Mitsubishi WS-55517 Service Manual
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Mitsubishi WS-55517 Service Manual

Mitsubishi ws-55517; ws-65517; ws-73517 projection television
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MITSUBISHI ELECTRIC
WS-55517
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 Usage
: 275W
• Frequency Range
: VHF 54 ~ 470MHz
• Antenna Input
: VHF/UHF 75Ω unbalanced
• CRT Size
: [7 inches] WS-55517/WS-65517
: [9 inches] WS-73517
• High Voltage
: 32.0kV (at 0A)
• Speakers (8 Ohms 10W)
: 2 - 6" full range
Cabinet Weight & Demensions
Model
Weight
WS-55517
221 lbs
WS-65517
292 lbs
WS-73517
383 lbs
• Weight and dimensions shown are approximate.
• Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.

SPECIFICATIONS

300W [WS-65517/ WS-73517]
UHF 470 ~ 806MHz
1 - NTSC.ATSC/QAM
1 -NTSC for PIP
Height
Width
Depth
50.7 in.
50.4in.
28 in.
62 in.
59 in.
28 in.
66.3 in.
65.9 in.
30 in.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2005 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
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Manual
Manual
Manual
Manual
Manual
PROJECTION TELEVISION
V27 CHASSIS
V27 MODELS
WS-55517
WS-65517
WS-73517
• 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
: IEEE-1394 I/O Jacks
Interface
: AC-3 Digtal Audio Output
: HDMI
: CableCARD
: System 5 IR
: USB Service Port
2005
2005
2005
2005
2005

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Summary of Contents for Mitsubishi WS-55517

  • Page 1: Schematic Diagrams Pwb Interconnect Diagram

    : USB Service Port • 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 Copyright © 2005 Mitsubishi Digital Electronics America, Inc. All Rights Reserved...

  • Page 3: Table Of Contents

    MODELS: WS-55517 / WS-65517 / WS-73517 CONTENTS INTRODUCTION ..........................5 PRODUCT SAFETY NOTICE ......................5 SAFETY PRECAUTIONS ........................6 DISASSEMBLY PROCEDURES ......................7 Cabinet Disassembly (Front) ....................7 Cabinet Disassembly (Rear) ....................8 SERVICING THE LENTICULAR LENS AND FRESNEL SCREEN ............9 Removal of the Lenticular Screen and Fresnel Lens ................

  • Page 4: Pwb-Terminal 2 (Pic Μpc / Fif /E2P)

    MODELS: WS-55517 / WS-65517 / WS-73517 CHIP PARTS REPLACEMENT ......................39 REPLACEMENT PARTS ........................40 Parts Ordering ..........................40 Critical and Warranty Parts Designation..................40 Parts Tolerance Codes ........................40 Quick Reference List ........................41 SERVICE PARTS LIST ........................42 SCREEN ASSEMBLY PARTS LIST ....................

  • Page 5: Introduction

    MODELS: WS-55517 / WS-65517 / WS-73517 INTRODUCTION This service manual provides service instructions for projection TV models WS-55517, WS-65517 and WS-73517 using the V27 chassis. Service personnel should read this manual thoroughly before servicing these chassis. This service manual includes: 1.

  • Page 6: Safety Precautions

    MODELS: WS-55517 / WS-65517 / WS-73517 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: Disassembly Procedures

    MODELS: WS-55517 / WS-65517 / WS-73517 CABINET DISASSEMBLY (FRONT VIEW) *Refer to the 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). 3. Remove 4 screws (b) holding the Screen Assembly (all models).

  • Page 8: Cabinet Disassembly (Rear)

    MODELS: WS-55517 / WS-65517 / WS-73517 CABINET DISASSEMBLY (REAR VIEW) *Refer to the Parts List for Part Numbers Rear Cabinet Disassembly 1. Remove the Back Board by removing screws (a), and screws (b). 2. Remove screws (c) to remove the Board Slide.

  • Page 9: Servicing The Lenticular Screen And Fresnel Lens

    MODELS: WS-55517 / WS-65517 / WS-73517 SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS WS-55517 / WS-65517 / WS-73517 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 10: Installation Of The Lenticular Screen And Fresnel Lens

    MODELS: WS-55517 / WS-65517 / WS-73517 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 11: Diamondshield Tm Removal And Installation

    MODELS: WS-55517 / WS-65517 / WS-73517 SERVICING THE DIAMONDSHIELD™ 1. DiamondShield™ Removal Procedure The appropriate disassembly procedure given below. Note: Wear gloves when handling the DiamondShield™ to prevent finger prints. 1. Gently insert a small plastic card (such as a credit card or a...

