NEC Projector Px750u User Manual
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217 9. Appendix Option lens NP16FLPower focusthrow ratio 0.76:1, F1.85, f=11.6 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 0.78 – 5.17 mNP17ZLPower zoom and focusthrow ratio 1.25-1.79:1, F1.85-2.5, f=18.7-26.5 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 1.32 – 11.74 mNP18ZLPower zoom and focusthrow ratio 1.73-2.27:1, F1.64-1.86, f=25.7-33.7 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 1.83 – 14.88 mNP19ZLPower zoom and focusthrow ratio 2.22-3.67:1, F1.86-2.48, f=32.91-54.23 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 2.35 – 24.13 mNP20ZLPower zoom and focusthrow ratio 3.6-5.4:1, F1.85-2.41, f=52.8-79.1 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 3.80 – 35.36 mNP21ZLPower zoom and focusthrow ratio 5.3-8.3:1, F1.85-2.48, f=78.5-121.9 mmImage Size (Diagonal): 50 – 300 inches / 1.27 – 7.62 mProjection Distance(Min.-Max.): 5.59 – 35.04 m • These specifications and the product’s design are subject to change without notice.
218 9. Appendix 504 (19.8)252 (9.9) 150 (5.9) 150 (5.9) 192 (7.6) 220 (8.7) 117.4 (4.62) 109 (4.3) 150 (5.9) 150 (5.9) 516 (20.3) Cabinet Dimensions Lens center Lens center Holes for ceiling mount Unit: mm (inch)
219 9. Appendix Pin Assignments of D-Sub COMPUTER Input Connector Mini D-Sub 15 Pin Connector Signal Level Video signal : 0.7Vp-p (Analog) Sync signal : TTL level 5 14 23 10 11 12 13 14 15 69 78 Pin No. RGB Signal (Analog) YCbCr Signal 1 Red Cr 2 Green or Sync on GreenY 3 Blue Cb 4 Ground 5 Ground 6 Red GroundCr Ground7Green GroundY Ground8Blue GroundCb Ground9No Connection10Sync Signal Ground11No Connection12Bi-directional DATA (SDA)13Horizontal Sync or Composite Sync 14Vertical Sync15Data Clock
220 9. Appendix Troubleshooting This section helps you resolve problems you may encounter while setting up or using the projector. Indicator Messages POWER Indicator Indicator display Projector status ProcedureOff Power is off.– FlashingBlue (short flashes)Preparing to turn power onWait a while.Blue (long flashes)Off timer (enabled) Program timer (off time enabled) – Orange (short flashes) Projector coolingWait a while. Orange (long flashes)Program timer (on time enabled)Lit BluePower on– Orange Standby mode (NORMAL or NETWORK STANDBY) –Red Standby mode (POWER-SAVING)– STATUS Indicator Indicator display Projector status Procedure OffNo problem, or standby mode (POWER-SAVING or NETWORK STAND- BY) – Flashing Red (cycles of 1) Cover problemThe lamp cover is not properly mounted. Mount it properly. (→ Page 176)Red (cycles of 4) Fan problemThe cooling fan has stopped turning. Contact an NEC projector customer support center for repairs.Flashing OrangeNetwork conflictIt is not possible to connect the projector’s built-in LAN and wireless LAN simultaneously to the same network. To connect the projector’s built-in LAN and wireless LAN simultaneously, connect them to different networks.LitGreen Standby mode (NORMAL) – OrangeButton has been pressed while projector is in key lock mode The projector’s keys are locked. The setting must be canceled to operate the projector. (→ Page 119) Projector’s ID number and remote control’s ID number do not match Check the control IDs. (→ Pages 119 and 120)
221 9. Appendix LAMP 1/LAMP 2 Indicator Indicator display Projector status Procedure OffThe lamp is turned off.– Flashing GreenPreparing to relight lamp after lighting has failed Wait a while. RedLamp replacement grace period The lamp has reached the end of its service life and is now in the replacement grace period (100 hours). Replace the lamp as soon as possible. (→ page 174)Red (cycles of 6) Lamp does not lightThe lamp has not turned on. Wait at least 1 minute, then turn the power back on. If the lamp still does not light, contact an NEC projector customer support center.Lit RedLamp usage time exceededThe lamp has exceeded its usage time. The projector’s power cannot be turned on until the lamp is replaced. (→ page 174) GreenLamp lit– TEMP. Indicator Indicator display Projector status Procedure OffNo problemFlashing RedTemperature problemThe temperature protector has been activated. If the room temperature is high, move the projector to a cool place. If the TEMP. indicator still be flashing when the projector is used at operating temperatures, contact an