Extron electronic VTG 200 user manual Troubleshooting, 9AUsing the VTG 150 to test a switcher

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Application Information

Troubleshooting

The VTG can be used for presentation system troubleshooting. It can be placed in any part of the system to simulate a computer signal. For example, if your system consists of a projector, switcher and several computers, and the picture is not coming up correctly on the projector, the VTG can be connected at different points in the system, such as:

When a distribution amplifier is being used, the VTG can be connected as an input source to test the amplifier's outputs.

Connect the VTG to the input of an interface, and the output of the interface to a display device, thereby testing the interface.

The VGA and Mac outputs can be used to test analog interfaces.

The 9-pin output can be used to test TTL interfaces.

Connect it to the projector’s input to test whether the projector is operating properly with the computer input. (See fig. 4-9A.)

Connect it to the switcher’s inputs to test if all the inputs are working properly and a signal passes through. (See fig. 4-9A.)

90-240VAC, 50/60Hz

FUSE: 250V, 400mA SLO-BLO

Figure 4-9AUsing the VTG 150 to test a switcher.

Application Information

The VTG 150 or the VTG 200 can be used to help isolate problems within complex switcher configurations such as the one pictured below.

OUTPUT

Figure 4-9A

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Extron • VTG 150 & VTG 200 • User’s Manual

Extron • VTG 150 & VTG 200 • User’s Manual

Page 4-10

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Contents Video Test Generators VTG 150, VTGSafety Instructions English PrecautionsContents Reference Material Appendix a IntroductionVTG 200 RS-232 Control and Software Chapter VTG 200 Features VTG 150 FeaturesVideo signal characteristics IntroductionVideo output Connecting the VTG Output CablesControl/remote test generator VTG 200 only GeneralPin HD VGA/XGA Output Connecting the VTG Output CablesPin, TTL Output VTG 200 ↑ VTG 150 ↓NTSC/PAL BNC Output VTG 200 only RGB Output BNC, Analog13W3 Sun/SGI/IBM Output VTG 200 only Adapting the VTG 150 to Other StandardsOperating the Video Test Generator Connecting TTL Output to an AT&TPin Signal 25-Pin Operating the Video Test Generator Power Off TimerChange Scan Rate Change Test PatternApplication Information VTG Formats Video Test Patterns Pattern 3 Alternating Pixels ResolutionPattern 10 Flat Field Purity Adjustment Video Setup Guide Setting Up Large Screen Projection Systems8AVTG 150 Apple/Mac ll Dot Test Pattern Monitor Applications9AUsing the VTG 150 to test a switcher TroubleshootingVTG 200 RS-232 Control and Software VTG 200 RS-232 Control and Connection to a Computer Using the Command/Response TableHost/VTG 200 Communications Pin # FunctionResponse Command to Host Description Command/Response TableError Responses Definitions and AbbreviationsVTG 200 Control Program Installing the SoftwareUsing the Software 7A ↑ Reference Material VTG Software Updates Part NumbersPart Numbers VTG Software UpdatesA-3