Sensors were cleaned, cassetes checked (read our previous posts). I do not know what do you mean by Nip.
We do not use msn or yahoo massenger, but we can set up msn on wish. We use Skype. our nick is vogar_wojciech
We can also communicate in German if easier. No offence.
Wojciech
You are making this harder than it is. As Vlad and I mentioned, the motor is probably weak and needs replaced. If you want to check out the SDM Bd., just swap them. They are the same. Being an AV25, this could be the original motor and therefore is the most likely problem.
And I want to repeat my second supposition:
flat bent spring under T/U Cassette Motor became weak and Motor and Cassette Wheels have a loosen contact or even more - broken T/U Motor plastic holder.
Last edited by VladCanada; 11-10-2008 at 10:34 AM.
My online developer of avantra 25, the agfa G&J 20/25 still write into display g1 ATB v03 LUTH and not start.
What can be the problem?
With regards
wrote also at paologll (at) gmail.com
My online developer of avantra 25, the agfa G&J 20/25 still write into display g1 ATB v03 LUTH and not start.
What can be the problem?
With regards
wrote also at paologll (at) gmail.com
Problem in CPU board or ATB board,I can repairs the board
I think you guys are all getting beyond yourselves. The fact that the original poster did not mention any error reporting means that the take-up cassette core is being driven correctly and there are no problems with the sensors. Thing to look for is the operation of the core. Take the lid off the cassette and observe the motion while performing a "feed and cut". The core should rotate then come to a stop. The 2 halves of the core should stay closed at the top, which means that the bottom of the core is open to accept the film. If the one half of the core falls down, the bottom of the core will be closed and film will not go into the core. In this case, there is something defective with the clutch or the clutch springs. Sometimes the hub of the clutch its self does come loose. It is easy to repair with 2-part epoxy. As the film goes into the cassette, the core will rotate in the opposite direction, thus closing the bottom of the core, the rubber(?) band will grip the film and the film will wind onto the core. This rubber band does become old and loses its "tackiness", which means that the film will slip out of the core and the film will not be wound onto the core. In this case, I have repaired this problem with heavy duty office elastic bands, available at any good stationery store. Concerning the motor losing strength, I have not seen this before. It either works or it doesn't. Just a note here. The flat spring tensioning the motor is rather critical. Too much tension can cause even a good motor to stall. Too little tension will cause slippage between the motor wheel and the cassette wheel. AVDiag does have a current control to the motor, this should be set up so that the motor "labours" when the film is being would onto the core. If the current is too high, the motor wheel will be forced to slip in relation to the cassette wheel and cause the "tyre" on the motor wheel to be damaged beyond repair. Also, just a word on AVDiag, it can only be run on pure DOS. A W95/98 laptop can be used booted up directly into dos. Hope this helps.
Gerald.
Thank you for the extensive reply. We did the test with the opened lid. We have had errors concerning the proper grabbing of the film by core clams. But after reducing the speed of core rotation and adjusting the tension we have eliminated that problem. But still we had the problem with propoer winding of the film on core. It does have the connection with the motor. After raising the motor current the problem diminished. We still do not know how to adjust the strenght of the motor spring. We also will follow your suggestion to add extra rubber band on core.
Wojciech
Linear Mode
