User’s Manual RGB 168xi VGA Interface with Stereo Audio and ADSP™ 68-550-01 Rev.
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock. Caution Read Instructions • Read and understand all safety and operating instructions before using the equipment.
FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Table of Contents Chapter 1 • Introduction .......................................................... 1-1 About this Manual ................................................................ 1-2 xi ............................................................. 1-2 About the RGB 168xi Features ...................................................................................... 1-2 Chapter 2 • Installation and Operation .......................... 2-1 Installation Overview .....................................
Table of Contents, cont’d xi • Table of Contents TOC-ii RGB 168xi
RGB 168xi xi 1 Chapter One Introduction About this Manual About the RGB 168xi Features
Introduction, cont’d Introduction About this Manual This manual contains information about the RGB 168xi universal analog interface and how to operate and configure it. About the RGB 168xi xi The RGB 168xi is a computer-video and stereo audio interface with 300 MHz (-3dB) video bandwidth. This interface has a horizontal frequency range of 15 kHz to 125 kHz, so it can be used with any type of analog computer signal, including those from VGA to UXGA-2, Mac, Quadra, Sun, and SGI computers.
devices such as LCD projectors, DLP projectors and plasma displays. A rear panel DIP switch allows an alternative, Digital Display Sync Processing™ (DDSP™), to be used instead. Gain/peaking control — To compensate for signal degradation caused by long cable lengths, use this rear panel toggle switch to increase output voltages. Serration pulse — This feature allows serration pulses to either be present or not present at the output. Serration pulses are required for some displays.
Introduction, cont’d 1-4 RGB 168xi xi • Introduction
RGB 168xi xi 2 Chapter Two Installation and Operation Installation Overview Front Panel Rear Panel Setting Internal Jumpers Installing Adapter Plates Mounting the Interface Cabling Troubleshooting RGB 168xi xi • Installation and Operation
Installation and Operation, cont’d Installation and Operation Installation Overview To install and set up the RGB 168xi for operation, follow these basic steps: 1 Turn all of the equipment off. Make sure that the computer, the interface and the output device(s) (projector or display monitor, and local monitor) are all turned off and disconnected from the power source. 2 Set internal jumpers for sync polarity and sync pulse width. See “Setting Internal Jumpers” in this chapter.
Front Panel This section familiarizes you with the front panel features and the options for making connections and changing settings. Setting DIP switches The DIP switches on the front and rear panels of the RGB 168xi may be either the rocking type or the sliding type. 1 2 3 4 1 2 3 4 To set rocking type DIP switches, use a small screwdriver to depress the appropriate end of each switch.
Installation and Operation, cont’d 5 Buffered local monitor output 15-pin HD female connector — This allows output to a local monitor. Set the ID PIN DIP switches to On if this connector is not used. 6 Horizontal shift control knob — This control adjusts the horizontal centering of the remote output display. The horizontal shift control has no mechanical limits to rotation.
GAIN/ PEAK 100% SOG DDSP SERR SPARE Rear Panel R G B H V S UNITY 100-240 50/60 Hz 0.5A 1 OUTPUT 50% 2 2 3 4 5 6 7 1 AC power input connector — Connect a standard IEC AC power cord here for power input (100 VAC to 240 VAC, 50/60 Hz). 2 Cable access openings — Cables attached to the front panel A/V pass-through architectural adapter plates exit the enclosure here. Clamp cables in place with the supplied hardware.
Installation and Operation, cont’d If the edges of the image seem to exceed their boundaries or if thin lines and sharp edges look thick and fuzzy, try changing the gain/peak setting. DIP switches — The four DIP switches on the rear panel control sync on green (SOG) output, Digital Display Sync Processing and serration pulse removal. The fourth switch is a spare and it has no function. SOG DDSP SERR SPARE 5 1 — SOG (sync on green) ON — When this switch is set to On, the interface outputs sync on green.
