Eiki LC-X71 LC-X71L FAN control stage, FAN location, FN904 FN903, FN901 FN905, FN907 FN902

Page 43

Chassis Description

FAN control stage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S16V

Q6603

 

D6614

 

 

 

K66S

1

FN905 FN902

 

 

 

 

 

 

 

 

 

 

Q6608

Q6606

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

IC6603

 

 

 

D6611

K66L

 

 

 

 

 

 

 

 

 

 

FAN_DRIVE

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<FA7701>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

FAN_CONT2

 

 

 

 

 

 

D6612

 

 

 

 

 

 

 

 

 

 

 

Q6604

 

 

 

 

 

 

K66M

1

FN901

 

 

 

 

 

 

 

 

 

 

 

 

Q6601

 

D6616

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q6607

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

IC6601

 

 

 

D6613

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<FA7701>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT1

 

 

 

P

Q6609

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q6602

 

 

_

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAIL

 

 

 

 

 

 

 

 

SUB POWER BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

6

5

3

 

9

8

K66D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K8D

 

 

 

 

 

 

MAIN BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

213

FAN_DRIVE_CPU

 

IC1871

 

 

 

FAN_DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

BUFFER

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

FAN2

FAN1

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT2

 

 

PF

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S16V

 

 

 

 

TPFN4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

IC7821

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

Q7821

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN6

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7832

 

 

 

217

SH_SCL_S3V

SH_SCL_S5V

2

 

14

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

IC7841

 

 

 

 

 

 

 

 

 

216

SH_SDA_S3V

SH_SDA_S5V

3

 

 

Q7841

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN3

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7852

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

IC7881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q7881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN7

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7892

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

<HD6417727>

CPUMAIN

IC801

 

 

 

 

 

 

IC7801 DAC <M62399>

 

 

IC7861

 

D7831D7851D7891D7871

 

 

D7872 K8PK8OK8NK8M

1

FN903FN904FN906FN907

 

 

 

 

 

 

 

Q7861

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC4801

 

69

 

FAN_DRIVE

IC7802

 

 

 

 

Q7921

 

 

 

 

 

 

 

 

 

 

 

 

FAN_PF

 

 

 

 

 

 

 

 

 

D[0-7], A[0-5]

I/O

 

 

 

 

 

 

 

 

 

 

Q7922

 

 

 

 

 

 

 

 

 

56

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXPANDER

 

 

 

 

LAMP_FAN_PF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

233

 

 

 

IC4811

 

For ABNORMAL TEMP. DETECT

 

 

 

 

 

 

K8X

 

 

 

 

 

 

 

 

and FAN CONTROL

 

 

 

 

 

 

3,5

 

 

 

 

PRESS_SENS

 

PRESSURE

 

 

 

 

 

 

 

K16I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

1,2

 

1,2

 

 

1,2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

234

 

 

 

 

IC4871

 

 

 

 

 

IC1814

IC1816

 

 

IC1691

 

 

 

 

 

ACCELE_SENS

 

 

 

 

 

 

 

TEMP.

 

TEMP.

 

 

TEMP.

 

 

 

 

 

 

ACCELERATION

 

 

 

 

SENSOR

SENSOR

SENSOR

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR BOARD

 

 

FAN location

 

 

 

 

FN904

 

 

 

 

 

 

 

 

FN903

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

FN906

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FN901

 

 

 

 

FN905

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Intake)

 

 

 

 

(Exhaust)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FN907

 

 

 

 

 

 

 

 

 

 

FN902

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

(Intake)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 43 -

 

 

 

 

 

 

 

 

 

 

