Mitsubishi WS-48315, WS-55315, WS-65315 Schematic

MITSUBISHI ELECTRIC

WS-48315

2004

Service Manual

PROJECTION TELEVISION V24 CHASSIS

V24 Chassis

MODELS

WS-48315 WS-55315 WS-65315

CAUTION:

Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and "PRODUCT SAFETY NOTICE" contained in this manual.

SPECIFICATIONS

• Power : AC 120V, 60Hz

240W

• Frequency : VHF 54 ~ 470MHz Range UHF 470 ~ 806MHz

• Antenna Input : VHF/UHF 75Ω unbalanced

• CRT Size : 7 inches

• High Voltage : 30.8KV

• Speakers : [WS-48315]

Two 5" round, full range (8Ω 10W) : [WS-55315 / 65315] Two 6" round, full range (8Ω 10W)

• Weight / Cabinet Dimensions

Model Weight Height Width Depth WS-48315 WS-55315 WS-65315

172lbs 49" 44.5" 24" 221 lbs 50.4" 50.5" 27.8" 327 lbs 62" 59" 28"

• Input Level : VIDEO IN JACK (RCA Type)

1.0Vp-p 75Ω unbalanced : AUDIO IN JACK (RCA Type)

-4.7dBm 43kΩ unbalanced : S-VIDEO IN JACK (Y/C separate) Y=1.0 Vp-p C=0.286Vp-p(BURST) 75Ω unbalanced : COMP / Y, Cr, Cb (RCA Type) Y=1.0 Vp-p. Cr, Cb=700mVp-p : DTV / Y(G), Pr(R), Pb(B), H, V Y 1.0Vp-p with sync 75Ω (RCA Type) Pr, Pb: 700mV 75Ω H, V: 3.0Vp-p 75Ω

• Digital Inputs

:MonitorLink :MonitorLink

• Output Level : VIDEO OUT JACK (RCA Type)

1.0Vp-p 75Ω unbalanced : AUDIO OUT JACK (RCA

-4.7dBm 4.7kΩ unbalanced

/DVI

Control/RS-232C

Type)

• 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

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MODELS: WS-48315 / WS-55315 / WS-65315

CONTENTS

INTRODUCTION .................................................................................................................................. 5

PRODUCT SAFETY NOTICE ............................................................................................................ 5

SAFETY PRECAUTIONS................................................................................................................... 6

DISASSEMBLY PROCEDURES .......................................................................................................... 7

WS-48315

Front Cabinet Components ..................................................................................................... 7

Rear Cabinet Components ...................................................................................................... 8

WS-55315 / WS-65315

Front Cabinet Components ..................................................................................................... 9

Rear Cabinet Components .................................................................................................... 10

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS ...................................................... 11

WS-48315

Removal of the Lenticular Screen and Fresnel Lens ............................................................... 11

WS-55315 / WS-65315

Removal of the Lenticular Screen and Fresnel Lens .............................................................. 12

Installation of the Lenticular Screen and Fresnel Lens ................................................................... 13

CABINET SEPARATION PROCEDURES ........................................................................................... 14

WS-65315 ...................................................................................................................................... 14

SERVICING THE DIAMONDSHIELD™ ............................................................................................. 15

DiamondShield Removal ................................................................................................................. 15

DiamondShield Installation ............................................................................................................. 15

SERVICING PCBs ............................................................................................................................. 16

Chassis Removal ........................................................................................................................... 16

PCB Locations ............................................................................................................................... 16

Major Parts Locations .................................................................................................................... 16

ANODE LEAD REMOVAL .................................................................................................................. 17

CRT REPLACEMENT ........................................................................................................................ 17

CRT Removal ................................................................................................................................. 17

CRT Installation .............................................................................................................................. 18

ELECTRICAL ADJUSTMENTS ....................................................................................................... 20

Equipment ..................................................................................................................................... 20

Initial Setup .................................................................................................................................... 21

LED Indicator Diagnostics .............................................................................................................. 22

Circuit Adjustment Mode ................................................................................................................ 23

Convergence Adjustment Mode ...................................................................................................... 24

Adjustment Items List .................................................................................................................... 26

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MODELS: WS-48315 / WS-55315 / WS-65315

Adjustment Procedures .................................................................................................................. 29

Test Point Locations ............................................................................................................. 29

HV Regulation ....................................................................................................................... 30

Main / Sub Y Level ................................................................................................................ 30

Main / Sub Color Level .......................................................................................................... 31

CRT Cutoff ............................................................................................................................. 31

