[SOLVED]820-3476 PPBUS low no power

[dukefawks]

Resistance to GND on L7630?

 

[aurel476]

resistance to gnd 126.7 ohms on L7630

 

[dukefawks]

I honestly have no further ideas. This thing got fried by a voltage spike so could be anything, sorry.

 

[aurel476]

Thanks anyway, just a question not link with board.
Why cpu vcore never shorted I see many post you said not possible cpu vcore shorted have you explanation if not long please

 

[dukefawks]

Where did I say CPU Vcore is never shorted? It is common to have a low value of 2 Ohms there and that is then mistaken for a short.

 

[aurel476]

It seems to me i was not sure, ok i’ve understand
Thanks

 

[aurel476]

Board power on battery only chime and display ok batterie charge
replace isl and checked resistance area 17/18 3.4ohms and 27/28 20.1ohms and R7125 ok
tried another charger good same problem
no startup from charger tried short smc_onoff_l work on battery only

 

[dukefawks]

What is PPBUS voltage on charger? Green/orange light present? Using a 60W or 85W charger?

 

[aurel476]

60w
i put to trash all my 60w magsafe 2 (buy on ebay seem guenine apple logo but pretty sure this fucking fake charger chinese (exactly same design of genuine).

I bought charger from apple store everything work perfectly


I can't remember Sticky "stop using bullshit charger" not present on the forum for check if charger is genuine is smc_adapter_en 3.33V ?

 

[dukefawks]

SMC_ADAPTER_EN only will go high if the correct or higher wattage charger is connected. So this board works now?

I hope you bought a 85W charger as this is the only one you need for testing.

 

[aurel476]

This bord work now thanks solved

i Will bought 85w