CompuServe Thread

#dead mouse

15 messages in this thread
#75933From: Edward HanstNov 4, 1992 11:22 AM
Hi everyone, I am having a problem with my A2000. Suddenly my mouse stopped running. I removed all boards from the machine with no luck. The mouse buttons are still working but the pointer is not moving. I did try two other mice with no luck. I flipped my 8520's no luck. I put in new denise and Paula no luck. Has anybody had this problem. I am on a deadline and there are no dealers on the Island. Someone in Miami quoted me almost $1000 for a new board. That is almost as much as a new machine. And I repeat I'm on a deadline. Does anybody have any suggestions as to where the problem might be. Any help will be appreciated. Thanks alot Edward Hanst (Toasting in SUNNY CURACAO)
#75953From: David ArtNov 4, 1992 1:51 PM
Edward, You might try a program to switch the mouse to the second port, just to see if that might work. I can't recall the name offhand, but, it should be either in this forum, or in the AmigaTech Forum if it's still online here. David
#75964From: Edward HanstNov 4, 1992 2:38 PM
Thanks I will look for the program around here. But I think that both ports are dead. There is no voltage on pin 7.
#75985From: Jim SteeleNov 4, 1992 6:42 PM
Edward, there is a 'pico fuse' in the 5v line to the mouse. It sounds like that fuse is blown. The fuse is labeled F1 and is just behind & to the left of the first mouse port. Look carefully, the fuse looks more like a resistor than a fuse. If you're in a bind, there are keyboard equivalents to the mouse. Hold down the right Amiga key & use the cursor arrows to move the pointer. It's slow, but it will get you by. Jim
#76072From: Dave CinegeNov 4, 1992 11:53 PM
no voltage…it must be a fuse….test F1. It's a little green fuse about the size of 1/4w resistor Dave Elite MicroComputers 908-541-4214 – via Whap!
#76071From: Dave CinegeNov 4, 1992 11:53 PM
Sounds like you blew a fuse, resistor, or cap. Check everything out with a MultiMeter. Also try this…boot a game disk that uses port 2 for a joystick and see if the joystick works…that will confirm that something is blown only on port 1. Dave Elite MicroComputers 908-541-4214 – via Whap!
#76085From: Don Curtis/SYSOPNov 5, 1992 12:35 AM
Edward, You don't need a new motherboard…you need a 10 cent pico fuse. It's on the motherboard, labeled f7 very near the mouse connector itself. Don
#76086From: Don Curtis/SYSOPNov 5, 1992 12:36 AM
Ed, Whoops…make that F1 not F7 Don
#76433From: Edward HanstNov 7, 1992 3:31 PM
Thanks alot guys you were right. I did not get the fuse at my local electronics store but I shorted it for the time being. My Amiga is rendering away again. I hope to be done by tuesday. Then I will see about that fuse. I was already looking into a new motherboard. But it would have taken to long to get down here to the island. Not to mention the $700. THanks again. Edward Hanst (Toasting from SUNNY Curacao)
#76621From: Dave CinegeNov 8, 1992 6:15 PM
Watch your static around the CPU….thats what usally blows that fuse…may even want to ground your mouse mat if it happens again. Dave Elite MicroComputers 908-541-4214 – via Whap!
#76749From: MICHAEL R. GROVENov 9, 1992 1:13 PM
I just caught the tale end of this. I just lost the xy movement of my mouse and its not the mouse. The joystick works fine in either port But the mouse won What's this about a fuse?
#76781From: Edward HanstNov 9, 1992 5:46 PM
Michael, I was having this problem. A fuse was blown on my motherboard. It is lab labeled F1. Check pin number 7 on your mouse port it should have 5 volts on it C Check page F-4 in your manual. If you don't have 5 volts you must replace the green fuse. This happened to me because I plugged in a peripheral while my computer was on. good luck.
#76860From: MICHAEL R. GROVENov 10, 1992 9:33 AM
Done already. The schematic doesn't show inline fuses on that line. Can I take it that all the 5v lines have an inline fuse. By the way, I blew mine connecting the doorbell button (I leave the compute on 24 hours and my wife wanted a doorbell, so I hooked up the joystick fire button). works fine now
#76926From: Edward HanstNov 10, 1992 9:13 PM
YOU ARE RIGHT. NOTHING ON THE SCHEMATICS. I LOOKED AT THE MOTHERBOARD AND COUNTED ABOUT FOUR OF THEM. IN THE SERIAL AND PARALEL PORT AREAS. I AM GLAD THEY WERE THERE. IT SAVED ME LOTS OF TIME AND MONEY.
#76937From: Dave CinegeNov 10, 1992 10:48 PM
F1 (1 amp micro fuse) controls the 5 volt line to your ports…it's right behind port 0. Looks like a little green resistor. Dave Elite MicroComputers 908-541-4214 – via Whap!