b0b69
Newbie
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« Reply #960 on: December 10, 2010, 03:32:39 PM » |
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hi all this is my first L93 and ive f***ed up pin 101 ive jumped to pin 2 on the switch so i could dump the firmware worked like charm was able to dump fw and flash with lt+ but it wont read disc's.think i need to jump to a point on the other side form 101 on the lt switch if this was where i should jump to here's a pic  By b0b69 at 2010-12-10 this is how i fixed it was able to dump and write firmware ok sorry if the image is to big after putting lt+ on i was getting open tray turned out i had mixed up the 2 white wire's after swaping them over drive is working sweet ps thank you dream your post's where invaluable for continuity checking |
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« Last Edit: December 10, 2010, 06:13:07 PM by b0b69 »
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b0b69
Newbie
Posts: 3
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« Reply #961 on: December 10, 2010, 04:49:59 PM » |
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sorted i had the 2 white wire's round the wrong way they came of the board when i was fafin about swapped them over and its working ok
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beremoka
Newbie
Posts: 7
Where are my glasses ? Ah, yeah, on my nose ...
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« Reply #962 on: December 10, 2010, 04:53:36 PM » |
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Lazarus is ALIVEEEEE.....I had a feeling about this one, searched through some old firmware dumps from the early days of R707 probing that I archived and I found it....it has changed 3 owners since....hehehe.....Thanks go to Dream and iateshaggy for the great work they're doing and for every person on the forum that helps in bleaky times....
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If it aint't broke, fix it !!!
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jojo1980
Newbie
Posts: 3
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« Reply #963 on: December 17, 2010, 02:12:27 PM » |
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Having a major problem here  . I read this topic from page 1 to 49 and tried everything u guys said but it isn't working for me. I have a short on the 1.8v pads. Measured everything and all the rest looks ok. I got 102.5kohm when i measure 3.3v to GND. Measured all the voltages points and everything is ok 3.3v 1.8v nothing is blown up as far as i can see. I can't find the short anywhere. When i boot the drive (only the pcb) the MT chip gets hot instantly and can't be detected or put into vendor mode (used the easy probe 2 solution). I added a pic which can be found at http://img257.imageshack.us/i/p1000042z.jpg/ or http://img257.imageshack.us/img257/2279/p1000042z.jpg as u can see there's nothing wrong with the 1.8v pads (not that i can see). Anyone knows how to solve this? I just need the key don't care about the drive  . Thnx.... |
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shadoom
Newbie
Posts: 7
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« Reply #964 on: December 17, 2010, 02:25:34 PM » |
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How to tell if the MT is burned @ Game over. Fix your board like i have drawn in picture. IF the resistance is 95-110 Kohm drive is fine you can dump it.
IF there is no resistance 0 ohm @ open circuit r207 is burned fix it, new zero ohm resistor or solder bridge.Burned Drives, Measure resistance 3,3V to GND if the resistance is low like 1 ohm - 20 ohm. First cut Pink line 1 and measure resistance 3,3V to GND if the resistance goes high 95-110 Kohms the drive is burned game over!! Second cut Blue line 2 and measure resistance 3,3V to GND if the resistance goes high 95-110 Kohms the drive is burned game over!!  To keep it short....received an Xbox with DVD powered upside down (here we go again), pin 101 has gone charcoal, so I started reading all that was posted here and....First, done the cuts, placed the jump wire R207 to C03, got 6 Ohms, went on with the new check...cut pink, got 1,6 Kilo...is it recoverable? Cutting Blue line (step 2) gives me 100k. Ok well I did that... I keep getting Low Ohm results which is good i think... But since I f***ed up pin101 there must be something wrong cuz my ck3 cant power the device.(short i guess) Can anyone tell me what i did wrong? Here the pics:  |
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iateshaggy
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« Reply #965 on: December 17, 2010, 02:50:16 PM » |
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~100k is good, not sure what low is since that isn't a number, but if you are significantly less than 100k, then you are probably screwed.
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shadoom
Newbie
Posts: 7
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« Reply #966 on: December 17, 2010, 05:17:42 PM » |
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~100k is good, not sure what low is since that isn't a number, but if you are significantly less than 100k, then you are probably screwed.
thanks for your answer somehow i got jungleflash to finally recognize the drive again and it also could eject everything worked fine... when i plugged it into the xbox i got 3 red leds though... after trying to turn it on with ck3 again... it wont work anymore edit: i think it might be a soldering point which got loose... but not sure |
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« Last Edit: December 17, 2010, 05:34:18 PM by shadoom »
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iateshaggy
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« Reply #967 on: December 18, 2010, 02:21:53 AM » |
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your picture has shorts in it, you gotta clean up your soldering.  |
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Dream
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« Reply #968 on: December 18, 2010, 02:24:24 AM » |
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3,3V to GND Resistances.
