I managed to negotiate a better price on Quick 861DW, while supplies last, cheaper than ever! store.rossmanngroup.com/index.php/quick-861dw.html Your purchases from store.rossmanngroup.com are highly appreciated.
You ought to stick to the donor machines as often as possible: parts up front can be put out for sale, unlike donor boards, unless like me you like to keep examples around for reference. IMO, I think hunting for scrap is harder than pulling off a reel, but your own shop's organization may defy it.
TPS51980's enable pin is only an input so it couldn't pull SMCPMG2EN down. More likely the SMC controller was in some sort of safe state with those two power rails by briefly pulsing the TPS's enable pin to see if it would actually supply power to those two rails without damaging downstream components ("Soft Starting"). Also the TPS chip has a Power Good pin which is read back by the SMC chip. Semantics but still good call Louis!
Louis.. Just wanted you to know I have learned more from you in the past week than I have known in the past 7 years.... Your an inspiration and a breath of fresh air in the fog of repair! Thanks!
I love these videos even though I know very little about how you diagnose and repair these machines. And when (not if) my 2017 15" top-shelf MacBook Pro shits the bed, I'm coming to New York to see you for repairs. I wanna break it now just so I can come to the shop! Lol!
You're the best Macbook repairman, I ve got years watching your video. But I still conceive of an apprentice. I need your help with a similar problem. The motherboard is 820 - 00165 and was damaged by liquid on the Smc (u5000). Clean the area with isopropyl alcohol and remove the components with sulphate (C142y R195), replace them with one of the same value. The Charger does not give green light, and I have these readings: PPBUS_G3H=8.1v, pp3v42 _ g3h = 3.41v, PP5V_S5=0v, pp3v3 _ S5 = 0v, PPVRTC_g3h=3.41v. SMC_BC_ACOK=3.38v. Sys _ onewire = 3.39v. I don´t have smc _ pm _ G2 _ en. The reading in diode mode of this signal is 528. that you recommend me?
Please move to San Antonio Texas! I will help you, with plumbing you may need! please keep up the great videos i use your business mindset to help apply honest and evolving business techniques and skill to my business in plumbing repair.
The switching high/low of the signal could still have been the SMC. Given that the choice is between a readily available and easy to solder chip and the SMC... always try the easier one first.
Can you explain the process of replacing that chip in a bit more detail? You heated it up until the solder flowed and you could pull it off. Then you globbed flux on it and heated it up to reflow the existing solder/paste. Then you removed all the solder with braid ??? Then, with some flux still on there, you reapplied solder to all the pads. Then you placed the chip in the right spot with tweezers and heated it up until it flowed. Then you went over all the pads again with a soldering iron. Is that right or did I misinterpret something? I am most curious about why you reflowed the solder and then removed it with braid.
It probably just needed a reflow. But as these chips are cheap, it's usual to just ditch the chip in question and replace it with a new one. Possibly ruining the board with too much soldering on that spot doesn't worth the price of the chip if it's faulty though.
I have been watching alot of these videos, I find them very entertaining. But I honestly don't know anything about what is happening. I want to do this, how do I start?
I didn't say that eBiking was 'Evil' "evil", but I'll refine what I said: rushing to a gym on battery power to pedal a stationary cycle is... suspicious. Only YOU know whether the peripheral therapy for your upper torso is what's REALLY going on -
That voltage ought to be presEnt. Or was it ever prEsent? Hmm. Being not-absolutely-English-speaker I wonder what and when happened with NYkez when they stopped speaking Englisch? Yiddish, I suppose. Edit. What a shame for New-Amsterdam livery (sic).
In a recent video of Louis, he criticised Apple for removing the special SSD connector for recovery of data(there was the usual toxic apple hate in the comments unfortunately)l, but Apple has now introduced a new data recovery method with the T2 chip. Is this better? or was it a pointless change? Either way, does Louis' criticism still stand? 9to5mac.com/2018/09/20/apple-t2-data-recovery-transfer-imac-pro-macbook/
TPS51980's enable pin is only an input so it couldn't pull SMC_PM_G2_EN down. More likely the SMC controller was in some sort of safe state with those two power rails by briefly pulsing the TPS's enable pin to see if it would actually supply power to those two rails without damaging downstream components. Also the TPS chip has a Power Good pin which is read back by the SMC chip. Semantics but still good call Louis!
