RE: DUO R, GAME CD'S LOADING ISSUES ( SOMETIME GOOD, SOMETIME BAD)

whitecatangel · 03/19/2012, 09:25 PM

HI mates here,
Im from Australia, seems there are not many pce guru in OZ, just really need help here, any input are much appreciated!

i got few duo-r , duo rx consoles, which was bought with new lens replaced , rgb/svideo modded, from japan , all consoles read games in japan prefectly , when they arrived in my hand in Australia, they just dun work....
so I hv to open the consoles, follow all info. here, adjust the pots , then i got them read games all gd, red book also fine WHEN the console cover is opened., When i put cover back on, then it is not working properly..like getting cracky noise in music, work harder to read disc etc. can any guru tell me why??
after many days/ hours of work, one day it seems like I got the adjustment close console cover, screwed on, played 15-20 different games with no major issue( sometime still get small cracky noise from music) I usually use "sf 1 " as a reference game cd, and pay the ending track as that track most often get cracky noise when pots not adjusting properly. BUT after 2 days, i take the duo-r out , spin the games again, it seems not working as good as b4!!!
holy shit, any guru here has the reference photo of where the pots are set on duo-r ?
( btw i do adjust the variable transistor on the cd drive as well)
cheers
darren from Sydney

thesteve · 03/19/2012, 09:47 PM

clean and regrease the gears and track rods in the cd mech

whitecatangel · 03/19/2012, 10:31 PM

hi my friend
all done already before, any other solution?

thesteve · 03/19/2012, 10:34 PM

look for anything rubbing/pinching when the cover is installed.
it should run exactly the same with or without the cover on

whitecatangel · 03/20/2012, 12:13 AM

thx , i will try further, and see how it goes

whitecatangel · 03/20/2012, 06:19 PM

hi thesteve, i hv followed the the adjust pots by ears n checked no rubbing inside , installed cover, hv the duo -r running for whole nite with different game cd's,(btw my duo-r always play normal music cd no issue at all) . this moring i start again , seems music gone, cracking noise issues is back again.....both of my duo-r are having same situation, wat may cause this creepy situation?
cheers

thesteve · 03/20/2012, 06:55 PM

the issue may not be cd read at all.
if the caps are failing n the audio circuit crackling that goes away after running for a while is common

whitecatangel · 03/20/2012, 09:22 PM

thx , steve, that make sense to me, but how come my duo-r plays normal music cd no issue at all? but when play game cd's, background music issues come up?
thx for all possible input
darren

thesteve · 03/20/2012, 09:27 PM

are your games CDR?

whitecatangel · 03/21/2012, 08:47 AM

no ,all my jap games are original (104 total). today i use my duo-r as cd player for 2 hrs, i found that it plays all track fine, but sometime has those cracky noises i hv tried all pots, seems cant get much better, which pot should i look at again?

whitecatangel · 03/21/2012, 09:30 AM

now i realised that my duo-r has trouble playing later track of cd

thesteve · 03/21/2012, 02:36 PM

i know which pot it is on the black duo, not sure on the R

whitecatangel · 03/21/2012, 07:30 PM

thx steve anyway, i will keep working on it , if i hv any break through, i let u now the outcme

thesteve · 03/21/2012, 10:51 PM

should be VR105

whitecatangel · 03/22/2012, 08:02 PM

hi steve
I realised, vr105 and vr102 both help reading tracks, now i can make the cd rom reading last track of cd with cracky noise... also there is a pot on the cd lens moving part( where cables connected to) that also help read more games

thesteve · 03/22/2012, 09:36 PM

vr105 affects mostly later tracking.
the pot on the lens is laser power (too much or too little causes read issues) CW to increase, typically dont touch.

whitecatangel · 03/23/2012, 07:55 PM

hi steve, any mate who have experiences...
Now I got my duo-r ( with new lens installed, greased, pots tuned) read cd till the last track( with noise when play last 2 tracks) load and play games , but some game plays perfectly, some often no red book, any idea how to get cd read track plays reliabliably without noise?
cheers
darren

thesteve · 03/23/2012, 09:35 PM

the only 2 possible causes are the laser sled (lens) getting stuck, or pots need adjustment.
look at the wires, with the lens all the way out and make sure they arent pulled tight

whitecatangel · 03/25/2012, 10:30 PM

hi steve
i have removed the "original good working lens" from my duo-rx to my duo-r( lens replaced), after simple pots tuning , all go good! It seems like the new hop m3 lens are not as good as the original lens from old days.....
I have another duo-r with s-video and region moded, bought with new lens replaced, also shows not reading cd correctly when arrived in Australia. I have 1 x duo-RX, 1 x duo-r with rgb moded, 1 x duo-r with s-video+ region moded) I move the original good lens to the "s-video duo-r ", I just can't make it perfectly sounds clean when plays last track... will keep trying...

thesteve · 03/25/2012, 11:09 PM

you are correct about laser performance (new VS original)
most of the new ones can be adjusted to perform well, it just takes more work. (some never work right)
i have bought 5 recently from 2 venders.
1 vender had much better workmanship in the assembly of the lasers than the other.
i had 1 no-go laser from each.
the better lasers were all set too bright to read CDR

whitecatangel · 03/26/2012, 09:16 PM

yo!! thx for confirmation about old/new lazer issues!! i thought it is strange...it took me 100+ hours to work out...damn

btw, where u get the good lazer? I might get some as trial

thesteve · 03/26/2012, 09:50 PM

the best ones i got are from "switch electronics" on ebay
the worst from another ebayer
on the ones from switch i had to turn the pot CCW about 1/8 turn to get them to read CDR, but they worked with stamped disks as received.

whitecatangel · 03/27/2012, 10:47 PM

thx steve,
Btw I just couldn't get my duo-r (s-video moded and fitted with good original lazer that works perfect on my duo-rx) to play the last track of cd without cracky noise, the best i got is just minised the noise.
Then I test with games discs, most games no problem from beginning till the end, but certain titles, have Back ground music issue, it loads the music, but the music will stop, while all sound effects and game plays no issue...
any further advices?
cheers

thesteve · 03/27/2012, 11:34 PM

is your spindle bent?
try a complete known good drive in it

whitecatangel · 03/28/2012, 08:04 AM

i did changed the whole spindle with lens unit!

whitecatangel · 03/31/2012, 06:00 PM

hi steve,for the update, after the best pot tuned(only last track has some cracky noise) i did, i just leave it like that for few days, now it seems no noise at all, and the games which has no music somtime , now seems ok, no music rate get very low l think the situation is like hifi equipment that has not been used for long time, it need a period of time to hv the parts run in again:-) , i will hv my post update if any other situations come up, wish this can be helpful for turbo fans who hv cd reading issues:-D