Eiki LC-X71 Service Manual Page 1

Multimedia ProjectorSERVICE MANUAL PRODUCT CODE LC-X71 1 122 340 01 (KE6B)LC-X71 1 122 341 01 (LE6B)LC-X71L 1 122 340 21 (KE6BL)LC-X71L 1 122 341 21

- 10 -1 Remove 2 screws A to take the Prism Base ass’yupward off.2 Remove 2 screws B to take the Lens Shift Motor andSensor SW Holder from the Base.Me

KE6-X7100KE6-X71L00-100-49 645 041 3711 ASSY,PRISM(PBS) 645 051 9420 ASSY,PRISM(PBS) 50 645 085 7836 LENS,CONDENSER (G)

KE6-X7100KE6-X71L00-101-Note: Parts order must contain Chassis No., Optical Unit Type-L or Type-R, Part No., and Descriptions. 464646Optical Parts Lis

KE6-X7100KE6-X71L00-102-Optical Parts List58464648484755464671-a: R71-b: G71-c: B71R/L47474771-d : B71-e: G(R = no use)

KE6-X7100KE6-X71L00-103-CAUTION:Part must be placed in specified direction when replacing the optical parts. Please see “Optical Parts Disassemblies”

(LC-X71,LC-X71L) MAY 2006© 2006 Eiki International, Inc.A-key to better communications

A1KE6-X7100KE6-X71L00 Diagrams & DrawingsThese schematic diagrams and printed wiring board drawings are part of the serv-ice manual original for

A17 Pin description of diode, transistor and ICAKCBEC2C1B1 B2ECCBEKACBEB2B1C1C2EEBCB2B1C1C2EB2B1C1C2E1E2KAAAKKKAKACBECBECBE123456Index12NIndexIndex12

Diagrams & Drawings (LC-X71, LC-X71L)

- 11 -1 Remove 1 screw A to take Interlock Switch(SW902).2 Remove 2 screws B to take Filter Board Holder andremove 2 screws C to take Filter Board fro

- 12 -Optical Parts DisassembliesBefore taking this procedure, remove Cabinet Top and Main Board following to the “Mechanical Disassemblies”.Disassemb

- 13 -Optical Pats Disassemblies1 Remove each hex screw A and pull the Polarized Glass-In ass’y upward.2 Remove each hex screw B and pull the Optical

- 14 -1 Remove 4 hex screws A and take the LCD/Prism ass’y off upward.2 Remove 3 screws B and take the Glass Holder, and then pull the polarizedGlass-

- 15 -1 Remove 7 screws to take the Optical Unit Top off upward.Optical Unit Top removal1 Remove 2 hex screws A and take the Condenser Lens ass’y.2 Re

- 16 -Optical Parts DisassembliesWhen the optical parts in the optical unit mounting or assembling, theparts must be mounted in the specified location

- 17 -LCD Panel/Prism Ass’y Replacement1 Remove the cabinet top and main board following to“Mechanical Disassemblies”.2 Remove 4 screws by using the 2

- 18 -RRLLLCD Panel/Prism Ass'y Type-R LCD Panel/Prism Ass'y Type-LNOTE:LCD panel/prism assembly should be used with the same type of the op

The LAMP REPLACE indicator will light when the totallamp used time (corresponding value) reaches 2,500hours. This is to indicate that lamp replacement

- 2 -ContentsContents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Safety Instructio

- 20 -● : Adjustment necessary ❍ : Check necessaryAdjustments after Parts ReplacementCondenser lens adjustment ❍●Relay lens adjustment ❍●Contrast Adju

- 21 -B-Polarized GlassMounting Ass'yand BaseR-Polarized GlassMounting Ass'yand BaseG-Polarized GlassMounting Ass'yand BaseAAAFig.1-2Op

- 22 -Optical AdjustmentsFig.2-21 Tu rn the projector on by a state of without FPC cables.2 Adjust the adjustment base of condenser lens ass’y to make

- 23 -1 Tu rn the projector on by a state of without FPC cables.2 Adjust the adjustment base of relay lens ass’y to make color unifor-mity in white.1)

- 24 -To enter the service modeTo enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time formore than

- 25 -Circuit AdjustmentsCAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-ing adjustment

