Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi Keeney123, dellxps15 and ibrahim03.
First i would thank you guy for the time you have passed on my problem. This forum like to be a very good place to be.
Secondly, i would sorry myself because i'm gonna can't continue this repair right now.
I am unemployed for 1 year already and I did not know at all what to look for work. This repair experience opened my eyes to the world of electronics and I now know what to get me for the future.
For that, thank you!
I would...
Hijo
Member
Last Activity: 03-13-2016, 09:02 AM
Joined: 02-20-2016
Location: Liège
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi keeney,
I'm sorry but i have searched and have find nothing where i say Q9806 have 9.69V on pin3.
Perhaps this made you on the wrong way ?
No, The lowest scale i have is 200.
Sry but i don't understand what is 'this' for you. Do you talk about R7120 ?...Last edited by Hijo; 02-29-2016, 01:53 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi
I have try to start the macbook with a mini display to hdmi adapter, there is no change.
Nice one, Pin20 was corroded with R7120. I have clean this space with 94°Alcohol and now we can see the pin20 and R7120 sux. (pic attached)
Edit: I've just broke R7120 by trying take continuity on it. I'm gonna wait to receive precision probes i have order, to take voltage, because the space between the elements is very small.
Ok thank you for the clarify....Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
For have a better understanding, I'm gonna retake all the measures here above.
Test Probes on Pin1, Part...: (Magsafe connected without battery, LogicBoard don't run)
[B]"G3Hot" (Always-Present) Rails[/B]
[U]PPBUS_G3H[/U]: 12.61V on Probe 1444
.-PP3V3_S5: 3.34V on Probe 1102
...-LPCPLUS_GPIO: 3.18V on Probe 622 (J5100, Pin30)
.-PPBUS_S0_LCDBKLT_FUSED: 12.6V Probe:1157
.-LCD_BKLT_EN: [COLOR="Red"]0.00V[/COLOR] on Probe 209
.-BKLT_PLT_RST_L:...Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
(With power on)
R8793 Have 0.00V on Pin1
(Without power on)
R8793 have 1071 Ohms and (820 to stabilize at) 1255uF
(on position 2000 on ohmmètre (200/2000/20K/200K/2000K))
for Q9806 I have
377 Ohms on Pin: 1,2,5,6 (PPBUS_S0_LCDBKLT_PWR)
378 Ohms on Pin: 4 (PPBUS_S0_LCDBKLT_FUSED)
0 Ohms on pin: 3 (PPBUS_S0_LCDBKLT_EN_DIV)
Can you confirm that i should take measure without power for Ohms ?
Thanks you...Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
R9731 & R9701 have 0.00 volt on each side. (running or not)
Q9807 have 8.71V on Pin3 and 0.00V on other pin. (0.02V on pin6 when logicboard running)
R9809 have 9.69V on Pin1 & 8.70V on Pin2. (running or not running)
Can you tell me how can i take measure for 147k and what is it please ?
thanks.
I think a prrobe is a way, a circuit. probes have the same name so, for example SMC_ONOFF_L is always on probe 1330.
Hope this answered your...Last edited by Hijo; 02-25-2016, 05:05 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
When you say both side, should i probe black on ground or black on one side and red on the other side ?Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Done.
Already done for first diagnostic, macbook start, no change.
MacBook start when shorted pin5 to Ground but then i have no acces to the coil. So i have shorted SMC_ONOFF_L (probe 1330 Pin1) to the ground (C5710, pin2, GND, probe1) to have acces coils.
L9701: Pin1: 0.00V (after unplug magsafe, on power off: 1032 to 600 ohms on pin2 then 330 to 440 ohms on pin1 and then, each times begin at 100 and stabilize at 399ohms on pin1&2)...Last edited by Hijo; 02-25-2016, 12:42 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Ok sry i wasn't understand what you mean.
I have shorted SMC_ONOFF_L (probe 1330 Pin1) to the ground (C5710, pin2, GND, probe1) , did the probe shorted have any importance ?
The Motherboard have start, fan spinning at maximum. So i rebuild it on the Mac, and test it but no change happen
Thanks for your help.
@keeney123: Thank anyways for your help and those manuals !
Last edited by Hijo; 02-24-2016, 06:43 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi, can u please tell me more precise where it's those two pads ?
I think this is somewhere around here, cercle in white are SMC_ONOFF_L circuit....Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
SO i have tested J6900 and have (magsafe only)
16.67V on PIn 1 & Pin 2,
0.00V on Pin 3 & Pin 4,
3.33V on Pin 5.