White Balance (NTSC) .......................................................................................................... 32

White Balance (HD) .............................................................................................................. 32

Black Level............................................................................................................................ 33

Sub Contrast ......................................................................................................................... 33

Dynamic Focus Presets ....................................................................................................... 34

Lens Focus ........................................................................................................................... 34

Alignment Magnet & Electrostatic Focus .............................................................................. 35

Charactrer Position ............................................................................................................... 35

Geometry Presets ................................................................................................................. 36

Deflection Geometry Adjustments ......................................................................................... 37

Convergence Geometry Adjustments .................................................................................... 38

Centering & Static Convergence ............................................................................................ 39

Coarse Convergence Adjustments ........................................................................................ 40

Fine Convergence Adjustments ............................................................................................. 41

MonitorLink Picture Position ................................................................................................. 41

CHIP PARTS REPLACEMENT .......................................................................................................... 42

REPLACEMENT PARTS .................................................................................................................... 43

Parts Ordering ................................................................................................................................ 43

Critical and Warranty Parts Designation ........................................................................................ 43

Parts Tolerance Codes ................................................................................................................... 43

Quick Reference List ...................................................................................................................... 44

SERVICE PARTS LIST ..................................................................................................................... 45

SCREEN ASSEMBLY PARTS LIST ................................................................................................... 57

CIRCUITRY BLOCK DIAGRAMS ...................................................................................................... 59

Part 2

Schematic Diagrams

CONTENTS Page

SCHEMATIC DIAGRAMS

PCB INTERCONNECT BLOCK DIAGRAM ....................................................................................... 1

PCB-MAIN ....................................................................................................................................... 2

PCB-POWER ................................................................................................................................... 3

PCB-TERMINAL-1 (A/V I/O) ............................................................................................................. 4

PCB-TERMINAL-2 (DVI), DOUBLER-3 ............................................................................................. 5

PCB-CRT, CONTROL, FRONT and PREAMP .................................................................................. 6

PCB-SIGNAL-1 (TUNER I/O) ............................................................................................................ 7

PCB-SIGNAL-2 (MICRO) .................................................................................................................. 8

PCB-SIGNAL-3 (VIDEO / CHROMA) ................................................................................................ 9

PCB-SIGNAL-4 (CONVERGENCE GENERATOR) ......................................................................... 10

PCB-DOUBLER-1 ........................................................................................................................... 11

PCB-DOUBLER-2 .......................................................................................................................... 12

PCB LAYOUT DIAGRAMS ................................................................................................................ 13

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MODELS: WS-48315 / WS-55315 / WS-65315

INTRODUCTION

This service manual provides service instructions for the PTV Models listed below. Service personnel should read this manual thoroughly before servicing these chassis.

V24 Chassis

WS-48315 WS-55315 WS-65315

This service manual includes:

1. Assembly and disassembly instructions for the front and rear cabinet components.

2. Servicing of the Lenticular Screen and Fresnel Lens.

3. Servicing printed circuit boards (PCBs).

4. CRT replacement procedure.

5. Electrical adjustments.

6. Chip parts replacement procedures.

7. Circuit path diagrams.

The parts list section of this service manual includes:

1. Cabinet and screen parts.

2. Electrical parts.

Schematic and block diagrams of the above listed models are included in this service manual for better understanding of the circuitry. PCB drawings are also included for easy location of parts and test points.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in television receivers have special safety related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have special safety characteristics are identified in this service manual.

Electrical components having such features are identified by shading on the schematic diagram and by bold

type in the parts list of this service manual. The replacement for any safety part should be identical in value and characteristics.

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MODELS: WS-48315 / WS-55315 / WS-65315

SAFETY PRECAUTIONS

NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on the

receiver chassis.

WARNING:

1. 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.

2. 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.

3. 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).

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MODELS: WS-48315 / WS-55315 / WS-65315

CABINET DISASSEMBLY (FRONT VIEW)

*Refer to PARTS LIST for Part Numbers

WS-48315

Front Cabinet Disassembly

1. Remove the Speaker Grille by pulling forward.

2. Remove the Board-Front by removing six screws "a".

3. Remove the Screen Assembly by removing four screws "b". Disconnect all cable harnesses between the Screen Assembly and the PCB-Signal.

4. Lift the Screen Assembly and pull up and away from the cabinet as shown.

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MODELS: WS-48315 / WS-55315 / WS-65315

CABINET DISASSEMBLY (REAR VIEW)

WS-48315

Rear Cabinet Disassembly

1. Remove the Back Board by removing 14 screws "a", “b” and “c”.

2. Remove 4 screws "d" securing the Light Box Assembly.

3. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (e.g. speaker plugs).

