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Apple powerbook 190.5300 rea Instruction De Maintenance

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PowerBook 5300/190 REA
Perform One or More of These Procedures
 
Install Power Supply 
Shield 
 
Units that qualify for this 
repair: 5300 units with 
serial numbers 
xx605xxxxx and below 
 
and 
 
no shield on the power 
supply
 
Before you begin, remove 
the following:
• Battery
• Floppy Drive
• Keyboard
• RAM Card
• Clutch Covers
• Palm Rest
• Hard Drive
1 Disconnect the backup 
battery cable from the 
power supply board by 
carefully pulling the 
male portion of the 
connector to the right.
2 Lift the power supply 
board straight up, 
supporting all sides of 
the board (the power 
supply board connector 
is under the backup 
battery connector).
 
Caution:
 
 Make certain 
that the power supply 
board insulator is 
present and correctly 
placed when you 
reinstall the board.
Power Supply Board
(5300 Series only)
Backup Battery Cable Connector
Power Supply
Board Insulator
Power Supply
Board (5300 Series only)