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5 . 1 5 . 3
POWER S U P PLY REMOVAL
Removal of the Si" Hard Disk power supply is the same as removal of the
Si" Diskette power supply .
5 . 1 5 . 4
REPLACEMENT
Replacement of the Si" Hard Disk power supply is the same as removal of
the Sf' Diskette power supply .
5 . 1 6
FAN A S S EMBLY
The fan assembly is located on the left s ide of the processor unit .
C A U T I ON :
Fan assembly removal a n d replacement should be performed
only by trained electronics tech nician s .
5 . 1 6 . 1
REMOVAL
1 .
Remove the covers . See Section S . 1 . 1 , "Removal . "
2 .
Remove the printer/plotter control board.
moval . "
3 .
Remove a l l feature boards by grasping the ej ector levers at the sides
of each feature board and pu l l ing toward the rear of the processor
unit .
4 .
Remove the power supp ly . See Sect ion S . S . 1 , "Remova l . "
S .
Remove the expans ion board . See Section S . 6 . 1 , "Remova l . "
Remove the ROM plug - in drawer . See Section S . 7 . 1 , "Removal . "
6 .
Remove the planar board . See Section S . 8 . 1 , "Removal . "
7 .
8 .
Remove the four A l len screws on the left s ide of the processor unit .
See Figure S - 34 .
See Section S . 13 . S , "Power Supply Removal . "
See Section S . 1 3 . 6 , "Repl acement . "
Removal and Replacement Procedures 5 - 48
See Section S . 2 . 1 , "Re
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