4. Slide the Light Box Assembly out of the cabinet.

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MODELS: WS-48315 / WS-55315 / WS-65315

CABINET DISASSEMBLY (FRONT VIEW)

WS-55315 WS-65315

Front Cabinet Disassembly

1. Remove the Speaker Grille by pulling forward.

2. Remove the Front-Board by removing screws "a".

3. Remove the Screen Assembly by removing 5 screws "b". Disconnect connectors CC and ZF between the

Screen Assembly and the PCB-Signal.

4. Lift the Screen Assembly and pull up and away from the cabinet as shown.

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MODELS: WS-48315 / WS-55315 / WS-65315

CABINET DISASSEMBLY (REAR VIEW)

WS-55315 WS-65315

Rear Cabinet Disassembly

1. Remove the Back Board by removing 13 screws "a" (15 screws “a” in 65 inch models).

2. Remove the Board Slide by removing four screws “b”.

3. Remove the two Board Shelves by removing 8 screws “c”.

4. Remove 4 screws "d" securing the Light Box Assembly.

5. Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected (connectors CC, ZF and EJ)).

6. Slide the Light Box Assembly out of the cabinet.

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MODELS: WS-48315 / WS-55315 / WS-65315

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS

WS-48315

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.

1a. Lenticular Screen and Fresnel Lens Removal

1. Remove the screen assembly as shown in the Cabinet Disassembly procedure.

2. Remove the Top, Bottom and Side Holder Screens..

3. Carefully lift the Lenticular Screen and Fresnel Lens combination from the Screen Frame Assembly.

Note: When separating the Lenticular Screen from the Fresnel Lens, use caution

while prying the Screen and Lens apart. Use a slot type screw driver, and remove the pressure sensitive double sided tape.

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MODELS: WS-48315 / WS-55315 / WS-65315

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS

WS-55315 WS-65315

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.

1b. Lenticular Screen and Fresnel Lens Removal

1. Remove the screen assembly as shown in the Cabinet Disassembly procedure.

2. Remove the HOLDER-SCREEN-BOTTOM.

3. Carefully slide the Lenticular Screen and Fresnel Lens combination from the upper 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 driver, and remove the pressure sensitive double sided tape.

1b. Installing the Fresnel Lens and Lenticular Screen

1. Insert the Lenticular Screen and Fresnel Lens combination into the upper Screen Frame.

2. Install the HOLDER-SCREEN-BOTTOM, install the end screws first.

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MODELS: WS-48315 / WS-55315 / WS-65315

2. Installation of the Lenticular Screen and Fresnel Lens

Note: Store the Lenticular Screen and Fresnel Lens in a cool dry place. High heat/humidity may

deform the Lenticular Screen and Fresnel Lens.

1. Apply double coated tape (Part # LENS-TAPE) along the top front edge of the Fresnel Lens as shown in Figure 2-2. Refer to Table A for proper tape length.

2. Place the Fresnel Lens on top of the Lenticular Screen and apply pressure at the top edge to bond them together as shown in Figure 2-2.

3. Reverse the disassembly procedure for that model to install the screens in the screen frame.

Fresnel Lens

Top

( * X ) inch

Double Sided Tape (Part# LENS-TAPE)

Fresnel Lens

Lenticular Screen

Bottom

Lenticular Screen

Figure 2-2

Model

WS-48315 48" 41.76 WS-55315 55" 47.85 WS-65315 65" 56.55

Screen

Size

Table A

Tape

Length

Bottom

0.16 inch

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MODELS: WS-48315 / WS-55315 / WS-65315

CABINET SEPARATION PROCEDURE

(WS-65315)

Modes WS-65315 cabinet is assembled in two pieces. These two pieces may be separated to allow easier delivery and setup.

Cabinet Separation Precedure

(Figure 1)

1. Pull the Speaker Grille off.

2. Unplug connectors “CC” and ZF.

3. Remove 4 screws “a” on both sides of the cabinet.

(Figure 2)

4. Carefully lift the cabinet top until the support tabs clear the bottom cabinet.

(Figure 3)

5. Carefully rotate the cabinet top and place it on the floor.

6. Reverse the procedure to mount the cabinet top on the cabinet bottom.

Figure 2

Figure 1

Figure 3

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MODELS: WS-48315 / WS-55315 / WS-65315

SERVICING THE DIAMONDSHIELD™

1. DiamondShield Removal Procedure

The location of the DiamondShield molding clips may vary 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

1. Gently insert a small screwdriver between the

DiamondShield and one end of the clip to pry the clip loose.

