A1398 820-00138 Power on but No Charging no Green or Orange Light

[isa198585]

Can some one help with A1398 no Charge, and on dont get any light Green or Orange.

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

No light can be linked to the missing 3v42 rail. Check @ L7095 for PP3V42_G3H.

What is the voltage to ground.

The 3v42 rail is used to power the single wire LED & adapter circuit inside the power adapter.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

I have on L7095 for PP3V42_G3H 3.42V

[reformatt]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Measure L7630 to ground first, make sure the PCH isn't shorted. Magsafe is driven by the SMC so ensure you have PP3V42_G3H at L5001, PP3V3_S5_AVREF_SMC and SMC_RESET_L is high. If the SMC is running, you should at least have PP3V3_S5.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

L7630 to ground 1.05V
the PCH is not shorted.
PP3V42_G3H at L5001 is 3.42V
PP3V3_S5_AVREF_SMC is 3.29v
can´t find SMC_RESET_L my be your mean SMC_LRESET_L? I measured it on Resistor R2083 pin 2 and i get 0,00V.
and PP3V3_S5 3.30V

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

can´t find SMC_RESET_L my be your mean SMC_LRESET_L?

See attached.

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Your title mentions that the unit powers on. Is this correct ?

You are able to get a normal boot of this unit but just does not charge?

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

yes that rigth, Macbook booted normaly, but dont charge the Battery.
alredy changed Battery, and I tryedwith another Charge.

[reformatt]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Well that wasn't clear to me. No magsafe and no charge I interpreted as a dead unit. You will have greater chance of success with clear descriptions up front.

First, ensure you are using an adequately sized Magsafe 2 adaptor as 15" A1398 pull at least 4 amps to charge a battery. 85W adaptor is what you should be using. If you don't get any Magsafe status, then SMC won't enable charging.

Most common issue I see is burnt/pitted Magsafe connectors from using non-genuine chargers (sparking etc when plugged in) so try another Magsafe connector first. Troubleshoot your one-wire circuit (SMC_BC_ACOK from U7100, U7000/U7001 etc) if fault persists.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

SMC_RESET_L is 3.39V

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Well that wasn't clear to me. No magsafe and no charge I interpreted as a dead unit. You will have greater chance of success with clear descriptions up front.

First, ensure you are using an adequately sized Magsafe 2 adaptor as 15" A1398 pull at least 4 amps to charge a battery. 85W adaptor is what you should be using. If you don't get any Magsafe status, then SMC won't enable charging.

Most common issue I see is burnt/pitted Magsafe connectors from using non-genuine chargers (sparking etc when plugged in) so try another Magsafe connector first. Troubleshoot your one-wire circuit (SMC_BC_ACOK from U7100, U7000/U7001 etc) if fault persists.

Thank you so mouch, you was rigth, I change the Magsafe connector, and the Ligth is here.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

can some one say me, the macbook charging now, but I dont see charging symbol.
What can be problem?

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Measure the smbus line voltage to ground for each of the SCL and SDA pins on the battery connector.

Post each measurement.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

SCL 3,43V and SDA 3,43V

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

SMBUS line voltage is ok.

After some charge, can the laptop operate with only the battery? Does the laptop report the details of the battery?

# of charge cycles, etc.

[reformatt]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

Make sure you are using an 85W Magsafe 2 adaptor, and a known good battery. Often it's just a bad battery on these.

Pick your supplier carefully for MAC batteries. Most of the ones out there are complete garbage, especially anything marketed as genuine.

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

After reinstall OS, the Symbol is again here.

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

What symbol??

[isa198585]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

look this

[mon2]

Re: A1398 820-00138 Power on but No Charging no Green or Orange Light

So it is now working ?