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EK-620U/EK-621W

Preface

This manual is applied to EK-620U/EK-621W projection system.The manual gives you a

brief description of basic technical information to help in service and maintain the product.
Your customers will appreciate the quick response time when you immediately identify

problems that occur with our products.We expect your customers will appreciate the

service that you offer them.
This manual is for technicians and people who have an electronic background.Please send

the product back to the distributor for repairing and do not attempt to do anything that is

complex or not mentioned in the troubleshooting.

Note: The information found in this manual is subject to change without prior notice.Any

subsequent changes made to the data herein will be incorporated in future edition.

EK-620U/EK-621W Service Manual

Rev

1.0

Содержание EK-620U

Страница 2: ...ers will appreciate the service that you offer them This manual is for technicians and people who have an electronic background Please send the product back to the distributor for repairing and do not...

Страница 3: ...3 Disassemble Main Board Module 2 4 Disassemble Front Cover 2 9 Disassemble Left Cover 2 10 Disassemble IO Cover 2 11 Disassemble Engine Module 2 13 Disassemble LVPS 2 18 Disassemble Bottom Cover Mod...

Страница 4: ...ection Test Equipment Needed 4 1 Service Mode 4 1 Factory Reset 4 2 Calibration 4 3 Re write SN 4 7 Adjustment 4 8 Chapter 5 Firmware Upgrade System Firmware Upgrade 5 1 Recovery Mode 5 7 Appendix A E...

Страница 5: ...al Mode 6500 lm Eco Mode 3250 lm 6 Throw Ratio AH A22010A A15 AH A22020 A01 AH A22050 A06 AH A21010 A03 AH A23010 A13 0 75 0 95 0 95 1 22 1 22 1 53 1 52 2 92 2 90 5 50 0 79 1 00 1 00 1 28 1 28 1 61 1...

Страница 6: ...phone jack Remote In 1 x USB type A for WiFi dongle purpose 1 x Mini USB for LAN FW upgrade only Service 1 x RJ45 LAN 13 Native Resolution 1920 x 1200 1280 x 800 14 Filter Wheel 4 Segment RYGB Filter...

Страница 7: ...0 x 480 85 43 27 SVGA 800 x 600 56 35 2 SVGA 800 x 600 60 37 88 SVGA 800 x 600 72 48 08 SVGA 800 x 600 75 46 88 SVGA 800 x 600 85 53 67 XGA 1024 X 768 60 48 36 XGA 1024 X 768 70 56 48 XGA 1024 x 768 7...

Страница 8: ...0 60 65 3 WUXGA 1920 x 1080 RB 60 66 6 WUXGA 1920 x 1080 EIA 60 67 5 Modes Resolution V Frequency Hz H Frequency KHz SXGA 1280 x 1024 85 91 15 Quad VGA 1280 x 960 60 60 Quad VGA 1280 x 960 75 75 SXGA...

Страница 9: ...1024 x768 60 48 36 XGA 1024 x768 70 56 48 XGA 1024 x768 75 60 02 XGA 1024 x768 85 68 67 SXGA 1152 x 864 70 63 8 SXGA 1152 x 864 75 67 5 SXGA 1152 x 864 85 77 1 Modes Resolution V Frequency Hz H Freque...

Страница 10: ...80 EIA 60 67 5 WUXGA 1920x1200 RB 59 95 74 04 Modes Resolution V Frequency Hz H Frequency KHz SXGA 1280 x 1024 60 63 98 SXGA 1280 x 1024 72 77 9 SXGA 1280 x 1024 75 79 98 SXGA 1280 x 1024 85 91 15 Qua...

Страница 11: ...nual Modes Resolution V Frequency Hz H Frequency KHz 480i 720 x 480 59 94 29 97 27 480p 720 x 480 59 94 31 47 576i 720 x 576 50 25 27 576p 720 x 576 50 31 25 720p 1280 x 720 60 45 720p 1280 x 720 50 3...

Страница 12: ...Bit 105 2 Screw Bit 107 3 Screw Bit 107 4 Hex Sleeves 5 mm 5 Tweezers 6 Knife 7 Projector Before you start This process is protective level II Operators should wear electrostatic chains When disassem...

