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現在のバージョン作成者: Dan ,

タイトル:

820-2532 logic board problem!

テキスト:

Hello Guys,
 
I have a weird problem with this board I'm working on. (820-2532)
 
The unit powers on with magsafe only
 
The unit powers on with Battery only
 
When magsafe and battery are in together the green light will start flashing fast and the unit will not charge the battery (No amber light) then unit will shut down.
 
Things I did so far;

-Checked
* Checked all current sensing resistors on battery and magsafe side. All good even the shunt resistors are good.

-Changed

* Changed
out the U7000 ISL6258 chip three times.

-Changed

* Changed
the SMC chip once

-Checked
* Checked all current sensing resistors on battery and magsafe side. All good even the shunt resistors are good.

-Changed

* Changed
out the U7000 ISL6258 chip three times.

-Changed

* Changed
the SMC chip once
 
Things I noticed;

-When
* When I remove the shunt resistor for the battery side and plug all devices into board (battery, Adapter), the battery will charge. (amber light).

-Voltage

* Voltage
on Pins 17 and 18 on ISL6258 = 18V. Other boards say 12V

-When
* When I remove the shunt resistor for the battery side and plug all devices into board (battery, Adapter), the battery will charge. (amber light).

-Voltage

* Voltage
on Pins 17 and 18 on ISL6258 = 18V. Other boards say 12V
 
Whats up with that? Thought U7000 chip was bad, so I changed it three times! No good.
 
Any suggestions would help! Thanks!
 
-
 
=== Update (01/15/2018) ===
 
Hello Guys and thanks for the fast response.
 
@danj - Yes, I am working off a Board view and schematic
 
@oldturkey03 - Sorry other boards are 12.6V
 
Pin 3-4.43V
 
Pin 12-3.42V
 
Pin 19-5.10V
 
Pin 20 5.10V
 
Pin 27- 18.29V
 
F7040=18.29 both sides

デバイス:

MacBook Pro 15" Unibody Late 2008 and Early 2009

ステータス:

open

編集者: Roger ,

タイトル:

820-2532 logic board problem!

テキスト:

Hello Guys,
 
I have a weird problem with this board I'm working on. (820-2532)
 
The unit powers on with magsafe only
 
The unit powers on with Battery only
 
When magsafe and battery are in together the green light will start flashing fast and the unit will not charge the battery (No amber light) then unit will shut down.
 
Things I did so far;
 
-Checked all current sensing resistors on battery and magsafe side. All good even the shunt resistors are good.
 
-Changed out the U7000 ISL6258 chip three times.
 
-Changed the SMC chip once
 
Things I noticed;
 
-When I remove the shunt resistor for the battery side and plug all devices into board (battery, Adapter), the battery will charge. (amber light).
 
-Voltage on Pins 17 and 18 on ISL6258 = 18V. Other boards say 12V
 
Whats up with that? Thought U7000 chip was bad, so I changed it three times! No good.
 
Any suggestions would help! Thanks!
 
-
 
=== Update (01/15/2018) ===
 
Hello Guys and thanks for the fast response.
 
@danj - Yes, I am working off a Board view and schematic
 
@oldturkey03 - Sorry other boards are 12.6V
 
Pin 3-4.43V
 
Pin 12-3.42V
 
Pin 19-5.10V
 
Pin 20 5.10V
 
Pin 27- 18.29V
 
F7040=18.29 both sides

デバイス:

MacBook Pro 15" Unibody Late 2008 and Early 2009

ステータス:

open

オリジナル投稿者: Roger ,

タイトル:

820-2532 logic board problem!

テキスト:

Hello Guys,

I have a weird problem with this board I'm working on. (820-2532)

The unit powers on with magsafe only

The unit powers on with Battery only

When magsafe and battery are in together the green light will start flashing fast and the unit will not charge the battery (No amber light) then unit will shut down.

Things I did so far;

-Checked all current sensing resistors on battery and magsafe side. All good even the shunt resistors are good.

-Changed out the U7000 ISL6258 chip three times.

-Changed the SMC chip once

Things I noticed;

-When I remove the shunt resistor for the battery side and plug all devices into board (battery, Adapter), the battery will charge. (amber light).

-Voltage on Pins 17 and 18 on ISL6258 = 18V. Other boards say 12V

Whats up with that? Thought U7000 chip was bad, so I changed it three times! No good.

Any suggestions would help! Thanks!

-

デバイス:

MacBook Pro 15" Unibody Late 2008 and Early 2009

ステータス:

open