Optoma EP680 Service Manual
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Optoma EP680 Service Manual

Optoma EP680 Service Manual

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Chapter 1
1. Introduction
This manual is applied to three panels, metal halide lamp and the mode
color TFT LCD Projector. The manual gives you a brief description of basic technical
information to help in service and maintaining the product.
CTX-Opto is a specialist in the LCD Projection field. Your customer will appreciate the
quick response time when you immediately identify problems that you occur with our
products. We expect your customer will appreciate the service that you have given them.
This manual is for technicians and people who have an electronic background. Send the
product backs to the distributor for repair and do not attempt to do anything that is
complex or is not mentioned in the troubleshooting.
Service Manual
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  • Page 1 Chapter 1 1. Introduction This manual is applied to three panels, metal halide lamp and the mode pixels 1024 * 768 color TFT LCD Projector. The manual gives you a brief description of basic technical information to help in service and maintaining the product. CTX-Opto is a specialist in the LCD Projection field.
  • Page 2 Projector standard features 12.5 lbs (5.7kg) lightweight design 450 ANSI lumens high brightness 250-watt user replaceable metal-halide lamp Triple 1.3” Poly-silicon TFT LCDs projection system 1024 * 768 addressable pixels Compression for 1280 * 1024 SXGA computer image 16.7M displayable colors SXGA/XGA/SVGA/VGA/VESA/Mac/NEC PC-98/Fujitsu FM Towns compatible NTSC/PAL/SECAM composite video &...

  • Page 3: Technical Specification

    1.2 The appropriate operation for using projector Do not place anything which would block either the panel or overhead the projector’s cooling slots. The housing may be cleaned with a soft cloth moistened with a diluted solution of mild cleaning solution. The product’s LCD panel and lens are extremely sensitive;...
  • Page 4 Lamp 250-watt metal-halide Uniformity Display resolution 1024 pixels(H) * 768 lines(V) Displayable color 16.7 M colors Projection lens F2.5~3.2, f47~75mm with 1.6x motor zoom/focus Projection image size Adjustable 20” to 640” Projection distance 3.6 ft. to 75.6 ft. / 1.1m to 23m Computer compatibility IBM &...
  • Page 5 Video compatibility NTSC/PAL/SECAM compatible Composite video & S-video capability Multimedia audio two internal speakers w/3 watts output built-in amplifier w/3 watts * 2 output Remote control Joystick type pointing device infrared technology with backlight Microsoft and Macintosh mouse compatible User control Multilingual OSD menu adjustments auto-save and reset capability multifunction presentation &...
  • Page 6 Power consumption 340 watts at normal operation 2 watts at standby mode Noise 42 dB I/O connectors power: AC power input socket computer input: HDB 15-pin female connector computer output: HDB 15-pin female connector video input: composite video RCA jack*1 S-video jack*1 audio input: 2 pairs of L/R RCA jacks...

  • Page 7: Mechanical Construction

    Chapter 2 2. Mechanical construction This section provides exploded view and replaceable parts for LCD projector. The replaceable parts listed in order to you can quickly place an order for correct parts and also replace them in short time. Service Manual...

  • Page 8: Package Overview

    2.1 Package overview 42.50115.001 42.80708.001 42.80716.001 15P Mac Power Cord RCA Audio/Video Monitor Adapter 1830mm Cable 2M 42.80707.001 42.53001.051 42.80715.001 15P Mac 15P 1800mm Audio-In Cable Switch Adapter VGA Cable 1800mm 46.80301.001 35.50207.001 42.50209.011 Label PC-98 Adapter Battery #4 1.5V S-Video Cable 36.80703.003 51.80112.001...
  • Page 9 36.00006.001 52.80703.001 57.00001.001 36.80802.001 36.00007.001 Warranty Card User’s Manual Pack SI02 Direr Air Filter Mesh 55.80101.001 Carton 75.80708.001 56.80703.001 35.52302.091 Label of Carton Carry Case Cushion Left/Right Remote Mouse Package: 70.80710.001 42.80303.003 42.50208.002 Remote 15P PC-98 Remote Control Receiver Cable Cable Adapter 42.80304.001 42.80305.001...

