hello i have a macbook 17" the graphic was short and the 1.8v line short i replaced the graphic and one mosfet which now the laptop powers on but does not detec ram it give me no ram beep which ever ram i use. all power planes are ok which signal do i check for ram ddr2 detect.
apple a1260 m88
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by a_p3rsonHi there,
I'm looking for anyone who might have information on Apple's embedded Apple Watch charging daughterboard, ID 820-02601. This is currently used by Anker in their Apple Watch charging products, but likely by other Apple partner brands as well.
You can see the board referenced in ChargerLab's teardown of the Anker Y1811 3-in-1 MagSafe cube - they discuss the "Apple Watch wireless charging circuit" about 2/3rds down the page. It's not pictured, but the board ID reads 820-02601-A, which sure sounds like Apple.
This daughterboard uses an interesting...-
Channel: Schematic Requests ONLY!
04-21-2025, 11:41 PM -
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by DynaxSCHi Folks
I'm looking for a extreme high current short killer solution for a reasonable cost.
I have an LGA1700 motherboard (ASUS PRIME Z790-P WiFi) where I exchanged the LGA socket already 3 times, and every time after the socket exchange I get a short of power supply lines VCORE (V variable) and VCCIN_AUX (1.8V).
After taking off the socket, the shorts dissappear again.
The soldermask on the socket is already partially demaged from the heat, so I have reconstructed the soldermask by manually painting the missing soldermask parts with a very small top of a...10-15-2024, 10:13 AM -
by GuestHello all!
Recently I've got a broken Macbook Air M1 2020 A2337 of eBay with a broken screen and not turning on issue.
After some tinkering I've found C5201 capacitor to be blown. This is where I hit a wall since I am a total noob in this area and have no idea what else to look for. C5201 is on one line with 3 more capacitors which visually seem ok, but beep on continuity mode and also both sides of all capacitors beep when tested with ground from the board. This to me sounds like a short, but I am not able to find what component is before the capacitors to test it.... -
by StephenI check PPBUS_AON and there is a short present on the line, the computer shows a short when testing for short to ground, so when I inject voltage into the line, I get 0AMPS so no short is showing up. I have replaced a blown cap on this board that exploded and tested for the short and it is now removed. Any suggestions? I tested voltage at the line when the fuses are connected and I am getting 1.2 Volts at the line.
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This specification for the HP ProDesk 600 G5 + Apple AirPods can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the ProDesk 600 G5 + Apple AirPods boardview and ProDesk 600 G5 + Apple AirPods schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any...09-12-2024, 02:30 PM
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