Search results

Should I remove the shield to be sure if the liquid affected U3900? I thinks it is affected see the image

See shield above U3900

Hola Customer reported this macbook as dead, however we were able to turn it on. 9 out 10 times the mac turns on and boots ok, 1 time wont turn on, you need to try again and it turn on. I will reflow the affected areas and use the ultrasonic cleaner. You think this is the correct approach...

Yes, I was testing with its screen. Tested with a know good and I have video. Still wondering why I couldnt get external video ?

Sorry DP_INT_HPD: 3.3V (after a moment: 0V) Yes, I do get green/orange light with the burned jack and of couser with the good one to.

See attached the burnt chip on the jack. When chimes : PP5VR3V3_SW_LCD: 5.2V (after a moment: 0V) LCD_HPD_CONN: 3.3V (after a moment: 0V)

Forgot to mention: No liquid damage, just some dust and crap un some areas on the SMC side. (does not look like corrosion)

The Macbook came in for no video issue. I was able to get external video. I got 0V on backlight and screen voltage. When took out the board and connected to start measuring one the ICs on the Jack got burned, no sure why. I am testing with another jack now... Now I am not able to test the...

DIODE READINGS LDOs from U3100 PP3V3_UPC_XA_LDO: 0.493 PP1V8_UPC_XA_LDOA: 0.509 PP1V8_UPC_XA_LDOD: 0.472 PP1V1_UPC_XA_LDO_BMC: 0.500 LDOs from U3200 PP3V3_UPC_XB_LDO: 0.496V PP1V8_UPC_XB_LDOA: 0.509V PP1V8_UPC_XB_LDOD: 0.473 PP1V1_UPC_XB_LDO_BMC: 0.496 LDOs from UB300 PP3V3_UPC_TA_LDO: 0.506V...

UB300 PP3V3_UPC_TA_LDO: 3.3v PP1V8_UPC_TA_LDOA: 1.8v PP1V8_UPC_TA_LDOD: 1.8v PP1V1_UPC_TA_LDO_BMC: 0v

Hello. I have replaced both CD3215 that had liquid damage but same issue. The USB ICs that I replaced loop on 5V. The other USBC port (assumed ok) turn on and then off the USB C Metter. Any idea?

I mentioned: PP3V8_AON: 0V P3V8AON_PWR_EN_R: 5V (on R5710)

PP3V8_AON: 0.186V (diode mode) and 0.6KOwhm to ground

PPBUS_AON: 12.26V PPBUS_VMAIN_VIN_ISNS: 12.26V P3V8AON_PWR_EN_R: 5V

Hello I have this clean board stuck on 5V -USBC1 takes 0.165A -USBC2 takes 0.145A Not sure how to start with this M1. What is the equivalent to PP3V3_G3H? PP3V8_AON: 0V

Same issue -All "SPI Bus Series Termination" resistors in page 47 are ok. (All 22ohms) -tried this bios your provided and same https://drive.google.com/file/d/18m-YhIlNhX4Uf5njH8KHmRGZelvEXnD_/view Any idea? Thanks!

I replaced the SMC for one of the same model board but same issue. -No video on screen -No external video -Takes 800mA -CPU gets hot -Tried other BIOS (from the donor board) and same -No USB activity detected. Any idea?

Hello iMac 2011 Reballed the GPU 1 year ago, today returned because of distorted video so I reballed the GPU again. Now the imac wont boot, no video. LED501 is on. Fans spin super fast. Is there a way to know if the GPU is working? Thanks

Hello iMac A2115 2019 with board 820-01236-A, A few months ago i received this iMac, wont turn on. It was a BIOS issue, so I reflashed the BIOS with a file found online. I just changed the Serial number section on the file and the iMac worked okay. It came back and wont boot. This imac has...

Thanks