Страница 13: ...as blue arrow Projector lens 2 Rotate the lens carefully as red arrow then remove it out carefully Note Please hold lens module in the right way Be careful not to dirty the glass of the lens module Be...

Страница 14: ...EK 620U EK 621W 2 2 3 Disassemble Top Cover 1 Loosen 4 black screws as red circle 2 Loosen 8 screws as green circle 3 Take the top cover module out...

Страница 15: ...2 4 Disassemble Main Board Module 1 Take out the top IR board from the hook 2 Loosen 18 screws to disassemble top shielding as green circle 3 Loosen 2 screws to disassemble LED board as red circle LE...

Страница 16: ...EK 620U EK 621W 2 4 Loosen 3 screws and 10 hexes as red circle 5 Loosen 9 screws to disassemble main board as green circle 6 Loosen 3 screws to disassemble IO board as red circle...

Страница 17: ...on Connector Board The key feature Figure J5 KEYPAD CONN White connector 30 pin J35 J34 FAN10 FAN4 Composed of black blue gray red wires white connector 4pin J33 J32 FAN9 FAN8 Composed of black green...

Страница 18: ...posed of two white wires a white connector 2 pin J14 LIGHT SENSOR 2 Composed of white yellow pink brown black and red wires a white connector 6 pin J48 LD DRIVER Composed of a white connector and a bl...

Страница 19: ...connector 3 pin J9 LIGHT SENSOR Composed of black yellow and red wires a white connector 6 pin J1 LVPS Composed of a white connector and a black wire tube 22 pin J24 P W SENSOR Composed of white blac...

Страница 20: ...EK 620U EK 621W 2 2 5 Disassemble Front Cover 1 Loosen 9 screws to disassemble front cover as red circle 2 Loosen 6 screws to disassemble bracket as green circle...

Страница 21: ...K 621W 2 10 3 Take out the front IR as red rectangle 4 Loosen 5 screws to disassemble front shielding as green circle 2 6 Disassemble Left Cover 1 Take out the interlock switch as red rectangle Front...

Страница 22: ...EK 620U EK 621W 2 11 Left Cover 2 Loosen 5 screws to disassemble left cover as green circle 2 7 Disassemble IO Cover 1 Loosen 3 screws as red circle...

Страница 23: ...EK 620U EK 621W 2 12 2 Loosen 2 screws as green circle 3 Loosen 6 screws to separate IO cover and keypad board as red circle Rubber IO Cover KeyPad...

Страница 24: ...EK 620U EK 621W 2 13 2 8 Disassemble Engine Module 1 Loosen 4 screws to disassemble fan5 fan7 as green circle 2 Loosen 4 screws to disassemble fan6 as red circle Fan 5 Fan 7 Fan5 Fan7 Fan6...

Страница 25: ...EK 620U EK 621W 2 14 3 Unplug 6 connectors as green circle 4 Loosen 10 screws to disassemble the engine module as green circle...

Страница 26: ...621W 2 15 5 Loosen 1 screws to disassemble the thermal switch as red circle 6 Remove the glue then loosen 5 screws to separate the filter cover and combiner module as green circle Thermal Switch Combi...

Страница 27: ...EK 620U EK 621W 2 16 7 Loosen 3 screws to disassemble filter wheel module as red circle 8 Loosen 3 screws to disassemble filter bottom cover as green circle Filter Module...

Страница 28: ...U EK 621W 2 17 9 Loosen 4 screws to disassemble DMD heatsink as red circle 10 Loosen 6 screws to disassemble DMD board as green circle 11 Loosen 4 screws to disassemble DMD board as red circle DMD Boa...

Страница 29: ...K 621W 2 18 12 Loosen 2 screws to disassemble bracket as green circle 2 9 Disassemble LVPS 1 Unplug 4 connectors as green rectangle 2 Loosen 6 screws to disassemble LD driver board as red circle Engin...

Страница 30: ...EK 621W 2 19 3 Loosen 5 screws to separate LD driver board and heatsink as yellow circle 4 Loosen 5 screws to disassemble shielding and unplug all connectors as red circle LD Driver Module Interlock...

