I have checked the f1 fuse and it seems to be ok. on the main cuircut board there are two places that look like they should have fuses or cuircuts connecting them and they don't, like a burned fuse. should they have a fuse? and could i as in one of the fixes solder a piece of wire in place to repair the cuircut? one of them is c122.
I experienced the same problem several years ago and tried the suggestion provided below. It worked and it is still working today.
Resolution by John Phillips!
Here are instructions posted by John Phillips on "FixYourOwnComputer.com:"
Steps I took - and it worked beautifully - display problem solved !!
1. Ease off the plastic facia that covers the control buttons - (no screws - it just clips on)
2. Remove the cross head screw that is seen to the bottom left of the display unit.
3. Flip display unit open - remove the cross head screw that holds the dark plastic support clip that is behind the unit and top right ish!!
4. Remove the display unit - unscrew the 4 small cross head screws that hold the display assembly together - NOTE THAT THE CONNECTING RIBBON RUNS THROUGH THE HOLE - I didn't make a note at first, and it took me ages to work out where it went when trying to re-assemble it !!
5. Mark the connecting ribbon so that you know which way up it should be, then carefully pull it away from the black connecting block - Re-assemble merely by pushing it carefully back into place.
6. On the circuit board you will see a large (ish) black Integrated Circuit - using a magnifying glass you will see a tiny soldered fuse marked F1 just to one end of this Integrated Circuit.
7. Using a single strand of clean copper wire ( a single strand taken from a multi strand piece of speaker wire is ideal) carefully solder it across the two terminals
8. Having a soldering tip small enough is vital if you are to attempt this - an ordinary tip is TOO BIG. I used a piece of copper earth wire (obtained from ordinary "Twin and Earth" electricians household mains wiring cable) I then wound it around my soldering tip and filled it down to a fine point.
9. Re-assemble - switch on - and if you have been careful and succeeded in this feat of micro soldering - you should have a realistic chance of having a fully functioning display once again.
You can go to www.compassmicro.com to check if theres an available blueprint of the printer
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