Introduction
If the flash doesn’t go off despite the flash being enabled in the camera settings then it is possible the flash capacitor or fuse has failed. Use the following guide to replace the flash capacitor or the flash fuse.
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Unlock and open the battery compartment on the bottom of the camera.
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Remove both the battery and SD card.
Demander à FixBot
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Remove the four indicated 3.0mm long black screws from the bottom of the camera and the viewfinder housing using a PH0 Phillips screwdriver.
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Remove the four indicated 6.0mm long black screws using a PH0 Phillips screwdriver.
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Remove the viewfinder eye cup by pulling up and out from the bottom to separate the locking clips from the camera.
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Remove the two indicated silver 3.5mm long screws adjacent to the viewfinder screen using a PH0 Phillips screwdriver.
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Use an iFixit opening tool (or similarly long and thin object) to insert into the gap between the two camera halves and pry the camera apart from the top.
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Remove the two indicated ribbon cables before separating the two halves of the camera.
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Using a flat object, pry open the black tabs above the ribbon cable connectors by gently pulling away from the motherboard.
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Remove the 4 indicated flex cables from top of mainboard
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Remove the indicated small flex cable from top of mainboard.
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Remove the 3 indicated flex cables from the bottom of the mainboard.
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Remove the 4 indicated red 3.0mm long screws from the corners of mainboard using a Phillips PH0 screwdriver.
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With the eyepiece facing away from you, pull up on the main PCB from the left side and then pull it away from the chassis.
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There is a plastic locking tab on the bottom of the camera that holds the mainboard PCB.
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Use a PH0 Phillips screwdriver to remove the 3 indicated red 3.0mm screws from heat sink shield, then remove the heat sink.
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Use a PH0 Phillips screwdriver to remove the two indicated black 6.0mm long screws from the top of the camera, underneath the flash mechanism.
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Remove the indicated black 4.0mm long screw from the top of the camera
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Remove the three indicated silver 5.0mm long screws from the back of the camera and the right side using a Phillips PH0 screwdriver.
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Remove the front grip from the camera by pulling it forward and out.
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Remove the indicated black 4.0mm long screw from the side under the front cover using a Phillips PH0 screwdriver.
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Remove the indicated silver 5.0mm long screw from under the front cover using a Phillips PH0 screwdriver.
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Lift the top unit away, separating it from the rest of the unit.
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Pull the top panel away from the rest of the camera to reveal the flash wire and plastic cover.
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Use a spudger (or other small prying tool) to release the locking tab on the plastic cover.
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Pull the flash wire out under the plastic capacitor PCB cover. At the same time lift the cover away.
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Remove the two indicated red 3.0mm long screws using a Phillips PH0 screwdriver.
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Lift away the flash PCB.
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Determine if the capacitor or the fuse has failed. Using a Capacitance meter measure the capacitor, it should report a value of 130µF.
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If the capacitor value reported is close, then use a voltmeter with continuity testing to probe the fuse. If there is no continuity, then the fuse is broken.
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Outil utilisé dans cette étape :Desoldering Pump$3.99
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Heat and remove the indicated solder on the two capacitor contact points.
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Pull the flash capacitor away from the PCB.
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Outil utilisé dans cette étape :Tweezers$4.99
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Remove the solder on one side of the fuse.
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Heat the solder on other side and pull the fuse away.
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To reassemble your device, follow these instructions in reverse order.
Annulation : je n'ai pas terminé ce tutoriel.
2 autres ont terminé cette réparation.
Équipe
Oregon Institute of Technology, Team S2-G8, Lancaster Spring 2019 Membre de l'équipe Oregon Institute of Technology, Team S2-G8, Lancaster Spring 2019
OIT-LANCASTER-S19S2G8
4 membres
40 tutoriels rédigés
7 commentaires de tutoriel
My G7 can’t turn on anymore. I tried to connect a DMW-AC8 Adaptateur secteur but after that, it never works again.
So I think it’s the fuse ? If it’s that how can I buy a new fuse ?
Apologies for the delay, I’m one of the students who worked on this guide.
Unfortunately I believe your problem is likely something else. This guide relates specifically to the flash subsystem, so if the fuse or capacitor mentioned here were the problem I believe the device would still power on (though the flash wouldn’t work).
Hi i have the same issue than the first coment
My camera dont turn on and isnt the motherboard, i know because i buy a replacement and didnt work either.
So you have some idea about what it is?
Excuse my english.
I have a G7 that would not turn on, after replacing the Capacitor with one from another broken camera that I had laying around, was able to get it to turn on 2 or 3 times and while it was turned on it worked great.
The other capacitor had a smaller uF Rating (84 vs 130 in the original)
After leaving it turned of for a bit it would not turn on again.
I then opened it up again, discharged the capacitor and same thing happened, it worked again for a few times and as before stopped working.
Not sure if there is something with the resistance of the other capacitor that is different than the original. For now I ordered one that is a similar model but also smaller size, maybe that will help.
It's pretty obvious from my experience that this fuse is not only for the flash subsystem cause it is in line with the V+ connector from the battery, and all the power needs to go through this fuse, or the V+ must also connct to the pcb on the other side of the board to provide the main power..
But, as far as i can see, that's not the case cause there is a IC there and no connections to the battery connectors, and no pins of the battery connector come through the board on the other side, so the chance that this is a three layered board is very slim as well.
i think that if you try to power on the camera without this fuse, it will refuse to go on.
