My Monolta Dynax 5D judders on startup, then the shake reduction display flashes then it wont take pictures or turn off. It just shows br1 in viewfinder display

if the battery is fully charged it could be that you switched off by error the display....
to turn on again see here:
Konica Minolta MAXXUM 5D Instruction Manual Display Button

two reasons for this are possible:
1) you changed the exposure compensation by mistake to minus something... - see below - change it again to +- zero:
Konica Minolta MAXXUM 5D Instruction Manual Exposure Compensation

2) you should have the ISO settings to auto:



Konica Minolta MAXXUM 5D Instruction Manual Camera Sensitivity iso And...

Try downloading the photos to a computer. If this doesn't work there may be a problem with the flash chip. If so, try reformatting it - that worked for me when I had a couple of photo storage locations that constantly put up garbage displays and produced file error messages on downloading.

inside of the camera are some parts, that can be broken or loose see the diagram, and proceed with common sense. God bless you

Try changing you card with other one and see what's happennig: if the camera is working properly then the card has issues.

CIAO

I have an 5D with the same problem, It looks like the Anti shake does not initialize properly, The only bypass I found that worked (except for a real repair) is to set the display light timeout for 5 seconds, The standby timout for 1 minute, Turn the camera off, and on again, Wait for 5 sec then the display goes blank, wait for 1 minute then the camera goes in standby, (light from CF card flashed red 1 time) Then touch any button to re-activate the camera and... voila... everything works, including taking normal pictures and the anti-shake !!! So it only takes a minute everytime to startup..

vibrating sounds, flashing shake indicator, shutter won't release...

It's a fault in the camera and has to be repaired at the shop, Sorry, I know it's not the answer you were hoping for, but it's a depressingly common problem on the 5d/7d forums.

vibrating sounds, flashing shake indicator, shutter won't release...

It's a fault in the camera and has to be repaired at the shop, Sorry, I know it's not the answer you were hoping for, but it's a depressingly common problem on the 5d/7d forums.

This is a known issue with a fault with the charged couple device CCD.  If you contact Konica Minolta / Sony in your city they should replace it as a recall.

It sounds like that's the first black frame problem that is a fairly common defect with the cameras, so much so that Sony is repairing it for free, for more info, see:

http://ca.konicaminolta.com/information/20070202/01_en.html

then go to:

http://eservice.sony.com/webrma/web/index.do to set up for service.