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Mitsubishi Electric WS-A48 Service Manual
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Mitsubishi Electric WS-A48 Service Manual

Mitsubishi Electric WS-A48 Service Manual

Projection television v20b chassis
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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
: AC 120V, 60Hz
240W (Except WS-73411)
275W (WS-73411 Only)
• Frequency
: VHF 54 ~ 470MHz
Range
UHF 470 ~ 806MHz
• Antenna Input
: VHF/UHF 75Ω unbalanced
• CRT Size
: 7 inches
• High Voltage
: 32.0kV (at 0A)
• Weight / Cabinet Demensions
Model
Weight
Height Width Depth
VS-A50
200 lbs
50.3"
WS-A48
171.5 lbs
49"
WS-A55
237 lbs
50"
WS-A65
326.5 lbs
61.9"
• Weight and dimensions shown are approximate.
• Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
Copyright © 2002 Mitsubishi Digital Electronics America, Inc.
Service
Manual
SPECIFICATIONS
42.4"
23.6"
44.5"
23"
50.6"
26.3"
59"
28.1"
9351 Jeronimo Road, Irvine, CA 92618-1904
All Rights Reserved
PROJECTION TELEVISION
V20B CHASSIS
V20B
MODELS
WS-A48
VS-A50
WS-A55
WS-A65
• Speaker
: [VS-A50]
Two 4" round, full range (8Ω 5W)
: [WS-A48 / WS-A55 / WS-A65]
Two 5" round, full range (8Ω 10W)
• 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
: ATV / Y(G), Pr(R), Pb(B), H, V
Y 1.0Vp-p with sync 75Ω (RCA Type)
• Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75Ω unbalanced
: AUDIO OUT JACK (RCA
-4.7dBm 4.7k
2002
2002
2002
2002
2002
Pr, Pb: 700mV 75Ω
H, V: 3.0Vp-p 75Ω
Type)
Ω
unbalanced

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Summary of Contents for Mitsubishi Electric WS-A48

  • Page 1: Schematic Diagrams Overall Block Diagram

    : [VS-A50] • Power : AC 120V, 60Hz Two 4" round, full range (8Ω 5W) 240W (Except WS-73411) : [WS-A48 / WS-A55 / WS-A65] 275W (WS-73411 Only) Two 5" round, full range (8Ω 10W) • Frequency : VHF 54 ~ 470MHz •...

  • Page 3: Table Of Contents

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CONTENTS INTRODUCTION ..........................5 PRODUCT SAFETY NOTICE ......................5 SAFETY PRECAUTIONS ........................6 CABINET DISASSEMBLY WS-A48 (Front View) ......................7 WS-A48 (Rear View) ......................8 VS-A50 / WS-A55 / WS-A65 (Front View) ................9 VS-A50 / WS-A55 / WS-A65 (Rear View) ................

  • Page 4: Pcb-Terminal (Input Sw)

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 On Screen Display Character Position ................. 35 Deflection/Convergence Geometry Presets ................36 Deflection Circuit Geometry Adjustments ................37 Convergence Circuit Geometry Adjustments ................ 38 Centering and Static Convergence ..................39 Coarse Convergence Adjustments ..................40 Fine Convergence Adjustments ....................

  • Page 5: Introduction

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 INTRODUCTION This service manual provides service instructions for the PTV Models listed below. Service personnel should read this manual thoroughly before servicing these chassis. V20B CHASSIS VS-A50 WS-A48 WS-A55 WS-A65 This service manual includes: 1.

  • Page 6: Safety Precautions

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CABINET DISASSEMBLY (FRONT VIEW) WS -A48 *Refer to PARTS LIST for Part Numbers Front Cabinet Disassembly 1. Remove the Speaker Grille by pulling forward. 2. Remove the Board-Front by removing screws "a".

