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Related Manuals for Eiki EK-121W
Summary of Contents for Eiki EK-121W
- Page 1 Multimedia projector Service manual Model： EK-121W EK-120U...
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Page 2: Table Of Contents
Content Content ................2 Safety instruction ............3 Circuit protection............6 Thermal switch ............6 Indicator status ............7 Key lock, PIN code lock reset ........8 Standby mode instruction ..........9 Maintenance and cleaning .......... 10 Filter counter reset............11 How to check the lamp usage time.......12 Lamp replacement............13 Replace the Lamp............13... -
Page 3: Safety Instruction
Safety instruction Technicians need to read and follow the "safety precautions" and "important safety tips" strictly in the service manual in the maintenance process. Caution 维修技术人员需阅读并遵守本维修手册中的 “安全预防措施” 和 “重要安全提示” The service manual is only for experienced technicians, rather than the general public. 警告... - Page 4 Safety instruction FCC Caution Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
- Page 5 Safety instruction Safety precautions 1.1 General policy: – DO NOT attempt to make a circuit modification for the sake of safety for long time. – Unplug the power cord from the power outlet before removing the projector. – Please use the random supply line correctly, and make sure that the line must be earthed. –...
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Page 6: Circuit Protection
Circuit protection The projector has the following security operation circuit protection functions. If there is any abnormal in the inside of the projector, the following protection circuit action will make your projector shut down automatically . Thermal switch - The thermal switch inside the projector is used to detect abnormal temperature inside the projector. -
Page 7: Indicator Status
Circuit protection Indicator status When the temperature inside the projector is too high or the cooling fan stops rototating or loss of power , the projector will shut down automatically. LED indicator POWER indicator - the power indicator turns steady red when the projector is in standby mode, - the power indicator turns steady green during the working time. -
Page 8: Key Lock, Pin Code Lock Reset
Key lock，PIN code lock reset This projector provides Key lock,PIN code lock and LOGO PIN code lock ensure your projector’s operation safety. Only when users enter the correct password can you open your projector when you have set up the three security features.You won't start the projector without password. -
Page 9: Standby Mode Instruction
х: No Control ∆: Power On command Only √: All commands are active *х: Power On command is active with “Wake On LAN” software. • The “Wake On LAN” software and its manual can be downloaded from EIKI global website https://global.eiki.com/... -
Page 10: Maintenance And Cleaning
Maintainance and cleaning Before replacing components Please make sure to cut off the power and unplug the power cord from the power outlet when you make maintenance or replacement of components about your projector. Maintenance Clean the cabinet of your projector Unplug the AC power cord before cleaning. -
Page 11: Filter Counter Reset
Filter counter reset Clean the filter Clean the filter under the following circumstams. ● Clean the filter immediately whenever the replacement information displays or the Filter Warning indicator icon is Filter warning ● Clean the filter immediately when the warning indicator is on as the internal high temperature of the projector due to the clogged filter thus making the projector working failure. -
Page 12: How To Check The Lamp Usage Time
How to check the lamp usage time It's time to replace the lamp when the lamp usage time (Corresponding value) come to 10,000 hours. Use the following formula to calculate the lamp usage time . Lamp usage time(Corresponding value)=Teco +Tnormal x 2 Tnormal : Usage time in normal mode Teco... -
Page 13: Lamp Replacement
Lamp replacement Replace the lamp When the projection lamp of the projector reaches its Lamp replacement icon end of life, the Lamp replacement icon appears on the screen. Replace the lamp with a new one of the same Lamp replacement type promptly. -
Page 14: Lamp Counter Reset
Lamp replacement Lamp counter reset Make sure to reset the lamp counter when replacing the Expand lamp. Then the WARNING indicator goes out and the Lamp counter lamp replacement icon will disappears. Lamp counter Lamp counter reset 1. Press MENU button on the remote controller or on the top control panel to display the OSD menu. -
Page 15: Mechanical Disassembly
Mechanical disassembly Remove the mechanical groups according to the following procedure. Screw Description The following steps are the basic processes and some unnecessary (Type D x L) mm steps may be ignored. Tapping screw-T Mechanical screw-M Note: Please return parts and screws where it belongs, as it may influence the projector's performance and security. - Page 16 Mechanical disassembly 1. Filter disassembly : 1. Remove and take out the dust filter and the dust filter cover. Dust filter Dust filter Cover PN:63340044 PN:63220152 2. Top case disassembly : 1. Remove 10 screws A (T3X8), then take out the Top Case. 2.
