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[T3XA5360R3B3L]

Has anyone seen this issue with any 74850C drives or any other Liteon drives??

Both have been flashed with LT both with calibration data and without it..

Both will initially play backups with no problems, but then about 15-20 minutes after playing, both will start crapping out with unreadable disc errors.

Turn off the consoles for a while and plug them back in and they'll start playing game discs just fine and then over time start crapping out..

I'm suspecting the lasers are going out.. Neither one did I unplug the laser while flashing.. It wasn't something I was aware of until I came across some other threads about the manner..

Just wanted to see if anyone else has seen this behavior..

Oh and I've tweaked on the Cal. Pots as well on both drives.. with no benefits...

If it's indeed a laser issue, I'll order a couple of laser units to fix these 2 Liteons and put them in other machines that have Hitachi or Samsung drives..

This post has been edited by T3XA5360R3B3L: Feb 2 2010, 11:38 PM

[bbsal]

Its one of two things...

Laser... thats most likely whats wrong with them.

or

Bad media... could be depends on what brand your using and how you are burning them example..speed?

First of course check the media if that dont work then go buy two new lasers and you will be fine. (IMG:style_emoticons/default/biggrin.gif)

[T3XA5360R3B3L]

QUOTE(bbsal @ Feb 2 2010, 04:53 PM)

Its one of two things...

Laser... thats most likely whats wrong with them.

or

Bad media... could be depends on what brand your using and how you are burning them example..speed?

First of course check the media if that dont work then go buy two new lasers and you will be fine. (IMG:style_emoticons/default/biggrin.gif)

I use nothing but Verbatim DVD+R DL. The media works on all my other consoles, so I'm going to suspect it's the lasers..

[mattjk]

You try cleaning the laser also while you had it apart? im gunna presume you did

[shtewps]

Definitely the laser. No question.

I cant count the number of consoles if flashed and I NEVER thought this laser issue would happen to me. It didnt make any sense (and still doesnt) and I always figured it was other peoples hardware causing the issue.

Anyway, it happened to me last night for no reason at all. It happened to the only drive I have ever replaced a laser on as well (which is weird).

[BoNg420]

Maybe do a pot tweak on the laser and it will be better.

[Bukmop]

I think the very important question is:
Is this problem (that written here) related with LT fw or NOT???

[ace2000]

Ive just had 2 go down on me aswell, both brand new both with blown lasers, WTF is going on here..wheres the best place for liteon lasers? oh and I did NOT take the laser ribbon out of these but i never have and i have done tons without issue.. mmmm are we only getting this with the later drives? is it LT? i would have to hazard a guess no because the first one that came back had Non Stealth on it..I use jungleflasher 1.70 could it be this? anyhow off for a search........... (IMG:style_emoticons/default/sad.gif)

[T3XA5360R3B3L]

and update to this..

I just got a new laser unit for one of the Liteon 74850C drives and installed it.. No change whatsoever with the performance. It will play several games for about 10 minutes and then it will start giving unreadable disc errors.

I decided to downgrade to 1.6 non-stealth for this drive that I just put a new laser in.. interesting after 30 mins of playing the same game backup titles, I've not gotten any unreadable disc errors..

could it be that LT is not very good with the 74850C drives??

I've already did the cal pot tweak on the old laser while running LT and it didn't help..


*update*

I put the old laser back in and ran with 1.6 non-stealth... no problems at all with unreadable disc errors..

I'm starting to wonder if LT is having problems with the 74850C drives???

[ersatz]

What's the part number for the laser replacement? Mine is scratched up after using a dvd disc cleaners.

[T3XA5360R3B3L]

eBay link for replacement laser for BenQ and Liteon drives..

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...em=280366078198

[crowdogx]

i have 2 doing the same thing (dirty disc read errors) both flashed with Lt
using verbs made in singapore
one is coming back today for a pot tweek
so will see later

[syntaxerror329]

Remove the drive bottom cover and make sure both heat sink pads are installed. They conduct heat from two very important chip into the cover of the drive.

One should be on chip U501 (near the soldered wire pads with the 2 yellow 2 white, red and black wire)

The other is on the Mosfet U7 (right above the r707 point we probe on the 7xxxx series LO drives)

If those are missing you will experince the problems you are describing.

 

[pigbait]

ok same deal here i have 3 7485c with LT and same problem 10 mins in D.R.E flash back to 1.6 non stath i can play all day and all night. why are we not seeing so patches from C4E on this??

P.S I tryied flashing LT every diffrent way

P.S.S to BOXXDR my thermal pads are all good thats why 1.6 NS will work and and LT is not. the problem is with LT not the drive... even going stock is working fine.....

WE NEED A PATCH....

This post has been edited by pigbait: Feb 6 2010, 11:34 PM

[syntaxerror329]

QUOTE(pigbait @ Feb 6 2010, 05:09 PM)

P.S.S to BOXXDR my thermal pads are all good thats why 1.6 NS will work and and LT is not. the problem is with LT not the drive... even going stock is working fine.....

WE NEED A PATCH....

Hmmm, interseting. I have saved another user in the past that was just missing the pads. Was hoping that was all that was wrong here. I have not done too many LT hacks yet but all the ones i have done are happy so far.