  • Page 8: Ws-A48 (Rear View)

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CABINET DISASSEMBLY (REAR VIEW) WS-A48 Rear Cabinet Disassembly 1. Remove the Back Board by removing screws "a", “b” and “c”. 2. Remove the Back Cover by removing screws "e". 3. Remove 4 screws "d" securing the Light Box Assembly.

  • Page 9: Vs-A50 / Ws-A55 / Ws-A65 (Front View)

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CABINET DISASSEMBLY (FRONT VIEW) VS-A50 WS-A55 WS-A65 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 screws "b". Disconnect all cable harnesses between the Screen Assembly and the PCB-Signal.

  • Page 10: Vs-A50 / Ws-A55 / Ws-A65 (Rear View)

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CABINET DISASSEMBLY (REAR VIEW) VS-A50 WS-A55 WS-A65 Rear Cabinet Disassembly 1. Remove the Back Board by removing screws "a". 2. Remove the Board Slide by removing screws “b”. 3. Remove the two Board Shelves by removing screws “c”.

  • Page 11: Servicing The Lenticular Screen And Fresnel Lens

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS VS-A50 WS-A55 WS-A65 1. Removal of the Lenticular Screen and Fresnel Lens CAUTION: Wear gloves when handling the Lenticular Screen and the Fresnel Lens. This prevents cuts and finger prints. Do not place the Fresnel Lens in the sun.

  • Page 12: Ws-A48

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS WS-A48 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: Lenticular Screen And Fresnel Lens Installation

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 2. Installation of the Lenticular Screen and Fresnel Lens Note: Store the Lenticular Screen and Fresnel Lens in a cool dry place. High humidity may deform the Lenticular Screen and Fresnel Lens.

  • Page 14: Cabinet Separation

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CABINET SEPARATION PROCEDURE (WS-A65) Model WS-A65 cabinet is assembled in two pieces. These two pieces may be separated to allow easier delivery and setup. Cabinet Separation Precedure 1. Remove the Screen Assembly and disconnect...

  • Page 15: Servicing The Diamondshield

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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.

  • Page 16: Servicing Pcbs

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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.

  • Page 17: Second Anode Lead Removal

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 ANODE LEAD REMOVAL CAUTION: To prevent damage, the following procedure must be used when removing an Anode Lead from the Flyback Transformer. 2) While holding the lead down rotate 1) Push the Anode Lead down.

  • Page 18: Crt Installation

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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.
  • Page 19 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 1. Carefully position the replacement CRT and fasten in place using 4 screws "d". [Figure 5-5] 2. Install the Deflection Yoke on the CRT neck. [Figure 5-6] 3. Install the Lens that was removed in steps 5 and 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.

  • Page 20: Electrical Adjustments

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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) •...

  • Page 21: Initial Setup

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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 "2", "2", "7", "0" in sequence to select the "OPTION MENU" display.

  • Page 22: Led Indicator Diagnostics

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Items in the table below are set to following after Initalization. AV Memory Initial Settings Ant-A NTSC COMP. A/V Memory Ant-B 1/2/3 Contrast Brightness Sharpness Color Tint High High High High Color Temp.

  • Page 23: Circuit Adjustment Mode

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 5. Circuit Adjustment Mode Except for the following, all adjustment items must be performed using the remote hand unit. FUNCTION CHASSIS • Lens Focus • Electrostatic Focus Video Chr A. Activating the Circuit Adjustment Mode 1.

  • Page 24: Convergence Adjustment Mode

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 D. Saving Adjustment Data Press “ENTER” to save adjustment data in memory. The character display turns red for approximately one second in this step. Note: If the circuit adjustment mode is terminated without pressing “ENTER”, changes in adjustment data are not saved.
  • Page 25 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Use the VIDEO button to select an item. Use the ADJUST buttons to change data. Note: When Item “1 HVOL” is selected the screen goes black except for the data display. This occurs since a black screen is required when making the HV Regulation adjustment.

