Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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David
 
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Default Canon DM-MV20E mini-dv camera problem

Hi All,

I'm attempting to repair the above model camera.

The initial problem with the camera was that it wouldn't zoom using the
camera control. After spending time on the camera, I have come to the
conclusion that fault is not confined to the zoom switch.

There is a pcb on the outer side of the cassette door which is protected by
an outer rubber cover. This PCB doesn't appear to be working (pcb is about
1.5" in size). Another reason for this diagnosis is that the camera
constantly asks for the timezone etc to be reset whenever the rechargeable
battery is taken off the camera. On the PCB there is a lithium battery
which is measuring 2.6v (I'm not sure if that is the voltage that it should
be), a manual focus control with an LED and another function button. None
of these buttons appear to be working. I can't see any obvious cracks in
the printed cable that runs from the small PCB into the main camera pcb.
The printed able is reinforced in one section so that the cassette door can
open without bending the cable too much, this also appears to be ok.

Has anyone encountered this problem before?

Any points would be greatly appreciated


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