Side Molding Clips

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.

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.

2. DiamondShield Installation Procedure

*(See the Parts List for DiamondShield part numbers)

To install the DiamondShield, reverse the above Removal Procedure.

2. Remove both clips by pulling them toward you.

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.

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MODELS: WS-48315 / WS-55315 / WS-65315

SERVICING PCBs

Chassis Removal and PCB Locations

Chassis Removal

1) Remove screw “a” from the Main Chassis.

2) Raise the two chassis locks on the inner sides of the Lightbox Assembly and slide the chassis towards the rear.

Major Part Locations

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MODELS: WS-48315 / WS-55315 / WS-65315

ANODE LEAD REMOVAL

CAUTION: To prevent damage, the following procedure must be used when removing an

Anode Lead from the Flyback Transformer.

1) Push the Anode Lead down.

2) While holding the lead down rotate the lead 90º counter clockwise.

3) Carefully remove the Anode Lead from the Flyback Transformer.

CRT REPLACEMENT

1. Removal of the CRT

Caution! High voltage should be completely discharged prior to CRT removal.

Since the CRTs receive high voltage from the Flyback transformer, discharge by shorting the open end of the respective high voltage cable to chassis ground.

Note: Refer to Cabinet Disassembly when performing steps 1 through 2.

1. Remove the Speaker Grille, Front Board, and Screen Assy.

2. Remove the Back Board.

3. Remove the Anode Lead Wire from the Flyback transformer. (Use the above procedure)

4. Remove the PCB-CRT.

5. Remove 4 hex-screws "a" retaining the Optical Unit. [Figure 5-1]

6. 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 and other CRT components from the neck of the CRT. [Figure 5-6]

Figure 5-1

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MODELS: WS-48315 / WS-55315 / WS-65315

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]

Note: The 4 spring-loaded screws shown

in Fig 5-2 and labeled as "DO NOT REMOVE", should not be loosened under any circumstance. Doing so will break the seal between the CRT and the CRT-Spacer, causing leakage of the CRT Coolant.

Figure 5-2

Figure 5-3

Figure 5-5

Figure 5-4

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MODELS: WS-48315 / WS-55315 / WS-65315

1. Carefully position the replacement CRT and fasten in place using 4 screws "d". [Figure 5-5]

2. Install the Deflection Yoke and other CRT components back in their original position on the CRT neck. [Figure 5-6]

3. Install the Lens that was removed in step 6 of Removal Of The CRT. [ Figures 5-1 and 5-2 ]

a) Position the Lens so that the Label faces the direction shown in Figure 5-7 b) Install the mounting screws “b”. [Figure 5-1]

4. Insert the Optical Unit into the Light Box Assembly.5. Install the PCB-CRT.

6. Insert the Anode Lead Wire into the Flyback Transformer.

7. Re-clamp the Lead Wire in its original position.

Figure 5-6

Figure 5-7

Adjustment procedures after replacing the CRT(s)

• CRT Cut Off / White Balance Adjustment

• Static Convergence Adjustment

• Dynamic Convergence Adjustment

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MODELS: WS-48315 / WS-55315 / WS-65315

ELECTRICAL ADJUSTMENTS

Note: Perform only the adjustments required.

Do not attempt an alignment if proper equipment is not available.

1. Test Equipment

• Oscilloscope (Unless otherwise specified, use 10:1 probes)

• Signal Generator (both SD and HD capable)

• Direct Current Voltmeter

• Direct Current Ampere Meter

2. Test Signal

A. Monoscope Signal

Note: If you do not have

a monoscope signal source, connect the unit to a VCR and play a Monoscope *alignment tape. (* Part Number: 859C568060)

B. Color Bar Signal

Use the color bar signal shown below, unless otherwise specified in this manual.

