Apple performa 6200.6300 Servicehandbuch

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 REA Procedures
Repair Overview for Freezing and Video Color Hue Issues - 3
 
Performa 62xx, 63xx
 
Perform these steps for Performa 62xx, 63xx computers 
exhibiting system freezes:
• Note the unit’s external cable hookups.
• Remove the I/O door.
• Remove the logic board.
• If the clock chip at U10 is not p/n 343S1191 or 
343S1121, replace the logic board.  (Ignore any letters 
following the part number.)
• If the Cache/ROM DIMM is laid out 
 
exactly
 
 as illustrated 
and has 
 
no
 
 sticker on the middle vertical IC, replace the 
DIMM.
• If an Ethernet card is installed and the card fence doesn’t 
hook onto the logic board fence, replace the card fence.
• If you are not replacing the logic board, replace the EMI 
clips.
• Upgrade RAM for U.S. and Canadian Education customers.