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#21

Console Repair/Mod Center / Re: duo full of problems

Last post by rfernov111 - 02/23/2026, 01:20 PM

Awesome, thanks for the tip! Yesterday I noticed that the cd laser pot screw also doesn´t turn (any way) so I'm assuming the person that touched this also glued it -_-

#22

Console Repair/Mod Center / Re: duo full of problems

Last post by NightWolve - 02/23/2026, 12:55 PM

My biggest problem now is the cd :/
EDIT: Captured the problem https://1drv.ms/v/c/4b0117f8503301c7/IQCYNZaGSsuzQrV3zSFFDksLAR8HLqT9rehHggXNk4e36SU?e=oVUlTG

BTW, this is one of the few times I think I can contribute a solution to these sorts of problems: The grease on the laser slider pole is 33+ years old, well, what's left of it; it's mostly gone, dried up... You need to thoroughly clean up the pole/all moving parts with alcohol or something stronger, then apply fresh new white lithium grease!

When my US Turbo Duo started doing this - cutting off a BGM Redbook CDDA track halfway - I'd apply petroleum jelly which is all I had at the time, and it'd work a little longer. Not an ideal lubricant, but it worked. Anyway, it *might* be as simple as that for this, but obviously you had worse problems with that unit!

Protip: It helps if you unmount/free the motor & sprockets so you can freely slide the laser back'n'forth once you start applying new grease, then you can fully cover/spread it all around far better! But those screws are glued/tight, might be hard to free them, and something could break. Beware. But yes, this CDDA cutoff problem happens because the laser unit has lost its agility moving across the pole without any grease! The friction is much higher! So try this before replacing the whole laser/motor assembly.

#23

Console Repair/Mod Center / Re: duo full of problems

Last post by rfernov111 - 02/23/2026, 12:04 PM

Doh! You right, stupid typo. I meant the 6260 and I got the idea from the furrtek reversed lut yuv table (from https://www.furrtek.org/?a=pceyuv)

#24

Console Repair/Mod Center / Re: duo full of problems

Last post by thesteve - 02/22/2026, 10:44 PM

6280 doesn't handle image at all
The picture is rendered in the 6270 and scaled and colored in the 6260
6260 does have RGBSHV available at the chip

#25

Console Repair/Mod Center / Re: duo full of problems

Last post by rfernov111 - 02/22/2026, 08:47 PM

I was able to mess with the unit today again and after messing with VR103 (turning it more CCW) Rondo now plays the music non stop. The Ys issue still persists (I'm going to trust Steve and maybe try to find a replacement motor). VR102 is functional but looks horrible. Anyway, work in progress but apparently is progressing well. Thank you for your input Steve and thanks NIghtWolve for summoning him I'll come back soon-ish with more details/progress report.

In a side question: Steve, would you know how the Huc6280 digital DACs work? I'm under the impression they receive the 3 bits for each color and just scale them to send the signal but I'm not sure. I'm asking because I'm trying to make a RGB->YUV color lut on the OSSC (I kinda got it working but the image is kinda yellowish and I'm wondering if its the signal getting scrambled somewhere due to noise or maybe I'm misunderstanding the DACs). Thanks once again

#26

Console Repair/Mod Center / Re: duo full of problems

Last post by thesteve - 02/21/2026, 12:50 AM

Note this is a standard Sony cd chip set
Any cd player using this chip set should have the same adjustment procedure

#27

Console Repair/Mod Center / Re: duo full of problems

Last post by thesteve - 02/21/2026, 12:43 AM

Also note the pot under the 2 caps (vr103?)
It's all the way right and shouldn't be

#28

Console Repair/Mod Center / Re: duo full of problems

Last post by thesteve - 02/21/2026, 12:41 AM

Vr102 may still work
Set your scope sync to left and the pattern looks ok
Im thinking you vr102 is all the way right and should be about center
The getting stuck issue if I understand what you're talking about could be a bad tracking motor (seen it a few times)

#29

Console Repair/Mod Center / Re: duo full of problems

Last post by NightWolve - 02/20/2026, 10:01 PM

Hm, alright, I'll forward that to @thesteve (a PCE EE) and Keith Courage.

#30

Console Repair/Mod Center / Re: duo full of problems

Last post by rfernov111 - 02/20/2026, 04:17 PM

Wish I was in the US to get some professionals to do it :/ I'm in south america
I ended up fixing the audio and the caps (it was mostly leak capacitor on the board + bad traces).

My biggest problem now is the cd :/

EDIT: Captured the problem https://1drv.ms/v/c/4b0117f8503301c7/IQCYNZaGSsuzQrV3zSFFDksLAR8HLqT9rehHggXNk4e36SU?e=oVUlTG