- Page 17 Mechanical disassembly 3.Terminal sheet / Main board components disassembly 1. Remove 6 screws A (M3X6), 3 screws B (T3X8) and 2 screws C (M3X8). 2. Then remove the terminal sheet metal and I/O case. terminal sheet metal PCBA-MB_EK121W PN:63730171 I/O case PCBA-MB_EK120U PN:63220153 PN:63730172...
- Page 18 Mechanical disassembly 5. Power board component disassembly : 1. Remove 8 screws A (T3X8), 2 screws B (T3X10), then take out the power board component. Light shielding sponge Power Supply(Power+Ballast) PN:63730173 Power box Power box sheet metal Power board disassembly 6.
- Page 19 F3 WUXGA PN:63260066 Fan-Panel F4 PN:63260064 Part Name Spec Driver Fan-Panel 63260058 12V0.21A F5 PN:63260064 63260065 Fan-Lamp 12V0.14A-L 63260036 Outlet Fan EK121W 12V0.21A Outlet Fan EK120U 63260066 12V0.15A F1 PN:63260058 63260064 Fan-Panel 12V0.15A-R 63260064 Fan-Panel 12V0.15A-R Fan-Lamp F2 PN:63260065 EK-121W: EK-120U: -19-...
- Page 20 Mechanical disassembly 8.BTM-case disassembly : 1. Remove the shield metal plate, adjustable leg and adjustable leg button. BTM case shield metal plate Speaker Hanging nut fixed metal plate PN:63680007 BTM-Case PN:63220151 Adjustable leg spring Adjustable leg support core Adjustable leg button Adjustable leg Adjustable leg rubber -20-...
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Page 21: Adjustment
Adjustment Adjustment after replacement parts ● : Adjustment : Check Remove / Replace parts Polarizing LCD/ Condenser POWER MAIN Prism lens(OUT) board board Optical Optical center adjustment ● adjustment Fan voltage adjustment ● Check and set the screen type ●... -
Page 22: Service Mode
Service Mode Service adjustment menu operation 1) Enter Service Mode Press and hold Menu button and button for more than 3 seconds. Then Service Mode Menu will display to enter to Service Mode showen as follows. Note: Be careful not to change the data unintentionally. It may adversely affect product quality. -
Page 23: Error History Log
Service Mode 4)Error History Log Enter Service Mode and choose Group 220. Look at the right hand side item “Data Code”. Press MENU button to select the “No.” item. Press the ▲ button to change the number. No. 0: the last error No. -
Page 24: Electrical Adjustment
Electric adjustment Note: The circuit has been accurately adjusted at the factory. DO NOT attempt to adjust the following circuit as it may cause serious damage to property and product safety unless you have to adjust it during maintenance. Before adjustment, please turn on the projector to preheat at least 10 minutes. Caution: Take the UV radiation measures to protect the eyes and skin during maintenance. - Page 25 Electric adjustment 2. Fan Voltage Adjustment Equipment digital voltmeter 1. Enter the service mode. 2. Select item 250 and adjust the item according to the following, through changing the item numerical test. Group-Item Test Point Adjustment Value 250-0 FAN-A1(F1) 4.0+0.1 Vdc 250-1 FAN-A1(F1) 12.5+0.1 Vdc...
- Page 26 Electric adjustment 5. Color correction adjustment After replacing panel, it is necessary to use 50% or 30% gray scale images to confirm the problem of uneven color. If partial color bias occurs, please set the corresponding service mode to 0. The operation is as follows: Input signal 50% gray field or 30% gray field 1.
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Page 27: Trouble Shooting
Trouble shooting Light indicator and projector state Light indicator indicates the projector state. If you have met kinds of unexpected problems when you operate the projector, please do as the following table says to check the operation of the projector. Check light indicator to learn state of your projector to ensure your projector in the best state. - Page 28 Trouble shooting No power We can indentify the abnormal area through light indicator status. Connect the AC power cord, and press button to check light indicator. - All light indicators will be Off indicates the main board abnormal. Please check the main board circuit and component.
