Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
Thinkpad 360CSE bad screens?
Thinkpad 360CSE bad screens?
Hi
I have two Thinkpad 360CSE machines - both in excellent condition, except the LCD doesn't show anything. I can see power, but nothing ever shows on the screen.
If I connect up an external monitor, the rest of the machine appears to function perfectly fine.
Has anyone else come up with an alternative display for these machines, as it seems the original one has a high failure rate.
Thanks
Alex
I have two Thinkpad 360CSE machines - both in excellent condition, except the LCD doesn't show anything. I can see power, but nothing ever shows on the screen.
If I connect up an external monitor, the rest of the machine appears to function perfectly fine.
Has anyone else come up with an alternative display for these machines, as it seems the original one has a high failure rate.
Thanks
Alex
http://Ret.Rocks - Rare Used & Restored Vintage Computing for Sale!
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Re: Thinkpad 360CSE bad screens?
It may be a failed backlight bulb/inverter. To check if it's the case you can use a flashlight to see if there is any image/characters on the screen. You may need to find the right angle to see anything. If there is no image then it could be either bad cable or mobo.
Thinkpads: 330C, 360CE, 560, 755CD, 760LD, 760EL, A21p, A31p, X60s, X230
Re: Thinkpad 360CSE bad screens?
After comparing the two machines it seems both have flourescent tubes which are dead, I have one decent inverter and 2 decent LCD panels.
Finding the replacement complete DSTN screen is basically impossible. Has anyone ever successfully replaced the light bulbs with an LED equivilent?
It looks like the inverter takes whatever it may be from the laptop's PSU and changes it up to 1000v to power the bulbs. If I simply took the feed from the PSU and fed it to two very small slim LEDs in the back panel, would that work?
Finding the replacement complete DSTN screen is basically impossible. Has anyone ever successfully replaced the light bulbs with an LED equivilent?
It looks like the inverter takes whatever it may be from the laptop's PSU and changes it up to 1000v to power the bulbs. If I simply took the feed from the PSU and fed it to two very small slim LEDs in the back panel, would that work?
http://Ret.Rocks - Rare Used & Restored Vintage Computing for Sale!
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Re: Thinkpad 360CSE bad screens?
I decided to order 3 different CCFL tubes from
https://www.lcdpart.com/products/ms3021 ... a36c&_ss=r
And I'll give them a go to see if any of them are suitable.
https://www.lcdpart.com/products/ms3021 ... a36c&_ss=r
And I'll give them a go to see if any of them are suitable.
http://Ret.Rocks - Rare Used & Restored Vintage Computing for Sale!
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Re: Thinkpad 360CSE bad screens?
Solidpro,
I have repaired older laptops like this in the past. I usually scavenge LED strips from a modern machine. Then figure out the input voltage on the inverter and build a small circuit to adapt the voltage. Installing the led strip in stead of the tube is usually a trial and error thing. In color displays the color usually is a bit off for some reason, but hey, you can't be too picky with this old stuff. If you can refurbish the battery somehow, then your battery life will be insane after this mod.
I have repaired older laptops like this in the past. I usually scavenge LED strips from a modern machine. Then figure out the input voltage on the inverter and build a small circuit to adapt the voltage. Installing the led strip in stead of the tube is usually a trial and error thing. In color displays the color usually is a bit off for some reason, but hey, you can't be too picky with this old stuff. If you can refurbish the battery somehow, then your battery life will be insane after this mod.
-
- Admin Emeritus
- Posts: 23826
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Loch Garman, Éire
Re: Thinkpad 360CSE bad screens?
I've never seen a 360-type inverter, so can't be more specific.
For LED-backlight you should take the required voltage (usually between +5V and +19V) and ground from the inverter.
Once it's tested and going, you should then also remove the transformer that gives the 1000+V power.
Example here: https://theboardroom.info/trafo.html
For LED-backlight you should take the required voltage (usually between +5V and +19V) and ground from the inverter.