Страница 31: ...EK 620U EK 621W 2 20 5 Rotate the cap take out the fuse as green square and loosen 5 screws to disassemble AC as red circle 6 Loosen 7 screws to disassemble LVPS as green circle LVPS AC Fuse...

Страница 32: ...1W 2 21 2 10 Disassemble Bottom Cover Module 1 Loosen 4 screws to disassemble right cover as red circle 2 Loosen 12 screws to disassemble fan3 fan2 fan1 as green circle Right Cover Fan1 Fan2 Fan3 Fan...

Страница 33: ...Loosen 8 screws to disassemble fan4 fan10 as red circle 4 Loosen 3 screws to disassemble 3 foot as green circle 5 Loosen 23 screws to disassemble the bottom cover as yellow circle Fan 4 Fan 10 Fan4 F...

Страница 34: ...e Flashing Power on Warm up Flashing Power on Laser diode on Steady Steady Steady Power off Cooling down Flashing AV mute is off Image is displayed Steady Steady Steady AV mute is on Image is black St...

Страница 35: ...rly Dose the power LED light Dose the laser ignite Is image OK Yes No Yes No Fault Found End Yes No power troubleshooting No No Turn on the projector Power troubleshooting Image troubleshooting Is rem...

Страница 36: ...ecurely at unit and power source Is the power source providing AC voltage Supply AC voltage 100V 240V Change power supply Continue function test and refer to other troubleshooting once the power LED l...

Страница 37: ...mal switch Status LED flashing red Measure voltage J29 J38 Pin1 4 5 12V 0 3V Replace according fan or blowerWhose pin2 is 3 3V before status LED lights Continue function test and refer to other troubl...

Страница 38: ...C Video image on the screen Ensure signal cable and signal source work fine Is the problem solved Change M B P 2 No No Yes Yes Replace DMD board No No Yes Yes Dose the HDMI image show on the screen Ye...

Страница 39: ...signal cable and signal source work fine P W and F W wheel index adjustment Is color OK Change M B Change F W module Yes No Yes No No Yes End Yes Is color OK Chang combiner module No Have line bar Yes...

Страница 40: ...shooting Start Is the remote controller function ok No fault found End Change Battery Change Remote control Is the problem solved Is the problem solved No No Yes Yes Replace IR sensor Board Is the pro...

Страница 41: ...Orange and Green LED will be lit Are the Network settings of the unit right Is the Network function OK Yes No Yes No Fault Found End Yes Is the Internet source of PC is OK Yes Change LAN Cable Try to...

Страница 42: ...480P 720P 1080P Quantum Data 802B or CHROMA 2327 Color Video Signal Pattern Generator 4 2 Service Mode 1 Enter the service mode Turn on the projector Press Menu button on Remote Controller or Keypad c...

Страница 43: ...ue It will not reset network 2 Filter Wheel Index Adjust the R G B value to get perfect image when image loss some kinds of color 3 Phosphor Wheel Index Adjust the R G B value to get perfect image whe...

Страница 44: ...thly Criteria If the Lens Shift Module is not moving smoothly or sound noising please replace the light engine module Procedure Place the projector on a clean horizontal surface On the Remote press Me...

Страница 45: ...ease execute ADC calibration Procedure Test equipment video generator Test signal 1920x1200 60Hz Test pattern Grays 16 Input the signal from VGA port Get into service mode Select ADC Calibration Press...

Страница 46: ...Adjust the index upwards until blue does not appear smooth record the a index value Adjust the index downwards until blue does not appear smooth record the b index value Set the index value to a b 2 C...

Страница 47: ...b 2 Criteria Blue Red Color in 64 Gray RGBW appear sharp and clear no noise is visible on the screen 3 Get into color wheel speed 3X to repeat 1 and 2 steps Procedure Press Menu Select PICTURE Select...

Страница 48: ...ble Download the SN rewrite for B35LH tool Open the projector Open the tool then click SN Tool Choose the Com port which you are using and click Load define Then key in the Serial Number for example E...

Страница 49: ...to Full Screen pattern adjust the lens room widest adjust the focus fuzzy then measure the minmum imaging distance confirm whether the distance value in the lens specifications of 3cm If not adjust th...

Страница 50: ...eat step till positions 1 2 and 3 are in focus at the same time 2 ROD Adjustment Environment Adjustment The distance between the engine and the screen is 2 00 M This process should be done in the dark...

Страница 51: ...apter 5 Firmware Upgrade Section 1 Scalar MCU Formatter LAN FW upgrade 5 1 1 Equipment Needed Software EIKI B35LD Upgrade Firmware Wizard zip Hardware Projector Power Cord RJ45 cable CAT 5e PC or Lapt...

Страница 52: ...are Upgrade Procedure 1 Windows Setting Close Windows firewall Set HDD sleep timer larger than two hours Run as administrator in case of Windows 7 system 2 Network Setting Double click the Local area...

Страница 53: ...click Properties Modify the IP address to 192 168 0 101 and modify Subnet mask to 255 255 255 0 Note The HOST ID 192 168 0 XXX of PC IP address must be different from the projector IP address written...

Страница 54: ...W 5 3 Download the latest firmware program file from the website Unzip the file to the desktop and open the folder created 4 Execute the Upgrade_Wizard exe 5 Select please check firewall has been cloe...

Страница 55: ...EK 620U EK 621W 5 6 Connect projector to computer by RJ 45 turn on projector Click next 7 Prepare to update projector Cleck next Cleck next...

Страница 56: ...on the computer Do not turn off the projector or computer Do not connect or disconnect any cables or power cords 9 At last Update successful shows on the screen click exit then turn off the projector...

Страница 57: ...ode Pressing Up key then pressing Power key When you see the RJ45 s LED is flashing twice Connect projector with Mini USB cable to PC 2 Please download the latest firmware program file from website Un...

Страница 58: ...EK 621W 5 3 Choose FlashUpgrader exe Program Double click FlashUpgrader exe to execute FlashUpgrader setup 4 Choose USB 2 0 then click Flash button to start FW upgrade 5 Then will show upgrade progre...

Страница 59: ...ed PW808 firmware upgrade procedure is finished Note 1 The laser will not operate 2 After upgrade finished remove the power code 3 32 bit system need to install mini USB driver manually Right click co...

Страница 60: ...rogress directly 1 Execute the Upgrade_Wizard exe 2 Click Run as admin and Close firewall 3 Select Restore 4 Click next 5 Connect the projector to AC and power it on 6 When the source message is displ...

Страница 61: ...This chapter is only designed to show the exploded image of the projector For updated part numbers please refer to RSPL report Here we take EK 620U for example Appendix A Exploded Image EK 620U EK 621...

Страница 62: ...See The Page III Rear Cover 7 See The Page V Assy Engine Module 8 75 792P1G001 POWER SUPPLY AD 1201W TERMINAL 380 115 65mm DL T SW V 9 ASSY MB BOTTOM SHIELDING 10 See The Page IV Main Board 11 MB TOP...

Страница 63: ...80 74K03G001 PCBA KEYPAD BD FOR B35LH V 2 52 74K03G001 KEYPAD RUBBER B35LH V 3 70 74K30GR01 ASSY IO COVER FOR 74K V 4 80 74K07G001 PCBA LED BD FOR B35LH V 5 LABEL IO EIKI B35LH 6 SCREW PAN MECH III E...

Страница 64: ...Board Item P N Description Parts Supply 1 HEX SPACER M3 3 0 W5 L20 0 2 80 74K01G012 PCBA MAIN BOARD ASSY FOR B35LD EK 620U WUXGA PRO JECTOR V 3 80 74K06G011 PCBA IO BD ASSY FOR B35LD PROJECTOR V 4 SC...

Страница 65: ...0 67 WUXGA 2xLVDS TYPE A DC3 7 TI V 3 80 79202G001 PCBA WUXGA DMD BD FOR A35LH PROJECT V 4 70 73G23GR01 ASSY FILTER WHEEL MODULE WITHOUT RED LD FOR 73G SERVICE V 5 70 74L60GR01 ASSY COMBINER MODULE F...

Страница 66: ..._1 Shunt Circuit Warning LD XX_1 Shunt Circuit Warning LD XX LD B1 B6 LD XX_2 Shunt Circuit Warning LD XX_2 Shunt Circuit Warning LD XX LD B1 B6 LD Over Temperature Shutdown LD Over Temperature Shutdo...

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