Eiki LC-XG210 service manual No Picture, No picture from Video source, No picture from DVI source

Page 49

Troubleshooting

No Picture

The possible causes of No Picture are listed below. Please check following and refer to the chapter “Inputs & video sig- nal processing stage”, “LCD panel driving stage” in the Chassis Block Diagrams on the previous page.

1.No picture from Video source

Composite Video Input

Check that the composite video signal is observed at the following points;

Pin 16 of K8D, pins 4, 3 of IC141, pin 4 of IC1141, pin 88 of IC1101 (NTSC), pin 7 of IC2101 (PAL) on the Main Board.

Check that the Y/C signals are observed at the following points;

Pins 83, 84 of IC1101, pins 1, 13 of IC1141(NTSC), pins 25, 27 of IC2101, pins 2 12 of IC1141 (PAL), pins 15, 14 of IC1141, pins 5, 7 of IC3101.

S-Video Input

Check that the Y/C signals are observed at the following points;

Pins 14 (Y), 12(C) of K20Q and K8D, pins 43, 44 of IC3101.

Component Input

Check that the component signals are observed at the following points;

Pins 4 (CR), 6 (CB), 8 (Y) on K20Q and K8D, pins 17, 18, 19 of IC3101, pins 73, 74, 75 of IC4101.

All of video signals

Check that the RGB signals are observed at the following points;

Pin 35, 37, 39 of IC4101, TP13R, TP13G, TP13B, pins 11, 13, 15 of IC3201.

Check that the SYNC signals are observed at the follow- ing points;

Pins 28, 29 of IC4101, pins 1, 2 of IC6181, test points TPVD, TPHD, pins 13, 15 , 7, 5 of IC4281.

3.No picture from DVI source.

Check 5V power supply(5VDVI) at pins 6 and 7 of K10R and K26D on the power DC board.

Check Sync signal at pins 2, 4, 16, 18 of IC8001.

Check ICs IC8001, IC8061, IC8071, IC8081 and peripher- al circuits.

4.No picture from all of sources

Check RGB S&H signals at test points TP501, TP531, and TP561.

Check that the SYNC signals are observed at test point TPDHS and TPDVS, pins 7 and 8 of IC401.

Check NRS signal at test point TP2531, TP2561.

Check power supply circuit 15.5V and 15VP and peripher- al circuit.

Check ICs IC501, IC531, IC561, IC3501, IC3531, IC3561, IC2531, IC2561, IC401 and peripheral circuits.

2. No picture from Computer source

Check that the RGB signals are observed at the following points;

Pins 1, 3, 5 of IC3001 for Computer2 mode, pins 8, 10, 13 of IC3001 for Computer1 mode, pins 20, 18, 16 of IC3001, test points TP21R, TP21G, TP21B, pins 5, 13, 20 of IC201.

Check PC1/PC2 switching signal is correct. Computer1: Low, Computer2 High on pin 22 of IC3001.

Check that the SYNC signals are observed at the follow- ing points;

Pins 8, 3, 1, 6 of IC3021 and IC3022, pins 2, 5, 13, 11 of IC7201, test points TP814, TP815, pins 2, 4, 18, 16 of IC8041, test points THGHS, TPGVS, pins 34, 133 of IC301.

Check PC1/PC2 switching signal is correct. Computer1: Low, Computer2 High on pin 2 of IC3021 and IC3022.

