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Mitsubishi Electric WT-46807 Service Manual

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MITSUBISHI ELECTRIC
WS-73907
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
• Power
: AC 120V, 60Hz, 320W
• Frequency
: VHF 54 ~ 470MHz
Range
UHF 470 ~ 806MHz
• Antenna Input
: VHF/UHF 75Ω unbalanced
Single axis input
• CRT Size
: [WT-46807 / WS-55807 / WS-65807
WS-55857 / WS-65857 / WS-55907
WS-65907] 7 inches [WS-73907] 9 inches
• High Voltage
: 32.0kV (at 0A)
• Speaker
: [WT-46807 / WS-55807 / WS-65807
WS-55857 / WS-65857]
5" round type, full range 2 pcs. (8Ω 10W)
: [WS-55907 / WS-65907 / WS-73907]
5" round type, full range 2 pcs. (8Ω 10W)
2" round type, tweeter 2 pcs. (8Ω 10W)
• Weight
: [WT-46807] 121 lbs
: [WS-55807] 250 lbs
: [WS-65807] 323 lbs
: [WS-55857] 243.5 lbs
: [WS-65857] 321.5 lbs
: [WS-55907] 256 lbs
: [WS-65907] 348 lbs
: [WS-73907] 405 lbs
• Weight and dimensions shown are approximate.
• Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
Copyright © 2000 Mitsubishi Digital Electronics America, Inc.
Ser
Ser
Ser vice
Ser
Ser
Manual
Manual
Manual
Manual
Manual
PROJECTION TELEVISION
V17 / V17+ / V17++ CHASSIS
V17
MODELS
WT-46807
WS-55807
WS-65807
SPECIFICATIONS
9351 Jeronimo Road, Irvine, CA 92618-1904
All Rights Reserved
vice
vice
vice
vice
V17+
MODELS
WS-55857
WS-65857
• Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [WT-46807] 37.4"x41.6"x28"
: [WS-55807] 51.6"x50.6"x28.3"
: [WS-65807] 61.8"x58.7"x27.5"
: [WS-55857] 51.9"x50.7"x28.2"
: [WS-65857] 61.9"x59"x28.2"
: [WS-55907] 51.5"x49.9"x28.1"
: [WS-65907] 61.6"x58.2"x28.2"
: [WS-73907] 65.7"x64.3"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
: DVD / 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
• Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75Ω unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7kΩ unbalanced
2000
2000
2000
2000
2000
V17++
MODELS
WS-55907
WS-65907
WS-73907

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Summary of Contents for Mitsubishi Electric WT-46807

  • Page 1: Schematic Diagrams Overall Block Diagram

    : [WS-55907] 51.5"x49.9"x28.1" Single axis input : [WS-65907] 61.6"x58.2"x28.2" : [WS-73907] 65.7"x64.3"x29.8" • CRT Size : [WT-46807 / WS-55807 / WS-65807 WS-55857 / WS-65857 / WS-55907 • Input Level : VIDEO IN JACK (RCA Type) WS-65907] 7 inches [WS-73907] 9 inches 1.0Vp-p 75Ω...

  • Page 3: Table Of Contents

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 / WS-65807 / WS-65857 / WS-65907 / WS-73907 CONTENTS INTRODUCTION ..........................5 PRODUCT SAFETY NOTICE ......................5 SAFETY PRECAUTIONS ......................... 6 DISASSEMBLY Cabinet Disassembly (Front View) WT-46807 ............................7 WS-55807 / WS-65807 ........................8 WS-55857 / WS-65857 ........................

  • Page 4: Pcb-Signal

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 / WS-65807 / WS-65857 / WS-65907 / WS-73907 Sub Contrast ........................37 Dynamic Focus Preset ......................38 Electrostatic Focus ......................38 Lens Focus .......................... 39 Character Position ......................39 Deflection/Convergence Geometry Presets ................ 40 Deflection Circuit Geometry Adjustments ................

  • Page 5: Introduction

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 INTRODUCTION This service manual provides service instructions for PTV Models WT-46807, WS-55807 and WS-65807 which use the V17 chassis, PTV Models WS-559857, and WS-65857 which use the V17+ chassis, and PTV Models WS-55907, WS-65907 and WS-73907 which use the V17++ chassis.

  • Page 6: Safety Precautions

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SAFETY PRECAUTIONS NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on the receiver chassis. WARNING: Operation of this receiver outside the cabinet or with the cover removed presents a shock hazard from the receiver's power supplies.

  • Page 7: Cabinet Disassembly (Front View)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (FRONT VIEW) WT-46807 *Refer to the Parts List for Part Numbers 1a. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward.

  • Page 8: Pcb-2Hdw (Main)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (FRONT VIEW) WS-55807 / WS-65807 *Refer to the Parts List for Part Numbers 1b. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward.

  • Page 9: Pcb-2Hdw (Out)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (FRONT VIEW) WS-55857 / WS-65857 *Refer to the Parts List for Part Numbers 1c. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward.

