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MITSUBISHI ELECTRIC
Service Manual
PROJECTION TELEVISION V19 / V19+ CHASSIS
V19 MODELS
V19+ MODELS
WS-55859 WS-65869
WS-55909 WS-65909 WS-73909
WS-65869
CAUTION: Before servicing this chassis, it is important that the service person read the "SA.ETY PRECAUTIONS" and "PRODUCT SA.ETY NOTICE" contained in this manual.
Power Input Power Usage .requency Range Antenna Input : AC 120V, 60Hz : 300W
SPECI.ICATIONS
Cabinet Dimensions
: VH. 54 ~ 470MHz UH. 470 ~ 806MHz : VH./UH. 75 unbalanced 2 - NTSC 1 - ATV/QAM : [7 inches] : [9 inches] WS-73909 only : 32.0kV (at 0A) : [WS-55859]] 5" round type, full range 2 pcs. (8 10W) : [WS-65869] 6" round type, full range 2 pcs. (8 10W) : [WS-55909 / WS-65909 / WS-739090] 5" round type, full range 2 pcs. (8 10W) 2" round type, tweeter 2 pcs. (8 10W) : : : : : [WS-55859 250 lbs [WS-55909] 256 lbs [WS-65869] 326 lbs [WS-65909] 348 lbs [WS-73909] 405 lbs Output Level Input Level
: : : : : :
[Model] (H)x(W)x(D) [WS-55859] 50.3"x50.6"x27.8" [WS-55909] 51.4"x46.9"x28.1" [WS-65869] 61.9"x59"x28.1" [WS-65909] 61.5"x58.2"x28.3" [WS-73909] 65.7"x65.2"x29.8"
CRT Size High Voltage Speaker
: 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) : VIDEO OUT JACK (RCA Type) 1.0Vp-p 75 unbalanced : AUDIO OUT JACK (RCA Type) -4.7dBm 4.7k unbalanced : IEEE-1394 I/O Jacks : AC-3 Digtal Audio Output
Weight
Digital Interface
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 © 2001 Mitsubishi Digital Electronics America, Inc. All Rights Reserved
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CONTENTS
INTRODUCTION ................................................................................................................................ 5 PRODUCT SA.ETY NOTICE ............................................................................................................. 5 SA.ETY PRECAUTIONS ................................................................................................................... 6 DISASSEMBLY Cabinet Disassembly (.ront View) .............................................................................................. 7 WS-55859 .............................................................................................................................. 7 WS-65869 .............................................................................................................................. 8 WS-55909 / WS-65909 / WS-73909 ...................................................................................... 9 Cabinet Disassembly (Rear View) ............................................................................................. 10 WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 ............................................. 10 SERVICING THE LENTICULAR SCREEN AND .RESNEL LENS Lenticular Screen and .resnel Lens Removal ......................................................................... 11 WS-55859 ............................................................................................................................ 11 WS-55909 / WS-65869 / WS-65909 / WS-73909 ................................................................. 12 Lenticular Screen and .resnel Lens Installation .................................................................... 13 SERVICING THE DIAMONDSHIELDSTM r DiamondShield TM Removal & Installation ...................................................................................... 14 SERVICING PCBs Chassis Removal .......................................................................................................................... 15 PCB Locations .............................................................................................................................. 16 Main Components Location ........................................................................................................... 16 DM Module Main Components Location ........................................................................................ 17 CRT REPLACEMENT CRT Removal ................................................................................................................................ 18 CRT Installation ............................................................................................................................ 19 ELECTRICAL ADJUSTMENTS Test Equipment ............................................................................................................................. 21 Initial Setup ................................................................................................................................... 22 LED Indicator Diagnostics ............................................................................................................. 23 Remote Control Operational Mode ................................................................................................ 23 Circuit Adjustment Mode ............................................................................................................... 24 On Screen Display Position Mode ................................................................................................ 25 Convergence Adjustment Mode ..................................................................................................... 25 E2PROM Replacement ................................................................................................................. 27 Adjustment Items List ................................................................................................................... 27 Adjustment Test Points ................................................................................................................. 30 Adjustment Procedures ................................................................................................................ 31 Audio Circuit ........................................................................................................................ 31 High Voltage Regulation ....................................................................................................... 32 Main/Sub Y Level ................................................................................................................. 32 Side by Side Sub Picture Tint .............................................................................................. 33 Side by Side Sub Picture Color ............................................................................................ 33 CRT Cutoff ........................................................................................................................... 34 White Balance (NTSC) ......................................................................................................... 34 White Balance (HD) ............................................................................................................. 35 Cb, Cr Offset ........................................................................................................................ 35
Page 3