Once it's tested and going, you should then also remove the transformer that gives the 1000+V power.
Example here: https://theboardroom.info/trafo.html
Lovely day for a Guinness! (The Real Black Stuff)
Re: Thinkpad 360CSE bad screens?
I got an assortment of CCFL tubes from lcdparts - came quite quickly. Postage from USA to UK was the same price as the tubes, so about £25 for tubes and £25 for postage.
Replaced the tubes in one of the 360CSE and it worked. Screen now works. The other 360CSE has a completely dead LCD so I'll stick it on ebay as working without the LCD.
I have also tried with LCDs but with the LCDs I used, the diodes were too far apart for a consistent white band along the where the tubes had been. Some sort of diffuser might have solved it at the expense of brightness but I ended up getting a completely new LCD panel and making it fit instead (and used the machine's VGA output to route a signal back in).
Replaced the tubes in one of the 360CSE and it worked. Screen now works. The other 360CSE has a completely dead LCD so I'll stick it on ebay as working without the LCD.
I have also tried with LCDs but with the LCDs I used, the diodes were too far apart for a consistent white band along the where the tubes had been. Some sort of diffuser might have solved it at the expense of brightness but I ended up getting a completely new LCD panel and making it fit instead (and used the machine's VGA output to route a signal back in).
http://Ret.Rocks - Rare Used & Restored Vintage Computing for Sale!
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
Wanted: 220, 315D, 320, 350x, 355x, 500, 510, 530CS, 730TE, 750P, 755CD, Any 8xx Series, A20p, A21p, A22p, A31p, T40p
Currently For Sale (Restored): 560Z, 380Z, T20, T21, T22, R61, R51
-
- Posts: 3
- Joined: Thu Oct 14, 2021 2:22 pm
- Location: Vienna, Austria
Re: Thinkpad 360CSE bad screens?
i dont know if i'm already too late, but you should check the caps on the defective screen. i just fixed the backlight of a 360Cs (recaped the inverter) but the screen didnt showed anything.
then i disasembled the screen further (was in kind of a metal cage with the backlight unit) and i found five small caps on the connector-board where the screen cable plugs in. one of them leaked all the gunk out of it, over a resistor and another smd cap and after removing the gunk, the screen already worked again!
i then replaced the caps aswell just to be safe. now i have a fully working 360Cs again.
if you want some pics or additional informations, i'm happy to share!
kind regards!
then i disasembled the screen further (was in kind of a metal cage with the backlight unit) and i found five small caps on the connector-board where the screen cable plugs in. one of them leaked all the gunk out of it, over a resistor and another smd cap and after removing the gunk, the screen already worked again!
i then replaced the caps aswell just to be safe. now i have a fully working 360Cs again.
if you want some pics or additional informations, i'm happy to share!
kind regards!
-
- Similar Topics
- Replies
- Views
- Last post
-
- 5 Replies
- 358 Views
-
Last post by solidpro
Mon Mar 18, 2024 11:08 am
-
-
Possible bad reads from T530 using pico
by ame » Sat Nov 11, 2023 10:15 pm » in ThinkPad T430-T490 / T530-T590 Series - 0 Replies
- 2183 Views
-
Last post by ame
Sat Nov 11, 2023 10:15 pm
-
-
-
How bad was the Thunderbolt Firmware Problem
by euless » Wed Feb 07, 2024 4:19 am » in ThinkPad T430-T490 / T530-T590 Series - 3 Replies
- 842 Views
-
Last post by TPFanatic
Sun Feb 11, 2024 6:20 am
-
-
-
X131e Bad CMOS Battery - Unresponsive
by PinkFloydEffect » Sat Feb 17, 2024 1:29 am » in ThinkPad X100e/X120e/X130e/X140e Series - 2 Replies
- 1033 Views
-
Last post by PinkFloydEffect
Sat Feb 17, 2024 2:28 pm
-
Who is online
Users browsing this forum: Psyberducky and 32 guests