3 — SERR (serration pulse) — Many display devices, including LCD and DLP projectors and plasma displays, must have serration pulses removed from the sync signal in order to display properly. Flagging or bending at the top of the video image is a sign that the serration pulses should be removed. ON — When this switch is set to On, serration pulses are output in the vertical sync interval. OFF — When this switch is set to Off, serration pulses are not output.
Installation and Operation, cont’d Setting Internal Jumpers The jumpers inside the interface(s) are set at the factory to meet the requirements of most systems. However, you can change a jumper setting to meet the needs of a particular system. Changes to internal jumper settings must be performed by authorized service personnel only. The user-configurable, internal jumpers control the following functions: • horizontal and vertical sync polarity, and • vertical sync pulse width.
pins 1 and 2 connected, and 1 and 2 pins 2 and 3 connected. 2 and 3 Rear 1 J19 1 J20 J20: Sync polarity jumper 1 J40 J40: Vertical sync width jumper Power Supply Front Circuit board jumper locations 4. Configure the jumpers. To configure the jumpers, use pliers to pull the jumper shunt off the pins, then place the jumper on the appropriate pins. Changing jumper settings The jumpers perform the following functions: J-20: Sync polarity jumper — This jumper adjusts the output sync polarity.
Installation and Operation, cont’d • If the jumper is placed on pins 1 and 2, output H and V sync polarities are forced to negative. • If the jumper is placed on pins 2 and 3, output sync polarities follow input sync polarity: the output sync signals’ polarity are the same as the input polarity. This is the default setting. Wide Short 1 J-40: Vertical sync width jumper — This jumper adjusts the vertical sync pulse width.
Adapter plate installation must be performed by authorized service personnel only. Follow these steps to install adapter plates. 1. Make sure that the power is removed from the interface by disconnecting the AC power cord from the unit. 2. Open the cover of the interface (the top half of the enclosure), as shown below. Remove the screws from the enclosure, and lift the cover straight up. Do not touch any switches or electronic components inside the interface. Doing so could damage the interface.
Installation and Operation, cont’d Cable Routing HED ITC SW UN X. TS 600 MA WAT E TAG VOL HIGH A C IT U O N xi 68 P B 1 /ADS RGACE W ID PIN 14 ID PIN 11 UN IVER SA L IN TE RF /MAX MIN L CA LO T ED PU ER OUT FF R BU NITO MO TS ALOG INPU AN AU DIO Tighten nuts securely Adapter Plate Routing adapter output cables and attaching adapter plates 6. Insert the adapter plate screws through the holes in the interface front panel, as shown above.
100-240 50/60 Hz 0.5A 9. Replace the top cover on the interface, and fasten it with the screws removed in step 2. Mounting the Interface Select the installation site. Take cabling and power availability into consideration. Select an installation option: tabletop/desktop placement, or under-desk, through-desk or rack mounting.
Installation and Operation, cont’d D HE ITC SW UN 600 TT WA S MA X. 8 xi B 16/ADSP RGCE W FA ER AL RS INT X /MA MIN IVE ID PIN 14 ID PIN 11 UN L CA LO UT ED TP ER OU FF BU NITOR MO S UT ALOG INP AN DIO AU Under-desk mounting Through-desk mounting 1. Attach the Extron MBD 149 through-desk mounting brackets (part #70-077-03) to the interface with the provided machine screws. 2. Hold the interface with attached brackets against the underside of the mounting surface of the desk or table.
X. A M S ATT W 0 60 ED H C IT SW N D /A 8 W E 16 C FA B R G TE R L A C UT LO TP ED OU ER R FF O U IT B ON M U N IV ER SA L IN xi SP X A /M IN M U ID PIN PIN ID AU IO D IN TS NA PU A LO G 14 11 Through-desk mounting To adjust the height of the interface within the desk, slightly loosen the screws that attach the brackets to the interface, adjust the height by sliding the interface up or down, and retighten the screws.
Installation and Operation, cont’d 4. Circuit overloading — Connect the equipment to the supply circuit and consider the effect that circuit overloading might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern. 5. Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted equipment. Pay particular attention to supply connections other than direct connections to the branch circuit (e.g.
