Apple color classic Manual Do Serviço

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 Adjustments
Video - 10
 
Caution:
 
  With the rear 
housing removed, the metal 
chassis could short to the 
bottom of the logic board. 
Before switching on system 
power, make sure the 
chassis is not touching the 
logic board. To prevent the 
bottom of the chassis from 
buckling and touching the 
logic board, you may want to 
support the rear corners of 
the chassis.
 
Replacement Note:
 
  Perform 
the cutoff video adjustment 
whenever you replace the 
analog board.