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 Black Level .......................................................................................................................... 36 Sub Contrast ....................................................................................................................... 36 Dynamic .ocus Preset ........................................................................................................ 37 Lens .ocus .......................................................................................................................... 37 Electrostatic .ocus & Alignment Magnet Adjustment .......................................................... 38 On Screen Display Character Position ................................................................................. 38 Deflection/Convergence Geometry Presets .......................................................................... 39 Deflection Circuit Geometry Adjustments ............................................................................. 40 Convergence Circuit Geometry Adjustments ........................................................................ 41 Centering and Static Convergence ....................................................................................... 42 Coarse Convergence Adjustments ....................................................................................... 43 .ine Convergence Adjustments ............................................................................................ 44 CHIP PARTS REPLACEMENT ......................................................................................................... 45 REPLACEMENT PARTS Parts Ordering .............................................................................................................................. 46 Critical and Warranty Parts Designation ........................................................................................ 46 Parts Tolerance Codes .................................................................................................................. 46 Quick Reference List .................................................................................................................... 47 Service Parts List .......................................................................................................................... 48 Screen Parts List .......................................................................................................................... 59 CIRCUITRY BLOCK DIAGRAMS Standby Supplies Regulator .......................................................................................................... 61 Switched Supplies Regulator ........................................................................................................ 62 DM Power Supply ......................................................................................................................... 63 Video / Color A/V Switch Circuit ................................................................................................... 64 Video / Color Signal Path .............................................................................................................. 65 Sync Signal Path .......................................................................................................................... 66 Deflection / HV .............................................................................................................................. 67 X-Ray Protect ............................................................................................................................... 67 Sound Circuit ................................................................................................................................ 68 Convergence ................................................................................................................................. 69 Control Circuitry ............................................................................................................................ 70
Section 2 .... Schematic Diagrams
SCHEMATIC DIAGRAMS Overall Block Diagram ................................................................................................................... 1 PCB-MAIN ..................................................................................................................................... 2 PCB-POWER ................................................................................................................................. 3 PCB-TERMINAL ............................................................................................................................ 4 PCB-SIGNAL-1 (MICRO) ................................................................................................................. 5 PCB-SIGNAL-2 (AV I/O) .................................................................................................................. 6 PCB-SIGNAL-3 (VIDEO / CHROMA) ............................................................................................... 7 PCB-3DYC ..................................................................................................................................... 8 PCBs-CONV GEN / JUNGLE .......................................................................................................... 9 PCBs - CRT / CONTROL / SVM / DB. / DM POWER .................................................................. 10 PCB-2HDW-1 ............................................................................................................................... 11 PCB-2HDW-2) .............................................................................................................................. 12 PCB-2HDW-3 ............................................................................................................................... 13 PCB LAYOUT DIAGRAMS ............................................................................................................... 14
Page 4
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
INTRODUCTION
This service manual provides service instructions for PTV Models WS-55859 and WS-65869 which use the V19 chassis, and PTV Models WS-55909, WS-65909 and WS-73909 which use the V19+ chassis. Service personnel should read this manual thoroughly before servicing these chassis. This service manual includes: 1. Assembly and disassembly instructions for the front and rear cabinet components. 2. Servicing of the Lenticular Screen and .resnel 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 SA.ETY 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: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
SA.ETY PRECAUTIONS
NOTICE: WARNING: 1. 2. 3. Observe all cautions and safety related notes located inside the receiver cabinet and on the receiver chassis. 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. 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).
2. Hot Check ...Use the circuit shown below to perform the hot check test.
Page 6
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CABINET DISASSEMBLY (.RONT VIEW)
WS-55859
*Refer to the Parts List for Part Numbers
1a. .ront Cabinet Disassembly
1. 2. 3. 4.
Remove the Speaker Grille by pulling forward. Remove the Board .ront 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 7
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CABINET DISASSEMBLY (.RONT VIEW)
WS-65869
*Refer to the Parts List for Part Numbers
1b. .ront Cabinet Disassembly
1. 2. 3. 4. 5.
Remove the Speaker Grille by pulling forward. Remove the Board .ront by removing screws (b) Remove the Control Panel by removing two screws (a). Remove the four screws (b) holding the Screen Assembly. Lift the Screen Assembly up and away from the cabinet.
