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Mitsubishi Electric WT-46809 Service Manual

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MITSUBISHI ELECTRIC
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 Input
: AC 120V, 60Hz
• Power
: 280W
Consumption
• Frequency
: VHF 54 ~ 470MHz
Range
UHF 470 ~ 806MHz
• Antenna Input
: VHF/UHF 75Ω unbalanced
Single axis input
• CRT Size
: [7 inches]
• High Voltage
: 32.0kV (at 0A)
• Speaker
: [WT-46809 / WS-55809 / WS-65809
5" round type, full range 2 pcs. (8Ω 10W)
: [WS-55819 / WS-65819 / WS-73907]
6" round type, full range 2 pcs. (8Ω 10W)
• Weight
: [WT-46809] 170 lbs
: [WS-55809] 250 lbs
: [WS-55819] 244.5 lbs
: [WS-65809] 323 lbs
: [WS-65819] 323 lbs
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
Copyright © 2001 Mitsubishi Digital Electronics America, Inc.
WS-55809
SPECIFICATIONS
• Weight and dimensions shown are approximate.
• Design specifications are subject to change without notice.
9351 Jeronimo Road, Irvine, CA 92618-1904
All Rights Reserved
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Manual
Manual
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Manual
Manual
PROJECTION TELEVISION
V18 / V18+ CHASSIS
V18
MODELS
WT-46809
WS-55809
WS-65809
• Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [WT-46809] 38.4"x42.8"x27.1"
: [WS-55809] 50"x50.6"x26.3"
: [WS-55819] 50.4"x50.6"x26.4"
: [WS-65809] 61.8"x58.7"x28.1"
: [WS-65819] 61.8"x58.8"x28.1"
• Input Level
: VIDEO IN JACK (RCA Type)
: AUDIO IN JACK (RCA Type)
: S-VIDEO IN JACK
: DVD / Y, Cr, Cb (RCA Type)
: ATV / Y(G), Pr(R), Pb(B), H, V
• Output Level
: VIDEO OUT JACK (RCA Type)
: AUDIO OUT JACK (RCA Type)
2001
2001
2001
2001
2001
V18+
MODELS
WS-55819
WS-65819
1.0Vp-p 75Ω unbalanced
-4.7dBm 43kΩ unbalanced
(Y/C separate type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75Ω unbalanced
Y: 1.0 Vp-p Cr, Cb: 700mVp-p
Y: 1.0Vp-p with sync 75Ω (BNC)
Pr, Pb: 700mV 75Ω
H, V: 3.0Vp-p 75Ω
1.0Vp-p 75Ω unbalanced
-4.7dBm 4.7kΩ unbalanced

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Summary of Contents for Mitsubishi Electric WT-46809

  • Page 1: Schematic Diagrams Overall Block Diagram

    • High Voltage : 32.0kV (at 0A) : S-VIDEO IN JACK (Y/C separate type) • Speaker : [WT-46809 / WS-55809 / WS-65809 Y:1.0 Vp-p C:0.286Vp-p(BURST) 5" round type, full range 2 pcs. (8Ω 10W) 75Ω unbalanced : [WS-55819 / WS-65819 / WS-73907] : DVD / Y, Cr, Cb (RCA Type) 6"...

  • Page 3: Table Of Contents

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CONTENTS INTRODUCTION ..........................5 PRODUCT SAFETY NOTICE ......................5 SAFETY PRECAUTIONS ........................6 DISASSEMBLY Cabinet Disassembly (Front View) ....................7 WT-46809 ..........................7 WS-55809 / WS-65809 ......................8 WS-55819 / WS-65819 ......................9 Cabinet Disassembly (Rear View) .....................

  • Page 4: Pcb-Terminal

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Dynamic Focus Preset ......................37 Electrostatic Focus & Alignment Magnet Adjustment ............37 Lens Focus .......................... 38 Character Position ....................... 38 Deflection/Convergence Geometry Presets ................39 Deflection Circuit Geometry Adjustments ................40 Convergence Circuit Geometry Adjustments ................

  • Page 5: Introduction

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 INTRODUCTION This service manual provides service instructions for PTV Models WT-46809, WS-55809 and WS-65809 which use the V18 chassis, and PTV Models WS-55819, and WS-65819 which use the V18+ chassis. Service personnel should read this manual thoroughly before servicing these chassis.

  • Page 6: Safety Precautions

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CABINET DISASSEMBLY (FRONT VIEW) WT-46809 *Refer to the Parts List for Part Numbers 1a. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward. 2. Remove the Board Front by removing 4 screws (a).

  • Page 8: Pcb-3Dyc

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CABINET DISASSEMBLY (FRONT VIEW) WS-55809 / WS-65809 *Refer to the Parts List for Part Numbers 1b. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward. 2. Remove the Board Front by removing 4 screws (a).

