Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
I tried booting with wired connection, it connects but then when the loading apple appears, a few seconds and it turns off....
poldo
Member
Last Activity: 02-11-2025, 09:54 AM
Joined: 03-15-2020
Location: Roma
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
source (1-2-3) & drain (5-6-7-8) = S+ and D- = O.L
source (1-2-3) & gate (4) = S+ and G- = 06,37MΩ
gate (4) & drain (5-6-7-8) = G- and D+ = 07,43MΩ...Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
With these values I think the battery should charge, or am I wrong?...Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
If I boot with hd, the laptop shuts down when it tries to load the operating system.
If, on the other hand, I try to download the operating system from internet recovery mode, the laptop does not turn off but i get the following message: [B]Internet Recovery Error -1007F[/B]Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
If I boot with hd, the laptop shuts down when it tries to load the operating system.
If, on the other hand, I try to download...Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
sorgente (1-2-3) = [B]12,31V[/B]
gate (4) = [B]12,28V[/B]
drain (5-6-7-8) = [B]0,132V[/B]Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
sorgente (1-2-3) = [B]12,31V[/B]
gate (4) = [B]12,28V[/B]
drain (5-6-7-8) = [B]0,132V[/B]Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
sorgente (1-2-3) = [B]12,31V[/B]
gate (4) = [B]12,28V[/B]
drainLeave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
pin04= 270KΩ
pin06= 288KΩLeave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
I'm sorry, I just wanted to tell you that the measurement I took was performed without the power supply inserted.
With the power supply inserted and the laptop switched off, the values change:
pin01= 0V
pin02= 0V
pin03= 0V
pin04= 3,44V
pin05= da 0,009V a 0,030V (in ciclo continuo)
pin06= 3,44V
pin07= 0,132V
pin08= 0,132V
pin09= 0,132VLeave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
I state, low battery for a long time.Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
pin01= 0V
pin02= 0V
pin03= 0V
pin04= 0V
pin05= 0,009V to 0,030V (in a continuous cycle)
pin06= 0V
pin07= 0,132V
pin08= 0,132V
pin09= 0,132VLast edited by poldo; 02-27-2022, 02:43 PM.Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
Hi, how much do you advise me to inject?Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
Now the laptop has other problems:
It does not charge the battery and the charge LEDs do not work.
I ran Apple Hardware Test online and found the following errors which I show in the picture....Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
Repair Update:
The damage suffered by this card is the result of a liquid leaking onto the laptop.
After discovering that the L9004 ferrite bead was burnt and a square was blown, I proceeded to replace and rebuild the square and the track.
I also replaced the adjacent C9015.
Furthermore, the L9008 also seemed to be discontinued and I proceeded to replace it along with the C9010.
I am attaching a photo of the completed repair.
The result was positive, LVDS line restored....Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
[url]https://www.arrow.com/en/products/bk...tv/taiyo-yuden[/url]
* sarà l'ideale per L9008
o semplicemente per l'acquisto:
[url]https://www.arrow.com/en/products/nc[/url].. .nic-components
* valutato a 2 A, quindi funzionerà sia per le posizioni L9008 che per L9004
These two in Italy are not availableRe: Macbook Pro 13" 820-3115-B (help...<br /> * sarà...Leave a comment:
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Re: Macbook Pro 13" 820-3115-B (help for LVDS line components)
Ciao lun2,
grazie mille per i vostri suggerimenti e indicazioni.
Purtroppo ho provato ad acquistare i prodotti che mi consigliate su Arrow ma è richiesta la partita IVA che non ho.Leave a comment:
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Macbook Pro 13" 820-3115-B (help for LVDS line components)
Happy New Year to all,
I have a 2012 macbook pro 13 motherboard 820-3115-B with the following problem (due to water damage): it starts up normally but does not go on screen. I checked the LVDS CONNECTOR line and found the following damaged components:
L9004: FERR-120-OHM-1.5A 0402-LF
L9008: 120-OHM-0.3A-EMI 0402-LF
In the repair I would prefer to replace the adjacent capacitors as well: C9010 and C9015: 0.001UF 10% 50V X7R-CERM 0402.
On Mouser I tracked down the following components respectively for:
L9004 with the following... -
Re: iMac mid 2010 - black screen on startup -
Hi,
here I am again, still feverish, but anxious to understand what the hell is wrong with this screen.
In recent days, despite myself, I have been able to repeatedly try the game of roulette but unfortunately without results.
At the moment I can only give you information on the status of the LED backlight voltages (cluster of black wires) only when the display is dark:
PIN1 = 0,017V
PIN2 = 12V
PIN3 = 0,006V
PIN4 = 12V
PIN5 = 0,018V
PIN6 = 12VLeave a comment:
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Re: iMac mid 2010 - black screen on startup -
In my case everything has now been tested, all that remains is the display.
As for the display: I tested the led line with positive result. And also the LVDS cable with success.Leave a comment:
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Re: iMac mid 2010 - black screen on startup -
Hi, I had already read the discussion of the "Misterkeeks" problem, the problem he encountered is identical to mine. Unfortunately they did not come to any conclusions.
I can confirm that if illuminated by the flashlight the display is working....Leave a comment:
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Re: iMac mid 2010 - black screen on startup -
Hi mon2,
the graphic card is new (warehouse stock) and I was able to test it with a working display with which it did not give problems....Leave a comment:
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Re: iMac mid 2010 - black screen on startup -
D13 and D16 theme song = KJE X9
I can't find the datasheet
If it was necessary to replace them, what would you recommend.Leave a comment:
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