  • Page 26: Adjustment Items List

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Cursor Coordinates Specific intersections in the Crosshatch are assigned vertical and horizontal coordinates. These are shown in the preceeding diagram. The Cursor can only be moved to those positions that have coordinates assigned. If the Cursor is at coordinates outside the screen area, the Cursor will not be visible.
  • Page 27 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Deflection Jungle Menu-2-2-5-7 48" 50" 55" 65" Item# Abbrev. Description Range HD NTSC HD NTSC HD NTSC HD NTSC HWID Width 0~63 HKEY Horiz. Keystone 0~63 EWPT Top EW-PCC 0~63 VHGT Height 0~63 VLIN Vert.
  • Page 28 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 COARSECONV GREEN(MENU-2-2-5-9-5) # Abbrev. Description WS-A48 VS-A50 WS-A55 WS-A65 SD HD SD HD SD HD SD HD 1 HSTA Horiz. Position 2 VSTA Vert. Position 3 SKEW Skew(Y axis) 4 TILT Tilt (Xaxis) 5 HWID Width 6 HLIN Horiz.

  • Page 29: Adjustment Test Points

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Adjustment Test Point Location Test Points DT pin 3 - HV Adjust DT pin 6 - Ground DT pin 7 - 12 Volts DT pin 8 - ACL JA pin 17 - Main Picture (Y)

  • Page 30: Adjustment Procedures High Voltage Regulation

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Purpose: To set the CRT Anode voltage. [HV Circuit] Symptom: Dark Picture 1. HV Regulation Measuring DC Voltmeter Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff. Instrument Test Point DT connector pins 3 &...

  • Page 31: Main/Sub Color Level

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Purpose: To match the sub picture color to that of the main picture. [Video Circuit] 3. Main/Sub Color Level Symptom: Main and sub pictures colors differ. Measuring Oscilloscope Instrument 1. Supply an NTSC signal to an External Video Input.

  • Page 32: White Balance (Ntsc)

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Purpose: [CRT Circuit] To set the CRTs white level in the NTSC mode. Symptom: 5. White Balance (NTSC) Monochrome has a color tint. Measuring Note: Use the “FORMAT” button to activate the Expand mode (full screen).

  • Page 33: Black Level

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Purpose: [Video Circuit] To set the black level of the picture. Excess or insufficient brightness. Symptom: 7. Black Level Measuring ----- 1. Supply a Monoscope signal to a Video Input. Instrument 2. Activate the Adjust Mode, Video Chroma Function.

  • Page 34: Dynamic Focus Preset

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Purpose: [Focus Circuit] To improve edge focus. Symptom: 9. Dynamic Focus Preset Poor focus at the edges of the screen. Measuring ----- Instrument 1. Supply a Monoscope signal to a Video Input 2.

  • Page 35: Electrostatic Focus & Alignment Magnet Adjustment

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [CRT Circuit] Purpose: To set electrostatic focus to the optimum point. Poor focus. 11. Electrostatic Focus & Symptom: (Alignment Magnet) Measuring ----- Instrument Note: This adjustment must be performed after the Sub Contrast adjustment.

  • Page 36: Deflection/Convergence Geometry Presets

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Conv/Defl] To preset data controlling raster geometry Purpose: 13. Geometry Preset Raster distortion. Symptom: Measuring ----- Instrument Note: This procedure is usually only necessary if an E2PROM is replaced in the TV Control or Convergence circuits.

  • Page 37: Deflection Circuit Geometry Adjustments

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Deflection Circuit] Purpose: To set the height, width and linearity of the raster. 14: Deflection Geometry Symptom: Incorrect height, width and/or linearity. Height & Width Adjustment Measuring ----- Instrument Preliminary: 1. DO NOT change the initial values for “#8 VLIN” in the Defl. Jungle Function.