  • Page 9: Pcbs-Conv Gen / Jungle

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CABINET DISASSEMBLY (FRONT VIEW) WS-55819 / WS-65819 *Refer to the Parts List for Part Numbers 1c. Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward. 2. Remove 2 screws (a) to remove the Control Panel.

  • Page 10: Cabinet Disassembly (Rear View)

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CABINET DISASSEMBLY (REAR VIEW) WT-46809 *Refer to the Parts List for Part Numbers 2a. Rear Cabinet Disassembly 1. Remove 15 screws (a) holding the Back Board. 2. Remove the 13 screws (b) holding the Back Cover.

  • Page 11: Pcb-2Hdw-1

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CABINET DISASSEMBLY (REAR VIEW) WS-55809 / WS-55819 / WS-65809 / WS-65819 *Refer to the Parts List for Part Numbers 2b. Rear Cabinet Disassembly 1. Remove 12 screws (a) holding the Back Board.

  • Page 12: Servicing The Lenticular Screen And Fresnel Lens

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 13: Pcb-2Hdw-3

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 14: Lenticular Screen And Fresnel Lens Installation

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 15: Servicing The Diamondshields

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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. Note: Wear gloves when handling the DiamondShield™ to prevent finger prints.

  • Page 16: Chassis Removal

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 17: Crt Replacement

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 18: Crt Installation

    MODELS: MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 19 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 20: Electrical Adjustments

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 21: Initial Setup

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 3. Initial Setup A. Option Menu Setup Follow the steps below for the initial set-up: (MENU-0-1-7-0) 1. Select the "MENU" display by pressing the "MENU" button once. OPTION MENU 2. Press the number buttons "0", "1", "7", "0" in sequence to select Initial the "OPTION MENU"...

  • Page 22: Led Indicator Diagnostics

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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.
  • Page 23 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 A. Activating the Circuit Adjustment Mode The current signal source determines if the activated Adjustment Mode is NTSC or HD. 1. Select the signal source (NTSC or HD). 2. Press the "MENU" button on a remote hand unit.

  • Page 24: Convergence Adjustment Mode

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 F. Toggle Between Reception Modes Pressing “3” when in the Adjustment Mode toggles between NTSC, HD, 480P and VGA. However data changes are not automatically saved. Press “ENTER” to save data before pressing “3”.
  • Page 25 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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.
  • Page 26 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Cursor Coordinates Specific intersections in the Cross- hatch are assigned vertical and horizontal coordinates. These are shown in the adjacent diagram. The Cursor can only be moved to those positions that have coordinates assigned.

  • Page 27: E2Prom Replacement

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 E2PROM Replacement IC7C01 and IC7C02 stores 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 28 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 MAIN MATRIX Function IC6M00 Function Display Adjustment Data Initial Notes Item # Abbrev. Description Range Data TNTM Main Tint 0~63 Preset COLM Main Color 0~63 " YDRM Main Gain Control...
  • Page 29 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CONV MISC Items (MENU-0-1-5-9-6) Item Abbrev. Description Data Notes Number Name HVOL High Voltage Control HV Adj. VSTR Vertical Correction Signal Start Point Preset VCNT Vert. Correction Increment per Line "...

  • Page 30: Adjustment Test Points

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Adjustments Test Point Locations Test Points DT pins 3 & 6 ... HV Regulation Adjustment DT pins 7 & 8 ..Sub Contrast JA pins 6 & 8 ... Audio Adjustments EA pin 1 &...

  • Page 31: Adjustment Procedures

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 1. Supply an RF MCS signal to the Ant A input, 300 Hz at 100% modulation Instrument (25 kHz deviation) for right and left channels.

  • Page 32: High Voltage Regulation

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: To set the CRT Anode voltage. [HV Circuit] Symptom: Dark Picture 3. HV Regulation Measuring DC Voltmeter Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff. Instrument Test Point DT connector pins 3 &...

  • Page 33: Side By Side Sub Picture Tint

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: To match the sub picture color to that of the main picture. [Video Circuit] 5. Side by Side Sub Picture Tint Symptom: Main and sub pictures colors differ. Measuring...

  • Page 34: Crt Cutoff

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: [CRT Circuit] To set the cutoff point for all three CRTs. 7. CRT Cutoff Symptom: Monochrome has a color tint, or incorrect brightness. Measuring Oscilloscope Instrument Note: Use the Expand mode (full screen)

  • Page 35: White Balance (Hd)

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [CRT Circuit] Purpose: To set the CRTs white level in the HD mode. 9. White Balance (HD) Symptom: Monchrome pictures have a color tint. Measuring ----- Instrument 1. Supply an HD Full White Raster signal to the DTV Inputs.

  • Page 36: Black Level

    4. Connect a 3ma DC meter between DT connector pins 7 and 8. Positive lead to pin 7. Measuring ----- Range 5. Adjust Item “1 SCT” for 600µA ±10µA (575µa ±10µa on the WT-46809). Note the data value. Input Signal Grayscale 6. Press Enter to save data.