  • Page 10: Replacement Parts List

    2.1.1 Replacement parts list Item Description 42.80716.001 Mac Monitor Adapter 42.50112.001 Cable, Power Cord 1830mm (Europe Type) 42.50115.001 Cable, Power Cord 1830mm (US Type) 42.50116.001 Cable, Power Cord 1500mm (Japan Type) 42.50117.001 Cable, Power Cord 1800mm (Australia Type) 42.80708.001 Cable, RCA Audio/Video Cable 2M 42.80707.001 Mac Switch Adapter 15P 42.53001.051 Cable, VGA Cable 15P 1800mm 42.80715.001 Cable, Audio-In Cable 1800mm...
  • Page 11 Item Description Remote Mouse Package includes following accessories 70.80710.001 Remote Control Unit 42.80303.003 Remote Receiver Cable 1800mm 23-1 42.80305.001 Mac/PC PS2 Mouse Adapter male 23-2 42.80307.001 Mac/PC PS2 Remote Adapter male 24-1 42.80304.001 Mac/PC PS2 Mouse Adapter female 24-2 42.80306.001 Mac/PC PS2 Remote Adapter female 42.50208.002 PC-98 Cable Adapter 15P 42.52112.001 PC-98 Adapter 15P 95.80702.001 Ceiling Mount Module...

  • Page 12: Exploded Overview

    2.2 Exploded overview (Please refer to “Appendix” on page 9-4 for oversize exploded view) Service Manual...
  • Page 13 2.2.1 Replacement parts list i t u i t a - - - l a i h t i - - - - - - i t p e l f i t c r r i , r o - - - - - - - - -...
  • Page 14 - - - e l i - - - - - - t t u r e t t f e - - - - - - t a l t 5 . - - - - - - Service Manual...
  • Page 15 t t u - - - " 3 " 3 " 3 c i t - - - - - - s t r m ) H i t a i t a - - - r t c r e t - - - .

  • Page 16: Fundamental Principles

    Chapter 3 3. Fundamental principles This section provides the whole structure of LCD projector. You can realize optical projection system through the following block diagram and also the integral part of configuration. Besides, the relationship of the main board, audio & video board and driver board on the integral schematics, circuit process and VGA signal can be realized clearly and quickly.
  • Page 17 3.1 Whole structure Service Manual...

  • Page 18: Block Diagram

    Optical projection system 3.2.1 Description of basic operation principle The lamp, 250 watts metal halide, emits brilliant light to get 450 Lm. The light emitted from the lamp is reflected by a parabolic reflection mirror and resulting parallel light evenly illuminate the face of the liquid crystal panel. The light flux that has passed through the integrator lens is color-separated by DM-C and DM-G, penetrates a condenser lens and polarizer and irradiates the liquid crystal panels R and G.
  • Page 19 3.2.3 Description 1. Front Surface It is the same as the mirror function for folding the illumination lights Mirror 2. Integrator Lens To make the display become more uniform and also increase its brightness. 3. Relay Lens To relay the blue light to the LCD panel so that the illumination condition of it could be the same as the other colors.

  • Page 20: Main Board

    Main board Service Manual...
  • Page 21 3.3.1 Description q A/D Converter The TMC1203 converters analog signals to digital signal for panel use. q D/A Converter M62393 is a 8-channel 8 bit voltage output digital to analog converter, and it includes data latch circuit and gain change circuit of output amplifiers.

  • Page 22: System Controller

    q System Controller Generate control timing of FIF0. Generate control timing of LCD, the read timing base on PLL. Generate control timing of line buffer. Generate control timing of resizing circuit. Generate control timing of OSD. Service Manual...
  • Page 23 3.4 Audio/Video board A u d io 3.4.1 Description q Decoder The video input process (VIP) is a combination of a two-channel analog preprocessing circuit including source selection, anti-aliasing filter and ADC, an automatic clamp and gain control, a Clock Generation Circuit(CGC), a digital multi-standard decoder (PAL BGHI,PAL M, PAL N, NTSC N and SECAM), a brightness/ contrast/saturation control circuit, a color space matrix and a 27 MHz...

