ALB-Repairs
Member
820-00281 i fixed around 18 months ago for minor liquid damage has come back to me.
I originally fixed the board by running pin 2 R4911 to Debug power button, at the time of doing this no schematics were available and pin 1 of R4911 was completely destroyed, so running to the debug power pads was the only option i had.
It has worked well since the above repair until now. Now it works however its not behaving like it should! When the charger is plugged in, sometimes DCIN pulses between 5V and 20V, this seems inconsistent, sometimes it will work for hours, sometimes it wont post.
When running of the battery with a charger plugged in it behaves normally for a few hours and then goes into some sort of quarter fan spin pulse. Originally i suspected an issue with CD3215's however it seems to still be going into a quarter fan spin cycle with the charger unplugged. With the charger unplugged G3H remains constant and so does battery voltage, but everything S5 and beyond seems to pulse.
I can recreate this fault without fail by trying to do a clean install on the device.
Does anyone know if when a CD3215 fails if the machine will run normally off the battery?
One thing ive noticed is that the battery cycles have not increase since the original repair around 18 months ago, suggesting it has been ran on its charger for almost its entire lifetime.
I originally fixed the board by running pin 2 R4911 to Debug power button, at the time of doing this no schematics were available and pin 1 of R4911 was completely destroyed, so running to the debug power pads was the only option i had.
It has worked well since the above repair until now. Now it works however its not behaving like it should! When the charger is plugged in, sometimes DCIN pulses between 5V and 20V, this seems inconsistent, sometimes it will work for hours, sometimes it wont post.
When running of the battery with a charger plugged in it behaves normally for a few hours and then goes into some sort of quarter fan spin pulse. Originally i suspected an issue with CD3215's however it seems to still be going into a quarter fan spin cycle with the charger unplugged. With the charger unplugged G3H remains constant and so does battery voltage, but everything S5 and beyond seems to pulse.
I can recreate this fault without fail by trying to do a clean install on the device.
Does anyone know if when a CD3215 fails if the machine will run normally off the battery?
One thing ive noticed is that the battery cycles have not increase since the original repair around 18 months ago, suggesting it has been ran on its charger for almost its entire lifetime.