  • Page 37: Dynamic Focus Preset

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [Focus Circuit] Purpose: To improve edge focus. 13. Dynamic Focus Preset Symptom: Poor focus at the edges of the screen. Measuring ----- 1. Supply a Monoscope signal to a Video Input Instrument 2.

  • Page 38: Lens Focus

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: [Video Circuit] To set the Lens position for optimum focus. 15. Lens Focus Symptom: Poor focus Measuring ----- Instrument Note: This adjustment must follow item 6 (Electrostatic Focus). Perform this adjustment for RED, GREEN, and BLUE monochrome pictures.

  • Page 39: Deflection/Convergence Geometry Presets

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [Conv/Defl] To preset data controlling raster geometry Purpose: 18. Geometry Preset Raster distortion. Symptom: ----- Note: This procedure is usually only necessary if: Measuring Instrument • An E2PROM is replaced in the Control or Convergence circuits.

  • Page 40: Deflection Circuit Geometry Adjustments

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: [Deflection Circuit] To set the height, width and linearity of the raster. Symptom: 19: Deflection Geometry Incorrect height, width and/or linearity. Height & Width Adjustment Measuring ----- Instrument Preliminary: Test Point 1.

  • Page 41: Convergence Circuit Geometry Adjustments

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [Convergence Circuit] To set the Convergence circuit geometry adjustments. Purpose: 20. Convergence Geometry Raster distortion at the top, bottom or sides of the picture. Symptom: Adjustment ----- Note: Deflection Circuit Geometry must be performed before this adjustment.

  • Page 42: Centering And Static Convergence

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: [Convergence Circuit] To converge red, green and blue at the center of the screen Symptom: 21. Centering and Static Color edging over the entire picture. Convergence Measuring ----- Instrument...

  • Page 43: Coarse Convergence Adjustments

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [Convergence Circuit] To converge red and blue on green at the edges of the Purpose: screen. 22. Coarse Convergence Color edging at the top, bottom and sides of the screen.

  • Page 44: Fine Convergence Adjustments

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Purpose: [Convergence Circuit] To converge red, green and blue at the edges of the screen Symptom: 23. Fine Convergence Color edging at the edges of the picture. Measuring ----- Instrument...

  • Page 45: Chip Parts Replacement

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 46: Replacement Parts

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 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 47: Quick Reference List

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 QUICK REFERENCE FOR COMMON REPLACEMENT PARTS CRT ASSEMBLIES MODEL ASSY-CRT-RED ASSY-CRT-GREEN ASSY-CRT-BLUE WT-46809 *251C212070 *251C212080 *251C212090 WS-55809 *251C212010 *251C212020 *251C212030 WS-55819 *251C212010 *251C212020 *251C212030 WS-65809 *251C212040 *251C212050 *251C212060 WS-65819 *251C212040...

  • Page 48: Service Parts List

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description IC7C10 275P419010...
  • Page 49 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description Type Part No.
  • Page 50 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description D9A01...
  • Page 51 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description L7E01...
  • Page 52 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description VARIABLE RESISTORS Common Resistors ( By Ref.
  • Page 53 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R5A38 103C397070 R-METAL-P - 3W 0.56-K...
  • Page 54 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R8C27...
  • Page 55 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C2Y01...
  • Page 56 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C9A42...
  • Page 57 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description 935D520003...

  • Page 58: Screen Parts List

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 Ref # Part # Part Name & Description Ref # Part # Part Name & Description SCREEN ASSEMBLY PARTS...
  • Page 59 MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 [#] Model Legend: (1) WS-55809, (2) WS-55819, (3) WS-65809, (4) WS-65819, (5) WT-46809 WS-55819 WS-65819 Figure 2: Screen Assembly Parts PAGE 59...

  • Page 60: Circuitry Block Diagrams Standby Supplies Regulator

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Page 60...

  • Page 61: Switched Supplies Regulator

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Page 61...

  • Page 62: Video/Color A/V Switch Circuit

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 VIDEO/COLOR A/V SWITCH CIRCUIT Page 62...

  • Page 63: Video / Color Signal Path

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 PCB-SIGNAL Y/C PATH Page 63...

  • Page 64: Sync Signal Path

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 SYNC PATH Page 64...

  • Page 65: Deflection / Hv

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 DEFLECTION CIRCUIT X-RAY PROTECT Page 65...

  • Page 66: Sound Circuit

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 SOUND CIRCUIT Page 66...

  • Page 67: Convergence

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 Page 67...

  • Page 68: Control Circuitry

    MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819 CONTROL CIRCUIT Page 68...
  • Page 69 Service 2001 Manual MITSUBISHI ELECTRIC PROJECTION TELEVISION V18 / V18+ CHASSIS V18+ MODELS MODELS WT-46809 WS-55819 WS-55809 WS-65819 WS-65809 WS-55809 CAUTION: Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and "PRODUCT SAFETY NOTICE" contained in this manual.

This manual is also suitable for:

Ws-55819Ws-55809Ws-65819Ws-65809

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