Field Service Ver.1.0 May. 2008 3. OTHER
9
PC-407
3. OTHER
3.1 Disassembly/Adjustment prohibited items
A. Screws to which blue paint or green paint is applied
• Blue paint or green paint is applied to some screws to prevent them from coming
loose.
• As a general rule, screws to which blue paint or green paint is applied should not be
removed or loosened.
B. Red-painted screws
• Do not remove or loosen any of the red-painted screws in the field. It should also be
noted that, when two or more screws are used for a single part, only one representa-
tive screw may be marked with the red paint.
C. Variable Resistors on Board
NOTE
• Do not turn the variable resistors on boards for which no adjusting instructions are
given in ADJUSTMENT/SETTING.
D. Removal of Boards
CAUTION
• When removing a circuit board or other electrical component, refer to “SAFETY AND
IMPORTANT WARNING ITEMS” and follow the corresponding removal procedures.
• The removal procedures given in the following omit the removal of connectors and
screws securing the circuit board support or circuit board.
• When it is absolutely necessary to touch the ICs and other electrical components on
the board, be sure to ground your body.
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