Question about HP Photosmart M407 Digital Camera
You said that you had replaced a flash board in this camera to fix a flash not working and batterires not charging. I have those problems and have a docking cradle for recharge that the camera is in all the time it is not being used. I have replaced this camera but would be interested in fixing it rather than just throwing it away. Can you let me know where I can get the flash board and how you went about it. I read your reply to someone else that you could give them instruction if they wanted. Thank you for your help.
Go search for this ebay item
350138808473 and purchase the flash assembly for the m407. Other options is to search broken m305, m307, or m407 cameras (the components are interchangeable) that have working flashes. The batteries I suggest purchasing new rechargeables batteries and try a fresh charged pack. It may not be a bad idea to also purchase a AA battery recharger. You will need precision screw-driver set and electrical tape.
There are six screws on the outside of the case. Remove the six screws and gently pry the case open and remove the camera from the case. I found that placing my thumbs around the Tripod stand and opening as if it were a **** works.
The next step is to remove the LCD and the button board. What holds them in place are two small screws next to the bottom of the LCD. Remove the screws and small aluminum frame around the LCD. Using a small flat-head precision screw driver, gently pry the LCD loose from the base that is soldered to camera main circuit board. The LCD should be hanging by the ribbon cable. Using the precision screw driver, gently loosen the prongs that hold the LCD in place. After the LCD has been remove, remove the button board, which should be loose (it snaps into the main circuit board and it is taped to the flash assembly. Try to have as much of the tape on the button board after removal. You can use packaging tape to replace the tape.
WARNING: The flash assembly contains a 330 V capacitor. The flash assembly is covered with black electrical tape to prevent accidental contact to any expose metal. Contacting the metal will give you a good size shock.
The next step is to loosen the flash assembly from the camera. In the back of the camera, underneath the LCD and button board, there are three black screws that holds the battery chamber in place. Remove these screws, but the chamber is also screwed the flash assembly. Turn the camera around. You will see that there are three items attached to wires that you will have to either pry or snap off. The first is the switch by the battery door. The next is the speaker that is snapped into the assembly. The last is a disk that is sticked to the batter chamber (via an adhesive) Gently pry each of these loose (using a small flat-head precision screw-driver) and leave each component hanging from the wires.
There are two screws that attach the battery chamber to the flash assembly. You will need to look for theses screws underneath the black tape. The first one is easy because it the edge of the assembly. The second one is located in the middle of assembly and you will have to lift the tape to expose the screw. There is a third screw that holds the small valance of the flash bulb. This can stay on. Once the screws have been removed, the battery chamber should dangle out. (PS. This exposes the SD card slot if you need to straighten out bent copper prongs that prevents your card from being read.)
The assembly is plugged in to the main circuit board. This is located behind the capacitor (which looks like a battery.) Special care is require to wiggle or pry the open the plug to avoid damaging the plug from the flash assembly or from the main circuit board. I usually sit the camera on the table and stick the precision screw-driver in that area behind the capacitor and carefully pull the screw driver up. Once the flash assembly is loose, it should plob over to the overside, being held together by a copper foil that has been soldered to both the flash assembly and main circuit board. Try to leave as much of the copper foil behind with main circuit board as you tear the foil to fully remove the flash assembly.
Plug the good flash assembly into the slot on the main circuit board. Tuck the copper foil back underneath the tape. Screw the battery chamber back into place. Tuck back the battery door switch, speaker and disk back into proper location. Replace any black tape with electrical tape. Assemble the button board and LCD back into the main circuit board. Screw back in the alumnimum frame. Put the main camera inside the back half of the camera plastic case. Put the battery door in place (this may fallen off when removing the case. Snap in the front case and screw the case shut. Test the camera for functionality.
Posted on Jan 05, 2009
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