It has happend a few times when powering up the Triton Extreme (TEX), there was no backlight. After a minute or so, the backlight was back on. But when finally turning it on this morning, after standing in my basement for a couple of months without beeing used, it is now permanent 
I know a repleacement of the display may be the sulution, but that would be expensive (225 USD) and since the display is working fine, I decided to consult the good old Korg forum. There where quite a few incidents like mine, and also some suggestions including:
- Changing a fuse on the power board for the Display
- Changing the entire display
- Changing the light pulp (CCFL tube)
I decided however, to open my unit and investegate where my problem was. It turned out that the power board delivered the power for the backlight, so no fuse problem. Also changing the display is too costly. The only thing left was to go for changing the light pulp. The Italian poster MaxExtreme was very informative in supplying information about what type of cold cathode tube to use (details later) so I went to my local RS components and got one for around $20.
Bellow is how I did the operation...
My Triton, with no backlight
Main board of the Triton - I am very pleased with the build quality of this synth
Here we can see the Power for the backlight (The white and pink cables), The data (flat cable) and the Touch cable (to the left)
The display is out and ready for surgery
It was easy to remove the cover for the backlight. It is the long round "stick" in the bottom
The old bulp connected and I'm planning this very careful - trying to do exactly as Korg has done...
And thenm it has been replaced... Old one benneth the new and now connected bulp. Now all I need to do is put the whole thing back together.
My backlight is back! :o)
Everything is working again...
7 kommentarer:
By the way, here is the spec for the backlight replacement: white CCFL (cold cathode) is 100mm and long only volumes 2mm thick (Part number: BF3100-20B)
This has not happened to me ... yet , but very good walktrhough if it does, many thanks friend !!
I did everything you said but no luck for me.
staraxa I'm sorry to hear that. Send me an E-mail, and I'll see if I can help you.
Martin
The problem with my screen is that it is faded. It works, just faded. Do these lights dim with age or do they simply work/not work?
I know this post is from 10 years ago, so there's no much hope in getting a response, but I came across it while researching a solution for the screen on my Korg Triton Extreme taking several minutes to light up. I'm decent at soldering so I'd like to take on this project and the steps you've detailed here look helpful but the photos are no longer available. Martin, if you're still around, would you be willing to share those pics if you still have them?
-Ian
All links to images are dead.(((
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