Page 8
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CABINET DISASSEMBLY (.RONT VIEW)
WS-55909 / WS-65909 / WS-73909
*Refer to the Parts List for Part Numbers
1c. .ront Cabinet Disassembly
1. 2. 3. 4. 5.
Remove the Speaker Grille by pulling forward. Remove 2 screws (a) to remove the Control Panel. Remove the Board .ront 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 9
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CABINET DISASSEMBLY (REAR VIEW)
*Refer to the Parts List for Part Numbers
WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
2b. 1. 2. 3. 4.
Rear Cabinet Disassembly Remove screws (a) holding the Back Board. Remove the 4 screws (b) holding each Board Shelf. Remove the 4 screws (c) securing the Light Box Assembly. Slide the Light Box out the rear of the Cabinet.
Page 10
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
SERVICING THE LENTICULAR SCREEN AND .RESNEL LENS
CAUTION: Wear gloves when handling the Lenticular Screen and .resnel Lens. This prevents cuts and finger prints. Do not place .resnel Lens in the sun. This may cause fire and heat related injuries.
WS-55859 1a. Lenticular Screen and .resnel 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 .resnel Lens from the Screen .rame. Note: When separating the Lenticular Screen from the .resnel 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 11
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
SERVICING THE LENTICULAR SCREEN AND .RESNEL LENS
CAUTION: Wear gloves when handling the Lenticular Screen and .resnel Lens. This prevents cuts and finger prints. Do not place .resnel Lens in the sun. This may cause fire and heat related injuries.
WS-55909 / WS-65869 / WS-65909 / WS-73909 1b. Lenticular Screen and .resnel Lens Removal
1. Remove the screen assembly shown in the Cabinet Disassembly procedure. 2. Remove the Screen .rame top section by removing 4 screws (a). 3. Carefully grasp the Lenticular Screen and .resnel Lens combination and pull upward and out of the Screen .rame Assembly. Note: When separating the Lenticular Screen from the .resnel 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 12
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
SERVICING THE LENTICULAR SCREEN AND .RESNEL LENS
2. Lenticular Screen and .resnel Lens Installation.
Note: Store the Lenticular Screen and .resnel Lens in a cool dry place. High humidity may deform the Lenticular Screen and .resnel Lens. 1. Apply double coated tape (Part # LENS-TAPE) along the top front edge of the .resnel Lens as shown below. Refer to the Table below for proper tape length. 2. Place the .resnel Lens on top of the Lenticular Screen and apply pressure at the top edge to bond them together as shown below.
Mode l W S-55859 W S-55909 W S-65869 W S-65909 W S-73909
Scree n Size 55" 55" 65" 65" 73"
Ta pe Le ngth 47.8" 47.8" 56.5" 56.5" 63.5"
Page 13
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
SERVICING THE DIAMONDSHIELD 1. DiamondShield 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 DiamondShield to prevent finger prints.
Top & Bottom Molding Clips
Side Molding Clips
1. Gently insert a small screwdriver between the DiamondShield and one end of the clip to pry the clip loose.
1. Gently insert a small screwdriver between the DiamondShield 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. DiamondShield Installation Procedure
*(See the Parts List for DiamondShield part numbers) To install the DiamondShieldTM, reverse the above Removal Procedure.
Page 14
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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 .ront Panel, Speakers, CRTs, etc. 2. Remove 3 screws (a) securing the Main Chassis. 3. Unlatch the two chassis locks on the front of the chassis. 4. 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 3 screws (b). 3. Slide the chassis only out the rear of the unit.
Page 15
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
PCB Locations
Main Components Location
Page 16
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
DM Module Main Components Location
E2P MODULE
DEMODULATOR DM POWER SUPPLY ATV TUNER
.LASH CARD SLOT COVER
Page 17
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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, .ront 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. [.igure 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. [.igure 5-2] 8. Remove the Deflection Yoke from the neck of the CRT. [.igure 5-7]
.igure 5-1
.igure 5-2
Note: The 4 spring-loaded screws shown in .ig 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 18
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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. [.igure 5-3]
.igure 5-3 Note: The CRT fixing screws should not be loosened nor should they be removed. [.igure 5-4]
.igure 5-4
1. Carefully position the replacement CRT and fasten in place using 4 screws "d". [.igure 5-6]
.igure 5-6 .igure 5-5 Page 19
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 2. Install the Deflection Yoke on the CRT neck. [.igure 5-7] 3. Install the Lens that was removed in steps 8 and 9 of Removal Of The CRT. [ .igures 5-1 and 5-2 ] a) Position the Lens so that the Label faces the direction shown in .igure 5-8. b) Install the mounting screws. [.igure 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 .lyback Transformer. 7. Re-clamp the Lead Wire in its original position.
