Messages

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

And after all this, my son trips over the power cord (1 minute into testing the fix) and snaps off the center pin of the DC power jack inside the machine.

Luckily it's an easy/cheap fix, but GRRRRRR! It still works with batteries though.

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

FIXED:

I found that the capacitor at CC702 looked a little charred. I replaced it and the screen instantly appears and the brightness works perfect.

Thanks for the help.

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

I know it's hard to tell from the pictures but all of the Caps are installed correctly and I've double-checked to make sure nothing was bridged or loose. This is for all of the Caps that are visible outside of the shields. I know everything should be replaced but from my understanding the caps under the shields have nothing to do with the video.

The two large silver caps in the white glue do appear to be original so I will try to replace those and see if that helps. It appears that whoever recapped this machine only did the caps outside of the shields, they did not do anything under the shields. With the exception of the two large silver caps I don't think they were replaced at all.

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

Yes I have a nice Fluke multimeter.

Please help me identify the video circuit. Is there a diagram, what parts make up this circuit and how do I test them? Were the links to pix I posted not what you were looking for?

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

Nope, changing the small capacitor at the top didn't do anything. I'm mainly posting my progress in case someone else has a similar problem in the future.

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

I actually have another working Turbo Express that we'll call #1, so I took it apart and put LCD #2 and system board #1 together and everything works. It does take 10 seconds to warm up and come on, but at least the LCD works! I guess I had better double check the cap job. I found a post that showed the little cap at the top is the video cap, but isn't there more than 1 cap for the video?

I also happen to have a cap kit on hand, so I guess I can change the little one out in the meantime.

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

Let's try this:





wayback.postimg.cc/1nBsTGtS
wayback.postimg.cc/FYXZ00n4
wayback.postimg.cc/bZXRQstV
wayback.postimg.cc/rdrmL5LD
wayback.postimg.cc/XZh30L7H

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

The file on my phone is 5mb and the max the forum will allow is 128kb, that 1/40 of my pic quality. If I cut it down that much, are you really going to be able to see anything worthwhile without the quality of the pic?

[Console Repair/Mod Center / Re: Turbo Express screen dim, but working. How to fix?]

That is the second set of batteries I tried. The multimeter confirmed they were brand new batteries.

[Console Repair/Mod Center / FIXED - Turbo Express screen dim, but working. How to fix?]

I bought a TE that somebody attempted to fix and actually did a decent job with the capacitor replacement, but the screen isn't working properly. The game loads and music works perfectly and if I turn the lights off in my room and hold it at an extreme angle, I can see everything on the screen just fine. Moving the brightness dial doesn't change anything whatsoever!

I thought maybe it was a backlight issue, but where I can see everything on the screen at the odd angle, I don't think that's it. I verified all batteries were above 1.6v so I know it's not a battery issue.

Where the brightness dial doesn't work, how do I go about testing from here? I checked the pot and my meter read 0 ohms all the way up to 5 as I turned it, if I remember correctly, so it appears the potentiometer is working.

Please help!

[Console Repair/Mod Center / Will any of these lcd's work as a Turbo Express replacement?]

I've been collecting and repairing retro stuff for a while now and while I can replace parts easily enough, understanding why some things work the way they do is a bit of a mystery.

I have lots of broken handheld systems with perfectly good screens. SP's, DS, DS lite, psp (too big, I know), game gear.....and would like to possibly use one of these screens until I can find the right 3.5" LCD for my turbo express. As I said, I'm not very knowledgeable when it comes to this type of thing, so that's why I'm asking. I'd love to learn more about this subject, reusing or repurposing lcd's. Any help is much appreciated.

[Console Repair/Mod Center / Re: Turbo express lcd replacement guide needed ASAP.]

How much for a board?

[Console Repair/Mod Center / Re: Turbo express lcd replacement guide needed ASAP.]

I'm going to try! I don't fully understand the wiring yet...

[Console Repair/Mod Center / Re: Turbo express lcd replacement guide needed ASAP.]

Well come on, get to it already!

[Console Repair/Mod Center / Re: Turbo express lcd replacement guide needed ASAP.]

Thanks, but I can't believe the lack of information there is on this mod. If I get my 3.5" screen installed and working, maybe I'll try and do a write up on it.

[Console Repair/Mod Center / Turbo express lcd replacement guide needed ASAP.]

I picked up a broken Turbo Express the other day and plan on recapping it, but the lcd needs replaced since it's cracked. I've spent a while searching Google and also found nothing in the modification section, where are the guides for upgrading the LCD to a 3.5"? I finally found 1 by using the search function, but all images were gone and replaced with Asian ads of some sort.

Please, someone point me in the right direction. It gets delivered in a few days and I'd like to make sure I have everything. I've already ordered a 3.5" lcd and a cap kit.

Thank you in advance!