- 26 -1. Receive the 16-step gray scale computer signal withInput 1 [RGB(Analog)] mode.2. Enter the service mode.3. Connect a digital voltmeter to tes

- 27 -Electrical Adjustments1. Receive the 16-step gray scale computer signal withInput 1 [RGB(Analog)] mode.2. Enter the service mode.3. Select group

- 28 -Electrical Adjustments1. Receive the 100% whole-white composite video sig-nal with Input 3 [Video] mode.2. Enter the service mode.3. Measure lum

- 29 -Electrical Adjustments● MAIN BOARDTPFN3TPFN7TPFN6TPFN4FAN1FAN2TP501TP503TP531TP533TP561TP563K47AK47BK8LIC5881IC5891K8RIC4811K8MIC4871IC7821K8NIC

- 3 -Safety InstructionsWARNING:The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side ofthe c

- 30 -0 Thermal Monitor (Read only)0 LM76(Temp) A Monitor - - Sensor A for External IC16911 LM76(Temp) B Monitor - - Sensor B for Lamp IC18162 LM

- 31 -115 Lamp Go Out0 Lamp Go Out 0 - 0: Disable / 1: Enable116 Lamp Replace Display0 Display when lamp replace time 0 0 / 1 0: Disable / 1: Enable12

- 32 -28 Real G_GAM_BRT 0 -4096 ~ 4095 Differential data of white balance adjustment at Real mode29 Real B_GAM_BRT 0 -4096 ~ 409530 Real R_GAM_BRT 0 -

- 33 -15 CM_IsAccess 1 0 ~ 1 For debug310 AD98820 GREEN_OFFSET 63 0 ~ 1271 RED_OFFSET 63 0 ~ 1272 BLUE_OFFSET 63 0 ~ 1273 GREEN_GAIN 78 0 ~ 2554 RED_G

- 34 -0Total Dots 858 0 ~ 3000 Read only1 Disp Dots 668 0 ~ 30002H Back Porch 112 0 ~ 30003V Back Porch 47 0 ~ 30004Disp Line 456 0 ~ 15005-7 Not used

- 35 -0Total Dots 1980 0 ~ 3000 Read only1 Disp Dots 1250 0 ~ 30002H Back Porch 288 0 ~ 30003V Back Porch 34 0 ~ 30004Disp Line 700 0 ~ 15005-7 Not us

- 36 -0Total Dots 1980 0 ~ 3000 Read only1 Disp Dots 1250 0 ~ 30002H Back Porch 276 0 ~ 30003V Back Porch 34 0 ~ 30004Disp Line 700 0 ~ 15005-7 Not us

- 37 -0Total Dots 2200 0 ~ 30001 Disp Dots 1874 0 ~ 30002H Back Porch 220 0 ~ 30003V Back Porch 54 0 ~ 30004Disp Line 1050 0 ~ 15005-7 Not used8 VSBEG

- 38 -6 Alpha Brightness /120/120/120/120/120/120/120120/120/120/1207Alpha Color /120/120/120/120/120/120/12010/10/10/108Alpha Tint /10/10/10/10/10/10

- 39 -720 2:2pull down setting0 22Film Mode Sensitivity 4 1 ~ 5 Film Detection Sensitivity <FILMSTVT22>1 22Film Mode Threshold Low 80 0 ~ 32767

- 4 -SpecificationsOwner’s Manual (CD-ROM)Quick Reference GuideAC Power CordWireless/Wired Remote Control Transmitter and BatteriesVGA CableUSB CableC

IC4401FPGA2R-LCD PANEL G-LCD PANEL B-LCD PANELINPUT-1RGB IN/OUTINPUT-3NETWORKOPTIONIC1201FPGA1IC1651PRE-AMP.IC2003CV SELECTSWSWIC9201AV A/DIC3231SYNC

- 41 -Chassis DescriptionIC301SCANCONVERTER,SYSTEMCONTROL<PW388>R-LCDPA N E LG-LCDPA N E LB-LCDPA N E LSTB/SCLK/SDATA_GAMK25B K25G K25RBOUT ROUT