Monoscope Signal

Split-Field Color Bars (100% window)

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MODELS: WS-48315 / WS-55315 / WS-65315

MENU-0-3-7-0

OPTION MENU

Direct Key Mod

:OFF

NetCommand

IR Setup

VIDEO SETTINGS

CLOCK Menu

CAPTIONS Menu

CHANNEL EDIT Menu

TV Volume

TIMER Menu

PIP Source

PIP Position

POP Position

Format

PIP/POP Format

3. Initial Setup

A. Option Menu Setup

Follow the steps below for the initial set-up:

1. Select the "MENU" display by pressing the "MENU" button once.

2. Press the number buttons "0", "3", "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.

Initial Power Restore :OFF DTV Port :Auto

B. Default Settings

MAIN MENU DEFAULT SETTINGS

SETUP Menu

Memorize Channels Ant-A Air Lock by Time Off Magenta 50% NetCommand® IR Setup Lock Time N/A Red 50% Clock Unlock Time N/A Yellow 50% Language English Front Button Lock Off Green 50% Energy Mode Standard V-Chip Cyan 50%

INPUT ASSIGNMENT Menu

Antenna-A On V-Chip Off Antenna-B On TV Rating TV-PG A/V Memory Reset Ant A DTV YPrPb FV-Fantasy Violence Allow TV Speakers (Internal) On Component-1 Comp-1 D-Sexual Dialog Allow Audio Output Variable Component-2 Comp-2 L-Adult Language Allow Input-1 Input-1 S-Sexual Situation Allow TV Bass 50% Input-2 Input-2 V-Violence Allow TV Treble 50% Input-3 Input-3 Movie Rating PG TV Balance 50% MonLink MonLink Programs Not Rated Allow TV Surround Off

Language English V-Chip Start Time 12:00am TV Level Sound Off

V-Chip Stop Time 12:00am

Clock Setting Manual Color Balance TV Brightness 50% Clock Time --:-- Timer TV Sharpness 50% Set Day Sunday Convergence TV Color 50% Time Zone N/A Video Mute On TV Tint 50% Daylight Savings Time N/A Black Enhancement On TV Color Temp High

Closed Captions In Mute Ant-A Auto Color Correction Off TV Film Mode (Auto) On CC Background Gray PerfectColor™ TV VSM On

Reset Color for Ant-A Antenna ANT-A Channel 003 Timer Off Memory Deleted Set Time 12:00 am Name N/A Set Day Everyday SQV N/A Input Ant-A

Channel 003

V-CHIP LOCK Menu

V-CHIP Menu

V-CHIP HoursWelcome to NetCommand® IR

ADVANCED FEATURES Menu

COLOR BALANCE Menu

Blue 50%

AUDIO/VIDEO SETTINGS Menu

AUDIO SETTINGS

TV Listen To Stereo

TV Contrast 100%

TV Video Noise Standard

PerfectColor™

30%

Ant A Ch 3

Lower Right

Right Half

Stretch

Dble Win

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MODELS: WS-48315 / WS-55315 / WS-65315

Ant-B

1/2/3

1/2

TV Contrast

TV Brightness

TV Sharpness

TV Color

TV Tint

TV Color Temp.

Video Noise

TV Image Type

TV SVM

TV Bass

TV Treble

TV Balance

TV Surrond

TV Listen To

TV Level Sound

Off

Items in the table below are set following Initalization.

AV Memory Initial Settings

A/V Memory

Ant-A

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 Standard Standard Standard Standard

Video Video Video Video Video

DTV

NTSC

COMP

MonLink

Sharpness

4. LED Indicator Diagnostics

The “Power ON LED” provides an indication of the sets operation, and the possible cause of a malfunction.

A. Initial Control Circuitry Check

Immediately after the TV is connected to an AC power source:

• The LED flashes three times ... indicating the Microprocessor has initialized and is functioning

properly.

• If the LED does not flash ... the Microprocessor is NOT functioning.

B. Error Code Operational Check

Note: The TV must be in “Shut Down” and not heve been switched Off, to perform the Error Code Opera-

tional Check. When the TV is switched Off, the code automatically resets to “12” No Error.

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 be used, NOT those on the Remote Control.

• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.

• The flashing then pauses for approximately 1/2 second.

• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.

• The Error Code is repeated a total of 5 times.

Example: If the Error Code is “23”, the LED will flash two times, pause, and then flashes three

times.

On On On On On

Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center

Off Off Off Off Off

Stereo Stereo Stereo Stereo Stereo

C. Error Codes

The Error Code designations indicating a malfunction, or no malfunction, are listed below:

Error Code Description

12 No error has occurred. 21 X-Ray Protect circuit. 22 Short Protect circuit. 23 Deflection failure.

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MODELS: WS-48315 / WS-55315 / WS-65315

Video Chr

Defl Jung

Main Matr

MISCDEV

Sub Matr

5. Circuit Adjustment Mode

Except for the following, all adjustment items must be performed using the remote hand unit.