  • Page 24: Audio Process

    q Audio Process The TDA8425 is a monolithic bipolar integrated stereo sound circuit with a lowspeaker channel facility, digitally controlled via the I C-bus for application in Hi-Fi audio and television sound. q Amplifier The TDA1517 is an integrated class-B dual output amplifier in a 9-lead single-in-line (SIL) plastic medium power package.

  • Page 25: Driver Board

    3.5 Driver board 3-10 Service Manual...

  • Page 26: Motor Driver

    3.5.1 Description q D/A The MB40988 is an 8 bit resolution ultra high-speed digital-to-analog converter, designed for video processing applications. q R/G/B Pre-Driver The CXA2111R is a signal processor IC developed for LCD panel, Gamma correction, gain and bias, etc., can be adjusted using T C bus and external adjustment pins.

  • Page 27: Procedure Of Disassembly

    Chapter 4 4. Procedure of disassembly This section provides disassembly procedures for the LCD projector. Before you begin any of these procedures, be sure to turn off the power to the projector, computer system, and other attached devices; then disconnect the power cable from the electronically outlet. CAUTION: 1.
  • Page 28 4.1 The disassembly of the top cover module and metal plate  Œ  1. Take the 2 Poron pad off firstly and then unscrew 2 screws and one on the Back cover. 2. Pull up the Handle holder; loosen two screws as shown left side, pull up the Top cover. 3.
  • Page 29 4.2 The disassembly of Driver board and A/V board Œ   Ž 1. Unplug all cables on the Driver board, Connector JP101, 102, 103, 104, 105, 106, JP501, 601, 701 cables. “ Use clipper to pull black cap out and then detach JP501,601,701 connector cables” 2.
  • Page 30 4.3 The disassembly of Main board and Front cover  Ž Œ 1. Unscrew 2 screws at the bottom and 1 screw at the top of the Front cover, and then remove it. 2. Unplug all cables on the Main board and unscrew 4 hex screws on the right side of Metal bracket and 3 screws on the Main board.
  • Page 31 4.4 The disassembly of Engine module Œ  1. Unscrew 4 screws on the Engine module. 2. Remove the Engine module. Service Manual...
  • Page 32 4.5 The disassembly of Lamp power supply module Œ    Ž 1. Unscrew 2 screws on the Lamp power supply module. 2. Unscrew 1 screw on the Fan bracket. 3. Unscrew 2 screws on the Lamp module. 4. Unplug 5P Switch board cable. 5.
  • Page 33 4.6 The disassembly of Igniter & Lamp power supply board Ž   Œ 1. Unscrew 2 screws on the Bracket, and slightly remove it. 2. Unscrew 2 screws on the Igniter and remove it. 3. Loosen 2 screws and 2 plastic screws on the Lamp power supply board. 4.
  • Page 34 4.7 The disassembly of lamp fan module, switch board and metal plate Œ Ž  1. Disconnect the connector CN3 cable and EMI cable; unscrew 2 screws on the Switch board and remove it. 2. Unscrew 3 screws on the Metal connector bracket and remove it. 3.
  • Page 35 4.8 The disassembly of Lamp module Œ Ž  1. To take the standing-low case toward yourself first. 2. Loosen 2 screws on the Lamp cover and then remove it. 3. Unscrew 2 screws on the Lamp module and pull out by Handle. Service Manual...