- 42 -Chassis DescriptionQ5002Q1683Q1636Q1681Q5001Q5004Q5303Q5007115253125142152336512109103,147711217 1713161536Mute: HMute: HMute: LMonitor out ON :

- 43 -K8DK66DIC801MAIN CPU<HD6417727>MAIN BOARDSUB POWER BOARDFAN_CONT1FAN_CONT2FAN_CONT2IC7821Q6603IC6603<FA7701>D7832Q7821Q7841Q7881Q786

- 44 -Chassis Description10562IC1602ZOOM DRIVE<LB1641>MZOOM102IC1611FOCUS DRIVE<LB1641>MFOCUS102IC1872BUFFERIC4801I/O EXPANDER<TIC81592

- 45 -LED-On: HCONTROLI/FIC802EEPROMIC302EEPROMIC1652AUDIOCONTROLIC1814,16TEMP.SENSOR217,216233234210211133,135,136235,236,23837-4052,5329,3031,3233,3

- 46 -A/V BOARDI/F BOARDS16V16VAS-6VK6ABRIDGEDIODEIC601P. F .CONTROLBOOSTERIC651 SWITCHINGREGULATORT651CONVERTERTRANS.3-4 25 8-101-2 2-4 1-2 123456ACI

✽ ✪ ● ❍✽ ● ❍ ❍✽ ● ❍ ●● ● ● ●✽ ✪ ❍ ❍✽ ● ● ❍✪ ✪ ✪ ❍✽ ● ✪ ●✽ ✪ ❍ ●✪ ● ● ❍✪ ● ❍ ❍❍ ✽ ● ●- 47 -Chassis DescriptionLED indication and projector condition❍•

- 48 -Chassis DescriptionDetection of Power failureThe projector provides a protection circuit to prevent the secondary failure when the power failure

- 49 -Chassis DescriptionPower failure detection tree3.3VS16VS6V6V1.8VIC14215VIC5891VD1.8VIC92923.3V113.5VIC159215.5VIC1591S5VIC58813.3V_AD2L262MAIN_3

- 5 -● Interlock switchThe interlock switch (SW902) cuts off the AC mains power supplywhen the lamp cover is removed. After opening the lamp cover for

- 50 -Chassis DescriptionDiagnosis of power failure with RS-232C portDiagnosis procedureThis projector provides a function to get the error informatio

- 51 -Chassis DescriptionError history logGroup No. Item No. Data (Error Code) <-- See table below91 0 ❋ <-- The Latest Error1 ❋2 ❋3 ❋::::::48 ❋

- 52 -Control Port Functions● System Control & I/O Port Table (IC801, HD6417727F)1 1.9V Power for RTC(1.9V) - -2 (Not used) X'TAL for bu

- 53 -68 A5 Address Bus - O69 A6 Address Bus - O70 A7 Address Bus - O71 A8 Address Bus - O72 A9 Address Bus - O73 A10 Address Bus - O74

- 54 -137 GND Power (0V) - -138 PW_RESET Reset for PW Reset with L>H>L O139 1.9V Power (1.9V) - -140 PW_SEL PIXEL 232C Selection SH:

- 55 -206 NET_SW Switch On/Off for PJ-Net Power L:On, H: Off O207 GND Power for Inout/Output(0V) - -208 FPGA_CLB Initialize for circuit H aft

- 56 -● Parallel I/O Expander (IC4801, TIC81592GP)1 S3.3V - --2 XIN Clock input (14.7456MHz) I3XOUT Open O4 GND - --5 S3.3V - -6D7 Data Bus 7 I/O7D6 D

- 57 -68 M/A_PF Power Fail Detection M/A L: Error I69 FAN_PF Power Fail Detection FAN L: Error I70 SWF_1.2V_PF Power Fail Detection SWF_1.2V L: Error

WaveformsVIDEO-IN <TP-YIN>Component_Y-IN <TP-YIN> Component_CB-IN <TP-CBIN>Component_CR-IN <TP-CRIN>R-IN <TP-RIN> G-IN &

- 59 -CleaningCleaning with air spray1. Remove the cabinet top following to “MechanicalDisassemblies”.2. Clean up the LCD panel and polarizing plate b

- 6 -Circuit Protections● Warning temperature and power failure protectionThe WARNING TEMP. indicator flashes red and the projector will automatically

