Firstly check that the motor is fee to turn by hand . Next check the error on the motor drive under the walk boards you may have a faulty drive...
Hi Is the faulty sensor for the left side lay? Try removing the fiber lead from the amplifier and you should be able to trigger the amplifier with...
Can you send me photos of the control boards below the control panel The paper thickness is adjusted by a motor with a position feedback pot...
You do not need to worry about the charge circuit for the super cap this is not where the problem is 4.6V is fine. Did you check that the display...
If the error clears after 3 hours then it could be a power supply check the display in the feeder and delivery there is RS232 communication...
I assume that you can only inch forward and rev on the 5th unit when on tuneup. If this is the case there is a problem with the safety circuit on...
The device you have circled on the board is a super capacitor it is used to backup the CMOS RAM and is charged during normal operation its working...
Hi I assume the problem is with the AMR paper thickness Can you adjust the sheet sizes on the feeder and delivery? Is the display on the delivery...
Hi What is the problem with the tachogenerator? This is similar in construction to a DC motor so to has carbon brushes you should be able to check...
Hi again Can you send me a clear photo of the adjusters on the drive, from your previous photo I can see there are marks on the adjusters also...
Ok I understand. If the original Tacho had no output then the motor would run at full speed so it must be faulty. You will need to test the new...
Hi I am trying to understand your problem, if there was no problem before you changed the tachogenerator, why did you change it? The...
Hi what was the original fult before you changed the tachogenerator? Does the voltage to the main motor armature change with the speed changes?...
Can you send me the pages from the circuit diagram with the main motor and drive with the preset speed settings? This may help with the diagnosis
The first you need to do is get the main motor and press to run at a steady speed. What was the original fault with the press? If changing the...