  • Page 36 4.9 The disassembly of EMI board, LVPS board and Switch board Ž   Œ 1. Unscrew 2 screws and use the clipper to detach 2 plastic screws on LVPS board. 2. Unscrew 2 screws and 2 plastic screws from EMI board. 3.
  • Page 37 4.10 The disassembly of LCD replacement  Ž Œ 1. Unscrew 4 screws on the LCD upper bracket and then remove it. 2. Unscrew 4 screws on the LCD bracket . 3. Unscrew 3 screws on each LCD panel (R,G,B) and then remove them. 4-11 Service Manual...
  • Page 38 Chapter 5 5. Pin assignment of boards This section provides each connector position on boards and signal of each pin. We hope they will be useful when you are detecting your defect boards. Service Manual...
  • Page 39 5.1 Main board 5.1.1 Position JP14 JP13 JP12 JP11 JP10 JP5 5.1.2 JP1: Audio/Video connector Pin # Name of Signal Pin # Name of Signal Ground Ground IICDATA VDCLK Ground IICCLK Ground VDSEL VDVIN VDHIN VDODD VDHREF Ground Ground Ground Ground Ground Ground...
  • Page 40 5.1.3 JP2: Fan connector Pin # Name of Signal Pin # Name of Signal +5VS Ground 5.1.4 JP3: Motor connector Pin # Name of Signal Pin # Name of Signal +5VS Ground N.C. 5.1.5 JP4: Fan connector Pin # Name of Signal Pin # Name of Signal +12Vfan...
  • Page 41 5.1.8 JP7: Thermal switch connector Pin # Name of Signal Pin # Name of Signal Thermal Ground 5.1.9 JP8: Power connector Pin # Name of Signal Pin # Name of Signal +9V Fan N.C. Ground +5VS +12V Fan Ground Ground +12V LVPS Ground...
  • Page 42 5.1.12 JP11: VGA-out connector Å Ä Ã Â Á Á É È Ç Æ ÁÁ ÁÅ ÁÄ ÁÃ ÁÂ Pin # Name of Signal Pin # Name of Signal VOUT-R COMPO VOUT-G Ground VOUT-B N.C. N.C. N.C. Ground PCHSO Ground PCVSO Ground N.C.
  • Page 43 5.1.14 JP13: LCD connector Pin # Name of Signal Pin # Name of Signal Ground LCDG4 LCDCLK LCDG5 Ground LCDG6 Ground LCDG7 LCDHSYNC Ground LCDVSYNC LCDB0 Ground LCDB1 LCDR0 LCDB2 LCDR1 LCDB3 LCDR2 LCDB4 LCDR3 LCDB5 LCDR4 LCDB6 LCDR5 LCDB7 LCDR6 Ground LCDR7...
  • Page 44 5.2 Driver board 5.2.1 Position JP101 JP106 JP103 JP105 JP601 JP501 JP701 JP102 JP104 5.2.2 JP101 : Power-In connector Pin # Name of Signal Pin # Name of Signal N.C. Ground +10V Fan +12V N.C. Ground Ground +5V IR +12V Ground 5.2.3 JP102: Control connector...
  • Page 45 5.2.4 JP103: Data-In connector Pin # Name of Signal Pin # Name of Signal Ground CLKCD Ground Ground HSYLCD Ground VSYLCD Ground Ground BRGT Ground BXRGT BDWN Ground Ground Ground 5.2.5 JP104: Motor connector Pin # Name of Signal Pin # Name of Signal M102 M202...
  • Page 46 5.2.7 JP106: Fan connector Pin # Name of Signal Pin # Name of Signal +10V Fan Ground 5.2.8 JP501,JP601,JP701: R/G/B LCD connector Pin # Name of Signal Pin # Name of Signal PSIG Ground HCK2 RSIG1 HCK1 RSIG2 Ground RSIG3 Ground RSIG4 BLK_R...
  • Page 47 5.3 Audio/Video board 5.3.1 Position TX1TX2 5.3.2 JP1: Audio/Video connector Pin # Name of Signal Pin # Name of Signal Ground Ground VDCLK Ground Ground -VDSEL VDVIN VDHIN N.C. N.C. Ground Ground Ground Ground Ground Ground +12V +12V +12V Ground +12V Ground +12V...
  • Page 48 5.3.4 JP3: External speaker connector Pin # Name of Signal Pin # Name of Signal Ground SPK-R N.C. AER-L SPK-L AER-R N.C. 5.3.5 TX2: S-Video connector Pin # Name of Signal Pin # Name of Signal Ground S.Y. Ground S.C. 5.3.6 TX1: Composite video connector Pin #...