I managed to negotiate a better price on Quick 861DW, while supplies last, cheaper than ever! store.rossmanngroup.com/index.php/quick-861dw.html Your purchases from store.rossmanngroup.com are highly appreciated.
You ought to stick to the donor machines as often as possible: parts up front can be put out for sale, unlike donor boards, unless like me you like to keep examples around for reference. IMO, I think hunting for scrap is harder than pulling off a reel, but your own shop's organization may defy it.
You sir are a legitimately likable curmudgeon... Congratulations. I am a fan.
“I hope your PP bus is treating you well... And I hope it’s G3 hot.”
I hope I’m not the only one who chuckled...
You are the Bob Ross of board repair.
Bob Rossmann
Don't delay, watch Louis Rossmann's new video today!
TPS51980's enable pin is only an input so it couldn't pull SMCPMG2EN down. More likely the SMC controller was in some sort of safe state with those two power rails by briefly pulsing the TPS's enable pin to see if it would actually supply power to those two rails without damaging downstream components ("Soft Starting"). Also the TPS chip has a Power Good pin which is read back by the SMC chip.
Semantics but still good call Louis!
Louis.. Just wanted you to know I have learned more from you in the past week than I have known in the past 7 years.... Your an inspiration and a breath of fresh air in the fog of repair! Thanks!
Ty Carter foreal i dont even own apple products and i find his vids informative and relaxing
Thank you!
What i learned form this channel:
Soak everything in flux, and NEVER buy crApple...
I know jack and shit about any of your videos subject matter, however, i find myself still continuing to watch. I find it fascinating.
I love these videos even though I know very little about how you diagnose and repair these machines. And when (not if) my 2017 15" top-shelf MacBook Pro shits the bed, I'm coming to New York to see you for repairs.
I wanna break it now just so I can come to the shop! Lol!
Thank god for rossman repair
You're the best Macbook repairman, I ve got years watching your video. But I still conceive of an apprentice. I need your help with a similar problem. The motherboard is 820 - 00165 and was damaged by liquid on the Smc (u5000). Clean the area with isopropyl alcohol and remove the components with sulphate (C142y R195), replace them with one of the same value.
The Charger does not give green light, and I have these readings:
PPBUS_G3H=8.1v,
pp3v42 _ g3h = 3.41v,
PP5V_S5=0v,
pp3v3 _ S5 = 0v,
PPVRTC_g3h=3.41v.
SMC_BC_ACOK=3.38v.
Sys _ onewire = 3.39v.
I don´t have smc _ pm _ G2 _ en. The reading in diode mode of this signal is 528.
that you recommend me?
Please move to San Antonio Texas! I will help you, with plumbing you may need! please keep up the great videos i use your business mindset to help apply honest and evolving business techniques and skill to my business in plumbing repair.
I think you keep the flux company up in running.
I have literally no fucking idea what is happening here... yet it's oddly satisfying.
Did I hear you say peubs. He's jumping up and down because he's happy? You make this look easy.
The search functionality on your site seems to work perfectly fine for me. pressing enter and using the auto complete
Here comes a new video from Louis Rossmann!
learning many things from u, thanks... boos
"The enable signal was fluctuating up, down, up, down, up, down" 9:51
My inner 12-year old has never laughed harder. :-))
Rossmann Group .com needs a jingle.
Pubes and poor soldering. ROFL
The switching high/low of the signal could still have been the SMC. Given that the choice is between a readily available and easy to solder chip and the SMC... always try the easier one first.
1:30 "that's not corrosion that's just pubes and poor soldering" 😂
great video !