• CRT Cutoff

• Lens Focus

• Electrostatic Focus

A. Activating the Circuit Adjustment Mode

1. Press the "MENU" button on a remote hand unit.

2. Press the number buttons "0", 3", "5", "7" in sequence. The screen will change to the Adjustment Mode.

Note: Repeat steps 1 and 2 if the circuit

adjustment mode display does not appear on screen

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.

MODE

ITEM#

FUNCTION CHASSIS

Video Chr V24

Mode 0 NTSC

1 SCT 55

ABBREV. DATA

SIGNAL

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:

FUNCTIONS

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” button to change data.

• Press “ADJUST DOWN” to decrease the data value.

• Press “ADJUST UP” to increase the data value.

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MODELS: WS-48315 / WS-55315 / WS-65315

Coarse BLUE

D. Saving Adjustment Data

Press “ENTER” to save adjustment data in memory. The character display turns red for approximately one second in this step.

Note: If the circuit adjustment mode is terminated without pressing “ENTER”, changes

in adjustment data are not saved.

E. Terminating the Circuit Adjustment Mode

Press the “MENU” button on the remote hand unit twice to terminate the adjustment mode.

Note: The circuit adjustment mode can also be terminated by turning power OFF.

F. Service Mode Reset

To reset items in the service mode to their factory values:

1. Press MENU-0-3-5-7 to enter the Service Mode.

2. Press the “INPUT” or “DEVICE” button, on the front panel or the remote, and hold for 2 seconds.

6. Convergence Adjustment Mode

The Convergence mode is used to perform raster geometry correction, and convergence adjustments as specified in Adjustment Procedures 15 through 18.

A. Convergence Mode Activation

1. Press MENU-0-3-5-9

2. When the Convergence Mode is activated, the display at

the right 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 (MENU-0-3-5-9)

• If the signal source is NTSC, the SD mode is activated.

• If the signal source is HD 1080i, the HD mode is activated.

3. Activating the HD mode when no HD signal is available.

• Activate the Factory Option Menu (MENU-0-3-7-0)

• Use the “Adjust” keys to select “DTV Port” and press “Enter” to change the setting to “1080i”. Sequence = “Auto”-”480i”-”480p”-”1080i”. Ignore any loss of sync while changing modes.

• Exit the Option Menu (Press “MENU” twice).

• Select the DTV Inputs as the signal source (INPUT or DEVICE button).

• Activate the Convergence Mode ... the Convergence mode will be in the HD mode and the internal crosshatch is displayed.

4. After adjusting Convergence, be sure to set the DTV Port back to AUTO.

• Select an analog input as the signal source (INPUT or DEVICE button).

• Activate the Option Menu (MENU-0-3-7-0).

• Use the “Adjust” keys to select “DTV Port and press “Enter” to change the setting from “1080i” to “AUTO”.

• Exit the Option Menu (Press MENU twice).

1 HSTA -50

Coarse Conv. Display

GREEN

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

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MODELS: WS-48315 / WS-55315 / WS-65315

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.

E. COARSE CONV (Press 5)

There are four Sub Functions in the Coarse mode, COARSE GREEN, RED and BLUE, and DF.

• COARSE GREEN .... used to make Coarse Raster Geometry Adjustments.

• COARSE RED ... used to make Coarse Red Convergence Adjustments.

• COARSE BLUE ... used to make Coarse Blue Convergence Adjustments.

• DF ... used to preset data values controlling the Dynamic Beam Focus circuit drive signal.

1. Use AUDIO button to select a Sub Function

2. Use the VIDEO button to select an Adjustment Item.

3. Use the ADJUST buttons to change data.

F. FINE CONV (Press 4)

Sub Functions

This mode is used to perform Fine Raster Correction, and Fine Red and Blue Convergence Adjustments. There are three Sub Adjustment Functions, selected with the AUDIO button:

• FINE GREEN .... a Green Crosshatch is displayed, for Fine Raster Corrections.

• FINE RED .... a White Crosshatch is displayed, for Fine Red Convergence Adjustments.

• FINE BLUE .... a White Crosshatch is displayed, for Fine Blue Convergence Adjustments.

Cursor

In the Fine mode a Cursor is added to the Crosshatch. The ENTER button toggles the Cursor between two modes:

• MOVE (blinking Cursor) .... use the ADJUST buttons to select any of 64 points on the Crosshatch.

• ADJUST (Non blinking Cursor) .... the ADJUST buttons adjust the active color at the current Cursor

position, horizontally or vertically.

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