SERVICE MANUAL For your convenience, all service parts, identified in this manual are available through Eiki’s normal distribution channels. In addition to service part number, the generic descriptions have been given, where possible, to allow your service technicians to substitute equivalent components which might be available from other sources.
WARNING: The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is iden- tified with the line ( ) in the schematic diagram.
Specifications Projector Type Dimensions (W x H x D) Net Weight LCD Panel System Panel Resolution Number of Pixels Color System High Definition TV SIgnals Scanning Frequency Projection Image Size (diagonal) Horizontal Resolution Projection Lens Throw Distance Projection Lamp AV Input Jacks...
Adjustments after Parts Replacement Condenser lens adjustment Condenser lens-out adjustment Relay lens-out adjustment Contrast Adjustment R-Contrast adjustment G-Contrast adjustment B-Contrast adjustment Output voltage adjustment Fan voltage adjustment Pedestal adjustment NRS adjustment Signal center adjustment Black level adjustment PC offset adjustment PC gain adjustment AV gain adjustment Common center adjustment...
Circuit Protections This projector is equipped with the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it will automatically turn off by operating one of the following protection circuits. Fuse The fuse is located inside of the projector. When either the LAMP indicator or the READY indicator is not illuminated, fuse may be opened.
- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F) If the TEMP WARNING indicator still continues to flash, there may be defects on cooling fans or power supply cir- cuits.
Mechanical Disassemblies Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be ignored. Caution: The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety.
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Mechanical Disassemblies AV, AV Sub Board and Speaker removal Remove 1 screw to release a grounding wire. Pull the Rear Panel ass’y upward. Remove 4 screws and take AV Board off. Remove 4 screws and take AV Sub Board off. Remove 4 screws and take Speaker off.
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Mechanical Disassemblies Lamp Ballast Unit removal Remove 1 screw and disconnect the Lamp Socket. Remove 2 screws to take the Lamp Ballast ass’y upward off. Remove 4 screws to take the Lamp Ballast Board off. Lamp ballast board Filter Board removal Remove 3 screws and pull the Filter Board ass’y upward.
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Mechanical Disassemblies Power Box Cover and Fans(FN901, FN906) removal Remove 4 screws to take the Fan(FN901) off. Remove 4 screws to take the Fan(FN905) off. Remove 3 screws to take the Power Box Cover upward off. Power box cover Optical Unit removal Remove 1 screw to take the Lamp Cover off.
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Mechanical Disassemblies Optical Unit removal Step from previous procedure. Remove 6 screws to take the Optical Unit upward upward off. To mount optical unit, mount optical unit first then mount the Lamp assembly and Lamp Cover. Power and P.F. Board removal Remove 8 screws to take the Power Board ass’y upward off.
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Mechanical Disassemblies Fan (FN905) removal Remove 1 screw and take a Washer, Spring and Interlock Switch lever. Pull the Fan and duct ass’y upward, then remove the 2 screws to take the Fan (FN906) off. Temp Board and Fans (FN902, FN903, FN904) removal Remove 1 screw to take the Temp.
Optical Parts Disassemblies Before taking this procedure, remove Cabinet Top and Main Board following to the “Mechanical Disassemblies”. Disassembly requires a 2.0mm hex wrench and a screwdriver. Projection Lens removal Remove the Front Panel following to “Front Panel Removal” on “Mechanical Disassemblies”.
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Optical Pats Disassemblies Condenser lens disassembly Remove 2 screws and pull the Condenser Lens ass’y upward. Remove 4 screws to take the Lens off from the holder. Condenser Lens-Out disassembly Remove 2 screws and pull the Condenser Lens-Out ass’y upward. Remove 2 screws to take the Lens off from the holder.
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Optical Parts Disassemblies Relay Lens-Out disassembly Remove 2 screws and pull the Relay Lens-Out ass’y upward. Remove 2 screws to take the Lens off from the holder. Note: There is no mounting direction of the lens. Polarized Glass-In removal Remove each screw and pull the Polarized Glass-In ass’y upward. Unhook the stoppers and take the glass off upward.
Optical Parts Disassemblies Polarized Glass-Out removal Remove 4 screws and take the LCD/Prism ass’y off upward from the optical unit. Remove each screw and take the glass off upward. Note: Do not replace the LCD panel separately otherwise it can not obtain proper picture.
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Optical Parts Disassemblies Locations and Directions When mounting or assembling the optical parts in the optical unit, the parts must be mounted in the specified location and direction as shown in figure below. The printed marker comes this side. The printed marker comes this side.
Mounting Procedure: Loosen 4 screws A on the LCD Panel/Prism ass'y with 2.0 mm hex driver. Turn the projector on and project the image with WIDE zoom, and adjust the FOCUS control to obtain the best focus. Turn the ZOOM control to the TELE position.
WARNING: - For continued safety, replace with a lamp assembly of the same type. - Allow the projector to cool for at least 45 minutes before you open the lamp cover. The inside of the projector can become very hot.
Relay lens adjustment, you need to disconnect some connectors and FPC cables of LCD panels on the main board. Note: Do not disconnect connectors K8N, K8P, K8H, K8R and K8S on the main board, because the projector can not turn on due to operate the power failure protection.
Optical Adjustments Condenser Lens adjustment Turn the projector on by a state of without FPC cables. Project only green light on the screen. Adjust the adjustment base of condenser lens assy to make color uniformity in green. 1) If the shading appears on the left or right of the screen as shown in Fig.2-1, loosen 2 screws...
Optical Adjustments Condenser Lens-Out adjustment Turn the projector on by a state of without FPC cables. Project green and blue lights on the screen. Adjust the adjustment base of condenser lens-out assy to make color uniformity in cyan. 1) If the shading appears on the left or right of the screen as shown in Fig.3-1, loosen 1 screw...
