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Gallery >> Astronomy >> Astronomical DIY Projects >> DIY Losmandy gear cover >> Dead optical encoder module
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DIY Losmandy gear cover

1. Damaged cable 2. Dead... 3. Distance... 4. Distance... 5. Glue ... 6. img_6842 7. Machining ... ... 11. Result (5)

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Date: 12/31/2008 Views: 94

Dead optical encoder module

Gallery Astronomy Astronomical DIY Projects DIY Losmandy gear cover
Date: 07/07/2005
Views: 81
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Title
  • Optical encoder module
Info
  • The next catastrophe: After having repaired the damaged cables, I accidentally swapedthe dec motor-cable with dec encoder-cable.
    Result: Dec-encoder killed :-(
    Diagnosis after some research using an oscilloscop: B-channel of optical encoder moduleis dead. Luckilly I found an HEDS-9140 on my workbench. Without starting any research,if the HEDS-9140 will do, I "closed my eyes" and replaced the the HEDS-9100 with it. Workingfine!
Info
  • Die nächste Katastrophe: Nachdem ich die beschädigten Kabel repariert hatte, habe ichdie Anschlussleitungen Deklinations-Motor und Deklinations-Encoder vertauscht.
    Resultat: Deklinations-Encoder sagt nichts mehr :-)
    Nach einer kurzen Messaktion mit einem Oszilloskop steht fest: Der B-Ausgang des optischen Encoder Moduls istdefekt. Zum Glück findet sich in einer Kiste auf meinem Schreibtisch noch ein HEDS-9140 aus einem alten Bastelprojekt.Ohne weiter Forschung, ob man den HEDS-9100 mit dem HEDS-9140 ersezten kann, wird der HEDS-9140 eingelötet. Funktioniert prima!

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Photo Properties

summary details
Make Canon Model Canon EOS 10D
Aperture Value f/4 Color Space sRGB
Exposure Bias Value 0 EV Flash Flash, Auto-Mode
Focal Length 40 mm ISO 100
Metering Mode Multi-Segment Shutter Speed Value 1/60 sec
Date/Time Thu 07 Jul 2005 10:31:29 PM UTC

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Photo Properties

summary details
Make Canon Model Canon EOS 10D
Aperture Value f/4 Color Space sRGB
Exposure Bias Value 0 EV Flash Flash, Auto-Mode
Focal Length 40 mm ISO 100
Metering Mode Multi-Segment Shutter Speed Value 1/60 sec
Date/Time Thu 07 Jul 2005 10:31:29 PM UTC

  



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