Question about Sport & Outdoor - Others
Hi there, I was hoping someone there might be able to help me troubleshoot my issue with my above machine. I have had this now for 3 - 4 years. The issue is that my monitor displays "E I" and beeps at me. It does not let me get into any training modes whenever I try, and sends me right back to a blank screen saying on it "E I" and beeping. Please help me troubleshoot this? Thanks kindly.
Well my Acer AL1711 finally gave up in as much as the screen flashed briefly at switch-on then went blank, regardless of brilliance setting so I decided to take it apart and try to fix it. The good news is that IT WAS NOT THE LAMPS that I feared in my earlier post and was easier than I had ever dreamed! First allow a good period of time for the internal components to discharge before starting. Remove the plastic clip at the base hinge to expose 4 screws - remove all four to release the stand. Then remove the 4 black cross head screws that appear to hold the back on, they do but there is more to do. Carefully tease the silver surround away from the case, best to start in the centre of each side and finish at the corners. There are many plastic clips to release before the surround comes away. Now remove the four cross head screws holding the pushbutton switch circuit board. The whole assembly can now be removed from the case and reveal a metal cover held by 2 SHORT (remember that!) SHORT! threaded machine screws. These once removed will allow the case to be slid away from the holding tabs located down the edges of the cover and removed. Now unplug the connectors from the board that has the mains input connector attached to it. You will see a heatsink with 4 electrolytic caps above it. Silly ACER designers, have placed the capacitors so that they get all the heat from the heatsink! Yes folks, the capacitors are above the heatsink when the monitor is in its normal operating position! So all the convected heat dries them out, nice. So the fault is due to a silly design error! Replace all 4 capacitors, two of them are 1000uF at 16V and the other two are 470uF at 16V, all radial types. Try and get capacitors with the highest operating temperature, at least 105 degree types and remember these are polarised, make sure you connect the capacitor + wire to + on the circuit board. You should have no problems with re-assembly but don't put the wrong screw where the short ones went or you are liable to see it come out of the screen LOL! Most important - - Don't forget the screw holding the earth tag to chassis. Good Luck, you will be amazed how much brighter the screen is now!
Posted on Mar 16, 2007
SOURCE: problem in monitor
you need to either buy a new inverter board, or if you are competant with soldering onto boards, you need to replace the c5707 transisters at points q740, q739, q760 and q759 on the larger board. best place really for the replacement c5707s is ebay
Posted on Aug 27, 2007
The green power light indicates that the monitor is receiving from the
computer correctly. I suspect it is going into high voltage
shutdown. There is a safety circuit that monitors the high
voltage and shuts the monitor down if it sees anything amiss. So
the monitor comes on and then shuts off. High voltage problems
are generally not worth trying to repair. Another example of a
worthless safety feature. High voltage failures are not
dangerous, and adding the safety circuit just kills the unit when it
may have some life left or worse, sometimes it is the shutdown circuit
itself which fails!
Hope this helps.
Posted on Jan 10, 2008
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