NEC projector customer support center.OrangeWarming upThe usage environment temperature is lower than the projector’s operating temperature (0°C). In that case, raise the usage environment temperature to a 0°C or higher and turn on the projector. If the projector is turned on at around 0°C, it may take 5 minutes to warm up the projector. During this warm-up period the TEMP. indicator will flash. When the warm-up is completed, the TEMP. indicator will go off. SHUTTER Indicator Indicator display Projector status Procedure Off Light – On Green Light shuttered– If the temperature protector is activated If the projector’s internal temperature rises abnormally, the lamp turns off and the temperature indicator flashes (repeatedly in cycles of 2). It may happen that the projector’s temperature protector is simultaneously activated and the projector’s power turns off. If this happens, do the following: - Unplug the power cord from the power outlet. - If using in a place where the surrounding temperature is high, move the projector to a different, cool place. - If there is dust in the ventilation holes, clean. (→ pages 171 and 173) - Wait as such about 1 hour for the projector’s internal temperature to lower.
222 9. Appendix Common Problems & Solutions (→ “Power/Status/Lamp Indicator” on page 220.) ProblemCheck These Items Does not turn on or shut down• Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control is on� (→ pages 13, 14, 17)• Ensure that the lamp cover is installed correctly. (→ page 176)• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the room where you are presenting is particularly warm, move the projector to a c\ ooler location�• Check to see if you continue to use the projector for another 100 hours after the lamp has reached the end of its life� If so, replace the lamp� After replacing the lamp, reset the lamp hours used� (→ page 129)• The lamp may fail to light. Wait a full minute and then turn on the power again.• Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500 feet/1600 meters or higher� Using the projector at altitudes approximately 5500 feet/1600 meters or higher without setting to [HIGH ALTITUDE] can cause the projector to overheat and the projector could shut down� If this happens, wait a couple minutes and turn on the projector � (→ page 121) If you turn on the projector immediately after the lamp is turned off, the fans run without displaying an image for some time and then the projector will display the image� Wait for a moment� Will turn off• Ensure that the [OFF TIMER], [AUTO POWER OFF] or [PROGRAM TIMER] is off. (→ page 113, 124) No picture • Check if the appropriate input is selected. (→ page 20) If there is still no picture, press the SOURCE button or one of the input buttons again�• Ensure your cables are connected properly.• Use menus to adjust the brightness and contrast. (→ page 103)• Ensure that the lens cover is open. (→ page 16)• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 129)• Enter your registered keyword if the Security function is enabled. (→ page 42)• If the HDMI input or the DisplayPort signal cannot be displayed, try the following.- Reinstall your driver for the graphics card built in your computer, or use the updated driver � For reinstalling or updating your driver, refer to the user guide accompanied with your computer or graphics card, or contact the support center for your computer manufacturer � Install the updated driver or OS on your own responsibility � We are not liable for any trouble and failure caused by this installation\ �• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power to the notebook PC� In most cases the output signal from the notebook PC is not turned on unless connected to the projector before being powered up�* If the screen goes blank while using your remote control, it may be the result of the computer’s screen-saver or power management software�• See also the page 224� Color tone or hue is un - usual• Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page 111)• Adjust [HUE] in [PICTURE]. (→ page 103) Image isn’t square to the screen • Reposition the projector to improve its angle to the screen. (→ page 21)• Use the Keystone correction function to correct the trapezoid distortion. (→ page 26) Picture is blurred • Adjust the focus. (→ page 24)• Reposition the projector to improve its