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Liquid damage, Area U9701 and U7100.. This one already works but backlight appear slowly and with DIM backlight like photo show.
Already replace U9701, D9701, R9840, fix trace pin_24 _U9701 to pin1_C9796.
LCD connector looks well and already did 3 PRAM.
Any suggestion ?
Hey, after check all inputs and pull up resistors and compare with a working board i reached the conclusion that SMC have problems.
Replace again SMC and Now its working. But the main problem remains...
"This machine when i turn it off normally in osx and after that if i want to turn it on...
Returning to this one, now i don't have green light and PPBUS = 12.28V
Already replace 2 times SMC and U7100.
SMBUS_SMC_5_G3_SCL - 0.495 - Voltage = 3.4V
SMBUS_SMC_5_G3_SDA - 0.495 - Voltage 3.4V
SMC_RESET_L - 3.38V
ADAPTER_SENSE - 3.39V
This motherboard came with a little corrosion close to u7501, properly c7537, r7521, c7536.
But i think that corrosion it's not the main problem.
I found F7140 opened, and i noticed PPBUS it's shorted! when i apply 1V on PPB?S the PCH get's real hot more than usualy. I noticed to...
No liquid or components knock off!
when i plug the charger the motherboard beep 3x!
Already unplug all connectors trackpad, keyboard, etc. Same history no changes.
any ideas ? Can't find nothing related on posts...
First thing i did its try a new DC in!
while i was check the voltages i noticed that voltage on pin 2 was wrong. Common R7005 problem.
some times we look for the hard things and forget the basics!
Thank you Mr.while i was check the voltages i noticed that voltage on pin 2 was wrong...
This one, no liquid and no signs of corrosion or components knock out!
I don't have green light!
PPBUS - 1.3V
SMC_BC_ACOK - 0V
resistance 27/28 : 21 ohm
resistance 17/18 : 3.4 ohm
already replace U7000 2 times same history.. The motherboard already turn on 2 times...
Working on 820 3662, no signs of liquid or something like that. I was the first to open it and the board it's very clean!
This machine when i turn it off normally in osx and after that if i want to turn it on, the machine don't turn on... it's necessary to remove the battery, press for...
i regretted it few minutes after writing!! I'm so sorry M.Vali! yesterday i got angry whit my client and today i wrote this stupid text!! I feel a little ashamed of what i just did! My apologizes. I will never talk to you like that!
You always response in time in my posts and never failed me! i...
Hey 2informaticos, sorry for boring you but i need your help to build a bios! Please, can you try to build a new one from my old bios??
i wont bore you anymore related to Bios because i already bought a medusa 2! But only next week...
Thank you Mr.Vali! My doubt is were is Fsys area on this bios. in another post you say: " change Fsys area (Fsys <--> $SVS marking strings)"
But in this bios i cant find ?SVS ...
But i already decided that i will buy a medusa from Ccmizapper! I don't want take more time from you and me...