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ECHNICAL
RAINING
T
2003
Projection Television
Technical Training &
Troubleshooting Manual
V23 V23+ V23++ V23+++
WS-48513
WS-48613 WS-65713 WS-55813
WS-55513 WS-55613 WS-73713 WS-65813
WS-65513 WS-65613
WS-73513
MITSUBISHI ELECTRIC
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
V23
V23
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ECHNICAL RAINING T 2003 V23 Chassis Projection Television Technical Training & Troubleshooting Manual Copyright © 2003, Mitsubishi Digital Electronics America, Inc. All Rights Reserved
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V23 CHASSIS TECHNICAL TRAINING AND TROUBLESHOOTING MANUAL TABLE of CONTENTS Introduction ... New Technologies Models ............................................................................................................... 1 Features ............................................................................................................... 2 NetCommand™ 3.0 ............................................................................................. 3 Five Format Memory Card Reader ..
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Chapter 5 ... Video/Color Circuitry Overall Block Diagram.......................................................................................5-1 PCB-Terminal ....................................................................................................5-2 PCB-Signal........................................................................................................5-3 RGB CRT Drive & Protect Circuitry ...................................................................5-4 Digital Sign
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Introduction Series Gold Gold Plus Platinum Diamond Chassis V23 V23+ V23++ V23+++ 48" W WS-48513 WS-48613 Screen 55" W WS-55513 WS-55613 WS-55813 Size 65" W WS-65513 WS-65613 WS-65713 WS-65813 73" W WS-73513 WS-73713 Table 1: V23 Models The V23 Chassis is carried in the Gold, Gold Plus, Improved Features Platinum and Diamond series models for 2003 and • 3rd Generation HDTV Receiver 2004. This full featured, integrated HDTV chassis • NetCommand 3.0 with IR Learning represents the latest technol
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V23 Features Feature Explaination 3rd Generation HDTV Receiver ATSC and Unscrambled QAM Reception Greater Sensitivity NetCommand™ 3.0 Home Theater Control by Firewire or IR Five-Format Memory Card Reader For viewing JPEG digital photos and listening to MP3 or WMA audio recordings. AMVP (Advanced Multimedia Video 8 Screen Formats, Improved Line Doubling and Processor) Noise Reduction FireWire/IEEE1394 Digital Home Networking Interface. DTV-LINK Standard for future FireWire interfaces. PerfectC
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NetCommand 3.0 NetCommand allows most common home theater products to be connected and controlled by way of the TV's re- mote control by simply selecting on- screen icons. See Figure 1. Figure 1: NetCommand Icons The control interface can be by one of two means. • IEEE1394/Firewire • Infrared (IR Blaster) The 3rd generation of NetCommand offers additional functionality and a simplier user interface. When using the Firewire, NetCommand is "plug- and-play." For the end user, it makes all digita
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5 Format Memory Card Reader Digital music and photography can now be enjoyed in the home theater environment thanks to the memory card reader featured in the V23 chassis. When the user inserts a memory card into any one of the four card reader slots on the front of the set, NetCommand will take control, allowing a slide show or giving a music play list. The memory card formats supported are: Figure 5: JPEG Thumbnails • Memory Stick™ • MultiMedia Card™ • SD (Secure Digital) • SmartMedia™ • Compa
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Compatibility PerfectColor™ Users having difficulties with the memory card reader With conventional tint controls providing only a should be aware of the following requirements: tradeoff between red and green, PerfectColor was For JPEG Pictures up to 128mb: developed to provide precise control over the 6 in- 1. Still images recorded using the Exchangable dividual primary and secondary colors. Image File Format (EXIF) for digital still cam- eras and Design Rules for Camera File Sys- Introduced in
