0 0 0 0 0 0 0 0 8 HKEY Horizontal Keystone 0 0 0 0 0 0 0 0 9 TBPC Top/Bottom PC Correction -150 -150 -200 -190 -200 -170 -220 -180 10 VKEY Vertical Keystone 15 10 15 10 0 0 10 10 11 VWID Vertical Height 0 0 0 0 0 0 0 0 12 VLIN Vertical Linearity. 0 0 0 0 0 0 0 0 *HSTA and VSTA must not exceed ±200 (MENU-2-1-5-9-5) 48" Data 55" Data 65" Data 73" Data SD HD SD HD SD HD SD HD 50 50 50 50 50 50 50 50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -190 -190 -180 -170 -150 -150 -220 -190 0 -10 0 0 10 10 10 10 -120 -110 -100 -95 -90 -70 -100 -110 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 20 20 20 20 20 20 20 30 30 30 30 30 30 50 30
CONV RED Items
No. Abbrev. Description Name 1 HSTA Horizontal Position 2 VSTA Vertical Position 3 SKEW Skew (Y axis rotation) 4 TILT Tilt (X axix rotation) 5 HLIN Horixontal Linearity 6 HWID Horizontal Width 7 VKEY Vertical Keystone Correction 8 VWID Vertical Height 9 VLIN Vertical Linearity 10 TPPC Top/Bottom PC Correction 11 SDBW Horizontal Side Bow *HSTA and VSTA must not exceed ±200
CONV BLUE Items
48" Data No. Abbrev. Description Name SD HD 1 HSTA Horizontal Position -50 -50 2 VSTA Vertical Position 0 0 3 SKEW Skew (Y axis rotation) 0 0 4 TILT Tilt (X axix rotation) 0 0 5 HLIN Horixontal Linearity 200 190 6 HWID Horizontal Width 0 -30 7 VKEY Vertical Keystone Correction 130 80 8 VWID Vertical Height 0 0 9 VLIN Vertical Linearity 0 0 10 TPPC Top/Bottom PC Correction 0 -20 11 HSBW Horizontal Side Bow -30 -30 *HSTA and VSTA must not exceed ±200 55" Data SD HD -50 -50 0 0 0 0 0 0 175 170 0 -10 90 65 0 0 0 0 0 0 -30 -30
(MENU-2-1-5-9-5) 65" Data 73" Data SD HD SD HD -50 -50 -50 -50 0 0 0 0 0 0 0 0 0 0 0 0 160 150 230 200 0 -10 -20 -20 70 75 80 90 0 0 0 0 0 0 0 0 0 -20 -20 0 -30 -30 -30 -30
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55
Adjustment Test Point Location
Test Points DT pin 3 - HV Adjust DT pin 6 - Ground DT pin 7 - 12 Volts DT pin 8 - ACL EA pin 1 - Sub Picture (Y) EA pin 15 - Main Picture (Y) EB pin 5 - POP (Cr) ST pin 12 - Left Audio ST pin 16 - Right Audio TP6(R, G or B) - CRT Cathode
Page 37
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 Purpose: Check the input signal level to the MCS circuit [Audio Circuit] 1. MCS Input Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Oscilloscope Connector ST pins 16&12 -----50mV/Div RF Stereo 300 Hz modulation
Symptom: Distorted sound during a stereo broadcast.
Input Terminal RF Input
1. Supply an RF MCS signal to the Ant A input, 300 Hz at 100% modulation (25 kHz deviation) for right and left channels. 2. Connect the oscilloscope to connector ST pin 16 (Right Audio). 3. Enter the Adjustment Mode and select the Audio Function. 4. Verify that the Audio Function items are set to the data values given the table below. 5. Set the data for Item "1 INP" for 1.56 Vp-p ±0.06V. (550mv ±10mv rms) 6. Connect the oscilloscope to connector ST pin 12 (Left Audio). 7. Confirm that the left audio level at pin 12 of the ST connector is 1.56 Vp-p ±0.06V (550mv ±20mv rms). Note: Adjustment 2 (Stereo Separation) must be performed after this adjustment)
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjus t Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
AUDIO Function Item # Abbrev. 1 INP 3 W DE 4 SPC
Data 8 3 3
[Audio Circuit] 2. Separation
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Oscilloscope Conector ST pin 16 -----10mV/Div RF Stereo
Purpose
Check stereo separation
Symptom: Poor stereo separation
Note: This adjustment must follow Adjustment 1 (Input Level) 1. Supply a RF Stereo Signal (dual tone stereo) to the Ant. A input. · Left Channel = 300 Hz modulation · Right Channel = no modulation 2. Connect the oscilloscope to connector ST pin 16 (Right Audio). 3. Enter the Adjustment Mode and select the Audio Function. 4. Set the data for Item "3 WDE" for minimum 300 Hz signal. 5. Change the modulation frequency to 3kHz. 6. Adjust the data for Item "4 SPC" for minimum 3kHz signal.