.igure 5-7
.igure 5-8 Adjustment procedures after replacing the CRT(s) CRT Cut Off / White Balance Adjustment Static Convergence Adjustment Dynamic Convergence Adjustment
Page 20
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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) .requency 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-.ield Color Bars (100% window) Page 21
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
Initial Setup
A. Option Menu Setup
.ollow the steps below for the initial set-up: 1. Select the "MENU" display by pressing the "MENU" button once. 2. Press the number buttons "0", "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-0-1-7-0) OPTION MENU Initial Power restore DTV Port
:O.. :Auto
B.
Default Settings
SETUP
Edit Setup Review () Enabled Antenna A () Enabled Antenna B () Enabled Antenna C () Enabled DTV () Enabled Input 1 () Enabled Input 2 () Enabled Input 3 () Enabled Input 4 () Enabled Input 5 () Enabled Component 1 () Enabled Component 2 () Enabled VGA As above Icon Position On Transport Menu English Language ANTENNA Antenna ANT A Memorize Channels Air Channel Ch-3 Memory Deleted CLOCK Clock Setting Auto Time Zone Eastern Daylight Savings Applies
MAIN MENU DE.AULT SETTINGS Clock Time N/A Channel Ch-3 Set Day N/A AUDIO SETTINGS Volume 30% CAPTIONS Closed Captions With Mute Bass 50% CC Background Gray Treble 50% Digital Channel Guide On Balance 50% Surround Off V-CHIP PARENT LOCK V-CHIP Off Listen to Stereo TV Rating TV-PG Level Sound Off .V-.antasy Violence () Enabled TV Speakers On () Enabled D-Sexual Dialog VIDEO SETTINGS () Enabled Contrast L-Adult Language 100% () Enabled Brightness S-Sexual Situation 50% () Enabled Sharpness V-Violence 50% () Enabled Color Program not Rated 50% Movie Rating PG Tint 50% Color Temp. High V-CHIP LOCK BY TIME V-Chip Start Time 12:00 PM Video Noise Standard V-Chip Stop Time 12:00 PM Image Type Video Lock by Time Off Video Mute On Unlock Time N/A Black Enhancement On .ront Button Lock Off PIP/POP Source Ant A Ch 3 TIMER Timer Off PIP Position Lower Right Set Day Everyday POP Position Right Half Set Time 12:00PM .ormat Stretched Device Ant-A PIP/POP .ormat Dble. Window
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 DE.AULT 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 O.. O.. O.. O.. O.. Stereo English N/A N/A N/A O.. O.. O.. O.. O.. Page 22
VGA Max. Center N/A Center Center High N/A N/A Center Center Center O.. N/A O..
1394 1/2/3 Max. Center Center Center Center High N/A N/A Center Center Center O.. N/A O..
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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 "DEVICE" 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 23
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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 remotes 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 "0", "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
V19 0 1 SCT 42 480i
DATA SIGNAL
ABBREV.
B. Selection of adjustment .unctions 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 .unction changes in the following sequence:
VC Adjustment .unctions AUD SNTS
JNGL MNTS
Adjustment .unction Name Changes
2. Press the VIDEO button to select a specific Adjustment Item. The Item number increases each time the VIDEO button is pressed.
Previous Models Video/Chroma Jungle Main Matrix Sub Matrix Audio
V19 Chassis VC JNGL MNTS SNTS AUD
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.
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 24
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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 O... Pressing 3 when in the Adjustment Mode VC .unction toggles between 480i, 480p, 1080i and VGA. However data changes are not automatically saved. Press ENTER to save data before pressing 3.
.. Toggle Between Reception Modes
On Screen Display Position Adjust Mode
Activation
1. 2. Select 480i or 1080i source. Press MENU-0-1-8-8
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-0-1-5-9 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. 2. 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-LE.T 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.
3.
C. Convergence Mode .unctions
In the Convergence Mode there are three main .unctions (Categories). Pressing 6 activates CONV MISC Pressing 5 activates COARSE CONV Pressing 4 activates .INE 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.
