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TV to VGA Converter/Line Doubler 

With Audio and Output VGA Switch 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

January 2002 

AC135A 

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX 
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 
Mail order:  Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 
Web site: www.blackbox.com   •   E-mail: [email protected]

 

CUSTOMER 

SUPPORT 

INFORMATION

Summary of Contents for AC135A

Page 1: ...n the U S 24 hours 7 A M Monday to midnight Friday 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com CUSTOMER SUPPORT INFORMATION ...

Page 2: ...emarks of Apple Computer Inc IBM is a registered trademark of International Business Machines Corporation SGI is a registered trademark of Silicon Graphics Inc Sun and Sun Microsystems are registered trademarks of Sun Microsystems Inc in the United States and other countries Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners ...

Page 3: ...residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise em...

Page 4: ...únicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato el...

Page 5: ...mpiado únicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación...

Page 6: ...on page 6 1 1 General page 6 1 2 Features page 7 2 Installation page 8 3 Operation page 11 4 Configuration page 13 4 1 RS 232 Control and Configuration page 13 4 2 Control Panel Software for Windows page 14 5 Troubleshooting page 15 6 Specifications page 16 ...

Page 7: ... user can select any of the inputs using a single push button switch on the front panel An RS232 serial port is available for external control and or changing the internal configuration of the unit Selection of the input channel for display is made by a simple one button operation The audio selection follows the selected input channel switched on or off or can be mixed continuously to the output T...

Page 8: ...ignificantly improves appearance of projected video images Reduces visible line structure on large video images VGA input for full screen TV or PC Video display RS 232 control input port No software required 4 Stereo audio inputs User programmable brightness and contrast for TV input Low cost high reliability Packaged in portable EMI shielded enclosure VGA input resolutions to 1600 x 1200 Figure 1...

Page 9: ...lation 1 Connect one or more of the video and audio input signals to the input connectors on the AC135A Figure 2 1 shows a typical setup Figure 2 1 Video Conferencing Document Camera Notebook PC VCR or DVD VGA Projector VGA LCD Monitor or AC135A ...

Page 10: ...nput cable is provided for connection to a PC sound output CV IN 1 RCA Female Composite NTSC or PAL From any video source AUDIO IN 3 5mm 1 8 Mini Stereo Line level stereo Audio CV IN 2 RCA Female Composite NTSC or PAL From any video source AUDIO IN 3 5mm 1 8 Mini Stereo Line level stereo Audio S VID IN MiniDin 4 Female Y C S Video S VHS AUDIO IN 3 5mm 1 8 Mini Stereo Line level stereo Audio The ou...

Page 11: ...lso standard with the exception that the left and right audio output are available on two normally undedicated pins see table 2 1 These audio outputs are available in addition to the separate standard audio output connector on the box and are normally used in special applications only High Density 15 pin VGA Output Connector PIN Function 1 Red 2 Green 3 Blue 4 Right Audio 5 Left Audio 6 Red Return...

Page 12: ...nit buffers the signal and passes it to the output without modification If the input is from one of the 3 NTSC or PAL channels the unit automatically converts the signal to VGA Line doubling and image processing via digital filtering do the conversion The output signal preserves the entire information contained in the TV input signal and also improves the way it appears on the screen by line doubl...

Page 13: ...utput normally follows the video input signal However you can mix any or all of the audio input signals to the output contact factory for details An example of this can be a situation in which a line level microphone feed is connected to one of the audio inputs and you don t want it to ever be switched off so when you switch the input between a PC and a DVD the MIC input is always mixed in with th...

Page 14: ...tion software such as Windows Hyper Terminal or contact Black Box to obtain a Windows based control and setup program for the AC135A You would need a straight through DB9 Male to Female cable for connection to a PC For example when using Windows Hyper Terminal do the following Use Comm port 1 or 2 of the PC Configure for 1200 baud 8 bits no parity one stop bit Set for ANSI emulation ASCII with no ...

Page 15: ...or VGA respectively 3 Put in a data value of 255 if you want that input to always mix in with the output or put in 0 to make it switched 4 Turn device off and then back on 4 2 Control Panel Software for Windows Optional Windows based Control Panel software is available for the AC135A The software includes options for changing the default brightness contrast audio switching mixing setup selecting i...

Page 16: ...he converter relies on the AC power adapter that is supplied with it The adapter generates a floating 6 or 7 5v DC output Calling Black Box If you determine that your converter is malfunctioning do not attempt to repair the unit Contact Black Box Tech Support at 724 746 5500 Before you do make a record of the history of the problem We will be able to provide more efficient and accurate assistance ...

Page 17: ... Output Same as VGA input or 640x480 800x600 for conversion NTSC PAL respectively Bandwidth Video DC to 200 MHz Video Level 0 7 volts peak to peak on RGB TTL on H V Connectors HD15 for VGA RCA for CV MD4 for S VHS Temperature Tolerance Operating 32 to 122 F 0 to 50 C Storage 40 to 185 F 40 to 85 C Enclosure Steel MTBF 200 000 hours calculated estimate Power From utility power mains outlet through ...

Page 18: ... Copyright 2001 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 ...

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