angle to the screen. (→ page 21)• Ensure that the distance between the projector and screen is within the adjustment range of the lens. (→ page 204) • Has the lens been shifted by an amount exceeding the guaranteed range? (→ page 207)• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on. Should this happen, let the projector stand until there is no condensati\ on on the lens� F l i c k e r a p p e a r s o n screen• Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5500 feet/1600 meters or lower � Using the projector at altitudes less than approximately 5500 feet/1600 meters and setting to [HIGH ALTITUDE] can cause the lamp to overcool, causing the image to flicker � Switch [FAN MODE] to [AUTO]� (→ page 121) Image is scrolling ver - tically, horizontally or both • Check the computer’s resolution and frequency. Make sure that the resolution you are trying to display is supported by the projector � (→ page 213)• Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (→ page 105)
223 9. Appendix R e m o t e c o n t r o l d o e s not work• Install new batteries.(→ page 9)• Make sure there are no obstacles between you and the projector.• Stand within 22 feet (7 m) of the projector. (→ page 9)• To perform computer mouse operations using the projector’s remote control, connect the optional mouse receiver to the computer � (→ page 35) Indicator is lit or blink - ing • See the POWER/STATUS/LAMP Indicator. (→ page 220) C r o s s c o l o r i n R G B mode • Press the AUTO ADJ. button on the projector cabinet or the remote control. (→ page 28)• Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (→ page 104) For more information contact your dealer.
224 9. Appendix If there is no picture, or the picture is not displayed correctly. • Power on process for the projector and the PC. Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power to the notebook PC. In most cases the output signal from the notebook PC is not turned on unless connected to the projector before being powered up. NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information. If it reads “0kHz”, this means there is no signal being output from the computer. (→ page 126 or go to next step) • Enabling the computer’s external display. Displaying an image on the notebook PC’s screen does not necessarily mean it outputs a signal to the projector. When using a PC compatible laptop, a combination of function keys will enable/disable the external display. Usu- ally, the combination of the “Fn” key along with one of the 12 function keys gets the external display to come on or off. For example, NEC laptops use Fn + F3, while Dell laptops use Fn + F8 key combinations to toggle through external display selections. • Non-standard signal output from the computer If the output signal from a notebook PC is not an industry standard, the projected image may not be displayed correctly. Should this happen, deactivate the notebook PC’s LCD screen when the projector display is in use. Each notebook PC has a different way of deactivate/reactivate the local LCD screens as described in the previous step. Refer to your computer’s documentation for detailed information. • Image displayed is incorrect when using a Macintosh When using a Macintosh with the projector, set the DIPswitch of the Mac adapter (not supplied with the projector) according to your resolution. After setting, restart your Macintosh for the changes to take affect. For setting display modes other than those supported by your Macintosh and the projector, changing the DIP switch on a Mac adapter may bounce an image slightly or may display nothing. Should this happen, set the DIP switch to the 13" fixed mode and then restart your Macintosh. After that, restore the DIP switches to a displayable mode and then restart the Macintosh again. NOTE: A Video Adapter cable manufactured by Apple Computer is needed for a PowerBook which does not have a mini D-Sub 15-pin connector. • Mirroring on a PowerBook * When using the projector with a Macintosh PowerBook, output may not be set to 1024 × 768 unless “mirroring” is off on your PowerBook. Refer to owner’s manual supplied with your Macintosh computer for mirroring. • Folders or icons are hidden on the Macintosh screen Folders or icons may not be seen on the screen. Should this happen, select [View] → [Arrange] from the Apple menu and arrange icons.
