ASTRO-PHYSICS GTO KEYPAD Доповнення

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Plus Supplemental Information for Customers Outside of North America

and the Revised GTO Quick Star Drift Method of Polar Alignment

CONTENTS

KEYPAD●VERSION●4.17●

Version●4.17●Release●Notes●-●10-20-08●

Special●Notice●to●Mach1GTO,●1600GTO●and●3600GTO●Owners●

Summary●of●Remaining●Keypad●Issues:●

Eastern●Longitude●Values●●

Western●Longitudes●with●Eastern●Time●Zones●●

Incorrect●GMT●Offsets●When●Polling●the●Mount●from●the●Keypad●●

Western●Longitudes●at●Time●Zone●Zero●●

Eastern●Longitudes●and●Time●Zone●12●●●●

Eastern●Longitude●Limit●●

The●International●Date●Line●●●●●

Fractional●Time●Zones●●●●

COMMAND●LANGUAGE●/●TROUBLESHOOTING●UPDATE●

Motor●Stalls●in●GTOCP1●and●GTOCP2s●with●the●E1●or●KE1●Chip●

Horizon●Check●in●the●Servo●

Variable●Tracking●

REVISED●GTO●QUICK●STAR●DRIFT●METHOD●OF●POLAR●ALIGNMENT●●

GTO●Quick●Star●Drift●Method●of●Polar●Alignment●Quick●Reference●Sheet●

KEYPAD VERSION 4.17

Version 4.17 Release Notes - 10-20-08

● ●

Version 4.17 replaces v.4.16 from 7-7-08 which had a bug that caused occasional random freeze-ups during

initialization of the mount, especially when resuming from Reference Park 1.

Version 4.16 replaced v.4.15 from 3-24-08 which had a bug that only affected older keypads - Serial numbers

● ●

1490GTO and earlier.

● ●

Eastern Longitudes●●●The●accuracy●of●eastern●longitude●values●that●are●sent●to●the●mount●has●been●improved●by●

including●minutes●in●the●calculation.●●●We●are●unable●to●add●seconds●into●the●calculation●at●this●time,●due●to●memory●

space●limitations●in●the●keypad.

● ●

Eastern Time Zones When Polling the Mount●●●●The●3=Get●Time/Loc●FrMnt●command●(how●you●"poll"●the●mount)●

now●returns●correct●time●zone●values●for●people●in●eastern●longitudes●using●the●GTOCP3●control●box.●●(GTOCP1●&●2●

control●boxes●already●returned●the●correct●time●zone●values●in●version●4.12●and●continue●to●do●so●in●version●4.16)

● ●

Shipping Notice●●●●Because●these●changes●only●applied●to●eastern●longitudes,●a●small●number●of●keypads●with●v.4.12●

were●shipped●to●US●addresses●after●the●March●24,●2008●introduction●of●v.4.15.●●●A●larger●number●of●keypads●were●

also●shipped●with●v.4.15,●which●contained●a●bug●that●only●affected●older●keypads●(S#1490●and●earlier).●●●Because●this●

bug●only●affected●older●keypads,●it●was●of●no●consequence●to●these●new●keypads.●●●That●bug,●however,●was●fixed●

with●v.4.16●which,●unfortunately,●had●its●own●problem●during●initialization.●●Keypads●shipped●between●March●and●

ASTRO-PHYSICS

GTO KEYPAD

Version 4.17 Addendum

December●18,●2012