Apple emac ati usb2 2005 서비스 매뉴얼

 

eMac ATI Graphics/ USB 2.0/2005 Take Apart

 CRT Discharge

 

CRT Discharge

 

 This product contains high voltage and a high-vacuum picture tube. To prevent 

injury, always review the Service Foundations: CRT Displays course for safety information. 

It can be found at: http://service.info.apple.com/service_training/training.html. Click on 

Desktop Certification Courses and select the Service Foundations: CRT Displays link.

 

  Never use a grounding wriststrap until after discharging the CRT and setting up 

an ongoing ground connection. 

 

Whenever the rear housing of the computer is removed and before replacing a module, 

you must

1.

Discharge the CRT (shown below) and remove the anode cap.

2.

Establish an ongoing ground by using a cable with alligator clips at both ends. 

Connect one end to the anode aperture, and connect the other end to the metal CRT 

frame (as shown below).

3.

With the CRT discharged and the ongoing ground in place wear a grounding 

wriststrap to prevent equipment damage from static electricity.