225 9. Appendix PC Control Codes and Cable Connection PC Control Codes Function Code Data POWER ON 02H 00H 00H 00H 00H 02H POWER OFF 02H 01H 00H 00H 00H 03H INPUT SELECT COMPUTER 1 02H 03H 00H 00H 02H 01H 01H 09H INPUT SELECT COMPUTER 2 02H 03H 00H 00H 02H 01H 02H 0AH INPUT SELECT COMPUTER 3 02H 03H 00H 00H 02H 01H 03H 0BH INPUT SELECT HDMI 02H 03H 00H 00H 02H 01H 1AH 22H INPUT SELECT DisplayPort 02H 03H 00H 00H 02H 01H 1BH 23H INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H INPUT SELECT VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H INPUT SELECT NETWORK 02H 03H 00H 00H 02H 01H 20H 28H PICTURE MUTE ON 02H 10H 00H 00H 00H 12H PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H NOTE: Contact your local dealer for a full list of the PC Control Codes if needed. Cable Connection Communication Protocol Baud rate �����������������������������������������38400 bps Data length ��������������������������������������8 bits Parity �����������������������������������������������No parity Stop bit ��������������������������������������������One bit X on/off ��������������������������������������������None Communications procedure �������������Full duplex NOTE: Depending on the equipment, a lower baud rate may be recommended f\ or long cable runs. PC Control Connector (D-SUB 9P) NOTE 1: Pins 1, 4, 6 and 9 are no used. NOTE 2: Jumper “Request to Send” and “Clear to Send” together on both ends of the cable to simplify cable connection. NOTE 3: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps. 15 243 67 98 To GND of PC To RxD of PCTo TxD of PC To RTS of PC To CTS of PC
226 9. Appendix No image is displayed from your PC or video equipment to the projector� Still no image even though you connect the projector to the PC first, then start the PC� Enabling your notebook PC’s signal output to the projector � • A combination of function keys will enable/disable the exter-nal display. Usually, the combination of the “Fn” key along with one of the 12 function keys turns the external display on or off. No image (blue or black background, no display)� Still no image even though you press the AUTO ADJUST button� Still no image even though you carry out [RESET] in the projector’s menu� Signal cable’s plug is fully inserted into the input connector A message appears on the screen�( _____________________________________________ ) The source connected to the projector is active and available� Still no image even though you adjust the brightness and/or the contrast� Input source’s resolution and frequency are supported by the projector � Troubleshooting Check List Before contacting your dealer or service personnel, check the following list to be sure repairs are needed also by referring to the “Troubleshooting” section in your user’s manual. This checklist below will help us solve your problem more efficiently. * Print this page and the next page for your check. Frequency of occurrence always sometimes (How often?_____________________) other (__________________) Power No power (POWER indicator does not light blue) See also “Status Indicator (STATUS)”� Power cord’s plug is fully inserted into the wall outlet� Main power switch is pressed to the ON position� Lamp cover is installed correctly � Lamp Hours Used (lamp operation hours) was cleared after lamp replacement� No power even though you press and hold the POWER button for 1 second� Shut down during operation� Power cord’s plug is fully inserted into the wall outlet� Lamp cover is installed correctly� [AUTO POWER OFF] is turned off (only models with the [AUTO POWER OFF] function)� [OFF TIMER] is turned off (only models with the [OFF TIMER] function)� Video and Audio Image is too dark� Remains unchanged even though you adjust the brightness and/or the contrast� Image is distorted� Image appears to be trapezoidal (unchanged even though you carry out the [KEYSTONE] adjustment)� Parts of the image are lost� Still unchanged even though you press the AUTO ADJUST button� Still unchanged even though you carry out [RESET] in the projector’s menu� Image is shifted in the vertical or horizontal direction� Horizontal and vertical positions are correctly adjusted on a computer signal� Input source’s resolution and frequency are supported by the projector� Some pixels are lost� Image is flickering� Still unchanged even though you press the AUTO ADJUST button� Still unchanged even though you carry out [RESET] in the projector’s menu� Image shows flickering or color drift on a computer signal� Still unchanged even though you change [FAN MODE] from [HIGH ALTITUDE] to [AUTO]� Image appears blurry or out of focus� Still unchanged even though you checked the signal’s resolution on PC and changed it to projector’s native resolution� Still unchanged even though you adjusted the focus� Other Remote control does not work� No obstacles between the sensor of the projector and the remote control� Projector is placed near a fluorescent light that can disturb the infrared remote controls� Batteries are new and are not reversed in installation� Buttons on the projector cabinet do not work (only models with the [CONTROL PANEL LOCK] function) [CONTROL PANEL LOCK] is not turned on or is disabled in the menu� Still unchanged even though you press and hold the EXIT button for a minimum of 10 seconds