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

[whitecatangel]

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]

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

[whitecatangel]

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

[thesteve]

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

[whitecatangel]

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

[whitecatangel]

 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]

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]

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]

are your games CDR?

[whitecatangel]

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]

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

[thesteve]

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

[whitecatangel]

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

[thesteve]

should be VR105

[whitecatangel]

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