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Extron electronic P/2 DA8 Installation and Operation, cont’d Operation, Sync impedance switches

Models: P/2 DA12 Series P/2 DA8

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Installation and Operation, cont’d

Installation and Operation, cont’d

Operation

After the distribution amplifier and its connected devices are powered up, the system is fully operational. If any problems occur, ensure that the cables are properly routed and connected.

Sync impedance switches

To solve laptop compatibility issues on the video input, or reflection problems on the video output, use these dip switches to correct for sync impedance mismatches.

SYNC IMPEDANCE

1 2 3 4 5 6 7

ON	ON
OFF	1	2	3	4	5	6	7

Switch 1 (sync input impedance) — The default setting is OFF (510 ohms). If the image from the laptop is unstable, slide the DIP switch ON (10k ohms).

Switches 2-7 (sync output impedance) — Each of these switches controls a pair of outputs simultaneously (see table below). The default setting is OFF (50 ohms). If the front LED is green and all the input and output cables are connected correctly, but there is no image on the display, slide the switch to ON (75 ohms).

Switch

Function

Sync Impedance (ohms)

On	Off

1

2

3

4

5

6

7

Input sync		10,000
Output 1 & 2 sync		75
Output 3 & 4 sync		75
Output 5 & 6 sync		75
Output 7 & 8 sync		75
Output 9	& 10 sync	75
Output 11	& 12 sync	75

510

50

50

50

50

50

50

NSwitches 6 and 7 are only available on P/2 DA12 models.

2-8 P/2 DA8 and P/2 DA12 • Installation and Operation

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Extron electronic P/2 DA8 Installation and Operation, cont’d Operation, Sync impedance switches, Switch, Function

FAQ

What should I do if the image from my laptop is unstable?

Slide the DIP switch ON to 10k ohms to correct the sync input impedance.

Why is there no image on the display even though all cables are connected correctly?

If the front LED is green but there is no image, slide the switch to ON 75 ohms to correct the sync output impedance.

How do I solve laptop compatibility issues on the video input?

Use the dip switches to correct for sync impedance mismatches.

Contents

68-1475-01 VGA Distribution AmplifiersP/2 DA8 and P/2 DA12 Series Rev. AConsignes de Sécurité Français PrecautionsSafety Instructions English Sicherheitsanleitungen DeutschFCC Class A Notice 安全须知中文Page P/2 DA8 and P/2 DA12 Table of Contents Table of ContentsChapter Two Installation and Operation Appendix A Reference InformationTable of Contents, cont’d iiP/2 DA8 and P/2 DA12 Table of ContentsIntroduction Features of P/2 DA8 and P2 DA12 SeriesChapter1One P/2 DA8 and P/2 DA12 SeriesDescription of P/2 DA8 and P/2 DA12 Series IntroductionAbout This Manual 1-2P/2 DA8 and P/2 DA12 IntroductionFeatures of P/2 DA8 and P/2 DA12 Series P/2 DA8 and P/2 DA12 IntroductionIntroduction, cont’d 1-4P/2 DA8 and P/2 DA12 IntroductionFront Panel Features Rear Panel Features Installation and OperationInstallation Overview Operation TroubleshootingTabletop placement Installation and OperationInstallation Overview Mounting the Distribution AmplifierP/2 DA8 and P/2 DA12 Installation and Operation Rack mounting proceduresInstallation and Operation, cont’d Under-deskmountingFigure 2-2- Under-deskmounting the interface P/2 DA8 and P/2 DA12 Installation and Operation Front Panel Features Figure 2-3- Front panel featuresInstallation and Operation, cont’d Rear Panel Features Figure 2-4- Rear panel featuresP/2 DA8 and P/2 DA12 Installation and Operation Switch Installation and Operation, cont’d OperationSync impedance switches FunctionVideo Input and Output Connections P/2 DA8 and P/2 DA12 Installation and OperationFigure 2-5- Video Connections Figure 2-6- Audio input Audio inputAudio output Figure 2-7- Audio output connectionsP/2 DA8 and P/2 DA12 Installation and Operation Figure 2-8- Audio output wiringMute Control Each output is assigned to a pin on the captiveTroubleshooting Installation and Operation, cont’dReference Information Specifications Included Parts AccessoriesAAppendix A P/2 DA8 and P/2 DA12 SeriesVideo SpecificationsReference Information Video InputSync P/2 DA8 and P/2 DA12 Reference InformationAudio Input - P/2 DA8 A, P/2 DA12 A Reference Information, cont’dAudio - P/2 DA8 A, P/2 DA12 A Audio Output - P/2 DA8 A, P/2 DA12 AGeneral P/2 DA8 and P/2 DA12 Reference InformationReference Information, cont’d Included Parts Optional accessories and cablesAccessories A-6P/2 DA8 and P/2 DA12 Reference InformationAccessories P/2 DA8 and P/2 DA12 Reference InformationPart number A-8P/2 DA8 and P/2 DA12 Reference Information Reference Information, cont’dUSA, Canada, South America Extron’s WarrantyFCC Class A Notice and Central AmericaExtron Electronics, Japan Extron Electronics, Europe Beeldschermweg 6CExtron Electronics, Asia 135 Joo Seng Rd. #04-01 Kyodo Building, 16 Ichibancho Chiyoda-ku,Tokyo