Have you ever thought about doing the voice for commercial ads? I mean, other than for your own products and services?
DAMN! I learned something new. Have a safe trip sir. Don't forget to get cat food on the way home.
Can you explain the process of replacing that chip in a bit more detail?
You heated it up until the solder flowed and you could pull it off.
Then you globbed flux on it and heated it up to reflow the existing solder/paste.
Then you removed all the solder with braid ???
Then, with some flux still on there, you reapplied solder to all the pads.
Then you placed the chip in the right spot with tweezers and heated it up until it flowed.
Then you went over all the pads again with a soldering iron.
Is that right or did I misinterpret something?
I am most curious about why you reflowed the solder and then removed it with braid.
hi have a problem that does not give me this signal S5_PWR_EN .. does not have any variation can be smc?
One Paul of flux appears to be less than one MilliPaul of flux 🤔
(or I'm totally misremembering what video a millipaul came from)
No, you're right. It was a lot less than a millipaul. I remember that video too, but I forget which one it is.
That is not corrosion... just pubes and poor soldering. - Louis, 2018.
Louis is the man!!!
If it was poor soldering and liquid damage, would that require new chip, or could it just be cleaned & resoldered?
It probably just needed a reflow. But as these chips are cheap, it's usual to just ditch the chip in question and replace it with a new one. Possibly ruining the board with too much soldering on that spot doesn't worth the price of the chip if it's faulty though.
I assume "3V3" "3V42" etc. just mean 3.3v 3.42v etc.
Yes. V is a decimal point in apple land.
I have been watching alot of these videos, I find them very entertaining. But I honestly don't know anything about what is happening. I want to do this, how do I start?
4:59 More like: "Winner winner, wickin' dinner".
PuiB-Ic1 is prescient clearly.
Louis, if Apple releases a car, will you service them?
Do you use a Paul™ of flux, or are you using a kiloPaul™ of flux?
PrezEnt? Soddah?
I didn't say that eBiking was 'Evil' "evil", but I'll refine what I said: rushing to a gym on battery power to pedal a stationary cycle is... suspicious. Only YOU know whether the peripheral therapy for your upper torso is what's REALLY going on -
No mr repair man. I didn't spill anything on my macbook. That corrosion doesn't mean anything.
Why do people buy apple if they know its going to be defective? The prices are crazy high for a macbook with 128gb of storage and cut down CPU.
I swear Louis just loves to use flux in excessive amounts to just mess with everyone.
That voltage ought to be presEnt. Or was it ever prEsent?
Hmm. Being not-absolutely-English-speaker I wonder what and when happened with NYkez when they stopped speaking Englisch? Yiddish, I suppose.
Edit.
What a shame for New-Amsterdam livery (sic).
Ah, the eternal struggle between finding A problem and finding THE problem
I see SOMEBODY got their flux restocked
Just the right amount of flux
You sound a bit like a deadpool
i think paul s could solder better while drunk than whoever soldered that chip on.....
" but hihi doesn't care "
In a recent video of Louis, he criticised Apple for removing the special SSD connector for recovery of data(there was the usual toxic apple hate in the comments unfortunately)l, but Apple has now introduced a new data recovery method with the T2 chip. Is this better? or was it a pointless change? Either way, does Louis' criticism still stand?
9to5mac.com/2018/09/20/apple-t2-data-recovery-transfer-imac-pro-macbook/
why does he use so much flux
Needs more flux.
0:07 Dream Theater fan?
Yes!
Louis Rossmann MA MAN!
Is Louis a fan of Dream Theater?
He's mentioned them before, seems so!
Yes!
Louis Rossmann My man!
John Myung... silent as ever.
TPS51980's enable pin is only an input so it couldn't pull SMC_PM_G2_EN down. More likely the SMC controller was in some sort of safe state with those two power rails by briefly pulsing the TPS's enable pin to see if it would actually supply power to those two rails without damaging downstream components. Also the TPS chip has a Power Good pin which is read back by the SMC chip.
Semantics but still good call Louis!