- Page 29 Trouble shooting Power on abnormal Follow the steps below for check: The POWER Check the main board Power abnormal indicator turns Off 16V_MCU(P.33,P.36) and Check Power Supply. (with AC power the power in Standby state. supply). Check the thermal switch. Check IC1007(P.33,P.36).
- Page 30 Trouble shooting Image display abnormal Check the image as the following steps. Check signal processing and LCD drive. Singal input ; but no Check the S16V(P.34,P.37) power supply and peripheral device loop. image display Change the new Main Board to check if the projector work normally. VGA input ;...
- Page 31 Trouble shooting No sound Follow the steps below for check: Check whether the pins 1. Check whether the cable of speaker is inserted properly and whether 63/57 and 56/50 of IC5 the cable of speaker is broken? (P.35,P.38) have audio 2.
- Page 32 Trouble shooting Before calling your dealer or service center for assistance, check the items below once again. - Make sure you have properly connected the projector to peripheral equipment. - Make sure all equipment is connected to the AC outlet and the power is turned on. - If the projector does not project an image when it is connected to a PC, restart the PC.
- Page 33 Trouble shooting No Sound - Check the audio cable connection from audio input source. - Adjust the audio source. - Press the VOLUME + button. - Press the Mute button. - When the AUDIO OUT is plugged in, the projector’s built-in speaker is not available.
- Page 34 Trouble shooting WUXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG Standby 11.4V（±5%) 16V_MCU Main board（SD PIN1） 16V_MCU SD PIN1,6,7,8 Power on 16.8V（±5%） 16V_MCU Main board P.28 （SD PIN1,6,7,8） PIN3 3.3V（±5%） P.28 3.3_MCU PIN3 IC1007 3.3V（±5%） P.28 IC1007 -34-...
- Page 35 Trouble shooting WUXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG IC4002 PIN3 5.5V（±5%） P.29 IC4002 S16V Main board（PIN1） ECO stand by 11.4V （±5%） ， Power on 16.8V （±5%） P.29 S16V IC6002 PIN5 5V（±5%） P.29 -35-...
- Page 36 Trouble shooting WUXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG PIN44、63、57、56、 P.30 Q5004 P.30 Q5004 12.4V p.30 R3297 R3297 P.30 -36-...
- Page 37 Trouble shooting WXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG Standby 11.4V（±5%) 16V_MCU Main board（SD PIN1） 16V_MCU SD PIN1,6,7,8 Power on 16.8V（±5%） 16V_MCU Main board P.28 （SD PIN1,6,7,8） PIN3 3.3V（±5%） P.28 3.3_MCU PIN3 IC1007 3.3V（±5%） P.28 IC1007 -37-...
- Page 38 Trouble shooting WXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG IC4002 PIN3 5.5V（±5%） P.29 IC4002 S16V Main board（PIN1） ECO stand by 11.4V （±5%） ， Power on 16.8V （±5%） P.29 S16V IC6002 PIN5 5V（±5%） P.29 -38-...
- Page 39 Trouble shooting WXGA: item Page IC Ioction IC model IC PIN# What volts are norml/NG PIN44、63、57、56、 P.30 Q5004 P.30 Q5004 12.4V p.30 R165 R165 P.30 -39-...
