Justin Havu Posted April 23, 2012 Share Posted April 23, 2012 So I powered up the QS today, to play around with it, and part of the display won't show, not even on the highest contrast setting, as shown in the pic... http://i88.photobucket.com/albums/k193/justinhavu/Untitled.jpg Anyone know the cause of this, and if it's fixable or not? Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
MuzikTeechur Posted April 24, 2012 Share Posted April 24, 2012 Open it up and check the ribbon cable. Muzikteechur is Lonnie, in Kittery, Maine. HS music teacher: Concert Band, Marching Band, Jazz Band, Chorus, Music Theory, AP Music Theory, History of Rock, Musical Theatre, Piano, Guitar, Drama. Link to comment Share on other sites More sharing options...
ITGITC Posted April 24, 2012 Share Posted April 24, 2012 Anyone know the cause of this, and if it's fixable or not? Cat pee. (No. I'm not kidding.) In the photo, it looks as though the characters are trying to display, but perhaps that's just the contrast setting you're using. Either the LCD panel needs to be replaced, or... well, check the ribbon cable. Dollars to Krispy Kreme donuts it's the LCD panel itself that's gone bad. (Nom... Krispy Kreme.) Good luck, Justin! Tom "Music expresses that which cannot be put into words and that which cannot remain silent." - Victor Hugo Link to comment Share on other sites More sharing options...
Justin Havu Posted April 24, 2012 Author Share Posted April 24, 2012 I turned the contrast all the way up to better show the problem I'm having. I'll check the cable and see if that is the issue. Anyone know where to get a replacement LCD panel, or do I need to find another Quadrasynth for parts? Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Justin Havu Posted April 24, 2012 Author Share Posted April 24, 2012 And no, we don't have any cats in the place at all, so I can rule out cat pee. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
ITGITC Posted April 24, 2012 Share Posted April 24, 2012 I turned the contrast all the way up to better show the problem I'm having. I'll check the cable and see if that is the issue. Anyone know where to get a replacement LCD panel, or do I need to find another Quadrasynth for parts? It could be the LCD panel. It could be the ribbon cable or connection. Or, it could be the circuitry that produces the characters that are sent to the LCD panel. In other words, if you replace the LCD panel and it turns out to be something else, you won't be happy. If it's consistent - meaning, if it's the same pixel locations that fail every single time, then let's hope that the problem is the ribbon cable/connector. Usually, in an LCD panel such as this one, I doubt the pixels themselves are the problem. (That's my second guess.) If you open the keyboard up and find that the ribbon cable/connector is fine, my bet would be that something in the character-generation circuitry has failed. (...my third guess.) Are you SURE that you don't have wandering felines in your neighborhood that drop by to visit. I hear there are many of these in Maine. In fact, the state of Maine has designated it's own: http://jtucker.mystudentsite.net/joomla/images/stories/riley-maine-coon-cat.jpg Cat pee is STILL my first guess! Tom "Music expresses that which cannot be put into words and that which cannot remain silent." - Victor Hugo Link to comment Share on other sites More sharing options...
Justin Havu Posted April 24, 2012 Author Share Posted April 24, 2012 Haha! We have one stray cat hanging around the neighborhood, but he hasn't gotten in here, thank GOD!! I checked the ribbon cable, and it looks fine to me--no loose connections. And yes--it's consistent. Keyboard powers up with the same missing characters. My next problem would be where to find such parts to get it working properly again. eBay doesn't really have anything, and when they do, the prices are usually stupid expensive. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
ITGITC Posted April 24, 2012 Share Posted April 24, 2012 Justin- the bigger problem is troubleshooting without a repair manual or schematic. No. I'm wrong. The biggest problem may be finding the parts. If it is consistent, I imagine there is a problem with a particular IC that controls character generation in the display. Again - it could be the LCD panel itself, but how do you determine this for sure? (Other than buying another LCD panel and replacing the part.) Maybe someone else who knows much more than I will chime in to help you. Best of luck! Tom "Music expresses that which cannot be put into words and that which cannot remain silent." - Victor Hugo Link to comment Share on other sites More sharing options...
ITGITC Posted April 24, 2012 Share Posted April 24, 2012 Try posting on this forum: http://www.synthman.com/quadrasynth/qs-forum/qs-forum.html Here is a response to your question from that forum: I believe that info is also in the Archive here as I used it to replace one for a friend of mine last year. About $20 and and hour or two of work. -=Steve : You might want to join the 1alesis_qs_series list at yahoo groups, there was a subject on how to replace the LED display some years ago with pics and all. : Hope this helps. : David C. Tom "Music expresses that which cannot be put into words and that which cannot remain silent." - Victor Hugo Link to comment Share on other sites More sharing options...
Justin Havu Posted April 24, 2012 Author Share Posted April 24, 2012 That link unfortunately saves as an HTML document, I'll unfortunately have to try it in IE. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Justin Havu Posted April 24, 2012 Author Share Posted April 24, 2012 As soon as I can scrape some extra cash together, I'm going to try replacing the ribbon cable, since it seems to be easier to track down one of those, than tracking down a display. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Markyboard Posted April 24, 2012 Share Posted April 24, 2012 Telesis Link to comment Share on other sites More sharing options...
ksoper Posted April 25, 2012 Share Posted April 25, 2012 I hear there are many of these in Maine. In fact, the state of Maine has designated it's own: http://jtucker.mystudentsite.net/joomla/images/stories/riley-maine-coon-cat.jpg My Maine Coon is this cat's cousin. He's not quite this big, but he can stand on his back legs and see over the kitchen counter top. Link to comment Share on other sites More sharing options...
ITGITC Posted April 25, 2012 Share Posted April 25, 2012 Telesis I have purchased a backlight from Telesis for my K2000. Mark, I don't think they stock/carry the LCD panel itself, just the backlight. Anyway, the guy who runs this business is fine to work with. No problems. Tom "Music expresses that which cannot be put into words and that which cannot remain silent." - Victor Hugo Link to comment Share on other sites More sharing options...
Justin Havu Posted April 25, 2012 Author Share Posted April 25, 2012 Telesis I don't think they stock/carry the LCD panel itself, just the backlight. Yeah, that's what I thought. But let it be known that if I ever need a backlight, I'll be buying from them. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Markyboard Posted April 25, 2012 Share Posted April 25, 2012 Telesis I have purchased a backlight from Telesis for my K2000. Mark, I don't think they stock/carry the LCD panel itself, just the backlight. Anyway, the guy who runs this business is fine to work with. No problems. Tom Yeah - I was thinking I replaced the entire display on my Wavestation AD but now recall I sent in the original to Telesis and he replaced only the backlight. Good call Tom and I agree he is a good guy. Link to comment Share on other sites More sharing options...
Justin Havu Posted February 27, 2016 Author Share Posted February 27, 2016 Hate to resurrect an old thread, but here goes. I never fixed the display on the QS and wound up selling it the first week of May. Got another one a couple years ago for $200. Display was fine until a couple weeks ago when the same thing happened. I replaced the display to no avail, so my other guess is it could be just a bad ribbon cable. I svengled for the last half hour for a replacement at a reasonable price plus a reasonable shipping cost. I found the replacement cable at Syntaur for around $6 or $7, but the shipping calculated at $16. Now, that's a bit ridiculous seeing as the replacement display I bought from them for $70 only cost $6 to ship. I tried Instrumental Parts, to no avail. Any other leads? Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
J. Dan Posted February 27, 2016 Share Posted February 27, 2016 Does it have to be an exact replacement? Seems to me ribbon cables are pretty standardized in terms of connectors and such. Maybe you can find a generic one with the right connectors that's close in length. Maybe try Digikey. Dan Acoustic/Electric stringed instruments ranging from 4 to 230 strings, hammered, picked, fingered, slapped, and plucked. Analog and Digital Electronic instruments, reeds, and throat/mouth. Link to comment Share on other sites More sharing options...
Markyboard Posted February 27, 2016 Share Posted February 27, 2016 so my other guess is it could be just a bad ribbon cable. Just a thought- did you try re-seating the ribbon cable on both ends? Like you said at this point it's just a guess. Also if you have a multi-meter/ohm meter it would be easy to check continuity from one end of the ribbon to the other on every pin. If you pursue this make sure to do so with power off. Link to comment Share on other sites More sharing options...
Justin Havu Posted February 27, 2016 Author Share Posted February 27, 2016 Yep. Tried re-seating the cable on both ends. No multimeter handy. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Markyboard Posted February 27, 2016 Share Posted February 27, 2016 Oh well - worth a shot. I agree you might be able to find a similar cable elsewhere, just might be more hassle then you want to deal with. If you want to, post a picture of the cable. I or someone may have a spare. Link to comment Share on other sites More sharing options...
Justin Havu Posted February 27, 2016 Author Share Posted February 27, 2016 Here's a pic of the one from Syntaur. Can't really tell if that's a standardized connector. http://i88.photobucket.com/albums/k193/justinhavu/4428-Lg.jpg Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Markyboard Posted February 27, 2016 Share Posted February 27, 2016 I dont have any with 14 contact sockets . Check this one out but difficult to tell from your pic if this will work (because of the keying tab). Ribbon Replacement Link to comment Share on other sites More sharing options...
Markyboard Posted February 27, 2016 Share Posted February 27, 2016 Take a look at this one as well. I'd give it a shot for the price or google other 14 pin ribbon cables Another one Link to comment Share on other sites More sharing options...
J. Dan Posted February 27, 2016 Share Posted February 27, 2016 If you have any local stores with used computer parts or general electronics, try taking your cable in and matching it up. Some of these places have bins full of miscellaneous ribbon cables you can go through. Dan Acoustic/Electric stringed instruments ranging from 4 to 230 strings, hammered, picked, fingered, slapped, and plucked. Analog and Digital Electronic instruments, reeds, and throat/mouth. Link to comment Share on other sites More sharing options...
Justin Havu Posted February 27, 2016 Author Share Posted February 27, 2016 The first one looks right to me. Order placed. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Justin Havu Posted March 12, 2016 Author Share Posted March 12, 2016 UPDATE: No dice. Replaced the ribbon cable, tried it on both the original display, and its replacement, to no avail. Now, I'm thinking it's something on the main board. That's something I don't want to mess with as my soldering skills leave a bit to be desired, especially with surface-mounted components. Sucks, because it's one of my main gigging boards, and due to my conditions, I'm unable to work a regular job to support myself, let alone fund a replacement. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Markyboard Posted March 12, 2016 Share Posted March 12, 2016 Yeah, sorry about that Justin-but I think it was worth a shot. At this point I think your next best bet is the display panel ( as others have already indicated) . But as you know it comes with a higher cost risk if it turns out to be something else. I would at least try to find out what it would cost including labor so you can make an informed decision. Link to comment Share on other sites More sharing options...
Justin Havu Posted March 13, 2016 Author Share Posted March 13, 2016 I guess another option would be to find a replacement main board. As I said, I have two different display panels, and it's doing the same thing on both of them. I've tried replacing the ribbon cable, as well as swapping out the display with a new one. So I'm thinking that it's something with the main board. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Justin Havu Posted March 22, 2016 Author Share Posted March 22, 2016 UPDATE--Still no dice. Replaced the main board, and tried both displays and both ribbon cables. Still to no avail. Maybe the display isn't getting enough power?? Not sure where to go from here. I really don't want to find a replacement, unless it's another Quadrasynth, because I really love this board. Hardware Yamaha MODX7, DX7, PSR-530, MX61/Korg TR-Rack, 01/W Pro X, Trinity Pro X, Karma/Ensoniq ESQ-1 Behringer DeepMind12, Model D, Odyssey, 2600/Arturia Keylab MKII 61 Software Studio One/V Collection 9/Korg Collection 4/Cherry Audio/UVI SonicPass/EW Composer Cloud/Omnisphere, Stylus RMX, Trilian/IK Total Studio 3.5 MAX/Roland Cloud Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.