  • Page 49: Switch Board

    5.4 Switch board 5.4.1 Position 5.4.2 CN1: LVPS connector Pin # Name of Signal Pin # Name of Signal Ground 110/220V 110/220V 5.4.3 CN2: Lamp power supply connector Pin # Name of Signal Pin # Name of Signal Ground Switch 110/220V 110/220V Switch 110/220V 110/220V...

  • Page 50: Lamp Power Supply Board

    5.5 Lamp power supply board 5.5.1 Position 5.5.2 Description Pin # Name of Signal Pin # Name of Signal Ground To Igniter ACIN Select (115V/230V) To Igniter ACIN Select (115V/230V) Dim Control ACIN Dim Control ACIN Note: The pin2 & pin3 are 115V when switch in turn off status. The pin2 &...
  • Page 51 5.6 LVPS board 5.6.1 Position L V P S b o a r d 5.6.2 CN1: Switch connector Pin # Name of Signal Pin # Name of Signal +9V Fan N.C. Ground +12V Fan Ground Ground +12V -Standby Ground Ground 5.6.3 CN2: Power-In connector Pin #...

  • Page 52: Keypad Board

    5.7 Keypad board 5.7.1 Position 5.7.2 Description Pin # Name of Signal Pin # Name of Signal RDKB0 KBR2 RDKB1 LED0 RDKB2 LED1 RDKB3 LED2 KBR0 KBR1 Ground 5-15 Service Manual...

  • Page 53: Maintenance

    Chapter 6 6. Maintenance The adjustment and replacement of LCD panel and metal halide lamp were provided in this section. “How to adjust the focus on the unit”, and “how to change the lamp” were clearly described in this section. After long periods of use, you must be cleaning your engine unit, this section provides two methods to clean it.

  • Page 54: Lamp Replacement

    6.1 Lamp replacement 6.1.1 Precaution Warning: Do not attempt to change a hot lamp. Unplug the projection from the power outlet before the projection lamp is replaced. For continued safety, replace with a lamp of the Part#: 70.80701.001 Assy lamp module Be careful not to touch the lamp or mirror with fingers directly.

  • Page 55: Focus Adjustment

    6.2 Focus adjustment Please make sure that you have already got “DMU” program on your system. To perform focus adjustment and convergence adjustment, you should have the test pattern to do them. Please refer to the following steps. 1. To install the “DMU” under the DOS mode first. Setup the resolution on the 800*600 mode and 256K color or 16K color.
  • Page 56 4. Press zoom ( ) button on the remote control unit to increase image size and confirm that the screen remains in focus. If it is in sharp focus, adjustment is complete. If not, follow the steps below. 5. Loosen 4 screws “A” (please refer to the figure 1) with the screwdriver. Ñ...
  • Page 57 6.2.2 Red / Blue LCD panel unit focus adjustment Before performing this adjustment, make sure Green LCD panel unit focus adjustment is complete. 1. Switch the projector on and project the adjustment pattern on the screen. 2. Block unnecessary light by inserting paper, etc. In the panel so that only the Red or Blue light is projected.

  • Page 58: Convergence Adjustment

    6.3 Convergence adjustment Before adjustment: 1. Make sure each Red, Green, Blue LCD panel unit has been correctly installed, and that all focus adjustments have been completed before performing convergence adjustments. 2. Use a grid pattern for adjustment. First make a rough adjustment using a video signal and then fine adjust by using a computer signal.
  • Page 59 Image movement L C D pa n e l Figure 7 R e d/B lu e L C D p a n el u nit Service Manual...

