Re: Macintosh - Various - Schematics - Boardviews
Thank you
Merci
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Motherboard PS5 EDM-030
Dear community
Playsation 5 (PS5) motherboard version EDM-030.
Looking under the microscope I realize that a component is missing in the red frame.
I don't have the schematic could someone tell me what it is in order to buy it?
Thank you my friends....Last edited by pascable; 03-09-2023, 02:25 AM.
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Re: 820-01958 MBA 13" '20 A2179 Schematics/bv request
I bought it. Je l'ai acheté.
PDF + BRD...
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Re: 820-01061-A bios
Dear friends
I intervene on this post because I managed to repair an iMac A1418 (820-01061-A) bought for parts and I turn around with the padlock.
I saw videos that explained how to program an EFI but where is the EFI on this logic board?
I can't find the schematics and BRD.
Usually EFIs are 8-legged and I only see one component like this on the board.
See attached visual....
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Re: MacBook Air 13 Retina 2018 820-01521-A
Since a while ago, I reballing the U3200 and I resoldered it.
It's good, I have the power supply on the U3200 and the U3100 but it remains at 5V.
I agree there is a short to earth but where is it? Where to look for it?
To smile
PS Je n'avais vu que c'était piernov. Je suis français aussi et suis fan de vos travaux.
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Re: MacBook Air 13 Retina 2018 820-01521-A
Reading this sentence and looking at the BRD I realize that the U3200 of my 820-01521-A is the master and the U3100 the slave.
But I have dismantled the U32OO, I ask for confirmation that I must buy a U3200 and weld it before continuing?
[url]https://store.rossmanngroup.com/index.php/za2-cd3215c00.html[/url]
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U3200 is the master while U3100 is the slave. The master is connected directly to the TBT ROM (U2890), while the slave (U3100) reads the TBT ROM firmware through the master (U3200). As a result, if the...
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Re: MacBook Air 13 Retina 2018 820-01521-A
I will study this carefully and thank you very much.
If necessary I come back to the forum.
See you soon
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MacBook Air 13 Retina 2018 820-01521-A
Logic board 820-01521-A
Dear all
When I plug in the USB tester I have 5V but I don't go to 20V so no starting.
After examining the 5V on the logic board I have short circuits on C7675, C7676, C7677. I had the L8570 burned out, replaced it and still no start.
I removed the IC U7650 and I still have the short-circuited, it seems to me that my problem is with the 5V but where?
Can someone help me please.
Looking forward to friends.
Pascal
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Re: A1990 820-01041-A no video
What is "flsh spi chip"?
Apple reference please and I will help you.
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Re: iMac 2014 27inch. No display or output. All 4 diagnostic leds are lit green
I rebelled one who had the same symptom.
I ask the customer if the four LEDs were on or not and I give you the info, if I have it, asap.
In my opinion a reballing will be necessary.
My client replied that he had all four LEDs on despite the GPU being rebellious.
Do you need the temperature curves to rebound?
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GPU search graphics card Mac Pro ATI Radeon
GPU search graphics card Mac Pro ATI Radeon
Hello friends
I have a Mac Pro ATI Radeon HD 5870 1GB graphics card.
GPU ATI 215-0735106 blistered, I have to replace it but I can't find it for sale.
WWhere to buy it?
Made :
aliexpress
Ali Baba
Seek
LRF
ebay
Thanks for your help if possible...
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Re: On the BRD NC ?
A very big thank you.
That's what I thought.
Nevertheless on the 820-2915B, the 492 of the GPU (U8000), pellet torn off, if I do not make a replacement leg, no display!
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On the BRD NC ?
Greetings all
On an Apple BRD broadview, are there points marked "NC" that this means please?
To the pleasure
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Re: A1990 820-01041-A no video
On my board there is an error. Pin 5 is denoted 6. It goes to pin 1 of the R8520 and it has 0V.
C8509 = 0V (no short circuit to GND)
C8510 = 3.38V + 3.38V on the 3 and 1 of the U8501
R8520 (without component, just solder point):
On the 1 = 0V
On the 2 = 0V
On the 3 = 0.2V not stable
On the 4 = 0.1V not stable
U8510 on pin 1 = 3.38V
U8501 on pin 5 (noted 6 on the boardview) = 0V
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Re: A1990 820-01041-A no video
I watch this in the morning and first of all, thanks for your help.
See you later.
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Re: A1990 820-01041-A no video
For 1 on C8509 (U8500) = 0V
For 2 on C8510 (U8501) = 3.3V
For 3 on R8520 pin 2 = 0V
For 3 on U8510 1 = 3.38V
For 4 on U8501 2 = 3.38V
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Re: A1990 820-01041-A no video
Could the fault come from a line other than:
PP3V3_S0SW_LCD (44)
PP5V_S0_ALSCAM_F (46)
PP5V_S0SW_LCD (45)
These are the pin numbers of the J8500.
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