  • Page 10: Pcb-Terminal

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (FRONT VIEW) WS-55907 / WS-65907 / WS-73907 *Refer to the Parts List for Part Numbers 1d. Front Cabinet Disassembly 1. Remove the Cover Front, the two Speaker Grilles and Cover Control by pulling forward.

  • Page 11: Cabinet Disassembly (Rear View)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (REAR VIEW) WT-46807 *Refer to the Parts List for Part Numbers 2a. Rear Cabinet Disassembly 1. Remove 15 screws (a) holding the Back Board.

  • Page 12: Pcb-3Dyc/Main Decoder

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET DISASSEMBLY (REAR VIEW) WS-55807 / WS-55857 / WS-55907 / WS-65807 / WS-65857 / WS-65907 / WS-73907 *Refer to the Parts List for Part Numbers 2b.

  • Page 13: Cabinet Separation Procedure Ws-65807 / Ws-65857 / Ws-65907 / Ws-73907

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CABINET SEPARATION PROCEDURE MODELS: WS-65807, WS-65857, WS-65907, WS-73907 The cabinets for the above models are assembled in two pieces. The two pieces may be separated to allow easier delivery and setup.

  • Page 14: Servicing The Lenticular Screen And Fresnel Lens

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens. This prevents cuts and finger prints. Do not place Fresnel Lens in the sun.

  • Page 15: Pcb-Bmp (2)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens. This prevents cuts and finger prints. Do not place Fresnel Lens in the sun.

  • Page 16: Lenticular Screen And Fresnel Lens Installation

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS 2. Lenticular Screen and Fresnel Lens Installation. Note: Store the Lenticular Screen and Fresnel Lens in a cool dry place. High humidity may deform the Lenticular Screen and Fresnel Lens.

  • Page 17: Servicing The Diamondshield

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SERVICING THE DIAMONDSHIELD™ 1. DiamondShield™ Removal Procedure The location of the DiamondShield molding clips varies between models, top and bottom, or sides. Use the appropriate disassembly procedure given below.

  • Page 18: Pcb Locations And Chassis Removal

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 PCB Locations and Chassis Removal Chassis Removal 1) Remove the 3 screws “a” securing the rear of the chassis. 2) Pull up slightly of the 2 front chassis locks “b”.

  • Page 19: Crt Replacement

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 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.

  • Page 20: Crt Installation

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 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.
  • Page 21 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 2. Install the Deflection Yoke on the CRT neck. [Figure 5-7] 3. Install the Lens that was removed in steps 8 and 9 of Removal Of The CRT. [ Figures 5-1 and 5-2 ] a) Position the Lens so that the Label faces the direction shown in Figure 5-8.

  • Page 22: Electrical Adjustments

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 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) •...
  • Page 23 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 B. Default Settings MAIN MENU DEFAULT SETTINGS SETUP CHANNEL EDIT ADVANCED FEATURES Memorize Channels ANT A Input ANT A SD Video Format 480P Language English...

  • Page 24: Self Diagnostics

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 4. Self 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: •...
  • Page 25 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 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.

  • Page 26: Convergence Adjustment Mode

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 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.
  • Page 27 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 E. COARSE CONV (Press 5) There are four Sub Functions in the Coarse mode, COARSE GREEN, COARSE RED, COARSE BLUE and DF. • COARSE GREEN ..used to make Coarse Raster Geometry Adjustments.

  • Page 28: E2Prom Replacement

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 E2PROM Replacement IC7C01 and IC7C02 store the 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.
  • Page 29 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 MAIN MATRIX Function IC6M00 Function Displa y Adjustm e nt Da ta Initia l Note s Ite m # Abbre v. De scription Ra nge...
  • Page 30 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CONV MISC Items (MENU-8-2-5-9-6) Item Abbrev. Description Data Notes Number Name HVOL High Voltage Control HV Adj. STLN Horiz. Correction Start Line Number Preset FPHS Fine H-Phase of Correction Signal "...

  • Page 31: Adjustment Test Points

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Adjustment Test Point Locations Page 31...

  • Page 32: Adjustment Procedures

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: Check the input signal level to the MCS circuit [Audio Circuit] Symptom: Distorted sound during a stereo broadcast. 1. MCS Input Level Measuring Oscilloscope Instrument 1.

  • Page 33: High Voltage Regulation

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: To set the CRT Anode voltage. [HV Circuit] Dark Picture Symptom: 3. HV Regulation Measuring DC Voltmeter Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff.

  • Page 34: Side By Side Sub Picture Tint

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: To match the sub picture color to that of the main picture. [Video Circuit] Symptom: 5. Side by Side Sub Picture Tint Main and sub pictures colors differ.

  • Page 35: Crt Cutoff

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [CRT Circuit] Purpose: To set the cutoff point for all three CRTs. 7. CRT Cutoff Monochrome has a color tint, or incorrect brightness. Symptom: Measuring...

  • Page 36: White Balance (Hd)

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: [CRT Circuit] To set the CRTs white level in the HD mode. Symptom: 9. White Balance (HD) Monchrome pictures have a color tint. Measuring...