Page 25
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
E. COARSE CONV (Press 5)
There are four Sub .unctions in the Coarse mode, COARSE GREEN, COARSE RED, COARSE BLUE and D.. 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. D. ... used to preset data values controlling the Dynamic Beam .ocus circuit drive signal. 1. Use AUDIO button to select a Sub .unction 2. Use the VIDEO button to select an Adjustment Item. 3. Use the ADJUST buttons to change data.
.. .INE CONV (Press 4)
Sub .unctions This mode is used to perform .ine Raster Correction, and .ine Red and Blue Convergence Adjustments. There are three Sub Adjustment .unctions, selected with the AUDIO button: .INE GREEN .... a Green Crosshatch is displayed, to make .ine Raster Corrections. .INE RED .... a White Crosshatch is displayed, to make .ine Red Convergence Adjustments. .INE BLUE .... a White Crosshatch is displayed, to make .ine Blue Convergence Adjustments. Cursor In the .ine 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 .ine 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.
V19 CONV .INE 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.
Page 26
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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. VC .unction (Video Color)
.unction 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 72 AG-1 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 White Aging, On/Off 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 IC2V00 Initial Data Notes 480p 1080i VGA 42 42 42 Sub Contrast 25 25 25 Black Level 5 3 3 Preset 8 15 7 " 3 3 3 " 25 25 25 White Balance 35 35 35 Preset 25 25 25 White Balance 20 20 20 " 55 55 55 Preset 20 20 20 White Balance 30 30 30 " 20 20 20 " 20 20 20 " 55 55 55 " 15 15 15 " 42 42 42 Preset 25 25 25 User 2 2 2 User 2 2 2 " 31 31 31 2 2 0 " 7 7 7 Cb Cr Offset 7 7 7 Cb Cr Offset 7 7 7 Preset 2 2 2 " 8 8 8 " 11 11 11 " 1 1 1 "
480i 42 25 3 7 3 25 35 25 20 55 20 30 20 20 55 15 42 25 2 2 31 2 10 10 7 2 8 11 1
JNGL .unction (Jungle)
.unction Display Item # Abbrev. 1 HWID 2 HKEY 3 EWPT 4 EWCT 5 EWPB 6 EWCB 7 VHGT 8 VLIN 9 VSCN 10 VLNT 11 VLNB 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 Vertical Lin. (Top) Vertical Lin. (Bottom) Horizontal Position Vertical Position 55" Data Data Range 1080i 480i 0~63 33 33 0~63 31 31 0~63 22 22 0~63 31 28 0~63 27 31 0~63 31 31 0~63 25 27 0~15 9 9 0~15 0 0 0~15 0 0 0~15 0 0 0~63 30 37 0~63 31 31
Page 27
65" Data 1080i 480i 33 33 31 31 22 22 31 28 27 31 31 31 25 27 9 9 0 0 0 0 0 0 30 37 31 31
73" Data 1080i 480i 36 33 31 31 22 16 31 31 27 21 31 27 32 32 9 9 0 0 0 0 0 0 30 37 31 31
IC4A01 Notes Width Preset " " Height Preset " " " " "
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
MNTS .unction (Main Decoder)
.unction Display Item # Abbrev. 1 TNTM 2 COLM 3 YDRM 4 VPDM 5 UPDM
Main Tint Main Color Main Gain Control Pr Pedestal Adjustment Pb Pedestal Adjustment
Adjustment Description
Data Range 0~63 0~63 0~31 0~15 0~15
Initial Data R. Non R. 27 29 19 19 9 9 7 7 7 7
IC2E00 Notes Preset " Main Y Level
SNTS .unction (Sub Decoder)
.unction Item # 1 2 3 4 5 Display Abbrev. TNTS COLS YDRS VPDS UPDS
Sub Tint Sub Color Sub Gain Control Pr Pedestal Adjustment Pb Pedestal Adjustment
Adjustment Description
Data Range 0~63 0~63 0~31 0~15 0~15
Initial Data 29 27 12 7 7
IC2H00 Notes Preset " Sub Y Level " "
AUDIO .unction
.unction 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. OSDHD OSDSD
(MENU-0-1-8-8) Description Data Initial Range Data HD OSD Horizontal Position 0~960 122 SD OSC Horizontal Position 0~960 120
DYNAMIC .OCUS
(MENU-0-1-5-9) Data Item Abbrev. Description SD&HD Number Name 0 D.H Dynamic .ocus Horizontal -300 1 D.V Dynamic .ocus Vertical -100
(MENU-0-1-5-9-6) Item Abbrev. Data Notes Number Name SD HD 1 HVOL HV Adj. 160 2 VCNT 29 29 Preset 3 VSTR 0 0 " 4 VO.S 25 0 " 5 STLN 45 34 " 6 .PHS 288 288 " 7 CPHS 15 15 " 8 HO.S 22 22 " 9 DPHS 0 0 " 10 DO.S 63 63 " 11 TPHS 34 36 " 12 TPVD 27 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 .DEL 3 3 " * Do not change "1 HVOL" if it has been previously set.