  • Page 60: Cleaning Methods

    6.4 Cleaning methods F PRECAUTION: USE A COMMERCIAL (INSERT GAS) AIR SPRAY DESIGNED FOR CAMERA CLEANING USE. NEVER USE ANY CLEANER OTHER THAN THAT SPECIFIED FOR CLEANING THE LCD PANEL ASSY (LCD PANEL AND POLARIZING PLATE), LENS, MIRROR, ETC. ALSO, NEVER SCRAPE WITH ANY HARD MATERIAL AS THIS WILL CAUSE DAMAGE.
  • Page 61 B Disassembly cleaning method FPRECAUTION: NEVER REMOVE THE MIRROR. THE POSITION OF THE IS PRECISELY SET AT THE FACTORY. MIRROR PERFORM ALL CLEANING OF THE MIRROR WITH IT ATTACHED TO THE UNIT. After performing disassembly cleaning, adjustment of the unit will be necessary. Disassembly cleaning should only be performed when there is considerable contamination which cannot be removed by air spray.

  • Page 62: Troubleshooting Procedure

    Chapter 7 7. Troubleshooting procedure This section provides technicians and people who have an electronic background a primary description about maintaining the product. In general, through this section, troubleshooting procedure, some easier problem and repair products can be solved by technician.

  • Page 63: Equipment Needed

    7.1 Equipment needed EzPro Projector PC (Personal Computer) VCR (Video Cassette Recorder) Screw Driver 7.2 Main procedure Start Connect all connection cables Turn on main switch Turn on main switch All fans are working? Troubleshooting LED is working? Troubleshooting Turn on power on standby switch Service Manual...
  • Page 64 Lamp part Is lamp light on? Troubleshooting Blue Main board & background shown driver board on the screen? Troubleshooting E. Performance Screen is OK? Troubleshooting Switch to Change video & A/V is A/V board working fine? Remote Control F. Remote control is OK? Troubleshooting Service Manual...
  • Page 65 Keypad Keypad is OK? Troubleshooting No trouble found Service Manual...

  • Page 66: Fan Troubleshooting

    7.2.1 A. Fan troubleshooting Start Lamp Fan is OK? Change Change Change Fan LED fan is OK? Main board LVPS board Change Change Power fan is OK? Change Fan Driver board LVPS board Service Manual...
  • Page 67 7.2.2 B. LED troubleshooting Start Change Change Change Main board Thermal Keypad board Service Manual...
  • Page 68 7.2.3 C. Lamp part troubleshooting Start Change Lamp can’t ignite? igniter and retry Change switch Lamp is flashing ? board and retry Change lamp Lamp is power supply getting dim ? and retry Change lamp module Service Manual...
  • Page 69 7.2.4 D. Main board and driver board troubleshooting Start Disassembly digital board unit and check cable & connector Change Change Change It still doesn’t work? Main board Driver board LVPS board Service Manual...
  • Page 70 7.2.5 E. Performance troubleshooting Start Change Change Check DAC & LCD panel with Driver board LCD panel DAC 1 value straight line ? Garbage pattern Change Change shown on the Main board Driver board screen Please refer to Focus & "LCD adjustment"...
  • Page 71 7.2.6 F. Remote control troubleshooting Start Replace battery and retry Change new one remote control Change main board Change receiver 7-10 Service Manual...

  • Page 72: Keypad Troubleshooting

    7.2.7 G. Keypad troubleshooting Start C h an g e key p ad Change bo ard & retry. Thermal It still d id n’t w o rk ? 7-11 Service Manual...

  • Page 73: Specification

    Chapter 8 8. Specification This section provides several specifications, including LCD panel, lamp power supply module, Igniter and so on. Through LCD panel specification, you can realize the bright and dark spot standard. The principles and features of engine were also provided.

  • Page 74: Lcd Panel

    8.1 LCD panel 8.1.1 Features q Number of active dots: 786,432 (1.3-inch, 3.3cm in diagonal) q Accepts the computer requirements of XGA, SVGA, VGA, NTSC, and PAL q Supports SXGA with simple display q High optical transmittance: 20% (typical) q Built-in cross talk free circuit and ghost free circuit q High contrast ratio with normally white mode: 350 (typical) q Built-in H and V drivers (built-in input level conversion circuit, 5V driving possible.)