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Page 40: Appendix-Specification
Appendix-Specification Dimensions 345mm(W) x 99mm(H)x 261mm(D) Mechanical Net Weight 3.26Kg properties Adjustable foot 10˚ LCD system 0.64 TFT, active matrix LCD resolution LCD resolution WXGA: 1280x800 / WUXGA: 1920x1200 Color standard PAL、SECAM、NTSC、NTSC4.43、PAL-M、PAL-N、PAL-60 Compatible HDTV signal 480i、480p、576i、576p、720p、1080i、1080P signals Scanning frequency Horizontal frequency: 15 KHz–100 KHz，Vertical frequency: 48-85Hz Image size (diagonal lines) 30"-300", adjustable WXGA: 0.8m-8.4m(W) 1.3m-13.9m(T) -
Page 41: Appendix-Serial Control
Appendix-Serial control Serial port The <Serial Input> terminal of the projector is in accordance with RS-232C, so the projector can be connected to the computer and controlled by the computer. Connection Projector port D-Sub 9 pin (Male) D-Sub 9 pin (Female) Communication cable (Cross type) The pin layout and signal Pin number... - Page 42 Appendix- Serial control RS232 control mode Serial connection 1.1 Port setting Projector Setpoint Communication method Asynchronous communication Communication rate 19200 Length 8-bit Parity check Stop position 1-bit Flow control 1.2 Connection mode Can only use RS232 serial cross connect PC and projector. VGA terminal Projector terminal CD 1...
- Page 43 Appendix- Serial control 2. Basic commands Command is case sensitive, and enter Each command ends with [CR] (enter) . Command Option Command Option POWER ON Video POWER OFF(Immediatly) NETWORK POWER OFF MEMROY VIEWER HDMI1 USB DISPLAY HDMI2 2.1 POWER ON command Command “C00”[CR] Power ON action.
- Page 44 Appendix- Serial control 2.4 HDMI 1 command Command “C36”[CR] Details Select HDMI Input. Receive Successfully [ACK]［CR］ Return Value Receive Unsuccessfully “ ？ ” [CR] 2.5 VGA command Command “C05”[CR] Details Select VGAIN Input Receive Successfully [ACK]［CR］ Return Value Receive Unsuccessfully “ ？ ” [CR] 2.6 NETWORK command Command “C15”[CR]...
- Page 45 Appendix- Serial control 2.8 USB Display command Command “C17”[CR] Details Select USB Display Input Receive Successfully [ACK]［CR］ Return Value Receive Unsuccessfully “ ？ ” [CR] 2.9 Video command Command “C07”[CR] Details Select Video Input Receive Successfully [ACK]［CR］ Return Value Receive Unsuccessfully “ ？ ” [CR] 2.10 HDMI 2 command Command “C37”[CR]...
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Page 46: Appendix-Parts Location & Mechanical Components List Diagram
Appendix-Parts location & mechanical components list diagram Parts location & Mechanical components list diagram Important safety instruction Components identified by international symbol hold the special security features. Please use the specified model for replacement . Please make sure the parts list and the service code in structural parts list diagram before ordering repair parts. -46-... - Page 47 Appendix- Parts location diagram Top cover component PCBA-Keypad PN:63730174 ② ① Top Case PN:63220150 INDEX PART NAME PART CODE QTY Top Case 63220150 PCBA-Keypad 63730174 Main board component I/O case ② PCBA-MB_EK121W PN:63730171 PCBA-MB_EK120U PN:63730172 ① PCBA_IR-B PN:63730176 ③ INDEX PART NAME PART CODE QTY PCBA-MB_EK121W...
- Page 48 Appendix- Parts location diagram Optical engine component ① Lamp Assy W/I Packing Optical Engine_EK121W ③ PN:22040012 PN:63010076 Optical Engine_EK120U PN:63010077 IRIS Assembly ④ PN:63370004 ② BTM Case PN:63220151 ⑤ INDEX PART NAME PART CODE QTY PCBA-RC Optical Engine_EK121W 63010076 PN:63730175 Optical Engine_EK102U 63010077 BTM Case...
- Page 49 Appendix- Parts location diagram LCD lamp duct component Fan-Lamp PN:63260065 ② Thermal Switch ① PN:63630005 INDEX PART NAME PART CODE QTY Thermal Switch 63630005 Fan-Lamp 63260065 Fan component Fan-Panel ① PN:63260064 ③ PN:63260058 ② Outlet Fan EK121W PN:63260036 Outlet Fan EK120U PN:63260066 INDEX PART NAME...
