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Old 29-06-2020, 10:02 PM
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mswhin63 (Malcolm)
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Help with my 450D

Hi All,

My 450D showed one it bugs with Antivibration pause in APT and now the USB port on the camera has died.

Windows still recognises it but the camera remains "BUSY" indefinitely. I have tried to:
  1. Left it to sit without power for a while.
  2. Cleared all the settings.
  3. Updated the Firmware (Simply re-installed the firmware)
  4. As a last resort removed the Motherboard (thinking there was an internal battery)

Nothing worked and the effect is spread across multiple computers.

Essentially I forgot to turn off Mirror Popup from the camera settings before setting the anti-vibration pause to "0".

Any thoughts, The camera itself works fine but no good for Astronomy picture using APT or any other program at this stage. Am considering getting a new motherboard then save up to buy a CCD.
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  #2  
Old 30-06-2020, 07:09 PM
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redbeard (Damien)
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I think there is a setting in the camera to select the USB mode. Can't remember off the top of my head but somewhere in the settings there is a section where you choose between 2 different USB modes. If it's there give it a go.

Good luck.
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Old 30-06-2020, 10:23 PM
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mswhin63 (Malcolm)
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Quote:
Originally Posted by redbeard View Post
I think there is a setting in the camera to select the USB mode. Can't remember off the top of my head but somewhere in the settings there is a section where you choose between 2 different USB modes. If it's there give it a go.

Good luck.
Nice thought but no the isn't a setting like this, maybe newer cameras.
Failing directly after taking so many images suggests the firmware could not handle the settings between the computer and camera.
How it failed is not my line of expertise.
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Old 01-07-2020, 12:29 AM
glend (Glen)
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So the camera works but just can't communucate via USB?
Now in removing the motherboard you had to disconnect the small USB connector board, I bet your problem is there, or in the small ribbon cable connection to the motherboard. It is easy to think that ribbon cable is connected when it is actually not fully inserted. Also check that the little earth bar is in place and has continuity.
They are pretty old cameras now, not worth spending money to fix them imho.

I would bet the camera did not need to be opened up at all, simply removing the battery and memory card for several hours would likely have reset whatever was hung. But yeah i suppose it is possible the usb board got fried by a spurious signal but it is unusual.

Finally, ditch the APT and use BYEOS, never had problem with that purpose built Canon software.

Last edited by glend; 01-07-2020 at 12:51 AM.
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Old 02-07-2020, 10:39 PM
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mswhin63 (Malcolm)
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Quote:
Originally Posted by glend View Post
So the camera works but just can't communucate via USB?
Now in removing the motherboard you had to disconnect the small USB connector board, I bet your problem is there, or in the small ribbon cable connection to the motherboard. It is easy to think that ribbon cable is connected when it is actually not fully inserted. Also check that the little earth bar is in place and has continuity.
They are pretty old cameras now, not worth spending money to fix them imho.

I would bet the camera did not need to be opened up at all, simply removing the battery and memory card for several hours would likely have reset whatever was hung. But yeah i suppose it is possible the usb board got fried by a spurious signal but it is unusual.

Finally, ditch the APT and use BYEOS, never had problem with that purpose built Canon software.
The USB failed before removing the motherboard. I only did it to quickly reset any bit errors.

I have found out that this is a common problem with the 450D using mirror flip and not with just APT.

BYEOS doesn't have enough future support for my needs. I know this issue was my problem as I ignored the warning when changing the settings. Essentially the DIGI III firmware in the earlier 450D's does not like a pause of "0" while the mirror flip is on.

Will be a good daytime camera with SD card, my next purchase will be a higher-end mono or colour that will start for DSO/planetary then upgrade.
I have a new plan for this although may buy a new MB and Audio Board as it is called if the purchase takes too long. Tax time is coming so I am hoping for a good outcome.
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Old 03-07-2020, 07:23 AM
Startrek (Martin)
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Have tried a new USB cable from camera to computer ??
I have a 600D running BYEOS and have gone through 3 cables in the last 12 months
USB cables are becoming more of an issue with reliability lately
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Old 03-07-2020, 10:06 AM
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mswhin63 (Malcolm)
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Quote:
Originally Posted by Startrek View Post
Have tried a new USB cable from camera to computer ??
I have a 600D running BYEOS and have gone through 3 cables in the last 12 months
USB cables are becoming more of an issue with reliability lately
Yep, have three cables. My computer recognises the connection as Canon then it hangs in busy indefinitely. Happens on multiple computers.

Anyway CCD or specific Astro CMOS cameras are my next option.
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