zakkyboi Posted July 5, 2008 Share Posted July 5, 2008 Just a random question.... I was just using my mac 250 and was about to put it onto 'Demo' and as soon as I pushed enter it cut out. something to do with the lamp turning on I guess? Basically my question is, does anyone know what has happened? (and yes I've tryed over power points and other cables, I've checked the fuses aswell and they are all fine inside.) Any Help would be great =] Cheers Link to comment Share on other sites More sharing options...
Alpha Posted July 5, 2008 Share Posted July 5, 2008 sounds like something in its guts has died, let it rest for 12 hours, give it another go if not open it up and take a look for any obvious things that have fried. If its not making any noises or showing any signs of life you want to start by looking at the way power comes in, and then where it goes from there. Link to comment Share on other sites More sharing options...
gherriott Posted July 5, 2008 Share Posted July 5, 2008 Does the unit powerup at all? Link to comment Share on other sites More sharing options...
zakkyboi Posted July 5, 2008 Author Share Posted July 5, 2008 just checked again...and nothing... :S confusing, because its not like anything looks blown or fried and theres no cables inside that have come loose. And I've changed the back panel over with another mac 250 and all works fine on the other so it isn't that part. Link to comment Share on other sites More sharing options...
frazer Posted July 5, 2008 Share Posted July 5, 2008 Could be a number of things causing that fault. It could be a blown fuse to the logic board. The whole unit will appear to be completely dead because there is no logic information kicking it into action. Do the motors energise? The motors will move in steps if they have power - no power and they will move freely. Frazer Link to comment Share on other sites More sharing options...
zakkyboi Posted July 6, 2008 Author Share Posted July 6, 2008 its all free moving, tottally dead, I guess the next thing to do is to change the fuses over and see if it still works on the working mac... Link to comment Share on other sites More sharing options...
zakkyboi Posted July 6, 2008 Author Share Posted July 6, 2008 just finished cleaning it out, and changed the fuses over and still nothing...tottally dead still... and other ideas? Cheers Zak Link to comment Share on other sites More sharing options...
b1nuzz Posted July 6, 2008 Share Posted July 6, 2008 Hi Zak, If you have another uit that is the same, try swapping out the PCB board. Sometimes you will find that a PCB will stop working and not give you any ideas as to why. We have had this with a Mac 2000 recently. A new PCB fixed it though. If you the fault is fixed, it sounds like you need a new PCB. If not, then get back to us. Link to comment Share on other sites More sharing options...
niclights Posted July 6, 2008 Share Posted July 6, 2008 Ballast/connection to ballast (control board side) or, having perhaps overlooked the really obvious, a dropped connection in mains plug? Link to comment Share on other sites More sharing options...
RobOwen Posted July 7, 2008 Share Posted July 7, 2008 Most fixtures I've worked on have a PSU that outputs three voltages for the various parts of the head, 5V for the control logic, 12v for the fans, and 32v for the motors. If none of these are working then it's worth multimetering the input side of the PSU to see if you can see mains voltage. If you can then trace forward to any main fuse on the PSU, if you can't you need to trace back. As Niclights (and possibly others) have said check simple things that get the most abuse like the plug itself. There normally isn't too much that goes wrong (which is hard to fix) on the mains side of things. Link to comment Share on other sites More sharing options...
zakkyboi Posted July 8, 2008 Author Share Posted July 8, 2008 thank you for everyone's help so far, I've just started following it through and checking it with the other mac (the working one) and basically I have found that on the broken one, if I follow the cable (blue) from the IEC socket to the first pcb board, it wont come back out of that pcb, compared to the working mac, it comes out of a thick-ish white cable and a blue cable, does anyone know what this means? will I need to replace this pcb board? thanks again =] A concurrent post has been automatically merged from this point on. Just an update...I've found a gap in the solidering on that board and have re-solidered it. power it back up and it works...apart from coming up with a tilt error (FbET) and a gobo error[I'm guessing because the gobo's aint alined up properely] (GoER). I'm having a few mates looking at it on thursday but woundering if anyone knew what it is now. all the lamp on/color/pan/focus/prism work fine, just the tilt and the gobo's that are misbehaving. Any ideas? Cheers again =] Link to comment Share on other sites More sharing options...
RobOwen Posted July 8, 2008 Share Posted July 8, 2008 These are more common problems which have been covered a few times on here. Try searching the error codes and you will find lots of info on them and the solutions. Without meaning to sound patronising, be careful with your mates poking around inside them, discharge lamps can give you nasty "sunburn" and fingers can get trapped (and broken) quite easily in the rotating yoke, especially if someone is playing with the controller while someone else is fiddling inside. As tempting as it is to fix with the power on, try not to. If your worried about the lamp going on and off while rebooting disconnect the ballast power supply. Link to comment Share on other sites More sharing options...
johnhuson Posted July 8, 2008 Share Posted July 8, 2008 discharge lamps can give you nasty "sunburn"Worse than that you can get something commonly referred to as Arc Eye, something more commonly experienced in welding but moving light discharge lamps can also cause the same effects. It's really very painful and can be best explained as feeling like you have grit at the back of your eye. The discomfort is short term but I'm sure it can't do your eyesight any long term good if it happens repeatedly. Link to comment Share on other sites More sharing options...
zakkyboi Posted July 16, 2008 Author Share Posted July 16, 2008 Hey, I got hold of Martin just to see what they though on it, they said to buy new motors and chips, so I had a look online (last few days I've been looking) and cannot find anything, only th new ones, and I'm guessing they are not the same because of new technology and stuff. Basically my question is, does any one know where I can get the motors and chips from, I need to get them asap though, ie:- order them by the end of the week ready to install next week. And thanks again for everyone's input so far. =] Link to comment Share on other sites More sharing options...
dunk_1984 Posted July 16, 2008 Share Posted July 16, 2008 If you don't know part numbers, call Martin - 0162 2755 442 and get the part numbers, then call a distributor like Stage Electric, or again you can ask Martin for your local distributor. Then call them and order the parts. Hope you get it sorted. Link to comment Share on other sites More sharing options...
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