Fuse cf 30d

As hobby photographer, and retired electronics engineer, I hope I can help you.
first, you virtually never find any fuse in a camera. Sometimes they build in a diode, to prevent damage when someone puts in a battery, the wrong way around, but most of the time you even can't put in a battery the wrong way around. If in your camera a pin from the CF connector caused a shortage in the camera, the connector should be replaced, but sometimes this shortage can cause extra damage, because voltages can come on places that can't handle this. A chip can die. Only to find out, when you replaced the connector and try to switch on the camera again. If you try to find some pictures of the inside of a DSLR, you can see that the "board" actually is a flat cable, with tiny chips connected. It is almost impossible to replace the components on that.
I know Canon certified repair centres, deliver good jobs and have original spare parts. But you always can ask what it will cost in advance and decide if you want to go on.
On the site ifixit dot com you can see how to repair a camera. I'm not sure your camera is opened there too, but you can get an idea how it looks inside.
Although a 30D still makes good pictures, perhaps you should consider to start saving up for a new one?

Even though there is a screen on the back of the camera the 30D is not capable of "Live View"

You can view your menus and pictures after they have been made not live view.

Hello

The issues you are running into are indicative of two possible issues.

First, the memory card may simply be bad. But before you purchase or try another memory card, you need to look for the second possible issue. The second issue, which is typcially more common, is that inside the card slot on the camera, there are pins, it is possible that one or more of these pins has become bent or damaged. If you look inside you can usually see a pin or pins out of alignment or bent over. If that is the case, the camera will need to go in for service.

If you have dirt on the sensor, it can be cleaned using special products. If you Google the words "how to clean an SLR sensor", you will find sites that explain the procedure with pictures and places where you can order the supplies needed. This is much less expensive than trying to replace the ccd sensor.

None of this sounds good. I would start by checking the condition of the pins in the CF card slot. A small light and a loupe will help. If any of the pins are damaged, bent, or even missing, then the camera may have had a short circuit and blown the internal fuses. Neither the pins or the fuses are user replaceable.

Bent/broken card reader pins. Take a flash light and look inside the card reader. There you'll see two rows of pins, 1or 2 will be bent (common problem).
Needs repair service.

A more appropriate product is Suntax DRF14C for Canon 10D, 30D.
http://www.suntax.com.sg/DRF14.html

I seem to recall hearing that the power switch can be a problem on the 30D .. I'm not going to suggest you take it apart to clean the contacts .. better go to a Canon Dealer I think ..

ERR 22: CF DRIVER
DESCRIPTION: This error occurs when image data cannot be written to the CF card. This error can occur when the CF card is not fully seated in the camera or if the D30 does not detect a card-ready signal within a specified time limit or when the CF card is not usable because it has been corrupted or physically damaged. It can also occur when the camera's battery level is insufficient to completely write the file to the CF card. REMEDIAL MEASURE: Use the DC Coupler or recharge the battery first. If the error continues to occur with sufficient power available to the camera, check that the CF card is properly inserted. If that's not the problem, then try replacing the CF card. If that does not solve the problem, have the EOS D30 and one of the CF cards that is causing the problem examined by a qualified service technician.


Got this from here: Digital Outback Photo

I also had this problem.
Try to remove the battery for more than 1 minute.
Also try to remove the CF-Card for more than 1 minute.
For me this only resolved the problem for 5-10 pictures.
Then I had to remove battery and CF-Card again.
The only real solution for this problem is to give the lens to repair.
Because this problem is caused by a wrong adjustment of the lens aperture.