lowlevel Posted November 24, 2009 Share Posted November 24, 2009 I've recently became owner of two vr8 abstract scanners (regular version, non rotating). One is working perfectlyOther one has display/storage problems. I isolated the problem to vr display board v1.2, the one with the displays and buttons on it. When I move the 'good' board from the one machine to the other, the other machine works 100% then. So the problem is definitely this pcb. I also tried swapping the chip that is on it (firmware chip?), but the fault wasn't located here. I checked with abstract themselves but haven't had an answer yet. So in the meantime...If anyone is having this board in working condition (from a broken machine for parts for example) or has it just as a spare, and is willing it to sell to me. I would be very happy. I know these lights don't go for big money these days, but I'm always happy when I'm able to repair some equipment. I'm located in Belgium, but can pay perfectly through paypal or wire transfer. Link to comment Share on other sites More sharing options...
Richard CSL Posted November 24, 2009 Share Posted November 24, 2009 Try here http://www.lteltd.com/djs&lSparesPCBs&...ectingLeads.htmthis company supply all spares for Abstract lighting. Link to comment Share on other sites More sharing options...
lowlevel Posted November 24, 2009 Author Share Posted November 24, 2009 Try here http://www.lteltd.com/djs&lSparesPCBs&...ectingLeads.htmthis company supply all spares for Abstract lighting. Thank you for the link! I emailed them but they don't have any stock left. They do offer a repair service, though if anyone on this forum has this part for sale, please let me know. I would prefer buying right away Here's a pic of the part:http://users.pandora.be/daviddet/PCB.jpg Link to comment Share on other sites More sharing options...
Dave Posted November 24, 2009 Share Posted November 24, 2009 (1) there seems to be very little on that board. If the problem definitely moves with the board and not the chip on the back of it (can you tell us the part number please), then you probably have a short circuit or dry joint etc (apart from the obvious things like bad leds or switches). (2) Jamie Shurlock may have one - look at www.jamiesmagictorch.co.uk. I'm not sure, but I think he sometimes hangs out here... Link to comment Share on other sites More sharing options...
lowlevel Posted November 24, 2009 Author Share Posted November 24, 2009 Hi Dave tanx for the reply.There is more on the backside of that board next to the firmware chip, also 2 ic's (one is I believe a RAM chip)I contacted Jamie through his website if he may have one. Link to comment Share on other sites More sharing options...
Dave Posted November 24, 2009 Share Posted November 24, 2009 How about posting a nice pic of the back of the PCB (I'm just curious) Link to comment Share on other sites More sharing options...
lowlevel Posted November 24, 2009 Author Share Posted November 24, 2009 How about posting a nice pic of the back of the PCB (I'm just curious) I'll try to post one tonight! Got answer from Jamie, unfortanuately he doesn't has this board anymore. Link to comment Share on other sites More sharing options...
collism Posted November 24, 2009 Share Posted November 24, 2009 pm sent. Link to comment Share on other sites More sharing options...
johnhuson Posted November 24, 2009 Share Posted November 24, 2009 You might want to try Sabre Technology, they manufactured the electronics for most of Abstract's fixtures including VR8. They've always been very helpful to me in the past. Link to comment Share on other sites More sharing options...
lowlevel Posted November 25, 2009 Author Share Posted November 25, 2009 update: Collism perhaps has one for me. As promised the picture from the backside of this pcdb. I believe it is the chip on the left. It's some kind of eprom that holds data (software?). I believe this is the faulty one on the board I have http://users.telenet.be/daviddet/print.JPG Link to comment Share on other sites More sharing options...
Dave Posted November 25, 2009 Share Posted November 25, 2009 OK, the big socketted IC on the right is a microcontroller. It does contain some memory but that may not be enough. The small one on the left could well be a serial EEPROM or flash. These do have limited numbers of read/write cycles so it may have gone bad. Incidentally, the short number on the big chip appears to be 9843 - this is a date code, 43rd week of 1998. If you tell us the numbers on the other two chips we should be able to tell you what they are. Link to comment Share on other sites More sharing options...
lowlevel Posted November 25, 2009 Author Share Posted November 25, 2009 Have the board not with me right now but looking at the higher res picture I took, it doesn't have any nr's on it. If the eeprom has gone bad, it will take some work to repair it:- unsolder the bad one- get a new one + burn the correct data into it- solder it back onto the board (in a socket) Especially the 2nd step is beyond my capabilities so a replacement board would be the better thing. Link to comment Share on other sites More sharing options...
lowlevel Posted November 28, 2009 Author Share Posted November 28, 2009 Have the board not with me right now but looking at the higher res picture I took, it doesn't have any nr's on it. If the eeprom has gone bad, it will take some work to repair it:- unsolder the bad one- get a new one + burn the correct data into it- solder it back onto the board (in a socket) Especially the 2nd step is beyond my capabilities so a replacement board would be the better thing. Had a lead by Colism but get no reply anymore through pm or mail though he is online here... So if anyone else has this board for sale, please let me know. Link to comment Share on other sites More sharing options...
avdavesound Posted December 1, 2009 Share Posted December 1, 2009 Have the board not with me right now but looking at the higher res picture I took, it doesn't have any nr's on it. If the eeprom has gone bad, it will take some work to repair it:- unsolder the bad one- get a new one + burn the correct data into it- solder it back onto the board (in a socket) Especially the 2nd step is beyond my capabilities so a replacement board would be the better thing. Had a lead by Colism but get no reply anymore through pm or mail though he is online here... So if anyone else has this board for sale, please let me know. I should have one in the warehouse, there 4 vr8's in pieces in a box somewhere. I'll do some routing in the next few days Link to comment Share on other sites More sharing options...
TheLightsTech Posted December 3, 2009 Share Posted December 3, 2009 Is there some darkening/ heat marks on the board around that chip on the left? It looks kinda like there may be... but that could also be a shadow or 50 other things Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.