Image 43
Contents Original Version Contents Safety Precautions Safety InstructionsSpecifications Fuse Thermal switchInterlock switch Circuit ProtectionsRecommendation Cabinet Top removal Mechanical DisassembliesCabinet Front removal AV, I/F Board & Rear Panel removal Main Board removalFN905 Optical Unit removal Lamp Ballast Unit removalFN906 Power Board Power Board removalPrism Base removal SW902 Interlock SwitchFilter Board & Interlock SW & Thermal SW removal Fans FN901, FN902 removalRelay Lens Relay Lens disassemblyOptical Parts Disassemblies Projection Lens removalOptical filter HCP Polarized Glass-In removalLCD Panel/Prism Ass’y Polarized Glass-Out and Wide view Glass removalOut Optical Unit Top removal Condenser Lens disassemblyDescription Locations and DirectionsLCD Panel/Prism Ass’y removal LCD Panel/Prism Ass’y ReplacementImportant Notice on LCD Panel/Prism Assy Replacement Mounting ProcedureLCD Panel/Prism Assy Type-R Reset the Lamp Replace Counter, see below explanation Lamp ReplacementHow to reset Lamp Replace Counter ProcedureOptical Adjustments Electrical Adjustments Adjustments after Parts ReplacementMain Board Optical AdjustmentsContrast adjustment Before AdjustmentWhite b Slot B Moving of slot B Slot D Moving of Slot D Condenser Lens adjustmentWhite b Relay lens-Out adjustmentMoving of slot B White Cyan Screw D Moving of slot D Service Adjustment Menu Operation Electrical AdjustmentsIC802 is not defective Adjustment Condition Circuit AdjustmentsOutput Voltage adjustment +16V adjustmentPC Black Level adjustment Fan Voltage adjustmentPsig adjustment Video Center adjustment⁄0PC Gamma-shift adjustment PC Input adjustmentInput adjustment Common Center adjustment⁄3AV White Balance adjustment ⁄2AV Gamma-shift adjustmentMain Board Test Points and LocationsService Adjustment Data Table Not used DDC Setting RC KEY DisableTemp. warning setting Factory use Factory default settingCXD3807 Adjustment for AV inputPanel L/R setting 210 290 300 301 302 303311 M62393FP 310 AD9882400 Composite Ntsc YCbCr 401 410 411 420 421 422 423 424 425Composite PAL ScartRGB Video 575P 426 427 428 430 431 432 433 434 435RGB Video RGB Video 480P443 Hdcp 720P-50 440 Hdcp 480PHdcp 575P Hdcp 720P-60RGB-Video 1080P-60 451 452 453 454 455 600 620RGB-Video 1080-25psf RGB-Video 1080-24psfAuto Calibration Auto PC AdjustmentDe-interlacer setting 680 681 690 700 701 711 713 715Color shading correction 720 22pull down setting721 23pull down setting 975 Ghost DriftChassis Description Chassis block diagramsChassis over view IC3012 Video signal processing stageK20G K20F Audio signal processing stageK00D K20HFN901 FN905 FAN control stageFAN location FN904 FN903Motor control stage Lamp control stageGreen Serial bus control stageYellow RedIC8702 3V2 Power supply lines & power failure detectionLED indication and projector condition Indicators Projector ConditionError information table Power failure detection systemPin Signal Name Connection Error Information Failure area Power failure detection treeK10R Diagnosis procedure Diagnosis of power failure with RS-232C portError Error Code Error Information Error history logSystem Control & I/O Port Table IC801, HD6417727F Control Port FunctionsWE0 Pwreset Netsw Parallel I/O Expander IC4801, TIC81592GP M62393 IIC Bus D/A ConverterWaveforms Cleaning with air spray CleaningAD8183ARU/AD8185ARU IC Block DiagramsCXD3531R Digital Signal Driver & Timing Generator , IC401 IC Block Diagrams IC Block Diagrams IC Block Diagrams IC Block Diagrams Divide TDA1517ATW Audio Output, IC1681, IC1682 Read Description in the parts list Electrical Parts ListFilter Board F601 OUT of Circuit BoardAssemblied Boards TERMINAL1 Board 147 TR 2SA1037AK-S-T146 405 0417 TR 2SA1037K IC IDT70V24S15PFG 7316 C2591 C365 C568 NP-ELECT Carbon R2213 R329 R4477 R5212 R6791 Network 0X4 1/32W Network 10KX4 1/32W FILTER,LP 34MHZ Zener Diode 02DZ6.2YTPH3 IC AD8185ARUZ-REEL7 C2007 R1111 Zener Diode UDZS-TE-1712B ZD UDZS-TE-176.2B Resister Diode RF101L2S POS-SOLID Filter Board Mechanical Parts List 23-b 100 Optical Parts List65 Red 71R/L 71-a R 71-b G 71-c B 71-e G = no use 103 Key to better communications Schematic Diagrams Printed Wiring Board Drawings Diagrams & DrawingsIC IC Pin description of diode, transistor and ICDiagrams & Drawings LC-X71, LC-X71L

LC-X71 LC-X71L specifications

The Eiki LC-X71 and LC-X71L are advanced multimedia projectors designed for a range of applications, from education to corporate environments. Known for their outstanding image quality and impressive clarity, these projectors combine technological innovation with user-friendly features, making them ideal for presentations, lectures, and various visual displays.

One of the defining characteristics of the LC-X71 series is its high brightness output. With 6000 ANSI lumens, these projectors ensure clear and vibrant images, even in well-lit rooms. This level of brightness is complemented by a native XGA resolution (1024 x 768), providing sharp details and vivid colors. The LC-X71L model features a slightly enhanced brightness, making it suitable for larger venues or where ambient light cannot be controlled.

The Eiki LC-X71 and LC-X71L utilize a DLP (Digital Light Processing) technology that enhances color accuracy and contrast. This technology minimizes the visibility of pixels, ensuring smooth images that remain sharp at various viewing distances. Moreover, the projectors incorporate a high contrast ratio, which contributes to deep blacks and bright whites, making them perfect for presentations with complex graphics.

Another noteworthy feature is the flexible connectivity options. The LC-X71 series offers multiple input terminals, including HDMI, VGA, and USB, allowing for seamless integration with various devices, from laptops to video players. This versatility enables users to easily switch between different content sources. Additionally, the projectors support wireless presentation capability, enhancing user convenience and reducing the clutter of cables.

User convenience doesn’t stop at connectivity. The LC-X71 and LC-X71L are designed for easy installation and maintenance. Their lightweight design and compact dimensions facilitate portability, making them easy to move between locations. They also feature a filter-free design, reducing maintenance efforts and ensuring long-term reliability.

In terms of energy efficiency, both models are equipped with Eco Mode, which extends lamp life and reduces power consumption. The lamp life can reach up to 4000 hours, depending on usage, making it a cost-effective solution for prolonged use.

In conclusion, the Eiki LC-X71 and LC-X71L projectors deliver exceptional performance, combining high brightness, versatile connectivity, and user-friendly features. Their technological advancements cater to various needs, ensuring that they stand out in the competitive market of multimedia projectors.