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Open the camera shell, with a multimeter resistance profile measurements telescopic lens with 4 solder joints, are not, the stretching band has open circuit. The decision and telescopic lens remove belt, steps are as follows: ¢Ù welding open expansion with 4 points; 1 screws fixed flash and lens sheet metal to unscrew, remove the metal plate and a spring; the dark chamber side, block bayonet component to take off the lens back; the entire lens and the telescopic belt. Because the telescopic belt only 4 wires, so the docking repair the telescopic belt.NhMservice manual download site
The telescopic belt is disconnected, expose copper with a small file the file open 1mm (each file a surface, can butt), first on the tin, and then the butt weld. Measured with a multimeter, about two sets of wire must be connected between the two groups, and should not be turned on. Confirmation of welding is correct, then the transparent tape wrapped firmly. After assembly, power test machine, the shutter blades turn normal, troubleshooting.
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