  • Page 37: Black Level

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: [Video Circuit] To set the black level of the picture. Excess or insufficient brightness. Symptom: 11. Black Level Measuring ----- 1. Supply a Monoscope signal to a Video Input.

  • Page 38: Dynamic Focus Preset

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Purpose: [Focus Circuit] To improve edge focus. Symptom: 13. Dynamic Focus Preset Poor focus at the edges of the screen. Measuring ----- Instrument 1. Supply a Monoscope signal to a Video Input 2.

  • Page 39: Lens Focus

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Video Circuit] Purpose: To set the Lens position for optimum focus. 15. Lens Focus Poor focus Symptom: Measuring ----- Note: This adjustment must follow item 6 (Electrostatic Focus). Perform this Instrument adjustment for RED, GREEN, and BLUE monochrome pictures.

  • Page 40: Deflection/Convergence Geometry Presets

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Conv/Defl] Purpose: To preset data controlling raster geometry 18. Geometry Preset Raster distortion. Symptom: Measuring ----- Note: This procedure is usually only necessary if: Instrument •...

  • Page 41: Deflection Circuit Geometry Adjustments

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Deflection Circuit] Purpose: To set the height, width and linearity of the raster. 19: Deflection Geometry Symptom: Incorrect height, width and/or linearity. Height & Width Adjustment...

  • Page 42: Convergence Circuit Geometry Adjustments

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Convergence Circuit] Purpose: To set the Convergence circuit geometry adjustments. 20. Convergence Geometry Raster distortion at the top, bottom or sides of the picture. Symptom:...

  • Page 43: Centering And Static Convergence

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Convergence Circuit] Purpose: To converge red, green and blue at the center of the screen 21. Centering and Static Symptom: Color edging over the entire picture.

  • Page 44: Coarse Convergence Adjustments

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Convergence Circuit] Purpose: To converge red and blue on green at the edges of the screen. 22. Coarse Convergence Color edging at the top, bottom and sides of the screen.

  • Page 45: Fine Convergence Adjustments

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [Convergence Circuit] Purpose: To converge red, green and blue at the edges of the screen 23. Fine Convergence Symptom: Color edging at the edges of the picture.

  • Page 46: Chip Parts Replacement

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CHIP PARTS REPLACEMENT Some resistors, shorting jumpers (0 Ohm resistors), Chip Parts Removal (Transistors) ceramic capacitors, transistors and diodes are chip parts. Melt the solder of one lead and lift the side of The following precautions should be taken when replacing that lead upward.

  • Page 47: Replacement Parts

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 REPLACEMENT PARTS Parts Ordering To expedite delivery of replacement parts orders, specify the following: Model Number/Serial Number Part Number and description Quantity Note: Unless complete information is supplied, delay in processing of orders will result.

  • Page 48: Quick Reference List

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 QUICK REFERENCE FOR COMMON REPLACEMENT PARTS CRT ASSEMBLIES MODEL ASSY-CRT-RED ASSY-CRT-GREEN ASSY-CRT-BLUE WT-46807 *251C208040 *251C208050 *251C208060 WS-55807 *251C207040 *251C207050 *251C207060 WS-55857 *251C208010 *251C208020 *251C208030 WS-55907...

  • Page 49: Service Parts List

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 50 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 51 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 52 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 53 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 54 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 55 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 56 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 57 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 58 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 59 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 60 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 61 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 62 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 63 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description...
  • Page 64 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description Ref # Part # Part Name &...
  • Page 65 MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 [#] Model Legend: (1) WS-55807, (2) WS-55857, (3) WS-55907, (4) WS-65807, (5) WS-65857, (6) WS-65907, (7) WS-73907, (8) WT-46807 Ref # Part # Part Name & Description Ref # Part # Part Name &...

  • Page 66: Standby Supply Regulator

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 STANDBY SUPPLY REGULATOR Page 66...

  • Page 67: Switched Supply Regulator

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Page 67...

  • Page 68: Video / Color A/V Switch Circuit

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Page 68...

  • Page 69: Video / Color Signal Path

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Page 69...

  • Page 70: Sync Signal Path

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SYNC PATH Page 70...

  • Page 71: Deflection / Hv

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 DEFLECTION CIRCUIT X-RAY PROTECT Page 71...

  • Page 72: Sound Circuit

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 SOUND CIRCUIT Page 72...

  • Page 73: Convergence

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 Page 73...

  • Page 74: Control Circuit

    MODELS: WT-46807 / WS-55807 / WS-55857 / WS-55907 /WS-65807 / WS-65857 / WS-65907 / WS-73907 CONTROL CIRCUIT Page 74...
  • Page 84 Service Manual MITSUBISHI ELECTRIC PROJECTION TELEVISION V17 / V17+ / V17++ CHASSIS V17+ V17++ MODELS MODELS MODELS WT-46807 WS-55857 WS-55907 WS-55807 WS-65857 WS-65907 WS-65807 WS-73907 WS-73907 CAUTION: Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and "PRODUCT SAFETY NOTICE"...

This manual is also suitable for:

Ws-55807Ws-65807Ws-55857Ws-65857Ws-55907Ws-65907 ... Show all

Table of Contents