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MonitorLink™ MonitorLink is a new digital interface introduced in Mitsubishi's 2003-2004 model line, including the V23 chassis. MonitorLink provides a proprietary connection for Mitsubishi's HD-5000, Monitor/Receiver, allowing Mitsubishi's upgradeability promise to be fulfilled using a digital, rather than analog, interface. While MonitorLink is a proprietary connection, it uses industry standard technologies that may pro- vide even more versatility. • RS-232C - Provides device communication and
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Acronyms DDC Display Data Channel DDWG Digital Display Working Group DMPM Digital Monitor Power Management DVI-A Digital Visual Interface - Analog DVI-D Digital Visual Interface - Digital DVI-I Digital Visual Interface - Integrated (Digital or Analog) EDID Extended Display Identification Data HDCP High-bandwidth Digital Content Protection TMDS Transistion Minimized Differential Signaling VESA Video Electronics Standards Association Table 5 Used with its optional copy protection scheme, DVI Trans
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Figure 10: Single-Link TMDS Display Data Channel (DDC) Extended Display Identification Data (EDID) The VESA standard Display Data Channel, shown EDID is the VESA standard protocol used over the in Figure 10, is part of the DVI specification. It is DDC so the display device can communicate identi- 2 an I C bus used for data communications between fication about itself to the host device. The data, the two devices. The data can include information stored in memory in the display device, can in
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High-bandwidth Digital Content Protection the host know it is plugged in. When the host de- (HDCP) vice detects a High condition greater than 2.4 VDC HDCP is a system designed to protect the outputs of (typically 5.0 VDC), it will read the EDID and start a DVI device from being copied. The protection can operation. If the potential falls below 2.0 VDC the be applied in various ways. TMDS transmitter is stopped. • Unrestricted copies • Limited number of copies Digital Monitor Power Management
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PIN SIGNAL PIN SIGNAL 1 TMDS Data 2- 16 Hot Plug Detect 2 TMDS Data 2+ 17 TMDS Data 0- 3 TMDS 2&4 Shield 18 TMDS Data 0+ 4 TMDS Data 4- (NA) 19 TMDS 0&5 Shield 5 TMDS Data 4+ (NA) 20 TMDS Data 5- (NA) 6 DDC Clock 21 TMDS Data 5+ (NA) 7 DDC Data 22 TMDS Clock Shield 8 Analog Vertical Sync (NA) 23 TMDS Clock+ 9 TMDS Data 1- 24 TMDS Clock- 10 TMDS Data 1+ C1 Analog Red (NA) 11 TMDS 1&3 Shield C2 Analog Green (NA) 12 TMDS Data 3- (NA) C3 Analog Blue (NA) 13 TMDS Data 3+ (NA) C4 Analog Horizontal Syn
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Figure 13: V23 Chassis DVI Input Block Diagram 11
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Chassis Option Menu Adjustment Mode Convergence Mode OSD Position VZ5/VZ6/V15 1-3-7-0 2-3-5-7 2-3-5-9 <6><5><4> Adjust Mode VZ7/VZ8/V16 1-2-7-0 1-2-5-7 1-2-5-9 <6><5><4> Adjust Mode V17 8-2-7-0 8-2-5-7 8-2-5-9 <6><5><4> Adjust Mode VZ9/V18/V19 0-1-7-0 0-1-5-7 0-1-5-9 <6><5><4> Adj. Mode/0-1-8-8 V20/VK20 2-2-7-0 2-2-5-7 2-2-5-9 <6><5><4> Adjust Mode V21 2-1-7-0 2-1-5-7 2-1-5-9 <6><5><4> 2-1-8-8 K20/V22/V23 0-3-7-0 0-3-5-7 0-3-5-9 <6><5><4> Adj. Mode/0-3-8-8 Service Menu Access Codes 12
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Chapter 1 Disassembly and Service Figure 1-1: Lightbox Removal - 48” Models With 11 different models, mechanical features and Lightbox disassembly procedures vary in the V23. Since all Like previous Mitsubishi projection TV chassis, the features and disassembly procedures are in the Ser- V23 is based on a modular design that allows the vice Manual, this chapter will only provide a gen- “lightbox” to be removed for service. Even without eral discussion. the front control panel, card reader or
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The lightbox removal procedure for 48” V23 mod- 1) Apply AC power. els is shown in Figure 1-1. 2) Press the remote Power button once. 1. Remove the Back Board by removing 7 3) Wait 90 seconds. screws (a), 2 screws (b) and 8 screws (c). 4) If no response, press the Power button again. 2. Remove the Back Cover by removing 8 5) Wait 90 seconds. screws (d). 3 Remove 4 screws (e) to remove the Board Main Chassis Removal Slide. Refer to Figure 1-2 to remove the Main Chassis. 4. Remove 8 screws (f) to
