Difference between revisions of "GX10/K10D Repair"
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The heat came from a motor driver IC which seem to control the GX10´s two motors. | The heat came from a motor driver IC which seem to control the GX10´s two motors. | ||
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Revision as of 10:49, 13 October 2011
I currently got a non working Samsung GX10 digital camera (DSLR). It turned out, that the GX10 is almost the same camera as the Pentax K10D. This promised a huge variety of how to´s and documents. Unfortunately I could not find that much information online.
The Defect
The camera refuses to take any pictures. When pressing the shutter release button, a rumbling noise can be heard and felt. It´s prduced by the moving SR block which carries the CCD sensor and reduces shocks while exposure. This noise is normal but hard to hear in a functional camera, because the mirror/shutter is much louder. Not in this faulty camera: The mirror is not moving a bit when pressing the release button. No mirror or shutter movement, also no noises from a blocked motor or electric magnet. The camera does not show any error messages. Everything works as normal but taking a picture is impossible.
OK, let´s take a look inside ...
Finding The Reason
I removed the bottom of the camera´s housing first, then the rest of it. Of course I touched the supply voltage for the flash which can be quite painful. Discarge the flash before proceeding! A good spot for discarging is a solder pad near the view finder (see picture). I used a 1k resistor against the chasis ground.
I pushed the release button several times and noticed that the lower right corner of the main PCB was getting very hot. What´s wrong with it?
The heat came from a motor driver IC which seem to control the GX10´s two motors.
