Extron electronic DDS 402 manual Reference Information, cont’d, Firmware Upgrade Installation

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Reference Information, cont’d

Firmware Upgrade Installation

In some cases the DDS 402’s firmware may require replacement with an updated version. There are two user-replaceable firmware chips, U60 — the main microcontroller and U24, and one set of chips, U67 and U68. The chip set, U67 and U68, are replaced as a pair. The U-numbers are printed on the circuit board. We recommend that you send the unit in to Extron for service and updates.

Changes to firmware must be performed by authorized service personnel only. Some DDS 402 firmware updates must be performed at the Extron factory.

Replace firmware in the DDS 402 as follows:

1.Disconnect the AC power cord from the DDS 402 to remove power from the unit.

To prevent electric shock, always unplug the DDS 402 from the AC power source before opening the enclosure.

2.Remove the DDS 402 from the rack or furniture.

3.Remove the cover of the DDS (the top half of the enclosure) by removing the 13 screws, 7 on the top and 3 on each side, then lifting the cover straight up (figure A-1).

Remove (13) screws from top and sides.

Lift Cover

Straight Up

DETAIL

ADJUSTMENTSZOOM

PICTUREBRT/CONT

SIZE

CENTER

RGB Y
INPUTS	B-Y,
R-Y,
RGB	2
1

FREEZE

MENU

NEXT

ADJUST
				DS	40	2
			D	DS	LER
			D	SCA
		DISP	LAY
	TAL	DISP
DIGI	TAL
DIGI

Figure A-1 — Removing the DDS 402 cover

Do not touch any switches or other electronic components inside the DDS 402. Doing so could damage the scaler. Electrostatic discharge (ESD) can damage IC chips even though you cannot feel it. You must be electrically grounded before proceeding with firmware replacement. A grounding wrist strap is recommended.

4.Locate the firmware chip(s) to be replaced on the circuit board (figure A-2).

5.For U67 and U68, after you are electrically grounded, remove the U67 and

U68 IC chip set (which must be replaced as a pair) by grasping each chip firmly with your fingers and pulling it out, then continuing to step 9.

U67 and U68

A-4 Digital Display Scaler • Reference Information

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Contents DDS Digital Display ScalerSicherheitsanleitungen Deutsch Safety Instructions EnglishConsignes de Sécurité Français Instrucciones de seguridad EspañolRear panel video outputs QS-1Main menu Input menu Default display cycleQuick Start DDS 402, cont’d QS-2QS-3 Memory Presets menuOutput menu Executive Mode menu Advanced Configuration menuPicture Adjustments menu Exit menuTable of Contents Table of Contents, cont’d Digital Display Scaler Table of Contents Iii Iv Digital Display Scaler Table of Contents One About the Scaler Introductiontroduction, cont’dAbout this Manual Digital Display Scaler IntroductionFeatures Introduction, cont’d Digital Display Scaler Introduction Introduction, cont’d Two Mounting the Scaler Installationstallation, cont’dInstallation Overview Cabling and Rear Panel ViewsVideo input connections Video output connectionsPower connection Installation, cont’dConfiguration RS-232 connectionThree Freeze button Front Panel Controls and IndicatorsOperationeration, cont’d Input buttonsLCD display Picture adjustment buttonsAdjustment knobs Menu control buttonsFront Panel Operations PowerOperation, cont’d Button iconsConfiguration Input Configuration menuInput #2 submenu Pixel Phase submenuOutput Configuration menu Output Signal submenu Resolution and refresh rates submenuResolution 50 Hz 56 Hz 60 Hz 75 Hz 85 Hz Lock at 50/60 Hz Sync Polarity submenuSave Presets submenu Erase Presets submenuEdge Smoothing submenu Blue Mode submenuRGB Delay submenu Test Pattern submenuPicture adjustments Reset submenuFront panel security lockout executive mode Adjust knobs have no mechanical limits to their rotationSetting up a DVD source Optimizing the VideoFour Symbols Digital Display Scaler Programmer’s GuideScaler-Initiated Messages Programmer’s Guide, cont’d RGB delayPresets Test patternHost-to-Scaler Instructions Scaler Error ResponsesUsing the Command/Response Table Command/response table for SIS commands Command Ascii Command Response Additional descriptionCommand/response table for SIS commands cont’d Test pattern Command/response table for special function SIS commands Command Ascii Command ResponseProgrammer’s Guide, cont’d Five Control Software for Windows Installing the softwareUsing the control program Digital Display Scaler Scaler SoftwareUsing the help program Control program I/O configuration windowButton Label Generator Using the softwareScaler Software, cont’d AAppendix a Specifications Digital Display Scaler Reference InformationSuggested part Part NumbersIncluded parts Included parts Part numberFirmware Upgrade Installation Reference Information, cont’dU24 U60 U68U67 Installing labels in the scaler’s buttons Button LabelsFCC Class a Notice Extron’s Warranty Extron Electronics, USA

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