Optical Adjustments Relay lens-Out adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of relay lens assy to make color unifor- mity in white. 1) If the shading appears on the left or right of the screen as shown in Fig.4-1, loosen 1 screw...
Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time for more than 3 seconds. The service menu appears on the screen as follows.
Electrical Adjustments Circuit Adjustments CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow- ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per- formance and product safety. [Adjustment Condition] Input signal Video signal ...
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Electrical Adjustments NRS adjustment 1. Receive the 16-step grey scale computer signal. 2. Set to COMPUTER mode. 3. Connect an oscilloscope to test point “TP3551” (+) and chassis ground (-). 4. Enter the service mode, select group no. “ “ ”...
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Electrical Adjustments PC Offset adjustment 1. Receive the 16-step gray scale computer signal. 2. Set to COMPUTER mode. 3. Enter the service mode. [R-OFFSET ADJUSTMENT] 4. Connect an oscilloscope to test point “ and chassis ground (-). 5. Select group no. “ ”, item no.
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Electrical Adjustments AV Gain adjustment 1. Receive the 16-step gray scale video signal. 2. Set to VIDEO mode. 3. Enter the service mode. [R-GAIN ADJUSTMENT] 4. Connect an oscilloscope to test point “ and chassis ground (-). 5. Select group no. “ ”, item no.
Electrical Adjustments Adjustment Item Cinema LTI_LEVEL Group: 2 L3E07050 (Digital Gamma, Color Shading & Timing Controller) R_SUB_BRT G_SUB_BRT B_SUB_BRT R_SUB_GAIN G_SUB_GAIN B_SUB_GAIN PC, DVI Standard Standard G GAMMA SHIFT Standard R GAMMA SHIFT Standard B GAMMA SHIFT Standard GAMMA 0 Standard GAMMA 1 Standard GAMMA 2 Standard GAMMA 3...
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Electrical Adjustments Adjustment Item AV Cinema Green AV Cinema Blue AV Cinema Sharpness AV Cinema Gamma Group: 500 ADC ADC R-OFFSET ADC G-OFFSET ADC B-OFFSET ADC R-GAIN ADC G-GAIN ADC B-GAIN Group: 510 NTSC Gakaku NTSC TOTAL DOTS NTSC DISP DOTS NTSC H BACK PORCH NTSC V BACK PORCH NTSC DISP LINE...
Troubleshooting No Power The possible causes of No Power are listed below. Please check following and refer to power supply and protection cir- cuits diagram in the figure opposite. 1. Stop the operation of power supply circuit due to detection of abnormality. - Detected the abnormality on the secondary power supply lines.
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Troubleshooting Power supply drive and protection diagrams and locations SW902 F601 F601 SW904 SW902 Fuse AC IN Interlock sw. Thermal sw. Fan Control 15.5V Power Oscillator Circuit P-FAIL Q661 15.5V 5V_SW FAN DRIVE1 POWER BOARD SW904 LAMP BALLAST UNIT P.F BOARD TSW611 IC611 P.F.CONTROL...
Troubleshooting No Picture The possible causes of No Picture are listed below. Please check following and refer to video signal processing dia- grams in the figure opposite. 1. No picture from Video source Composite Video Input Check composite video signal at pins 45 and 46 of K10U on AV Board and K3U on Main Board.
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Troubleshooting Video Signal processing diagrams HD_VSYNC HD_HSYNC Cb_SW Cr_SW -38-...
Troubleshooting No Sound 1. No audio signals at AV input circuit. Check audio signals at pins14 and 15 of IC5011 on AV Board. Check IC5011 and peripheral circuits. 2. Incorrect operation of VIDEO/COMPUTER mode switching. Check AV/PC switching signal at pins 10 and 11 of IC5011.
Control Port Functions System Control & I/O Port Table (IC801) Pin No. Name Function Name PE5/D5 POWER_SW PE6/D6 SYS SW PE7/D7 LAMP_SW PD0/D8 DATA0 PD1/D9 DATA1 PD2/D10 DATA2 PD3/D11 DATA3 PD4/D12 DATA4 PD5/D13 DATA5 PD6/D14 DATA6 PD7/D15 DATA7 CVCC CVCC PC0/A0 ADDRESS0 PC1/A1...
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Control Port Functions Pin No. Name Function Name PF7/¢ ¢ PF6/AS PF5/RD PF4/HWR PF3/LWR/ADTRG/IRQ3 IRO_CS PF2/WAIT TURBO_CS PF1/BACK/BUZZ SDA 4 PF0/BREQ/IRQ2 FLASH_MODE P30/TxD0 PW TX P31/RxD0 PW RX P32/SCK0/SDA1/IRQ4 SDA 2 P33/TxD1/SCL1 SCL 2 P34/RxD1/SDA0 SDA 1 P35/SCK1/SCL0/IRQ5 SCL 1 BLAST_SW P77/TXD3 MCI TX...
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Control Port Functions IIC Bus I/O Expander (IC1851) Port Functions Pin No. Name Function Reset IIC SCL IIC SDA CARD_IN VIEWER_ON SCDT1 TURBO_LED WARNING_LED LAMPREP_LED READY_LED Not used Chip Select 2 Chip Select 1 Chip Select 0 IIC Bus I/O Expander (IC2181) Port Functions Pin No.
Cleaning After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit. Remove dust and other particles using air spray.
Electrical Parts List Product safety should be considered when a component replacement is made in any area of a projector. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark.
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Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. OUT OF CIRCUIT BOARD Interlock switch (SW904) F601 Fuse Line Filter Board AV Sub Board AV Board Temp Board Thermal Switch (SW902) Power Board -56- MM8-NB3E00 Lamp Ballast Unit FN906...