  • Page 12: Cabinet Separation Procedures

    MODELS: WS-55517 / WS-65517 / WS-73517 CABINET SEPARATION PROCEDURE WS-65517 / WS-73517 Cabinet Separation Procedure 1. Pull the Speaker Grill from the cabinet. 2. Unplug the CC, ZF and GR connectors. 3. Remove 4 plastic covers and screws (a) from each side of the cabinet.

  • Page 13: Pcb Locations

    MODELS: WS-55517 / WS-65517 / WS-73517 PCB Locations Main Components Location (Top View) (DM Fan & Bracket Removed) Page 13...

  • Page 14: Crt Replacement

    MODELS: WS-55517 / WS-65517 / WS-73517 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 15: Crt Installation

    MODELS: WS-55517 / WS-65517 / WS-73517 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 16 MODELS: WS-55517 / WS-65517 / WS-73517 2. Install the Deflection Yoke on the CRT neck. [Figure 5-7] 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 5-8.

  • Page 17: Electrical Adjustments

    MODELS: WS-55517 / WS-65517 / WS-73517 ELECTRICAL ADJUSTMENTS Note: Perform only the adjustments required. Do not attempt an alignment if proper equipment is not available. Test Equipment • Oscilloscope (Unless otherwise specified, use 10:1 probes) • Signal Generator (both SD and HD capable) •...

  • Page 18: Initial Setup

    MODELS: WS-55517 / WS-65517 / WS-73517 Initial Setup (MENU-2-4-7-0) A. Option Menu Setup Follow the steps below for the initial set-up: OPTION MENU 1. Select the "MENU" display by pressing the "MENU" button once. Initial 2. Press the number buttons "2", "4", "7", "0" in sequence to select the "OPTION MENU"...

  • Page 19: Led Indicator Diagnostics

    MODELS: WS-55517 / WS-65517 / WS-73517 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. A/V Reset 1. The front panel AV Reset button initializes all A/V Memories.

  • Page 20: Circuit Adjustment Mode

    MODELS: WS-55517 / WS-65517 / WS-73517 Circuit Adjustment Mode Most of the adjustments can only be performed using the remote hand unit. Many of the adjustments must be performed in both the 480i and 1080i modes. Video/Color adjustments must be performed in the 480i and 1080i modes, and data must be preset in the 480P (DVD) and VGA modes.

  • Page 21: Service Mode Reset

    MODELS: WS-55517 / WS-65517 / WS-73517 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.
  • Page 22 MODELS: WS-55517 / WS-65517 / WS-73517 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.

  • Page 23: Adjustment Items List

    MODELS: WS-55517 / WS-65517 / WS-73517 E2PROM Replacement Data accessed in the Convergence Adjustment Mode is stored in IC8D01on the PCB-SIGNAL. Replacement PCB’s are supplied pre-aligned so that only fine adjustments should be necessary after replacement. All other service data is stored on the PCB-E2P located on the DM assembly. When replacing the DM assembly, retaining the original PCB-E2P will eliminate the need for any realignment.
  • Page 24 MODELS: WS-55517 / WS-65517 / WS-73517 MAIN MATRIX (MENU-2-4-5-7) Item Abbrev. Initial Description Range Number Name Data COLM Color Gain Control 0~63 YDRM Y Drive Gain Control 0~63 SUB MATRIX (MENU-2-4-5-7) Item Abbrev. Initial Description Range Number Name Data COLS...
  • Page 25 MODELS: WS-55517 / WS-65517 / WS-73517 CONV GREEN Items (MENU-2-4-5-9-5) No. Abbrev. Description WS-55517 WS-65517 WS-73517 Name HSTA* Horizontal Position VSTA* Vertical Position SKEW Skew (Y axis rotation) TILT Tilt (X axis rotation) HWID Horisontal Width HLIN Horizontal Linearity SPCC...

