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Description: :-? for your amusement and my frustration. I excitedly got my newly aquired Amiga A1000 running on an a recovered from the garbage old NEC Multisync II monitor only to find the picture was reversed & upside down :-o I'm open to any solutions.
Picture Stats: Views: 3599 Filesize: 222.47kB Height: 768 Width: 1024 Posted by: stewjw at February 23, 2005, 12:50:12 AM Image Linking Codes
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| yorgle Posts:165 | December 19, 2008, 06:53:54 PM I assume that by now you've fixed this, but just in case; the issue is with the windings on the picture tube. Rather than trying to rotate the tube or whatever, there are two sets of wires (usually red/black and yellow/blue, or something similar...) that are inside the monitor case that go from the analogue board to the coil windings on the tube. These are low voltage, but watch out for the flyback cable (goes to what looks like a suction cup on the tube) - that can hold a 10,000V charge on it after the tube's been unplugged. You can try to discharge the tube, but if you're very careful, you shouldn't need to. Look for the monitor winding feed wires. One pair is for horizontal, one is for vertical. They move the electron beam around the display. Looks like just the vertical one is connected backwards. Just unplug one of them, let's say the yellow/blue one, and rotate the connector 180 degrees, so instead of it being connected as (yellow, blue), it's connected as (blue, yellow). That should fix it. It was probably used as a teleprompter as mentioned in other replies. This modification does no harm to the monitor at all. Conversely, I'm unfamiliar with that monitor... there might be a switch to flip it on the front or back panel, in which case, flip the switch.  |
| Speelgoedmannetje Posts:9656 | May 26, 2008, 09:14:51 PM You've attached the plug upside down. |
| AMC258 Posts:877 
| December 14, 2007, 01:30:55 AM I once worked for the owner of a computer shop. Doomy would almost seem respectable compared to this guy. I found out real quick why he fired the last guy. There were a bunch of monitors in on consignment, and he had rewired them all to display upside down and backwards. My first job was to fix them. I fried three in a row because they were booby-trapped. The guy really knew what he was doing: reversing the deflection coil wires would fry the HOT! After trying to figure out how the heck he did that and frying monitor #3, I walked off the job. My brother worked for him for a couple of years until the guy got hauled off by the cops and my brother ended up suing him. One of the things he got busted for was on several occasions he staged break-ins at his shop and removed/destroyed $1000's of equipment and collected the insurance money! :crazy: |
| Brian Posts:1604 | June 09, 2007, 09:23:14 AM 1. Is the hand displayed correctly but in workbench it's displayed incorrectly: Check startup sequence, wbstartup and what not for software that might do this... easiest way would be to comment out all that's out of the ordinary and start uncomment until you get the problem again. 2. Is the hand display also displayed incorrectly: First try rule out the monitor by testing with a different known good monitor (and VGA converter if applicable). A. If this also fails check the internals of the A1000 for possible hacks. B. If the known good moniotor displays correctly check to see if the monitor you have might support such a feature (mirror+upside down). |
| Gwion Posts:466
| January 30, 2007, 09:00:47 PM Turn the monitor upsidown then it should look ok :-D |
| Delta Posts:221 | April 25, 2005, 03:45:55 PM Hehehe, it reminds me of an old Amiga virus that used to do that. You should have seen my face, it was the first virus I caught of my entire life (except for the flu) I just stopped moving for 10 seconds and called a friend of mine. He started laughing cause he had an Amiga for already 2 years by then and said: "Hahahaha you got a virus dude!"  |
| Animagic Posts:441 | March 04, 2005, 07:44:43 PM oh man! You just found the way to create really cheap "AutoCues" (you know the cue systems used on tv stations - the letters are projected to a glass in frond of the camera-something like that /__ <-mirror \_/ <-crt display |
| Lando Posts:1390
| February 28, 2005, 09:50:48 AM Can't believe how many people are actually falling for this! :lol: |
| Ilwrath Posts:2199 | February 25, 2005, 07:56:20 AM Does the Kickstart request hand come up correctly or double mirrored like the image here? |
| Matt_H Posts:6412 | February 24, 2005, 03:02:58 AM Pop the A1000 case open. Maybe the previous owner had some of that mirror mode hardware inside? |
| Framiga Posts:4096 | February 23, 2005, 08:08:38 PM oh yes Cass right . . you can use it in "Teleprompt" devices too. |
| Cass Posts:826 | February 23, 2005, 08:02:19 PM That's ideal for the mirror mode that some coinop/arcades implemented (the video screen was projected to a mirror in front of you) :insane: . |
| Lemonty Posts:193 | February 23, 2005, 07:21:33 PM Cool. Did you notice that it's upside down AND mirrored?[You did] If I were you I'd check the Startup-Sequence for any "funware". Does it display the "hand" okay before booting? |
| CU_AMiGA Posts:1807
| February 23, 2005, 01:30:49 PM Turn the picture tube upside down! :-D (rmember to take care!) Regards, |
| Linchpin Posts:1483
| February 23, 2005, 09:17:37 AM Is it like that when hooked up to say a TV modulator or some other display device? |