  • Page 75: Quality Standards

    8.1.2 Quality standards (1): Defect standard Item Definition Standard Point Bright When a pixel is partially or completely Refer to the bright spot defects spot transmittable during an entirely black or a and the dark spot single-color raster. standards. Dark When a pixel is a partially or completely spot turned off during an entirely white or a...
  • Page 76 8.1.3 Bright spot standards (1) Entirely black image (Vsig=VVC±4.5V at 25°C and 60°C) Level T 55% Quantity Zone A Zone B Total (2) Gray image (Vsig=VVC±2.5V at 25°C, Vsig=VVC±2.35V at 60°C) Level T 55% Quantity Zone A Zone B Total Service Manual...

  • Page 77: Manufacture Date

    8.1.4 Dark spot standards This standard defines the dark spot appearing in an entirely white. £ ° ° At 25 C and 60 ± An entirely white image Vsig=VVC 0.5V Zone Quantity 8.1.5 Manufacture date S O N Y L C X 0 1 6 A L C 7 L o t N o .
  • Page 78 8.2 lamp power supply module 8.2.1 General specification Line voltage 1) 85VAC to 135VAC or 2) 170VAC to 270VAC, selectable Frequency 40-80 Hz Inrush current Typ. 1.2A at 230 V line voltage Recommended 5 AF additional line fuse Power factor Typ.
  • Page 79 Acustical noise Less than 10dBA EMC Suppression Included, meets FCC and CE Outlines: L*W*H=112mm*80mm*40.5mm inclusive mounting spacer Weight Approx. 0.245kg Housing open frame PCB Terminal connection 2.8mm FASTON receptacles Service Manual...

  • Page 80: Lvps Module

    8.3 Igniter 8.3.1 General specification Ignition mode Hot restrike, symmerical approx. +/- 14kV Ignition time limit Immediate turn-off after ignition, 800ms delay to turn-off after no ignition (lamp failure), controlled by the power supply. Outlines L*W*H=52.5mm*43.5mm*22mm Weight 0.085 kg Terminal connection ring-type for M2.5 screws 8.4 LVPS module 8.4.1 General specification...
  • Page 81 8.5 Engine 8.5.1 Principles PLC-55AB is an optical engine for LCD projector using three pieces of 1.3 Inches LCD panels. For its optical system, an optical combination prism is employed to realize BRIGHT, NO DISTORTION image projection and shorter optical path enabling SMALLER, LIGHTER projector in the size of the machine.
  • Page 82 8.5.3 Optical characteristics The optical performance is determined according to the following projecting Conditions. q Projecting conditions Item Set Value Liquid crystal panel 1.3 inches Lens shift (U/D ratio) Effective panel size 1.3 inches Effective projection size 20-400 inches Projection magnification 15.38X/20in-307.69X/400in 8.5.4 Image size (inch) &...
  • Page 83 8.5.5 Precaution in handling the engine q Cooling 1). This optical engine is provided with a DC fan for air suction (for cooling).Pay due attention to proper ventilation and air stream so that adequate cooling effect can be attained. 2). NEVER turn ON the lamp with the DC fan OFF. The DC fan is provided with a sensor output terminal to check the status of operation.
  • Page 84 2). Light emitted from the lamp or the projection lens will injure eyes. Do not look at it directly. 3). Do not drop the optical engine. 4). Do not apply undue force to the optical engine such as twisting or bending force. 5).

  • Page 85: Compatibility Modes

    Chapter 9 9. Appendix 9.1 Compatibility modes Mode Resolution H. Frequency(kHz) V. Frequency(kHz) VGA M03H 720 * 400 31.47 70.09 VGA M13H 320 * 200 31.47 70.09 VGA M10H 640 * 350 31.47 70.09 VGA M12H 640 * 480 31.47 59.94 VESA VGA 640 * 480...

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