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This model turn on without battery. Just need a genuine charger.

R8319 corrosion. Nothing more

This macbook pro charge the battery max to 30%. I have no new battery to test. Can I check something in the board?

Macbook comes again. This time I replaced U7100 U7300 both chips are bad. and works ok. Customer told me this happend when connecting sound card throught the usb port and in several seconds macbook die. Any idea what could be that problem? Customer use china ac adapter.

PPBUS - 8.59V P3V3S5_EN_R - 3.3V EN - 3.3V VREG3 - 0V (no short there) VREG5 - 0.32V (no short there)

820-00164 board not liquide damaged. PP3V3_S5_REG_R - 0.54V In diode mode - 0.400 and 0.366 I replaced U7501, C7592 and Q7560 Still 0.54V I injected 3.5V there and no consum at all - 0V Thanks for help.

Q5300 1-0v 2-0v 3-0v 4-11.24v 5-11.13v 6-11.02v Any idea? I replaced Q5300 2 times.

PBUS_S0_VSENSE shoud not be in 0V only with battery??

When only with battery, it runs slowly. HS_OTHER_IOUT - 1.27V PBUS_S0_VSENSE - 0V ?? PBUSVSENS_EN_L - 11.17V I replaced Q5300 and U5410 as they were corroded. Could be something more? ASD errors: Battery RA table test Value over 2K found in R-a 0-7 VP0R pbus test

3 beeps. PP1V5_S3 - 1.5V PP3V3_S0 - 3.33V PP0V75_S0 - 0.74v PPVCORE - 1.11V Tried different ram and both slots of course. no liquide damage. Any idea?

iMac 21 2012 and 2014 screens are compatible?

Replaced U7100 and problem solved. THanks

This board power and has all rails except CPU core. On U7400 pin 1 is 0V I lift R7974 and on both pins still 0V Board has stable 3.3V, 1.5V, 12,57V, 1,05V, 1.8V. No liquide damage. Customer told that happend when connect sound card throught the USB. ---------------------------------- L7100 -...

I tested 2014 screen on 4924 and works, but need to load os x and take 1 minute.

I have 5V but is stll not working. Any idea?

Not possible with usb?

I have here this iMac to reinstall https://everymac.com/systems/apple/imac/specs/imac-core-2-duo-1.83-17-inch-specs.html I tried to put 10.6 but didnot recognize the usb pen-drive. What OS X I can install?

I think you dont understand what I did. 1. Board pulsing but I removed R8167 and now NOT pulsing anymore. 2. I have all rails 5V, 1.2V and 1.05 present. 3. CPU missing These rails appear only when I removed R8167. What that means?

This board is liquide damage arround U7870 and resistors. Pulsing. Only S5 voltage present I removed R8167 and I have all coils present volatge but no cpu core. U7870 generate 1.5V stable. U3210 looks good no corrosion there. Far from corrosion. R8162 no istalled on this board and 0V on both pins.

PPbus seems low at 12.40V Check sda and scl if 3.3V are presents. Smc_reset?