By the way, in this posting, mastersurf and Abdul Jalil is both me. Read my earlier postings to understand the problems first. Sony did not put he part number here but it states CHASSIS ASSY PWB, FP-406 SWITCH ROTARY Meaning I had three faulty parts. The main culprit is the chassis asembly. On the returned faulty parts, on the box, printed A-7096-426-A CHASSIS ASSY, LS DCR-TRV330 MADE IN JAPAN 908643 My cam is a TRV340E. So make sure when inserting the tape, do it carefully. Also do close the cover slowly and press where indicated. The chassis assembly consist on some switches activated by the moving levers. When closing or opening, the lever will open or close some switches. So that is why they say to remove tape, insert tape, remove battery, insert battery and on the cam. Hope fully when done repeatedly a couple of times, the switch surface becomes shiny again and contact is achieved to activate the switch. I believe that my faulty assembly sacing might not be really fauly and by simple adding some solder to the mechanical contact point, the contact is good again. Wonder why dont they use gold contacts. Also I do not see any misalignment on the faulry parts so i strongly suggest the swith/soldering on the chassis is to be blamed.

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