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Contents Reference NO. SM5110512-01 Effective fromCorrection How to check Lamp Replace CounterLamp replace counter data Reference NO. SM5110512-00 Original VersionContents Safety Precautions Safety InstructionsSpecifications Optical Adjustments Electrical Adjustments Adjustments after Parts ReplacementFuse Circuit ProtectionsRecommendation Cabinet Top removal Mechanical DisassembliesCabinet Front-Top Cabinet Front removal AV, COM Board & Rear Panel removalAudio Board removal D DOptical Unit removal Speaker base removalLamp Ballast Board removal Fan & Motor removalFans FN901, FN902 removal Line Filter Board & Interlock SW removalProjection Lens removal Optical Parts DisassembliesPolarized Glass-In removal Lever-A2Polarized glass and optical filter mounting direction 1Prism ass’y removal and disassemblyIntegrator-In disassembly Relay Lens disassemblyRelay Lens Optical Unit Top removal Condenser Lens disassemblyComes to the mirror side Locations and DirectionsImportant Notice on LCD Panel/Prism Assy Replacement LCD Panel/Prism Ass’y ReplacementLCD Panel/Prism Ass’y removal How to reset Lamp Replace Counter Lamp ReplacementProcedure Reset the Lamp Replace Counter, see below explanationContrast adjustment Optical AdjustmentsBefore Adjustment White b Moving of Slot B Moving of Slot D Condenser Lens adjustmentRelay Lens-Out adjustment White Moving of Slot B White b Moving of Slot D Mirror adjustmentIC808 is not defective Electrical AdjustmentsFan Voltage adjustment Circuit AdjustmentsVideo Center adjustment Adjustment ConditionPedestal adjustment PC NRS adjustmentVideo Gain adjustment PC Black Level adjustment PCD Ref. Voltage adjustment Video Luminance adjustment adjustment PCPedestal adjustment Video D Input adjustment VideoPedestal adjustment Component 12 A/D Input adjustment ComponentWhite Balance adjustment Video Gain adjustment ComponentLuminance adjustment Video Common Center adjustmentTest Points and Locations Service Adjustment Data Table Group 4 L3E07050 Group 6 TC90A69F IP Conversion Dnrynoiseth Dnrysense Dnrymotionth Group 21 MB40C348 Group 22 ICSdata Group 519 RGB PAL Gakaku Block DiagramsView IC4261 Inputs & video signal processing stageA S&H LCD Main Board AV BoardMain Board Audio Board Motor driving circuitControl FAN1 Power supply & protection circuitNo Power TroubleshootingAbnormality occurs on the power circuit No picture from Video source No PictureNo picture from DVI source No picture from all of sourcesNo Sound Lens Motor ProblemsSystem Control & I/O Port Table IC801 Control Port FunctionsControl Port Functions Name Function Name Polarity Parallel I/O Expander IC1801, M66500FPIIC Bus DA Converter IC281, M62393FP Port Functions IIC Bus I/O Expander IC5581, M62320FP Port FunctionsIIC Bus DA Converter IC3291, M62398FP Port Functions IIC Bus DA Converter IC1501, M62399FP Port Functions IIC Bus DA Converter IC1531, M62399FP Port FunctionsIIC Bus DA Converter IC4881, M62393FP Port Functions Waveform Gvspw Tpgvs DHS Tpdhs DVS Tpdvs Cleaning with air spray CleaningIC Block Diagrams IC Block Diagrams BA7078AF SynC. Detector, IC7201 BA7655 Audio Pre-amp, IC001 IC Block Diagrams IC Block Diagrams M62392 D/A, IC3291 M62393 D/A, IC281, IC4881 M62399 D/A, IC1501, IC1531 ML60851 USB Driver, IC9801 IC Block Diagrams IC Block Diagrams TDA1517ATW Audio Output, IC031 Read Description in the parts list Electrical Parts ListOUT of Circuit Board OUT of Circuit Boards Assemblied Boards610 308 1724 ASSY,PWB,MAIN MH7A Electrical Parts List Electrical Parts List Electrical Parts List Integrated Circuit Capacitor C145 403 283 POS-SOLID C343 403 164 MT-GLAZE Resistor Network MT-GLAZE 1K JA R239 401 2003 R3205 401 105 7909 R414 401 3901 R4829 401 105 7909 MT-GLAZE 3K FA Transformer Temp Sensor Board 610 302 6435 ASSY,PWB,AUDIO MC3A610 301 1950 ASSY,PWB,TEMP.SENSOR MC3A 610 303 4799 ASSY,PWB,A/V MC3B BoardIC UPD78F9801GB-8ES-MC3A FILTER,EMI 25MHZ 610 304 9502 ASSY,PWB,R/C Front MC3B Front BoardCOM Board 610 306 0279 ASSY,PWB,COM. MC3ABIC AD8185ARU C3081 403 164 0204 610 303 4812 ASSY,PWB,CONTROL MC3B Control BoardKey No. Part No Description AccessoriesM15 M14 Mechanical Parts ListOptical Parts L10 Focus Zoom100 L14 L22 L23 102 Mechanical Parts List 103 Key to better communications Canada
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LC-XG210 specifications

The Eiki LC-XG210 is a high-performance LCD projector designed for professional presentations and educational use. This projector stands out due to its impressive brightness, exceptional image quality, and versatile connectivity options, making it an ideal choice for a variety of settings, including classrooms, conference rooms, and auditoriums.

One of the primary features of the Eiki LC-XG210 is its remarkable brightness, with a lumen output of 3,200 ANSI lumens. This high brightness level ensures that presentations remain vibrant and clear, even in well-lit environments. Coupled with a native resolution of XGA (1024 x 768 pixels), the projector delivers sharp text and detailed images, making it suitable for displaying both graphics and video footage.

The LC-XG210 utilizes advanced 3LCD technology, which ensures accurate color reproduction and enhanced color brightness. This technology provides a wide color gamut, allowing users to enjoy rich and lifelike colors without any noticeable color distortion. The projector also features a high contrast ratio, contributing to deeper blacks and more vivid images, further enhancing the overall viewing experience.

Connectivity is a crucial aspect of the Eiki LC-XG210, and it excels in this area with a range of input options. It includes multiple VGA inputs, composite and S-Video inputs, as well as a USB port for easy connection to computers and other devices. This flexibility allows users to seamlessly switch between different sources without the need for additional adapters.

Additionally, the projector is equipped with a powerful built-in speaker that delivers clear audio, eliminating the need for external sound systems in smaller venues. Its lightweight and portable design make it easy to transport, enabling users to set it up quickly in various locations.

The Eiki LC-XG210 also boasts a user-friendly interface and advanced features such as automatic keystone correction, which simplifies the setup process by automatically adjusting the image to fit the screen perfectly. This projector is designed for reliability and longevity, evident in its long lamp life of up to 5,000 hours in eco mode, reducing maintenance costs and enhancing overall value.

In summary, the Eiki LC-XG210 is a versatile and powerful projector that combines high brightness levels, advanced LCD technology, and extensive connectivity options. These features make it an excellent choice for any professional or educational environment, ensuring outstanding image quality and reliability for diverse presentation needs.
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