To power up the camera to check its winding , rewinding , flash functions were normal , and found the reason is not open the shutter .gBMservice manual download site
Disassembly and overhaulgBMservice manual download site
1 Turn the camera on , loosen and remove the camera bottom a black screws , remove the front following a flash bracket black screws , open the battery compartment cover , loosen and remove the internal three black screws. Turn the camera on the back cover , loosen and remove the back cover of the switch at three black fixing screws , remove the viewfinder spring , so when the bomb off before removing the cover. Then use a screwdriver to carefully lift force the camera back, the bottom cover over the camera from the tripod and remove the nut at the front of the camera cover , this time inside the camera as a whole exposed.gBMservice manual download site
 gBMservice manual download site

2 Unscrew and remove the flash bracket below a black rear retaining screws , then remove the cover.gBMservice manual download site
3 Gently pry the lens firmly in front of decorative plates , loosen and remove the two fixing screws around the lens , remove the top of the iron in the fixed lens fixing screws and remove the spring connected between two metal plates , again remove the lens and lens hood can be seen inside the two shutter electromagnet. The two shutter blades of the shutter to control the exposure . Removing the root cause of this failure was found that the original of the shutter by a wire to the solenoid is energized to achieve shutter open exposure, lead break now , it can not open the shutter.gBMservice manual download site
4 The camera which wires are short and rather special , was soft ribbon . If I do not have this wire , can be considered replaced by the four wires soldered directly .gBMservice manual download site
5 . Looking for a small transformer and open , use one of a group of smaller , whichever is longer than 1 ~ 2cm long wire damage enameled four , the two ends of the line to paint and lining of tin and set aside.gBMservice manual download site
6 . Use of waste heat will damage the next iron wire welding and clean with alcohol here , with one end connected to the solenoid cut with scissors directly from the roots , to connect with the stand of the four corresponding solder wire . Then carefully check to make sure the correct welding wire , and then each part by the reverse order of removal Replace the test machine , the camera returns to normal.

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