Modifications apportées à l'étape #29
Modifié par Ben Moores —
Modification approuvée par Ben Moores
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Lignes de l'étape
| + | [title] The Fault |
|---|---|
| + | [* black] Inspecting the flex-pcb shows the likely fault. Over time the flex-pcb has developed a weak spot, which then becomes the point that flexes the most, causing it to weaken even further. |
| + | [* black] Flexing the cable shows that this spot is bending at a sharp angle. |
| + | [* icon_note] Note how the main ribbon splits into two, one side going to the motor and the other to a sensor. The narrower ribbons could also have a fault as they also flex (orange), but in this lens the fault occurred during flexing of the main ribbon (changing zoom as the barrel elements move), not as focus changed. I will only be repairing the main ribbon. |
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