- 60 -IC Block Diagrams● AD8183ARU/AD8185ARU <Selector, IC201, IC1201>AD8183/AD8185IN0BGNDIN1BGNDIN2BIN0ADGNDIN1AGNDVEEVCCIN2A123456789101112VCC

- 61 -IC Block Diagrams● CXA7004R <LCD Driver, IC501, IC531, IC561, IC1501, IC1531, IC1561>● CXD3531R <Digital Signal Driver & Timing Gen

- 62 -IC Block Diagrams● CXD3807 <AV A/D, IC9201>● EDD2516 <DDR Memory, IC1301, IC1311,IC1321,IC1331>

- 63 -● FA5502M <P. F. Controller, IC601>IC Block Diagrams● EM638325TS <DDR Memory, IC1801>

- 64 -IC Block Diagrams● Motor DriveLB1641 <IC1602, IC1611>,LB1645N <IC1601>● IDT70V24S15PFG <DP RAM, IC4701>● SP232 <RS-232C Dri

- 65 -IC Block Diagrams● PW388 <System Control & Scan Converter, IC301>● STR-Z2156A <Power Switching, IC651>

- 66 -IC Block Diagrams● TA1370FG <Sync Separator, Frequency Counter, IC3231>● TIC81592 <I/O Expander, IC4801>Divide

- 67 -IC Block Diagrams● TDA1517ATW <Audio Output, IC1681, IC1682>

KE6-X7100KE6-X71L00-68-Electrical Parts ListProduct safety should be considered when a component replacement is made in any area of a projector. Compo

KE6-X7100KE6-X71L00-69-Electrical Parts ListNote: Parts order must contain Chassis No., Part No., and Descriptions. ● OUT OF CIRCUIT BOARDF601FusePowe

- 7 -1 Remove 5 screws A, 2 screws B, and loosen 2 screwsC, and then take the Cabinet Top upward off.Note: If you want to remove the Cabinet Front-Top

Electrical Parts List!610 307 7772 ASSY,PWB,CONT. MR3B!610 307 7789 ASSY,PWB,SENSOR MR3B!610 307 7796 ASSY,PWB,RC FRONT MR3B!610 307 7802

KE6-X7100KE6-X71L00-71-Electrical Parts ListC1681 403 281 5215 CERAMIC 0.22U Z 16V C1682 403 376 3119 ELECT 100U M 25V

KE6-X7100KE6-X71L00Electrical Parts List-72-405 147 2215 TR 2SA1037AK-S-T146 405 002 0318 TR 2SA1037K T146 R 405 002 0417 TR 2SA

KE6-X7100KE6-X71L00-73-Electrical Parts ListQ801 405 045 8725 TR 2SK536-TB Q802 405 045 8725 TR 2SK536-TB

403 368 7316 CERAMIC 10U K 6.3V C1281 403 343 3715 CERAMIC 0.1U Z 25V C1282 403 343 3715 CERAMIC 0.1U Z 25V C

KE6-X7100KE6-X71L00-75-Electrical Parts ListC2591 403 401 3817 ELECT 10U M 25V C2593 403 343 3715 CERAMIC 0.1U Z 25V

C365 403 442 2015 CERAMIC 1U Z 10V C366 403 343 3715 CERAMIC 0.1U Z 25V C367 403 343 3715 CERAMIC 0.1U Z

KE6-X7100KE6-X71L00-77-Electrical Parts ListC568 403 343 3715 CERAMIC 0.1U Z 25V C569 403 398 4118 ELECT 47U M 16V

C832 403 343 3715 CERAMIC 0.1U Z 25V C833 403 343 3715 CERAMIC 0.1U Z 25V C834 403 343 3715 CERAMIC 0.1U Z

KE6-X7100KE6-X71L00-79-Electrical Parts ListR1304 401 224 9313 MT-GLAZE 1K JA 1/16W R1305 401 226 1513 MT-GLAZE 0.000 ZA 1/16W

- 8 -Mechanical Disassemblies1 Remove 6 screws to take the Main Board upward.Fig.3Fig.41 Remove 1 screw A and take the Rear Panel ass’yupward off.2 Re

