Mitsubishi WS-73909 Service Manual download pdf (Page 1)

CAUTION:

Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and

"PRODUCT SAFETY NOTICE" contained in this manual.

 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

MITSUBISHI ELECTRIC

Service

Manual



PROJECTION TELEVISION

V19 / V19+ CHASSIS

SPECIFICATIONS

 Power Input : AC 120V, 60Hz

 Power Usage : 300W

 Frequency : VHF 54 ~ 470MHz

Range UHF 470 ~ 806MHz

 Antenna Input : VHF/UHF 75Ω unbalanced

2 - NTSC

1 - ATV/QAM

 CRT Size : [7 inches]

: [9 inches] WS-73909 only

 High Voltage : 32.0kV (at 0A)

 Speaker : [WS-55859]]

5" round type, full range 2 pcs. (8Ω 10W)

: [WS-65869]

6" round type, full range 2 pcs. (8Ω 10W)

: [WS-55909 / WS-65909 / WS-739090]

5" round type, full range 2 pcs. (8Ω 10W)

2" round type, tweeter 2 pcs. (8Ω 10W)

 Weight : [WS-55859 250 lbs

: [WS-55909] 256 lbs

: [WS-65869] 326 lbs

: [WS-65909] 348 lbs

: [WS-73909] 405 lbs

 Cabinet : [Model] (H)x(W)x(D)

Dimensions : [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"

 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 type)

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

: ATV / Y(G), Pr(R), Pb(B), H, V

Y: 1.0Vp-p with sync 75Ω (BNC)

Pr, Pb: 700mV 75Ω

H, V: 3.0Vp-p 75Ω

: VGA / R,G,B,V,H (15 pin D)

 Output Level : VIDEO OUT JACK (RCA Type)

1.0Vp-p 75Ω unbalanced

: AUDIO OUT JACK (RCA Type)

-4.7dBm 4.7kΩ unbalanced

 Digital Interface

: IEEE-1394 I/O Jacks

:AC-3 Digtal Audio Output

V19

MODELS

WS-55859

WS-65869

V19+

MODELS

WS-55909

WS-65909

WS-73909

WS-65869

1 2 3 4 5 6 ... 69 70

Summary of Contents

Page 1 - MITSUBISHI ELECTRIC

CAUTION:Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and"PRODUCT SAFETY NOTICE&

Page 2

Page 10MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CABINET DISASSEMBLY (REAR VIEW)WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909

Page 3 - CONTENTS

Page 11MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909SERVICING THE LENTICULAR SCREEN AND FRESNEL LENSCAUTION: Wear gloves when handling

Page 4

Page 12MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909SERVICING THE LENTICULAR SCREEN AND FRESNEL LENSCAUTION: Wear gloves when handling

Page 5 - PRODUCT SAFETY NOTICE

Page 13MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS2. Lenticular Screen and Fresnel Le

Page 6 - SAFETY PRECAUTIONS

Page 14MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909SERVICING THE DIAMONDSHIELD1. DiamondShield Removal ProcedureThe location of the

Page 7

Page 15MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Main Chassis Removal Chassis and DM Module RemovalThe chassis and DM Module can be

Page 8 - WS-65869

Page 16MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909PCB LocationsMain Components Location

Page 9

Page 17MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909DMPOWERSUPPLYATVTUNERDE-MODULATORE2PMODULEFLASH CARD SLOTCOVERDM Module Main Compon

Page 10

Page 18MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CRT REPLACEMENT1. Removal of the CRTCaution! High voltage should be completely disc

Page 11 - WS-55859

Page 19MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-739092. Installation of the CRTNote: The replacement CRT is supplied as an assembly comp

Page 12

Page 13

Page 20MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-739092. Install the Deflection Yoke on the CRT neck. [Figure 5-7]3. Install the Lens

Page 14 - Side Molding Clips

Page 21MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-739091H40%40%100%75%Monoscope SignalSplit-Field Color Bars (100% window)ELECTRICAL ADJUS

Page 15 - Main Chassis Removal

Page 22MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Initial SetupA. Option Menu SetupFollow the steps below for the initial set-up:1. S

Page 16 - Main Components Location

Page 23MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909C. A/V MemoryEach of the external inputs has its’ own Audio/Video Memory. A change

Page 17

Page 24MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Circuit Adjustment ModeMost of the adjustments can only be performed using the remo

Page 18 - CRT REPLACEMENT

Page 25MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909E. Terminating the Circuit Adjustment ModePress the MENU button on the remote han

Page 19 - 2. Installation of the CRT

Page 26MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909E. COARSE CONV (Press 5)There are four Sub Functions in the Coarse mode, COARSE GRE

Page 20

Page 27MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909E2PROM ReplacementIC7A01 stores some adjustment data. After replacing the IC, set

Page 21 - Test Signal

Page 28MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909MNTS Function (Main Decoder)IC2E00Function DisplayAdjustment Data NotesItem # Abbre

Page 22 - Initial Setup

Page 29MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CONV GREEN Items(MENU-0-1-5-9-5)No. Abbrev. DescriptionName SD HD SD HD SD HD SD HD

Page 23 - 3. Error Codes

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 3INTRODUCTION ...

