ok, first of - im following this guide;

http://www.xbox-scene.com/articles/dvd-twe...eak-philips.php
I have searched the forum already, and couldn't find any threads that answered my question. My question is this; what are the two connections that need to be measured?!

In this pic, is it the ones with red arrows??


Can someone please point out to me which points need to be tested, imo the guide doesn't address that element clearly enough.

Cheers

Figgy

i had the exact same problem. i asked and nobody ever replied :

ask in here.. maybe you will get a responce faster..

Xbox-Scene Online Web Community->Hardware Forums->General Hardware/Technical Chat

Moved

Hey figgy, be very carefull if u try this mod.
I messed up my phillips trying this mod. and i only turned the screw a tiny bit,
and it NEVER WORKED AGIAN.

And im NO NUBIE

He there, i wrote the tutorial with a friend of mine.

I don't know where you got the picture but it's not ok....

The red arrow on the right side is ok, the red arrow on the left is way out of line, the yellow arrow is pointing the right point to meassure!!! so please meassure between those points.

put 1 of your multimeter wires (don't know the name for it sorry!!) in the center of the pot, when you look at the pot from above you will see 2 point where it is soldered to the drive, one of them gives you a value of ohms, this differs sometimes it 350 ohms and another time it's 650 ohms. The value to get it working is between 490 and 510. try to get it as close as you can to 500 ohms. I did about 7 pot tweaks now, they all worked great and the one and only thing about it is USE A MULTIMETER WITHOUT IT YOU WILL F**K UP YOUR DRIVE!!!!!! keep me posted on your progress!!

Xcept

I want to adjust my pot , and my dvd is dead now (cd-rw still can read) , my current resistance is 700 ohms and can't setup it lower, can I adjust second pot, can it help.
Some one can fix it ?
sorry for my english,

I measured it from the two soldered legs of the pot which are placed on the bottom side of it. So i had to remove circuit board for every tweak!

QUOTE (xcept @ Sep 5 2003, 03:11 PM)

...the yellow arrow is pointing the right point to meassure!!! so please meassure between those points. ...when you look at the pot from above you will see 2 point where it is soldered to the drive, ...

Point 2
I am confused on where point 2 is.
When you say "pot from above", do you mean looking down over the drive or looking at the back of the drive (this would be looking down on the pot)?

Is it possible for someone to get a better quality picture with accuarat arrows that show the exact location of Point 2?
Thank you

1. Many agree that pot tweaking is not work the potential payoff (which isn't much) when you can stuff your drive pretty easily by doing it.

2. If you don't know what a potentiometer is, does, or how it's layed out maybe you shouldn't be trying to mess with it.

i used this tutorial, good tutorial, could do with more clear piccys though, but the thing i wanna say is , i managed to get the crap phillips drive to read a couple more media, but the end result was still the same, the drive ended up being knackered!!!, try this at your peri..........you have been warned, get rid of the phillips and buy a samsung, that is the best way.l

Hi $all,

As "krobby" already says, do not mess with a dvd drive if you do not know how to measure the resistance of a pot meter. That is also mentioned in the turtorial I wrote with "xcept" for tweaking the pot for phillips drives.

The 500 Ohms worked out very well for 7 phillips dvd drives I have tweaked so far.

Like in the tutorial:
A Pot meter is a variable resistor and thus measure between the wiper (screw)
and the second resistor (second point seen from the cable connector).

Thus:

* * <- this one and the screw.....
*

If you do not understand this or cannot measure it properly by now then please do not even continue and live with it...


Cheers.

I have to say, great tutorial! I will admit that i was pretty nervous doing the tweak, but i figured it was worth a try, as i have a lot of movies on CD and if it buggered up, then i could get a samsung as everyone keeps suggesting.

I tweaked my drive to a value of about 505ohm. It still reads DVD's and CD-RW's and it now reads almost all CD-R's. I still can't get it to work with TDK silver 80mins. Has anyone who's done this tweak had any problems with this media??

Like others have said, this tweak is almost impossible without a multi-meter. The Pot is too sensitive to use a simple quater-turn.

Just for interests sake, i just tried tweaking my drive a bit more to see if i could get it to read the tdk cd's. I have tried the following values (all in ohms):

763 <- Original factory setting
503 <- According to the guide
496
479
418
379
361
470 <- Current value (Couldn't be buggered fiddling with the stupid pot to get it back to 500).

My pot2 value stayed at 1037ohm

Unfortuneately even the lowest setting of 361 would not let me read the tdk media. The drive still works fine for all other media. Phew!

Unless someone else has had success with these, and they've done something different to me, i think i'll just call it a day. ;)

is someone had confirm yet what was the use of the pot #2 ?? is it like the PS2...one for CD's and one for DVD's ?

i tried the pot tweak and now my xbox doesn't read anything. is it possible to destroy the dvd by turning to much and if so how do you know if it's been destroyed?

also could some one post a picture or give a more detailed instruction on how to use a multimeter?

thanks in advance!

1. Yes it is possible to destroy your drive.. that's why people say "don't pot tweak unless you know what you're doing, you'll destroy your drive"

2. If you don't know how to use a multimetre you shouldn't be pot tweaking, since multimetres are pretty much the most simple thing ever.

using a multimeter probably is easy but since i've never done it can't know. maybe i can borrow one from a friend. hopefully someone will be nice enough to give more detailed instructions

QUOTE (Fant0m @ Oct 8 2003, 07:44 AM)

I have to say, great tutorial!.... .... Has anyone who's done this tweak had any problems with this media??

Thnx for this nice response.

Just wanted to let you know that we only use Princo DVD-R since they gave us the best results

Cheers,
sez

To the writers of the tut:

I want to try the tweak (doesn't read Princo's well) but now i 'am confused about the points.

Point 1 is the screw thats clear, but the thread doesn't contain the pic the starter of this topic is talking about.

So is the pic in the tut correct and if possible can you release a bigger more detailt one ore pm me one.

Tanx in advance can't read backups now and that suxxx

yep... a bigger picture of point 1 and 2 of the pot would help us all...
because from this pic :

it looks like both of the red arrow is pointing at the screw

I have been trying to figure this out for a few days now, the last post showed the pic from moe's tutorial and the bottom arrow is in fact pointing to a point UNDERNEATH the pot! Took a while to find this with the help of Exobex in another thread.

I will try and take a decent pic to post here.