R2213 401 224 9214 MT-GLAZE 15K JA 1/16W R2214 401 225 1316 MT-GLAZE 470 JA 1/16W R2215 401 301 3517 MT-GLAZE 200 JA

KE6-X7100KE6-X71L00-81-Electrical Parts ListR329 401 224 9016 MT-GLAZE 10K JA 1/16W R3291 401 226 1513 MT-GLAZE 0.000 ZA 1/16W

R4477 401 224 8811 MT-GLAZE 100 JA 1/16W R4478 401 224 8811 MT-GLAZE 100 JA 1/16W R448 401 226 1513 MT-GLAZE 0.000 ZA

KE6-X7100KE6-X71L00-83-Electrical Parts ListR5212 401 226 1513 MT-GLAZE 0.000 ZA 1/16W R5213 401 226 1513 MT-GLAZE 0.000 ZA 1/16W

R6791 401 224 8811 MT-GLAZE 100 JA 1/16W R6792 401 224 8811 MT-GLAZE 100 JA 1/16W R7801 401 225 8117 MT-GLAZE 10 JA

KE6-X7100KE6-X71L00-85-Electrical Parts ListR845 401 226 1513 MT-GLAZE 0.000 ZA 1/16W R846 401 226 1513 MT-GLAZE 0.000 ZA 1/16W

RB1206 645 036 3528 R-NETWORK 0X4 1/32W 645 037 0816 R-NETWORK 0X4 1/32W RB1207 645 036 3528 R-NETWORK 0X4 1/32W 6

KE6-X7100KE6-X71L00-87-Electrical Parts ListRB561 645 036 3528 R-NETWORK 0X4 1/32W 645 037 0816 R-NETWORK 0X4 1/32W RB562

L3402 645 059 2249 INDUCTOR,2.2U M L3403 645 059 2249 INDUCTOR,2.2U M L3404 645 059 2249 INDUCTOR,2.2U M

KE6-X7100KE6-X71L00-89-Electrical Parts List405 014 4618 TR 2SC2412K T146 S 405 015 8724 TR 2SC2812-L6-TB 405 015 8922 TR 2SC

- 9 -Mechanical Disassemblies1 Remove 4 screws A to take the Ballast Cover upwardoff.2 Remove 3 screws B to take the Fan (FN904) and theFan mounting b

C2007 403 164 0214 CERAMIC 0.1U Z 25V C2008 403 164 0214 CERAMIC 0.1U Z 25V C2009 403 164 0214 CERAMIC 0.1U Z

KE6-X7100KE6-X71L00-91-Electrical Parts ListR1111 401 260 4112 MT-GLAZE 75 JA 1/3W R1116 401 255 6510 MT-GLAZE 100 JA 1/10W

R3816 401 150 5915 MT-GLAZE 10K JA 1/10W R3817 401 255 6510 MT-GLAZE 100 JA 1/10W R3818 401 150 5915 MT-GLAZE 10K JA

KE6-X7100KE6-X71L00-93-Electrical Parts ListD3004 407 149 0817 DIODE 1SS355-TE-17 D3006 407 149 0817 DIODE 1SS355-TE-17

Q651 405 134 5925 TR 2SA1037AK-T146-R 405 147 2215 TR 2SA1037AK-S-T146 405 002 0318 TR 2SA1037K T146 R 405 002 041

KE6-X7100KE6-X71L00-95-Electrical Parts ListDIODE D601 407 247 8824 DIODE RF101L2S

C6661 403 169 2817 CERAMIC 330P J 50V C6662 403 420 2112 EP-ELECT 820U M 4V C6663 403 347 5517 POS-SOLID 470U M

KE6-X7100KE6-X71L00-97-Electrical Parts ListC1601 403 410 6915 ELECT 1000U M 16V C1602 403 149 9218 CERAMIC 0.01U Z 50V

KE6-X7100KE6-X71L00-98-Mechanical Parts ListNote: Parts order must contain Chassis No., Part No., and Descriptions. ● CABINET PARTS1171541032186115912

KE6-X7100KE6-X71L00-99-Mechanical Parts List1 610 306 8985 ASSY,BUTTON-MR3B 2 610 324 4358 COMPL,STAND LEG-MA8B 4 61