CONV MISC
Page 28
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
CONV GREEN Items
No. Abbrev. Description Name 1 HSTA* Horizontal Position 2 VSTA* Vertical Position 3 SKEW Skew (Y axis rotation) 4 TILT Tilt (X axis rotation) 5 HWID Horisontal Width 6 HLIN Horizontal Linearity 7 SPCC Side Pin Cushion Correction 8 HKEY Horizontal Keystone 9 TBPC Top/Bottom PC Correction 10 VKEY Vertical Keystone 11 VWID Vertical Height 12 VLIN Vertical Linearity. *HSTA and VSTA must not exceed ±200 WS-55859 SD HD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -200 -170 15 15 0 0 0 0 WS-55909 SD HD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -200 -170 15 15 0 0 0 0 WS-65869 SD HD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -200 -170 15 15 0 0 0 0
(MENU-0-1-5-9-5) WS-65909 WS-73909 SD HD SD HD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -200 -170 -200 -170 15 15 15 15 0 0 0 0 0 0 0 0
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 WS-55859 SD HD 50 50 0 0 0 0 0 0 -150 -150 10 10 -90 -90 0 0 0 0 20 20 30 30 WS-55909 SD HD 50 50 0 0 0 0 0 0 -150 -150 10 10 -90 -90 0 0 0 0 20 20 30 30 WS-65869 SD HD 50 50 0 0 0 0 0 0 -150 -150 10 10 -90 -90 0 0 0 0 20 20 30 30
(MENU-0-1-5-9-5) WS-65909 WS-73909 SD HD SD HD 50 50 50 50 0 0 0 0 0 0 0 0 0 0 0 0 -150 -150 -200 -150 10 10 10 10 -90 -90 -100 -90 0 0 0 0 0 0 0 0 20 20 20 20 30 30 30 30
CONV BLUE 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 HSBW Horizontal Side Bow *HSTA and VSTA must not exceed ±200 WS-55859 SD HD -50 -50 0 0 0 0 0 0 160 150 -20 -20 70 70 0 0 0 0 -20 -20 -30 -30 WS-55909 SD HD -50 -50 0 0 0 0 0 0 160 150 -20 -20 70 70 0 0 0 0 -20 -20 -30 -30 WS-65869 SD HD -50 -50 0 0 0 0 0 0 160 150 -20 -20 70 70 0 0 0 0 -20 -20 -30 -30
(MENU-0-1-5-9-5) WS-65909 WS-73909 SD HD SD HD -50 -50 -50 -50 0 0 0 0 0 0 0 0 0 0 0 0 160 150 220 150 -20 -20 -20 -20 70 70 80 70 0 0 0 0 0 0 0 0 -20 -20 -20 -20 -30 -30 -30 -30
Page 29
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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 30
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 [Audio Circuit] 1. MCS Input Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal Oscilloscope Connector ST pins 16&12 -----50mV/Div R. Stereo 300 Hz modulation R. Input
Purpose:
Check the input signal level to the MCS circuit
Symptom: Distorted sound during a stereo broadcast.
1. Supply an R. 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 .unction. 4. Verify that the Audio .unction 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. 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. Note: Adjustment 2 (Stereo Separation) must be performed after this adjustment)
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
AUDIO .unction 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 Input Terminal Oscilloscope Conector ST pin 16 -----10mV/Div R. Stereo R. Input
Purpose
Check stereo separation
Symptom: Poor stereo separation
Note: This adjustment must follow Adjustment 1 (Input Level) 1. Supply a R. 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 .unction. 4. Set the data for Item 3 WDE for minimum Right Audio signal. 5. Change the modulation frequency to 3kHz. 6. Adjust the data for Item 4 SPC for minimum Right Audio signal.
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Page 31
[HV Circuit] 3. HV Regulation
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 Purpose: To set the CRT Anode voltage. Symptom: Dark Picture
DC Voltmeter DT connector pins 3 & 6 -----------Video Signal Monoscope Video Input
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-0-1-5-9 Misc. ."6" Coarse..."5" .ine ..."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:
1. 2. 3. 4. 5. 6.
