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| NEC Display Solutions of America, Inc. | ||||||||
| NP905 Installation Guide |
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| Ceiling Mounted and Desktop |
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| Rev 1.1 | ||
| PC Control Codes |
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| Function | Code Data |
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| POWER ON | 02H | 00H | 00H | 00H | 00H | 02H |
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| POWER OFF | 02H | 01H | 00H | 00H | 00H | 03H |
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| INPUT SELECT COMPUTER 1 | 02H | 03H | 00H | 00H | 02H | 01H | 01H | 09H |
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| INPUT SELECT COMPUTER 2 | 02H | 03H | 00H | 00H | 02H | 01H | 02H | 0AH |
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| INPUT SELECT HDMI | 02H | 03H | 00H | 00H | 02H | 01H | 1AH | 22H |
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| INPUT SELECT VIDEO | 02H | 03H | 00H | 00H | 02H | 01H | 06H | 0EH |
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| INPUT SELECT | 02H | 03H | 00H | 00H | 02H | 01H | 0BH | 13H |
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| INPUT SELECT VIEWER | 02H | 03H | 00H | 00H | 02H | 01H | 1FH | 27H |
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| PICTURE MUTE ON | 02H | 10H | 00H | 00H | 00H | 12H |
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| PICTURE MUTE OFF | 02H | 11H | 00H | 00H | 00H | 13H |
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| SOUND MUTE ON | 02H | 12H | 00H | 00H | 00H | 14H |
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| SOUND MUTE OFF | 02H | 13H | 00H | 00H | 00H | 15H |
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| ON SCREEEN MUTE ON | 02H | 14H | 00H | 00H | 00H | 16H |
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| ON SCREEN MUTE OFF | 02H | 15H | 00H | 00H | 00H | 17H |
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| ASPECT RATIO (4:3 Screen) |
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| 4:3 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 00H | 00H | 30H |
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| LETTERBOX | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 01H | 00H | 31H |
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| WIDESCREEN | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 02H | 00H | 32H |
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| ZOOM | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 03H | 00H | 33H |
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| ASPECT RATIO (16:9 Screen) |
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| 4:3 WINDOW | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 00H | 00H | 30H |
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| LETTERBOX | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 01H | 00H | 31H |
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| WIDESCREEN | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 02H | 00H | 32H |
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| 4:3 FILL | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 03H | 00H | 33H |
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| ASPECT RATIO (RGB) |
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| 4:3 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 00H | 00H | 30H |
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| 16:9 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 02H | 00H | 32H |
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| 5:4 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 0BH | 00H | 3BH |
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| 16:9 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 0CH | 00H | 3CH |
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15:9 | 03H | 10H | 00H | 00H | 05H | 18H | 00H | 00H | 0DH | 00H | 3DH | ||||||
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| AUTO ADJUST | 02H | 0FH | 00H | 00H | 02H | 05H | 00H | 18H |
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Note: Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol:
Baud Rate: | 38400 bps (for cable lengths longer than 20’, it is recommended changing to 9600 bps in setup menu) | ||||
Data Length: | 8 bits |
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| To TxD of PC |
Parity: | No Parity |
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| To RxD of PC |
Stop Bit: | One Bit |
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| To GND of PC |
X on/off: | None |
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Communications: Full duplex | 2 | 3 | 4 | 5 | |
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| 6 | 7 | 8 |
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NOTE 1 : Pins 2, 3, 5, and 6 are used inside the projector.
NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
www.necdisplay.com | NP905 | Page 6 of 6 |