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Page 50: Appendix-Accessories
Appendix- Parts location diagram Bottom cover component Speaker PN:63680007 ① ② ③ Dust filter Cover Dust filter PN:63220152 PN:63340044 INDEX PART NAME PART CODE QTY Speaker 63680007 Dust filter 63340044 Dust filter Cover 63220152 Accessories Make sure your projector is equipped with the following assessories. AC Power cord Remote control with batteries VGA cable... -
Page 51: Appendix-Pcb Diagram
Appendix-PCB diagram Important safety instruction Components identified by International symbol hold the special security features. Please use the specified model for replacement . Low voltage and high voltage warning The power supply circuit includes a circuit unit to seperate the power supply from ground. ●... - Page 52 Appendix-PCB diagram Main board PCB (Bottom)(WUXGA) Main board PCB (Top)(WUXGA) Main board PCB (Bottom)(WXGA) Main board PCB (Top)(WXGA) Power board（Top） Power board （Bottom） -52-...
- Page 53 Appendix-PCB diagram Front remote control（Top） Front remote control（Bottom） Keypad（Top） Keypad（Bottom） Rear remote control（Top） Rear remote control（Bottom） -53-...
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Page 54: Appendix-Schematic Diagram
Appendix-Schematic diagram WUXGA: SOLO高配框图 16.8V/(eco待机11.4V) POWER BOARD CXA3832 LVDS DDR2 CXD3553 CXA3832 NT5TU64M16HG-BE Flash CXA3832 MX25L25635FMI-10G HDMI1 DAC*5 HDMI2 IT66332 FAN_ERROR RJ45 LAN8720 Iris Key&Led Key/led Temp （LK） （B/C） P_key/led VGA IN PWC878 （IC1001） TPF133 PIC16F18325 （IC1801） VGA OUT USB_B USB_A PC_R/L AUDIO_IN... - Page 55 Appendix-Schematic diagram WXGA: SOLO高配框图 16.8V/(eco待机11.4V) POWER BOARD LVDS DDR2 CXD3551 CXA3828 NT5TU64M16HG-BE Flash MX25L25635FMI-10G HDMI1 DAC*5 HDMI2 IT66332 FAN_ERROR RJ45 LAN8720 Iris Key&Led Key/led Temp （LK） （B/C） P_key/led VGA IN PWC878 （IC1001） TPF133 PIC16F18325 （IC1801） VGA OUT USB_B USB_A PC_R/L AUDIO_IN UART AUDIO_OUT...
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Page 56: Appendix-Chassis Block Diagram
Appendix-Chassis block diagram Video input loop control diagram in Main Board VIDEO VIDEO (J4) EEPROM (IC3501) R/G/B VGA IN PWC878 (J30002-B) (IC1001) TPF133 (IC3503) SN74HC125PW (IC3502) VGA OUT (J30002-A) R/G/B -56-... - Page 57 Appendix- Chassis block diagram MCU loop control diagram in Main Board CXD3551GG (IC11) LVDS/ POWER_CONTROL/ P_ FAIL/PANEL_IIC HDMI HDMI/GAMMA-IIC (J4001-A/J4001- (FAN2/3/5/6/7) B/P2) FAN-ERROR (J1) IRIS (P5031) 3.3_IIC/ADC TEMP (P6) KEY/LED KEY&LED (LK) POWER PWC878 (SD) (IC1001) P_KEY/LED VGA IN PIC16F (J3002-B) (IC1801) UART...
- Page 58 Appendix- Chassis block diagram Ballast control diagram in Power Board -58-...
- Page 59 Appendix- Chassis block diagram Fan control diagram in Main Board 16V_POWER FANA_DA FANA FR9889 (IC3009) FANB_DA FANB FR9889 (IC3250) FANC_DA FANC FR9889 (IC3280) PWC878 (IC1001) FAND_DA FAND FR9889 (IC3001) FANE_DA FANE FR9889 (IC12) FAN_ERROR FAN_ERROR Power Board Fourth pin LAMP_EN -59-...
- Page 60 IRIS Assembly(GP) 63370004 PCBA - RC (GP) 63730175 Optictal Engine - EK-120U (GP) 63010077 Optical Engine/ Optictal Engine - EK-121W (GP) 63010076 Lamp Ass'y Lamp Assy W/I Packing for ELMP-41 22040012 Out-let Fan EK-120U(GP) 12V0.15A 63260066 Out-let Fan EK-121W(GP) 12V0.21A 63260036 Fan-Panel (GP) 12V0.15A-R...