  • Page 26: Adjustment Procedures

    MODELS: WS-55517 / WS-65517 / WS-73517 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 25 - Main Picture (Y)

  • Page 27: Main / Sub Y Level & Hv Regulation

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: To set the CRT Anode voltage. [HV Circuit] Symptom: Dark Picture 1. HV Regulation Measuring DC Voltmeter Instrument Note: This adjustment must be rechecked following Adjustment 9 CRT Cutoff. Test Point DT connector pins 3 & 6 1.

  • Page 28: Main / Sub Color Level & Crt Cutoff

    MODELS: WS-55517 / WS-65517 / WS-73517 To match the sub picture color to that of the main picture. [Video Circuit] Purpose: 3. Main/Sub Color Level Main and sub pictures colors differ. Symptom: Measuring Oscilloscope 1. Supply an NTSC signal to an External Video Input.

  • Page 29: White Balance (Ntsc) & White Balance (Hd)

    MODELS: WS-55517 / WS-65517 / WS-73517 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 30: Black Level & Sub Contrast

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [Video Circuit] To set the black level of the picture. Excess or insufficient brightness. Symptom: 7. Black Level Measuring ----- Instrument 1. Supply a Monoscope signal to a Video Input. 2. Activate the Adjust Mode, VC Function.

  • Page 31: Dynamic Focus Presets & Lens Focus

    MODELS: WS-55517 / WS-65517 / WS-73517 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. Activate the Convergence Mode.

  • Page 32: Alignment Magnet / Electrostatic Focus & Character Position

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [CRT Circuit] To set electrostatic focus to the optimum point. Symptom: Poor focus. 11. Electrostatic Focus & (Alignment Magnet) Measuring ----- Instrument Note: This adjustment must be performed after the Sub Contrast adjustment.

  • Page 33: Geometry Presets

    MODELS: WS-55517 / WS-65517 / WS-73517 [Conv/Defl] To preset data controlling raster geometry Purpose: 13. Geometry Preset Raster distortion. Symptom: ----- Measuring Procedure Instrument In the Circuit Adjustment and Coarse Convergence Modes preset the data to the ------ Test Point values given in the Tables below.

  • Page 34: Deflection Geometry Adjustments

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [Deflection Circuit] To set the height, width and linearity of the raster. Symptom: 14: Deflection Geometry Incorrect height, width and/or linearity. Height & Width Adjustment Measuring ----- Instrument Note: Test Point Always use the Standard Format when aligning Geometry and Convergence.

  • Page 35: Convergence Geometry Adjustments

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [Convergence Circuit] To set the Convergence circuit geometry adjustments. Symptom: 15. Convergence Geometry Raster distortion at the top, bottom or sides of the picture. Adjustment Measuring ----- Note: Deflection Circuit Geometry must be performed before this adjustment.

  • Page 36: Centering & Static Convergence

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [Convergence Circuit] To converge red, green and blue at the center of the screen Symptom: 16. Centering and Static Color edging over the entire picture. Convergence Measuring ----- Instrument Preliminary Test Point Degauss the shield cover and bracket unit of the CRT assembly and chassis.

  • Page 37: Coarse Convergence Adjustments

    MODELS: WS-55517 / WS-65517 / WS-73517 [Convergence Circuit] To converge red and blue on green at the edges of the Purpose: screen. 17. Coarse Convergence Color edging at the top, bottom and sides of the screen. Symptom: Measuring Note: ----- Instrument Always use the Standard Format when aligning Geometry and Convergence.

  • Page 38: Fine Convergence Adjustments

    MODELS: WS-55517 / WS-65517 / WS-73517 Purpose: [Convergence Circuit] To converge red, green and blue at the edges of the screen Symptom: 18. Fine Convergence Color edging at the edges of the picture. Measuring ----- Instrument Note: ----- Test Point Always use the Standard Format when aligning Geometry and Convergence.

  • Page 39: Chip Parts Replacement

    MODELS: WS-55517 / WS-65517 / WS-73517 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 40: Replacement Parts

    MODELS: WS-55517 / WS-65517 / WS-73517 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 41: Quick Reference List

    MODELS: WS-55517 / WS-65517 / WS-73517 QUICK REFERENCE FOR COMMON REPLACEMENT PARTS CRT ASSEMBLIES MODEL ASSY-CRT [R] ASSY-CRT [G] ASSY-CRT [B] WS-55517 251C330040 251C330050 251C330060 WS-65517 251C331010 251C331020 251C331030 WS-73517 251C331040 251C331050 251C331060 REMOTE CONTROL 290P122010 REMOTE CONTROL HIGH VOLTAGE / DEFLECTION COMPONENTS...

