Apple MD094LL/A Manuale Utente

iMac (27-inch, Mid 2010) Symptom Charts — Input/Output Devices 

 2010-09-09

Charge Batteries
•  No Amber/Green status LED 

visible on charger when 
batteries are installed and 
charger is connected to AC.

•  Amber status LED is flashing
•  When installed in the input 

device, the batteries don’t 
power it.

•  Batteries only provide limited 

run time when used.

•  Batteries show leak/inflation 

signs

1.  Ensure that only NiMH AA rechargeable batteries 

are used with the Apple Battery Charger, that 

they are correctly installed, with correct polarity 

orientation. If Amber status LED still flashes when 

these batteries are installed, they are likely to be 

defective. 

2.  Ensure that only NiMH AA rechargeable batteries 

are used with the Apple Battery Charger and 

were left charging for at least 5 hours. (LED will 

go green when a full charge has been reached, 

then will turn off to conserve energy).

3.  Test with known-good AC duck head plug.
4.  Quickly test customer’s Apple Battery Charger 

for charge of a known-good set of NiMH AA 

rechargeable batteries . If no Amber  or Green 

status LED is seen, replace battery charger (P01).

5.  Quick check customer’s NiMH AA rechargeable 

batteries for charge status when installed in a 

known-good Apple Battery Charger. If no Amber/

Green status LED is seen, replace Apple battery 

set (P01).

6.  Go to deep dive.

1.  Verify if  the charger LED goes 

ON (Green or Amber) when 

a known-good set of NiMH 

AA batteries is installed and 

charger is connected to AC 

outlet.

Yes

Go to step 2

No

Check batteries fit and are 

correctly seated in case. If 

issue persist, replace defective 

Apple Battery Charger

2.  Verify if the charger LED goes 

Amber when a set of known-

good discharged or only partly-

charged NiMH AA batteries is 

installed.

Yes

Go to step 3

No

LED remains Green while 

known-good inserted 

batteries are still not fully 

charged (charger never 

initiates a charge): Replace 

defective Apple Battery 

Charger.