  • Page 38: Convergence Circuit Geometry Adjustments

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Convergence Circuit] To set the Convergence circuit geometry adjustments. Purpose: 15. Convergence Geometry Symptom: Raster distortion at the top, bottom or sides of the picture. Adjustment Measuring ----- Note: Deflection Circuit Geometry must be performed before this adjustment.

  • Page 39: Centering And Static Convergence

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Convergence Circuit] Purpose: To converge red, green and blue at the center of the screen 16. Centering and Static Symptom: Color edging over the entire picture. Convergence Measuring ----- Instrument Preliminary Degauss the shield cover and bracket unit of the CRT assembly and chassis.

  • Page 40: Coarse Convergence Adjustments

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Convergence Circuit] Purpose: To converge red and blue on green at the edges of the screen. 17. Coarse Convergence Symptom: Color edging at the top, bottom and sides of the screen. Measuring...

  • Page 41: Fine Convergence Adjustments

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [Convergence Circuit] Purpose: To converge red, green and blue at the edges of the screen 18. Fine Convergence Symptom: Color edging at the edges of the picture. Measuring ----- Instrument SD Fine Adjustment ----- 1.

  • Page 42: Chip Parts Replacement

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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 43: Replacement Parts

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 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 44: Quick Reference List

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 QUICK REFERENCE FOR COMMON REPLACEMENT PARTS CRT ASSEM BLIES MODEL ASSY-CRT-RED ASSY-CRT-GREEN ASSY-CRT-BLUE VS-A50 251C215070 251C215080 251C215090 W S-A48 251C218070 251C218080 251C218090 W S-A55 251C218010 251C218020 251C218030 W S-A65 251C218040 251C218050 251C218060...

  • Page 45: Service Parts List

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description TUBES IC7G01 275P247010 IC-C-MOS - MB40C958VPFV...
  • Page 46 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description Q5A31 261P122010 TR - 2SC5778...
  • Page 47 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description COILS L7D13 325C241030 COIL-CHIP - 10MH-K...
  • Page 48 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description L8D04 409P777080 EMI-F-CHIP - BLM21P221S...
  • Page 49 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description Conventional Resistors (By Ref #)
  • Page 50 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R5A95 103P714030 R-CARBON - 1/4W 33K-J...
  • Page 51 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R7K01 103P712050 R-CARBON - 1/4W 1K-J...
  • Page 52 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description Conventional Capacitors (By Ref #)
  • Page 53 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C5A31 172P571050 C-M-PLA-PP - 1500VHP 3900P-J-OR-H...
  • Page 54 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C9A15 172P262050 C-M-POLY - 50V 0.1M-J...
  • Page 55 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description PJ2J01 440C410010 PIN-JACK-BOARD-5P PJ2J02 440C410010...

  • Page 56: Screen Parts List

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description SCREEN ASSEMBLY PARTS WS-A65 (Figure 1)
  • Page 57 MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 [#] Model Legend: (1) VS-A50, (2) WS-A48, (3) WS-A55, (4) WS-A65 Ref # Part # Part Name & Description Ref # Part # Part Name & Description WS-A48 (Figure 2) 491P138010 SCREEN-LENTICULAR - 48"...

  • Page 58: Power Supply

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 POWER SUPPLY Page 58...

  • Page 59: Video / Color Signal Path

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 VIDEO/COLOR PATH Page 59...

  • Page 60: Sync Signal Path

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 SYNC PATH Page 60...

  • Page 61: Deflection / Hv

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 DEFLECTION / HV CIRCUIT Page 61...

  • Page 62: X-Ray Protect

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 X-RAY PROTECT Page 62...

  • Page 63: Hv Regulation

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 REGULATION Page 63...

  • Page 64: Sound Signal Path

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 SOUND PATH Page 64...

  • Page 65: Convergence

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 Page 65...

  • Page 66: Control Circuitry

    MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65 CONTROL CIRCUIT Page 66...

This manual is also suitable for:

Vs-a50Ws-a55Ws-a65

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