To set picture luminance Excess or insufficient brightness.
Supply a color bar signal to a Video Input (not an R. 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).
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Page 32
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 [Video Circuit] 5. Side by Side Sub Picture Tint
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------NTSC Video
Purpose:
To match the sub picture color to that of the main picture.
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 .unction. 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)
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....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 Input Terminal Oscilloscope EB connector pin 5 -----200mV/div 20usec/div Color Bars Video Input
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. 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.
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Page 33
[CRT Circuit] 7. CRT Cutoff
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 Purpose: To set the cutoff point for all three CRTs. 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 .unction. 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 190V, 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 25 5 SCON 3 6 RDRH 25 7 GDR 35 8 BDRH 25 9 CRTH 20 10 CTGH 55 11 CTBH 20
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....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 Voltmeter ---------------NTSC White Raster R. or Video
Purpose Symptom:
To set the CRTs white level in the NTSC mode. Monochrome has a color tint.
Note: Use the .ORMAT 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 30%. 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 30%. 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-0-1-5-7 .unction .....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
Page 34
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 [CRT Circuit] 9. White Balance (HD)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------HD White Raster DTV Inputs
Purpose:
To set the CRTs white level in the HD mode.
Symptom: Monchrome pictures have a color tint.
1. 2. 3. 4. 5.
Supply an HD .ull White Raster signal to the DTV Inputs. Select the DTV Inputs (Input button) Activate the Adjustment mode, VC .unction. 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 30%. 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-0-1-5-7 .unction .....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 Input Terminal ------------------White Raster (HD&NTSC) Video & DTV Inputs
Purpose
To set Cb and Cr color signal level.
Symptom: Incorrect colors.
1. 2. 3. 4. 5. 6. Supply an NTSC White Raster (30% luminance) signal to a Video Input. Activate the Adjust Mode, VC .unction Set Item 23 COL data to 63. Adjust Items 60 CRO1 and 61 CBO1 for optimum white. Set Item 23 COL data to 31. Save data and Exit the Service Mode.
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Page 35
[Video Circuit] 11. Black Level
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -------------------
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 Purpose: To set the black level of the picture. Symptom: Excess or insufficient brightness.
1. Supply a Monoscope signal to a Video Input. 2. Activate the Adjust Mode, VC .unction. 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.
Monoscope Video Input
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....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] 12. Sub Contrast
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal DC ma meter DT connector pins 7 & 8 ---------Grayscale R. 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 R. Input. 2. Activate the Adjust Mode, VC .unction. 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 615µA ±10µA (645µa ±10µa on the WS-73909). 6. Remove the meter. 7. Save data and Exit the Service Mode.
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Page 36
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 [.ocus Circuit] 13. Dynamic .ocus Preset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------Monoscope Video Input
Purpose:
To improve edge focus.
Symptom: Poor focus at the edges of the screen.
1. 2. 3. 4. 5. 6. 5. Supply a Monoscope signal to a Video Input Activate the Convergence Mode. Select the D. .unction under the Conv. Coarse Mode. Set Items 0 D.H and 1 D.V to the data values given in the D. Table. Press 6 to activate CONV-MISC Set 0 .PHS and 1 DPHS to data values given in the CONV-MISC Table. Exit the Conv. Mode.
CONVERGENCE MODE Activate ..MENU-0-1-5-9 Misc. ."6" Coarse..."5" .ine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
D. (MENU-0-1-5-9-5) Item Abbr. Data 0 D.H -300 1 D.V -100 CONV MISC (MENU-0-1-5-9-6) Item Abbr. Data 9 DPHS 0 10 DO.S 63
[Video Circuit] 14. Lens .ocus
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------Monoscope Video Input
Purpose
To set the Lens position for optimum focus.
Symptom: Poor focus
Note: This adjustment must be done before Electrostatic .ocus. 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.
Page 37
[CRT Circuit]
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 Purpose: To set electrostatic focus to the optimum point. Symptom: Poor focus.
15. Electrostatic .ocus & (Alignment Magnet)
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------Monscope & Crosshatch Video Input
Note: This adjustment must be performed after the Sub Contrast adjustment. Alignment Magnet Adjustment (WS-55909, WS-65909 and WS-73909 Only) This adjustment must be performed before Static .ocus 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 .ocus VR. 4. Rotate Green .ocus 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 .ocus 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 .ocus 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 .ocus VRs for optimum focus at the top center of the picture..