Input Terminal RF Input
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Page 38
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 To set the CRT Anode voltage. Purpose: [HV Circuit] 3. 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
Symptom:
Dark Picture
Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff. 1. Supply a video monoscope signal. 2. Sent 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 ±0.1V 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-2-1-5-9 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] 4. Main/Sub Y Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal Oscilloscope EA connector pins 15 & 1 ----------Color Bars Video Input
Purpose Symptom:
To set picture luminance Excess or insufficient brightness.
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 EA pin 15. Activate the Adjustment Mode Select Item "3 YDRM" in the MNTS function. Adjust the data for 0.7 Vp-p max. - 0.67 Vp-p min. at EA pin 15. (If it cannot be adjusted within this range, set to the lower value) 7. Move the oscilloscope to EA pin 1. 8. Select Item "3 YDRS" in the Sub Matrix function. 9. Adjust the data to equal the MAIN-Y Gain (+0.01V -0.04V).
1. 2. 3. 4. 5. 6.
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 Purpose: To match the sub picture color to that of the main picture. [Video Circuit] 5. Side by Side Sub Picture Tint
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal ------------------NTSC
Symptom: Main and sub pictures colors differ.
1. 2. 3. 3. 4. 5.
Supply an NTSC signal to an External Video Input. Select the NTSC signal as the source for both the main and sub pictures. Activate Side by Side POP Activate the Adjustment mode. Select Item "1 TNTS" in the SNTS Function. Adjust data to match the sub picture color to that of the main picture. (If "1 TNTS" range is short, adjust Items "4 VPDS" and "5 UPDS")
Input Terminal Video
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
[Video Circuit] 6. Side by Side Sub Color
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Oscilloscope EB connector pin 5 -----200mV/div 20usec/div Color Bars
Purpose
To set the sub picture color level.
Symptom: Main and sub pictures color levels differs.
Note: Let the set run for at least one minute before making this adjustment. 1. Supply a color bar signal. 2. Select the color bar signal as the source for both the main and sub picture. 3. Connect an oscilloscope to pin 5 of the EB connector (Cr signal). 4. Activate the Side by Side mode. 5. Activate the Service Mode 6. Select Item "2 COLS" in the SNTS function. 7. Adjust data so the amplitude of the Sub signal equals that of the main signal.
Input Terminal Video Input
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Page 40
MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 [CRT Circuit] Purpose: To set the cutoff point for all three CRTs. 7. CRT Cutoff
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
Symptom:
Monochrome has a color tint, or incorrect brightness.
Oscilloscope TP6R, TP6G, TP6B -----50V/Div. 2msec/Div. None Video Input
Note: Use the Expand mode (full screen) 1. Select an External Input with no signal. 2. Enter the Adjustment Mode, VC 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 180V, as shown below, or 186V ±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 26 5 SCON 2 6 RDRH 30 7 GDR 35 8 BDRH 40 9 CRTH 25 10 CTGH 55 11 CTBH 20
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
[CRT Circuit] 8. White Balance (NTSC)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal DC ma meter ---------------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, VC function. Set the data for Item "23 COL" to 0. Adjust Items "6 RDRH" and "8 BDRH" for optimum white at the center of the screen. Reduce the input luminance level to 25%. Adjust Items "9 CTRH" and "11 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 "12 RDRL" and "13 BDRL" for optimum white at the center of the screen. Reduce the luminance level to 25%. Adjust Item "14 CTRL" and "16 CTBL" for optimum white. Set the data for Item "23 COL" back to 31.
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
Maximum CRT Current 55"& 65" CRT CURRENT RED 580 uA GREEN 580 uA BLUE 580 uA
73" CURRENT 900 uA 900 uA 900 uA
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55 Purpose: To set the CRTs white level in the HD mode. [CRT Circuit] 9. White Balance (HD)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal
Symptom: Monchrome pictures have a color tint.
-----------------HD White Raster
1. 2. 3. 4. 5.
Input Terminal DTV Inputs
Supply an HD Full White Raster signal to the DTV Inputs. Select the DTV Inputs (Input button) Activate the Adjustment mode, VC Function. Set Item "23 COL" to 0. Adjust Items "6 RDRH" and "8 BDRH" for optimum white at the center of the screen. 6. Reduce the input signal luminance to 25%. 7. Adjust Items "9 CTRH" and "11 CTBH" for optimum white. 8. Set the data for Item "23 COL" back to 31.
CIRCUIT ADJUST MODE Activate ........ MENU-2-1-5-7 Function .................AUDIO Item No. .................VIDEO Adjust Data ...........ADJUST Save Data .... .........ENTER Exit ..............MENU (twice)
[CRT Circuit] 10. Cb, Cr Offset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal ------------------White Raster (HD&NTSC)
Purpose
To set Cb and Cr