Question about Audio Players & Recorders
Hi, whenever i turn on my amstrad cpc464 all i get is a green screen with a black border. the computer was working ok before but i had to open it up to fix a sticking key. after i fixed it the computer still turned on fine but after a while the screen became scrambled and from that moment i cannot get it to display the proper screen when i turn it on. the monitor is fine as i have tested another computer through it. please can you advise?
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Posted on Jan 02, 2017
Hola Guate ;] display cable is probily loose. Seen this problem on another model. Don't know if it's the same for the V3, but you have to make sure the screen cables are well connected. this is how it goes with a different model: Open the back of your phone, and near the top right side is a cable that leads to the screen. Make sure it is fully in. If this doesn't work, open the face of the phone, carefully remove the metal peice that is on top, there are small white latches on the side. After that you should just see the red-brown cables of the screen. To the top right corner there should be a cable that looks alot like the one in the back. Make sure that is all the way in. Good luck, tell us how it went in there...
Posted on Jun 28, 2006
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
they normally turn off like this when they aren't receiving a video signal from the pc (same as when you turn off the pc). make sure that it is connected properly, and that the video output is activated. try disconnecting from the other monitor while its on and connect the problem monitor...if it still isn't working then there may be a problem with the cable or the monitor itself. Try another VGA or DVI cable. Hope this helps
Posted on Mar 30, 2008
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