Ra ste r Color Color Raster Red Green Blue
Selection Activation Code MENU-0-1-5-9-1 MENU-0-1-5-9-2 MENU-0-1-5-9-3
[On Screen Display] 16.Character Position
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal ------------------Video Signal (HD/NTSC) ANT-A/DTV
Purpose Symptom:
1. 2. 3. 4. 5. 6. 7. 3.
To position the character display horizontally. Incorrect display position
Supply an NTSC signal to Ant-A and select Ant-A as the source. Enter the OSD Position Mode, press MENU-0-1-8-8. Adjust OSDSD to center the OSD horizontally. Press MENU to save data and exit the mode. Supply a HD signal to the DTV inputs and select the DTV Inputs as the source. Enter the OSD Position Mode, press MENU-0-1-8-8. Adjust OSDHD to center the OSD horizontally. Press MENU to save data and exit the mode.
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[Conv/Defl] 17. Geometry Preset
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -------------------
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 To preset data controlling raster geometry Purpose: Symptom: Raster distortion.
Note: This procedure is usually only necessary if an E2PROM is replaced in the TV Control, DM or Convergence circuits. Procedure In the Circuit Adjustment and Coarse Convergence Modes pre-set the data to the values given in the Tables below.
NTSC & HD Video & DTV Inputs
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
CONVERGENCE MODE Activate ..MENU-0-1-5-9 Misc. ."6" Coarse..."5" .ine ..."4" Color (R,G or B)AUDIO Item No...VIDEO Adjust/Move.ADJUST Cursor Toggle...ENTER Save & Exit..MENU (twice)
DE.L JUNGLE (MENU-0-1-5-7) Item # Abbrev. 55"&65" Data NTSC HD 1 HWID 33 33 2 HKEY 31 31 3 EWPT 22 22 5 EWPB 31 27 7 VHGT 27 25 8 VLIN 9 13 9 VSCN 0 0 20 VPOS 31 31
73" Data NTSC HD 33 36 31 31 16 22 21 27 32 32 9 9 0 0 31 31
CONV GREEN (MENU-0-1-5-9-5) 65" Data 73" Data Item # Abbrev. 55" Data SD HD SD HD SD HD 0 HSTA 0 0 0 0 0 0 1 VSTA 0 0 0 0 0 0 2 SKEW 0 0 0 0 0 0 3 TILT 0 0 0 0 0 0 4 HWID 0 0 0 0 0 0 5 HLIN 0 0 0 0 0 0 6 SPCC 0 0 0 0 0 0 7 HKEY 0 0 0 0 0 0 8 TBPC -200 -170 -200 -170 -200 -170 9 VKEY 0 0 0 0 0 0 10 VWID 0 0 0 0 0 0 11 VLIN 0 0 0 0 0 0 CONV RED (MENU-0-1-5-9-5) Item # Abbrev. 55" Data SD HD 0 HSTA 50 50 1 VSTA 0 0 2 SKEW 0 0 3 TILT 0 0 4 HLIN -150 -150 5 HWID 10 10 6 VKEY -90 -90 7 VWID 0 0 8 VLIN 0 0 9 TBPC 20 20 10 HSBW 30 30
CONV BLUE (MENU-0-1-5-9) Item # Abbrev. 55" Data 65" Data SD HD SD HD 0 HSTA -50 -50 -50 -50 1 VSTA 0 0 0 0 2 SKEW 0 0 0 0 3 TILT 0 0 0 0 4 HLIN 160 150 160 150 5 HWID -20 -20 -20 -20 6 VKEY 70 70 70 70 7 VWID 0 0 0 0 8 VLIN 0 0 0 0 9 TBPC -20 -20 -20 -20 10 HSBW -30 -30 -30 -30
73" Data SD HD -50 -50 0 0 0 0 0 0 220 150 -20 -20 80 70 0 0 0 0 -20 -20 -30 -30
65" Data 73" Data SD HD SD HD 50 50 50 50 0 0 0 0 0 0 0 0 0 0 0 0 -150 -150 -200 -150 10 10 10 10 -90 -90 -90 -90 0 0 0 0 0 0 0 0 20 20 20 20 30 30 30 30
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MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 [Deflection Circuit] 18: 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.
CIRCUIT ADJUST MODE Activate .. MENU-0-1-5-7 .unction .....AUDIO Item No. ..VIDEO Adjust Data ..ADJUST Save Data . ENTER Exit ..MENU (twice)
Preliminary: 1. DO NOT change the initial values for #8 VLI