  • Page 42: Service Parts List

    MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description TUBES IC7N00 270P997010 IC-C-MOS - SM5301AS IC7P01 275P943030 IC-C-MOS - PIC18F252T-I/SO030...
  • Page 43 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description IC8C02 267P173010 HIC - STK394-250 Q5K05 261P150010 TR - 2SA1207...
  • Page 44 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description D6G07 262P063010 DIODE - 1SS244 L2011 409P777080 EMI-F-CHIP - BLM21P221S...
  • Page 45 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description L3054 409P923060 EMI-F-CHIP - BLM21B272S L81A7 409P865080 EMI-F-CHIP - BLM18PG6...
  • Page 46 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description L8736 409P923060 EMI-F-CHIP - BLM21B272S LC8313 409P945010 EMI-F-CHIP - NFL21SP506X13CD...
  • Page 47 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description TRANSFORMERS 103P491070 1/16W 470-F 103P496040 1/16W 43K-F 103P502010 1/16W 470-J...
  • Page 48 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R5B04 103P711030 R-CARBON - 1/4W 100-J R6B03 103P464020 R-METAL - 1/4W 2.4K-F...
  • Page 49 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description R6R21 103P467030 R-METAL - 1/4W 100K-F R9A21 103P144020 R-CARBON - 1/2W 27K-J...
  • Page 50 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description Conventional Capacitors (By Ref #) C2M59 181P352030 C-ELEC - 16V 47M-M...
  • Page 51 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C3E07 181P353090 C-ELEC - 5V 2200M-M C5K03 142P024060 C-CER - BF50V 0.1M-Z...
  • Page 52 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C7K20 155P314040 C-CER - SL50V 220P-J C8E05 181P352030 C-ELEC - 16V 47M-M...
  • Page 53 MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description C9C06 181P352040 C-ELEC - 16V 100M-M 642C352010 CLIP-MIRROR - TOP...

  • Page 54: Pwb-Main (Power Supply / Horizontal Deflection / Hv)

    MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description X8001 285P441040 QTZ-CRYST - 26.1621MHZ X8301 285P434020 QTZ-CRYST - 16.000MHZ...

  • Page 55: Screen Assembly Parts List

    MODELS: WS-55517 / WS-65517 / WS-73517 [#] Model Legend: (a) WS-55517, (b) WS-65517, (c) WS-73517 Ref # Part # Part Name & Description Ref # Part # Part Name & Description SCREEN ASSEMBLY PARTS 635B113020 FRAME-TOP - SUPPORT WS-55517 Screen Parts 760D627070 DIAMOND SHIELD - 65"...

  • Page 56: Circuitry Block Diagrams

    MODEL: WS-55517 / WS-65517 / WS-73517 POWER SUPPLY Page 56...
  • Page 57 MODEL: WS-55517 / WS-65517 / WS-73517 VIDEO SIGNAL PATH Page 57...
  • Page 58 MODEL: WS-55517 / WS-65517 / WS-73517 Page 58...
  • Page 59 MODEL: WS-55517 / WS-65517 / WS-73517 Page 59...
  • Page 60 MODEL: WS-55517 / WS-65517 / WS-73517 DEFLECTION / HV Page 60...
  • Page 61 MODEL: WS-55517 / WS-65517 / WS-73517 X-RAY PROTECT Page 61...
  • Page 62 MODEL: WS-55517 / WS-65517 / WS-73517 Page 62...
  • Page 63 MODEL: WS-55517 / WS-65517 / WS-73517 SOUND CIRCUIT Page 63...
  • Page 64 MODEL: WS-55517 / WS-65517 / WS-73517 CONTROL CIRCUITRY Page 64...

  • Page 65: Schematic Diagrams

    PCB-SIGNAL-3 [VCJ / VERTICAL DEF / AUDIO] ..9 • Block Diagrams PCB-TUNER-1 [TUNER / AUDIO] ........ 10 PCB-TUNER-2 [ATSC DEMOD] ........11 MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC. 9351 Jeronimo Road, Irvine, CA 92618-1904 Copyright © 2005 Mitsubishi Digital Electronics America, Inc. All Rights Reserved...

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