Guest Nin_10_Dough Posted March 12, 2005 Report Share Posted March 12, 2005 I was referred here by Bill :) I have a IBM thinkpad 390 ( oldie ) model 2626-70U. It's running 2000 pro. It can output to crt just fine, but the lcd is blank even when I set it as the initial boot display, won't even show the bios screen. The lcd lights up and gives off a "glow" but nothing actually on the screen. any ideas? Quote Link to comment Share on other sites More sharing options...
LSudlow Posted March 12, 2005 Report Share Posted March 12, 2005 Unfortunately if it doesn't even show the BIOS stuff during startup it's probably a hardware failure. Quote Link to comment Share on other sites More sharing options...
Bill Posted March 12, 2005 Report Share Posted March 12, 2005 Do any of you guys know how he would go about checking the connection from the LCD to the GF card, or whatever, or where he could order a replacement screen? He got that laptop from a friend for free, because it was broken. Eitherway, the laptop itself still works, and if you can't fix it and dont' want a half broken laptop, you could maybe sell parts of it or the whole thing on ebay. Quote Link to comment Share on other sites More sharing options...
LSudlow Posted March 12, 2005 Report Share Posted March 12, 2005 See if you can find a service manual or user manual for that model online somewhere. They frequently show how to dissasemble for cleaning and maintenance. There may even be a parts list that would help. Quote Link to comment Share on other sites More sharing options...
mobilenvidia Posted March 12, 2005 Report Share Posted March 12, 2005 On the info given, I would say, most likely the inverter is buggered. This is the controller between the GPU and the LCD, it basicly controls the LCD display. (converts the signal from CRT to LCD signal (LCD sort of work backwards) The reason why you see nothing and the CRT still works (which doesn't use an inverter) The inverter is replacable, Ebay will have them, but can be tricky to replace as it means pulling the machine apart. The inverter will be near the top of the machine usually near one of the hinges that has the cable to the LCD. It is usually also on a seperate wee board that is removable. Fiddly little cables run from the MB to it and then go to the LCD. The cables need to be very carefully inserted into their sockets as this can also cause the LCD from not working (Check this first, and if the cable is broken at all from being bent or pinched by the hinge) To get this replaced by a shop will cost a fortune, best done your self. I assume the warrenty ran out a long time ago, as this is an ancient model. I hope this helps, I can only guess that it's this, as it's the most likely cause of your problem. It could be other things at fault, so don't just take my word for it. Quote Link to comment Share on other sites More sharing options...
Guest Nin_10_Dough Posted March 12, 2005 Report Share Posted March 12, 2005 Most people who I have asked about it thought it was probably a hardware failure. If I can't find a service manual to see how to disassemble it, I'll probably ebay it. Quote Link to comment Share on other sites More sharing options...
Jeroen Posted March 13, 2005 Report Share Posted March 13, 2005 Hello, i think this can help you, it's some kind of hardware maintance manual (or something) about that notebook! http://www-1.ibm.com/support/docview.wss?r...ZRKLH&loc=en_US this is the site where I found it, otherwise, you can download the pdf directly by this link: ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/390hmm.pdf Hopely you can fix that problem (I also think the problem is caused by the inverter!) Quote Link to comment Share on other sites More sharing options...
®®® Posted March 13, 2005 Report Share Posted March 13, 2005 :) Quote Link to comment Share on other sites More sharing options...
Guest Nin_10_Dough Posted March 13, 2005 Report Share Posted March 13, 2005 *high fives Jeroen* that does show the parts, now I just need to figure out how to take it apart. Wow, guests can post attachments! This is the illuminated lcd I was talking about. I shut the flash off, but the glow is still a bit exagerated. Quote Link to comment Share on other sites More sharing options...
Guest Nin_10_Dough Posted March 13, 2005 Report Share Posted March 13, 2005 Sorry for the double post, Bill just told me I can't hit preview or I lose the attachment. So I'll try again. Can someone please combine these posts? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.