Cabling Attach cables to the interface as detailed in the steps below. A diagram later in this section shows how the system looks when cabling is finished. 1. Connect the computer’s video output to the interface’s front panel analog/ECL 9-pin D connector. If the computer will provide the audio input, a VGA with audio combination cable, such as an Extron VGA M MHRA series cable (#26-490-01 to #26-490-05), can be used. 2.
Installation and Operation, cont’d 5. Connect powered speakers or another audio device to the rear panel captive screw connector. Follow the wiring guide shown below. Insert the wires into the appropriate openings. Tighten the screws on top to fasten the wires, then insert the wired audio connector into the audio output connector on the interface rear panel. CAUTION Connect the sleeve to ground (GND). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits.
2 - BNC 2 - 3.5mm Stereo mini 2 - RCA DB9 2 - S-Video HD15 2 - F Connectors 1 - S-Video / 2 - RCA Through-desk or Rack Mounted or Mounted Under a Desk D HE ITC SW UN X. S MA 600 FA INT AC Power Network Connection 8 xi B 16/ADSP RGCE W ER AL RS TT WA AX MIN/M IVE S UT ALOG INP AN Front Audio SOG OUT DDSP SERR SPARE ID PIN 14 ID PIN 11 UN L CA LO UT ED TP ER OU FF BU NITOR MO EL/ LEV K PEA 50% 0.8V DIO AU ITY UN % 100 0.9V Rear 0.
Installation and Operation, cont’d Troubleshooting When the interface, computer and output devices have been properly installed, and the power is turned on, the image should appear on screen, and sound should be audible. If the image does not appear or there is no sound 1. Ensure that all devices are plugged in. 2. Make sure that each device is receiving power. The power indicator LED should light if the interface is powered on. 3.
RGB 168xi xi A Appendix A Specifications, Accessories, and Part Numbers Specifications Included Parts Accessories Cables Adapter Plates Product X Operation 3-xxix
Specifications, cont’d Specifications, Accessories, and Part #s Video Gain ................................................ Unity, (0.725 Vp-p) 50% peaking, (0.75 Vp-p) 100% peaking Bandwidth ..................................... 300 MHz (-3 dB) Video input Number/signal type ................... Connectors ................................... Nominal level ............................... Minimum/maximum levels ....... Impedance .................................... Horizontal frequency ..................
Audio Gain ................................................ Unbalanced output: 0 dB; balanced output +6 dB Frequency response .................... 20 Hz to 20 kHz, ±0.05 dB THD + Noise ................................. 0.03% @ 1 kHz, 0.3% @ 20 kHz at nominal level S/N ................................................ >72 dB, at maximum output (14 dBu), balanced (unweighted) Stereo channel separation .......... >66 dB @ 1 kHz to 20 kHz Audio input Number/signal type ...................
Specifications, Accessories and Part #s, cont’d Enclosure dimensions ................. 1.75" H x 17.5" W x 6.0" D (1U high, full rack wide) 4.4 cm H x 44.5 cm W x 15.2 cm D (Depth excludes connectors and knobs. Width excludes rack ears.) Product weight ............................. 3.5 lbs (1.6 kg) Shipping weight ........................... 7 lbs (4 kg) Vibration ....................................... ISTA 1A in carton (International Safe Transit Association) Listings .....................................
Included Parts These items are included in each order for an RGB 168xi : Included parts Part number RGB 168xi 60-379-12 Blank adapter plate, double height (3) 70-090-12 MBD 149 through-desk mounting bracket 70-077-03 3.5 mm, 5-pole captive screw connector 10-319-10 Accessories Accessories Part number MBU 125 under-desk mounting bracket 70-077-01 3.
Specifications, Accessories and Part #s, cont’d A-6 RGB 168xi xi • Specifications, Accessories and Part #s
Adapter Plates A variety of optional architectural adapter plates for pass-through connections may be ordered for these interfaces. The RGB 168xi can hold up to four (4) input adapter plates and two (2) output adapter plates.
Specifications, Accessories and Part #s, cont’d A-8 RGB 168xi xi • Specifications, Accessories and Part #s
Extron’s Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
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