Page 24 - 1 SCT 42 480i

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 30 Adjustment Test Point LocationTest PointsDT pin 3 - HV AdjustDT pin 6 - GroundDT p

Page 25

Page 31Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 26 - F. FINE CONV (Press 4)

Page 32Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 27 - JNGL Function (Jungle)

Page 33Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 28 - MNTS Function (Main Decoder)

Page 34Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 29 - CONV BLUE Items

Page 35Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 30

Page 36Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 31 - Item # Abbrev. Data

Page 37Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 32

Page 38Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput TerminalSymptom:PurposeMeasuringInstrumentTest PointMeasuringR

Page 33

Page 39MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 34

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 4Black Level ...

Page 35

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 40Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 36 - GRADATION SCALE

Page 41MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 37

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 42Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 38 - Blue MENU-0-1-5-9-3

Page 43MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 39 - Procedure

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 44Purpose:MeasuringInstrumentTest PointMeasuringRangeInput SignalExt. TriggerInput Te

Page 40

PAGE 45MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CHIP PARTS REPLACEMENTSome resistors, shorting jumpers (0 Ohm resistors),ceramic ca

Page 41

PAGE 46MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Parts OrderingTo expedite delivery of replacement parts orders, specify the followi

Page 42

PAGE 47MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909QUICK REFERENCE FOR COMMON REPLACEMENT PARTSREMOTE CONTROL290P106010 REMOTE CONTROL

Page 43

Ref # Part # Part Name & Description [#]PAGE 48Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 44

PAGE 49Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909[#] Model Legend: (1) WS-55859, (2) WS-

Page 45 - CHIP PARTS REPLACEMENT

Page 5MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909INTRODUCTIONThis service manual provides service instructions for PTV Models WS-558

Page 46 - REPLACEMENT PARTS

Ref # Part # Part Name & Description [#]PAGE 50Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 47 - MISCELLANEOUS

PAGE 51Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909[#] Model Legend: (1) WS-55859, (2) WS-

Page 48 - TRANSISTORS

Ref # Part # Part Name & Description [#]PAGE 52Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 49

PAGE 53Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909[#] Model Legend: (1) WS-55859, (2) WS-

Page 50

Ref # Part # Part Name & Description [#]PAGE 54Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 51

PAGE 55Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909[#] Model Legend: (1) WS-55859, (2) WS-

Page 52 - RESISTORS

Ref # Part # Part Name & Description [#]PAGE 56Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 53

PAGE 57Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909[#] Model Legend: (1) WS-55859, (2) WS-

Page 54 - CAPACITORS AND TRIMMERS

Ref # Part # Part Name & Description [#]PAGE 58Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-

Page 55

PAGE 59Ref # Part # Part Name & Description [#] Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS

Page 56 - SWITCHES

Page 6MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909SAFETY PRECAUTIONSNOTICE: Observe all cautions and safety related notes located insi

Page 57 - COSMETIC PARTS

PAGE 60 Ref # Part # Part Name & Description [#] Ref # Part # Part Name & Description [#]MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / W

Page 58 - ACCESSORIES

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 61STANDBY SUPPLIESREGULATOR

Page 59

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 62SWITCHEDSUPPLIESREGULATOR

Page 60

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 63DMPOWERSUPPLY

Page 61 - REGULATOR

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 64VIDEO/COLORA/V SWITCH CIRCUIT

Page 62 - SUPPLIES

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 65PCB-SIGNAL Y/C PATH

Page 63

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 66SYNC PATH

Page 64 - A/V SWITCH CIRCUIT

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 67DEFLECTION CIRCUITX-RAYPROTECT

Page 65 - PCB-SIGNAL Y/C PATH

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 68SOUND CIRCUIT

Page 66 - SYNC PATH

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 69CONVERGENCECIRCUIT

Page 67 - DEFLECTION CIRCUIT

Page 7MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CABINET DISASSEMBLY (FRONT VIEW)WS-55859*Refer to the Parts List for Part Numbers1a.

Page 68 - SOUND CIRCUIT

MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909Page 70CONTROL CIRCUIT

Page 69 - CONVERGENCE

Page 8MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CABINET DISASSEMBLY (FRONT VIEW)WS-65869*Refer to the Parts List for Part Numbers1b.

Page 70 - CONTROL CIRCUIT

Page 9MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909CABINET DISASSEMBLY (FRONT VIEW)WS-55909 / WS-65909 / WS-73909*Refer to the Parts Li