0 - 1 ohms short-circuit.
1 - 30 ohms burned MT chip
30 - 400 ohms maybe burned pin 122 tx/rx.
95K - 110K ohms Drive is OK.
20M - 30M ohms MRA 3,3V fix is not connected @ R207 to C03 jump wire.
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« Last Edit: December 18, 2010, 05:21:39 AM by Dream »
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shadoom
Newbie
Posts: 7
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« Reply #969 on: December 18, 2010, 06:40:43 AM » |
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dream and iateshaggy
seriously i have to thank you so much
you helped me a total retard to solder it back together even i messed it up so bad...
i cant believe myself but its working again and running flawless...
thank you so much... cleanign up the solder was all i needed to do
interwebz love for you both <3
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jojo1980
Newbie
Posts: 3
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« Reply #970 on: December 18, 2010, 01:52:31 PM » |
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If i cut the 1.8v pads so the chip won't get it anymore will i still be able to read the flash? 1.8v measured to the ground gives me a beep so there's a shortcut that i can't find and the mt chip heats up.... dream or ihateshaggy can u help me pls?
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Dream
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« Reply #971 on: December 18, 2010, 03:23:50 PM » |
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If i cut the 1.8v pads so the chip won't get it anymore will i still be able to read the flash? 1.8v measured to the ground gives me a beep so there's a shortcut that i can't find and the mt chip heats up.... dream or ihateshaggy can u help me pls?
No MT is burned so Game Over. |
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jojo1980
Newbie
Posts: 3
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« Reply #972 on: December 18, 2010, 04:24:20 PM » |
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Dream even when i measure the 3.3V to the GND and still gives me 102.5kohm it's still burned?
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iateshaggy
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« Reply #973 on: December 18, 2010, 11:42:00 PM » |
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ihateshaggy lol, been a while since i've been called this. if you wanna try it, try it, you definitely can't hurt it at this point. |
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Dream
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« Reply #974 on: December 19, 2010, 04:50:38 AM » |
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Dream even when i measure the 3.3V to the GND and still gives me 102.5kohm it's still burned?
1,8V line is burned in MT Chip. So you cant dump it. |
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sd-253
Newbie
Posts: 8
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« Reply #975 on: December 19, 2010, 10:35:43 PM » |
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Hi All This is my first post here. Be nice. This is the board that I stuffed up very badly (I think). I think I burned R207 and the voltage regulator (red marks). Do I have any chance of fixing this? I have a Blaster CK3. To run the Blaster CK3 I have to keep the LT switch. http://img64.imageshack.us/i/pcbside1.jpg/http://img225.imageshack.us/i/pcbside2.jpg/Please help me. I would like to make a contribution if this interests anyone. I had a problem with my soldering iron which is 25W without temperature control. So I built my own temperature control, I used a ceiling fan dimmer switch and an ordinary single power point. The picture is attached. Have a look at the solder tip which is thinned down to the size of a toothpick. I left the soldering iron on for five hours continuously. Look at the tip, it is just hot enough to melt the solder without burning the tip at all. If I can help anyone with this, please message me. http://img43.imageshack.us/i/heatcontroller.jpg/http://img839.imageshack.us/i/solsertip.jpg/Thanks |
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iateshaggy
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« Reply #976 on: December 19, 2010, 11:05:02 PM » |
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step one is removing the lt switch, your chances of doing it w/ only a soldering iron and not pulling more pads and traces up are slim to none. then once it is off we can see what is really going on and show you the right way to do it. do not power the drive again unless you check the solder joints to ground for continuity and you are sure there is none except for the ground point on the lt switch.
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sd-253
Newbie
Posts: 8
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« Reply #977 on: December 19, 2010, 11:37:32 PM » |
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Thanks for the quick replay
Lt switch coming of now , pic coming soon
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Dream
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« Reply #978 on: December 20, 2010, 01:22:59 AM » |
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sd-253,
That board is bad dont power it!! I think you have burned mt chip also you need pro help with this one.
Some one who knows what he is doing can tell you is it burned or not.
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sd-253
Newbie
Posts: 8
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« Reply #979 on: December 20, 2010, 01:27:32 AM » |
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