NEC Projector PA622U User Manual
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178 9. Appendix ❽ 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 HDMI1 02H 03H 00H 00H 02H 01H A1H A9H INPUT SELECT HDMI2 02H 03H 00H 00H 02H 01H A2H AAH INPUT SELECT DisplayPort 02H 03H 00H 00H 02H 01H A6H AEH INPUT SELECT BNC 02H 03H 00H 00H 02H 01H 02H 0AH INPUT SELECT BNC(CV) 02H 03H 00H 00H 02H 01H 06H 0EH INPUT SELECT BNC(Y/C) 02H 03H 00H 00H 02H 01H 0BH 13H INPUT SELECT COMPUTER 02H 03H 00H 00H 02H 01H 01H 09H INPUT SELECT HDBaseT 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 SOUND MUTE ON 02H 12H 00H 00H 00H 14H SOUND MUTE OFF 02H 13H 00H 00H 00H 15H 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 for 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 PC To TxD of PC To RTS of PC To CTS of PC
179 9. Appendix ❾ 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�□ 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 but- □ ton� □ 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 □ 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 � □ 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�□ □ No sound� Audio cable is correctly connected to the audio input of the □ projector � Still unchanged even though you adjusted the volume level�□ AUDIO OUT is connected to your audio equipment (only models □ with the AUDIO OUT connector)� 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�
180 9. Appendix In the space below please describe your problem in detail. Information on application and environment where your projector is used ProjectorPC Blu-ray player ProjectorModel number: Serial No�: Date of purchase: Lamp operating time (hours): Eco Mode: □ OFF □ ON Information on input signal: Horizontal synch frequency [ ] kHz Vertical synch frequency [ ] Hz Synch polarity H □ (+) □ (−) V □ (+) □ (−) Synch type □ Separate □ Composite □ Sync on Green STATUS Indicator: Steady light □ Orange □ Green Flashing light [ ] cycles Remote control model number: Installation environment Screen size: inch Screen type: □ White matte □ Beads □ Polarization □ Wide angle □ High contrast Throw distance: feet/inch/m Orientation: □ Ceiling mount □ Desktop Power outlet connection: □ Connected directly to wall outlet □ Connected to power cord extender or other (the number of connected equipment______________) □ Connected to a power cord reel or other (the number of connected equipment______________) Computer Manufacturer: Model number: Notebook PC □ / Desktop □ Native resolution: Refresh rate: Video adapter: Other: Video equipment VCR, Blu-ray player, Video camera, Video game or other Manufacturer: Model number: Signal cable NEC standard or other manufacturer’s cable? Model number: Length: inch/m Distribution amplifier Model number: Switcher Model number: Adapter Model number: