Guest Dan Cook Posted June 1, 2010 Share Posted June 1, 2010 The CRT/touch screen goes blank from time to time in my '89. I'm wondering if it is time to replace it or maybe there is another problem?Dan Link to comment Share on other sites More sharing options...
padgett Posted June 1, 2010 Share Posted June 1, 2010 Could be the Central Power Supply or an ALDL fault. Link to comment Share on other sites More sharing options...
Guest Dan Cook Posted June 1, 2010 Share Posted June 1, 2010 I'm not sure what an ALDL fault is. Electrical isn't one of my strong points. Link to comment Share on other sites More sharing options...
padgett Posted June 1, 2010 Share Posted June 1, 2010 Assembly Line Data Link - the serial LAN on the Reatta. How display commands get from the BCM to the CRT. Link to comment Share on other sites More sharing options...
Guest Dan Cook Posted June 1, 2010 Share Posted June 1, 2010 OK, I found it in the manual, now I'll look at the car. Link to comment Share on other sites More sharing options...
Jim Posted June 1, 2010 Share Posted June 1, 2010 Dan,I do have a good one and replied the the email you sent me.Jim Link to comment Share on other sites More sharing options...
DAVES89 Posted June 1, 2010 Share Posted June 1, 2010 It's located under the dash about where your left knee would be if you were sitting in the drivers seat... There should be a cover for it and the cover should be in place... Link to comment Share on other sites More sharing options...
Guest Dan Cook Posted June 1, 2010 Share Posted June 1, 2010 Dan,I do have a good one and replied the the email you sent me.JimJim, I sent you a return email. Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 10, 2010 Share Posted September 10, 2010 Please tell me that this is easy to install. I suspect a simular problem with my Reatta. My crt display was wavy and pretty scuffed up screen wise.It would go dark then reappear as quick as it went. I swapped it out with a extra crt that came with the car when I got it. All was fine at first with crisp display and working great then on comes a message that says communication breakdown and the screen has been dark since then. Does this sound like a ALDL problem?Central power supply? Link to comment Share on other sites More sharing options...
padgett Posted September 10, 2010 Share Posted September 10, 2010 Does the IPC (speedo) still work ? The odometer ? If so then the CPS is most likely OK. The "communication breakdown" message probably came from the BCM. Did you try putting the original CRT back in ? Where you want to start is with section 8A-83. See also the troubleshooting charts that begin with chart B-1 on page 8D-48 of the 88 FSM or 8D-26 of the 89 FSM (online).There is also a CRTC (CRT Controller) that does the image processing. Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 10, 2010 Share Posted September 10, 2010 Speedometer and odometer still work. Old crt unit also dark. Due to the age of my computer or some kind of virus I can't download the FSM online. I need to spend the money to upgrade or fix my computer or buy a FSM,for sure. Right now I'm so broke I can barely pay attention. Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 12, 2010 Share Posted September 12, 2010 Spent a good chunk of yesterday and this morning messing with computer to download FSM. Today I'll call Office Depot or something like it to see about them printing up the parts of the manual recommended. Computer has me disgusted. Now back to the Reatta. Should I just go ahead and replace the ALDL. Is this something I can do myself? Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 12, 2010 Share Posted September 12, 2010 BTW,Did Dan Cook ever figure out his problem? Hello Dan? Link to comment Share on other sites More sharing options...
harry yarnell Posted September 12, 2010 Share Posted September 12, 2010 Why would you replace the ALDL? It's just a connector that has nothing to do with the operation of the car...unless you want to nit pick about the redundant data line link, and that's just a jumper. Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 12, 2010 Share Posted September 12, 2010 I for the most part have no idea what I'm doing. Just trying to get my CRT working without intermittent problem of the screen going blank. Link to comment Share on other sites More sharing options...
padgett Posted September 12, 2010 Share Posted September 12, 2010 Really, if you want to maintain a computer car, it is a good idea to understand them or have someone on call who does. Do not need to know the instruction set of a 68HC09 processor or the 8192 baud serial data stream on the ALDL but it helps.No local nerd ? Link to comment Share on other sites More sharing options...
Ronnie Posted September 12, 2010 Share Posted September 12, 2010 I for the most part have no idea what I'm doing. Just trying to get my CRT working without intermittent problem of the screen going blank.The best place to start is by answering questions like Padgett asked:"Does the IPC (speedo) still work ? The odometer ? If so then the CPS is most likely OK. The "communication breakdown" message probably came from the BCM. Did you try putting the original CRT back in ? "We need detailed information about the problem to help you diagnose it. Answers to the questions are very important part of the process of finding the problem. Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 12, 2010 Share Posted September 12, 2010 Yes I tried putting the original CRT back in. Speedometer and odometer still work. Also local nerd that I had joined the marine corp. Link to comment Share on other sites More sharing options...
Guest Mc_Reatta Posted September 12, 2010 Share Posted September 12, 2010 I'd check connections to the CRT first and then suspect the CRTC if the display is screwy or blank. ALDL issues shouldn't make the CRT go dark, but should set a data loss or electrical problem error display.I suspect it is an intermittent failure of the CRT or CRTC or a connection problem.If the CPS was bad there should be other issues like the IPC going dark as well.Having changed out the CRT with no change, I'd suspect the CRTC. Link to comment Share on other sites More sharing options...
harry yarnell Posted September 12, 2010 Share Posted September 12, 2010 ...or a bad second CRT... Link to comment Share on other sites More sharing options...
DAVES89 Posted September 12, 2010 Share Posted September 12, 2010 Craig57 I will be in Menomonee Falls on Wed. I have an extra CRT that I know is good. I don't want to sell it but we could try it and see if it works for you. If I have time I will also try to grab a crtc from the local u-pick and you could try that as well. Email me at lemke1044@aol.com if you want to meet... Link to comment Share on other sites More sharing options...
Guest Craig57 Posted September 17, 2010 Share Posted September 17, 2010 Replaced CTR & CTRC after meeting up with DAVES89 today. Thanks again Dave,my ride to work was great. Link to comment Share on other sites More sharing options...
DAVES89 Posted September 17, 2010 Share Posted September 17, 2010 Sometimes I am just too helpful... A CRT for cryin out loud!!! Link to comment Share on other sites More sharing options...
Guest JHefner Posted January 2, 2011 Share Posted January 2, 2011 (edited) Hello All and Happy New Year!I just joined this forum hopefully to help resolve a similar problem. I am doing this for my 83 year old dad who has an 89 black coupe with only 38K miles on it. He is not terribly car savvy other than knowing what he likes and dislikes in an automobile, and he loves his Reatta having owned it for over 20 years now, he is not computer or technically savvy.The CRT/Touchscreen went blank several months ago but the Speedo/Fuel still displays. When you touch the screen in the appropriate location there is an audible beep and the switches and switch function lights along the CRT border work. My dad lives in Brentwood, Tenn. outside of Nashville so I am doing this from afar as I live on the east coast of Florida. I spent some time over the holidays with the car and tried to trouble shoot as far as possible. Any help and/or expertise would be greatly appreciated as I would like to get my dad back on the road again.Thanks,Jeff Hefnerjhef101@aol.com321-779-0516 H321-750-1833 C Edited January 2, 2011 by JHefner (see edit history) Link to comment Share on other sites More sharing options...
Guest Mc_Reatta Posted January 3, 2011 Share Posted January 3, 2011 Welcome to the Forum!I sent you a private email as we are neighbors.Just went through this twice. You dad needs a replacement CRT or his repaired.If it was local I would be happy to test it for you.Dave and Jim will chime in if they have any good tested ones on hand so you can get you dad a late Christmas Present.They are very easy to replace. Link to comment Share on other sites More sharing options...
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