Thank for your help
Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi
I have already test 16.7V on those pin when magsafe is connected and green.
I think RTC battery is an super-capacitor on this macbook, no ?...Last edited by Hijo; 02-24-2016, 07:18 AM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Ok thank you.
I dont understand what you mean by 'shot is 001 002'..
L9701: Pin1: 0.00V, Pin2: 0.00V
L7260: Pin1: 3.34V, Pin2: 3.34V
L7220: Pin1: 0.00V, Pin2: 0.00V
L9560: Pin1: 0.00V, Pin2: 0.00V
L9510: Pin1: 0.00V, Pin2: 0.00V
L7030: Pin1: 12.62V, Pin2: 12.32V, Pin3: 0.00V
L8920: Pin1: 0.00V, Pin2: 0.00V
L7770: Pin1: 1.06V, Pin2: 1.06V
L7560: Pin1: 0.00V, Pin2: 0.00V
L7330: Pin1: 0.00V, Pin2: 0.00V
L6995:...Last edited by Hijo; 02-23-2016, 04:54 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Tanks for your answers !
@Keeney123: I dont have any port rgb or hdmi to test it. But the motherboard start as the same way when i unplug lcd. So i don't think LCD is the cause.
I'm gonna test your second method when i'm gonna rebuild the mac, but do you think this is the RTC battery ?
@rookieme: I have 0.4 Ohms from the ground to this coil (L8920) (Pin1 & pin 2)...Last edited by Hijo; 02-23-2016, 03:22 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Thank for your explaination keeney123 !
Hi dellxps15. I think i have already see your investgation on Macrumor forum. Thank to be here on my problem too.
So, i don't find out the VGA coil. From Rossmann vids i found that
But my understanding of his english is bad, but i learn
Can u please tell me where is the coil you are talking about in this pic ? (For a largest size: Right click -> display the picture.)
Thanks.
Note:...Last edited by Hijo; 02-23-2016, 10:53 AM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
@Keeney123: Oh sorry, i came from many forum and now i've forgets to tell some basics informations.
So, the system don't boot, in any way. The MB (MotherBoard) starts but no 'boing', black screen, no backlight keyboard (I have already check it, no corosion or anything else).
So motherboard start fans are spinning, hdd start but system don't boot, no sound, no display.
Thanks for your answers, i'm gonna watch out in those direction and come back.
I'm sorry for my poor english
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi, MB start always by the same way. With or without Ram. The HD is good i have recovery my data.
Motherboard disconnected to all (Hdd, lcd, keyboard..) and she ever start at the same way that i have explain in my first post..
thank anywaysLeave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Ok so.. If i'm in the good way by testing like i do, there is a list of test à i have done:
check magsafe (only) connected:
PPBUS_G3H: 12.61V on Probe: 1444 Pin: 1 (SMD.)
PP3V42_G3H: 3.44V on Probe: 860 Pin: 1 (SMD.)
P3V42G3H_FB: 1.25V on Probe: 1540 Pin: 1 (SMD.)
PP3V3_S5: 3.34V on Probe: 1102 Pin: 1 (SMD.)
PP1V2R1V05_S5: 1.06V on Probe: 929 Pin: 1 (SMD.)
PM_SLP_S3_L: 0.00V on Probe: 1162 Pin: 1 (SMD.)
PM_SLP_S4_L: 0.00V on Probe: 1528 Pin: 1 (SMD.)...Last edited by Hijo; 02-22-2016, 05:57 PM.Leave a comment:
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Re: MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
I think i have understand how to take mesure, please tell me if i'm wrong.
I have passed test for PP3V42_G3H and P3V42G3H_FB like this:
This is circuit of P3V42G3H_FB:
So i have placed my black probe on ground (usb) and my red probe on red circle like this:
Then i have tested PP3V42_G3H, same way -> Ground on usb and red on red circle here:
Iff i'm in the good direction by testing like this, i have:
PP3V42_G3H :...Leave a comment:
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MacBook Pro 2.66Ghz mid2009 MB 820-2523-b to repair
Hi to all.
The motherboard starts when i press the power button, and then restart itself after 10sec. After the MB restart itself: -When the magsafe connected the fan are spinning normaly, -When only battery connected, fan are spinning at the maximum (It rises gradually).
The magsafe look good, have green light and orange light when battery plugged.
So i would check PP3V42_G3H signal, but i really don't know how to do this safe and i'm a little bit scarryed.
Here is the schem and diagram: [url]https://1fichier.com/?9u8rkczfe6[/url]...
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