Yet another update.
The camera is working after that fuse was replaced. Man it was muuuuuuuch muuuuuch harder to replace than you may think. The fuse is tiny. I mean tiny tiny. I am going to put in more information hoping that it will help others who has the same problem.
Symptom of that blown fuse. I came across 2 cameras with that blown fuse. One has no display at all and another has display but when you connect the lens, it will not be in focus and after a few seconds turning on the camera, it will say lens error.
For the O fuse, I order from aliexpress. O is 2.5A fuse and the size is 0603.
https://www.aliexpress.com/item/10050043...
It is very small so you will have a hard time soldering it onto the board. It is located really close to other components.
The trick to put it on properly is:
- make sure you close all the latch on the back of the PCB for the connectors. If one snap, you are in big trouble. I mean biiiiig trouble.
- use leaded solder. non leaded one is so much harder to work with
- put solder on the pads first. However, make sure it is kind of flat so that you can place the fuse on it without sliding to the side.
- put alcohol around the area. The tension of the alcohol keep the fuse in place. That is the key
- place the fuse on the pad and align properly. Use heat gun on low speed or work station to heat up the fuse and solders. cover the rest of the area with metal plates if you can. You dont want any other components to move.
- when you think it is done, stop the heat and use a tweezer to try lifting the fuse. If it moves, they put it back properly and continue. Repeat the process until the whole PCB is lifted instead of the fuse when you lift it. The O fuse is the hardest one of the fuse to replace. For people who never solder before, you dont need to try. You will mess up the board for sure.
- The original fuse is glued on the PCB, so you need to use some force to remove it.
Hope it helps.
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Do you have a multimeter?
da Andrew S
Yes I do. What to measure?
da theflyingsquirrel
@flyingsquirel First, what is the voltage of the battery?
da Andrew S
The voltage measures 7.9V
da theflyingsquirrel