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This iMac sometimes not power. When I plug to 230V 1 led is on. When press power sometimes iMac power and all leds are on and sometimes first led power off and iMac will not power. Already replaced the power board and same problem. COuld be some short in GPU or most time is board issue?

Bad U5110...

This board seem to be not liquide damage. No magsafe or magsafe only with chines adapters. PPBUS - 12.26V SMC_RESET_L - 0V Checked U5110 and arround is ok, no missing or corroded resistors/traces. VIN to pin 1,3 at 3.3V Next to check?

Somebody used m2 sata adapter on air 2011-2013 models? There are 3 different models. They work well?

It is posible to separate glass from screen? ​

What board need for parts for models 2016-2017? Boards for Air and Pro? 820-***** models?

No dropped, no liquide. Just turn off during the customer uses. As I said before, If I remove R8167 all rails appears stable except CPU core. What that means?

I compared other rails (in big coils) with another board and have same value in diode mode. CPUcore cycling too. Customer goes to Apple store to replace the screen and also said that mouse is chaotic and 3 days laters working with the Macbook, it turn off. I compared too U8000-U8080 all power...

PPBUS is 12.58V but goes to 12.50 for 10 seg and then to 12.33V for 1 seg. and back to 12.58V 3.3V S5 stable 5V and other rails pulsing each 7 seg. ISL and SMC area look clean and no liquide damage. SCL and SDA at 3.42V What is first? SMC, ISL or something else?

I can confirm that board works ok without SMS_INT_L

Was the diode. What a stupid error. Thanks

The solution is to put 0001 or it should works with 0005?

820-3462 no backlight I replaced LP8545 and the same. BKLT_EN - 3.09V LVDS_BKL_PWM_RC - 3.3V FB - 6V SDA and SCL - 3.3V VIN and VLDO - 5V VDDIO - 3.3V All 6 returns resistors 0ohm. And all them 0.648 to ground. PPVOUT_S0_LCDBKLT - 12.58V Image PRESENT

Got another 2914 boards and I replaced 0084 with 0005. Now I have image with lines. Should I move/add some resistors?

USB1 0 0L 0.584 0.558 USB2 0 0L 0.759 0.557 Red on ground L4600 and L4610 are ok. I replaced U4650. Still the same

I had short on 1 usb. I replaced C4617 and now short is gone. 5V present but mouse is off. Any idea?

U9600, right?

2017 model whats 820-**** the board?

This Air https://everymac.com/systems/apple/macbook-air/specs/macbook-air-core-i5-1.8-13-early-2015-specs.html has the same screen as A1466 2013 models?

Reflow is ok, or need replaced?