Konica Minolta bizhub 160 Service Manual - Page 63

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bizhub 160/160f bizhub 161/161f 6. Other Field Service Ver. 1.0 Apr. 2005 6. Other 6.1 Disassembly/Adjustment prohibited items A. Paint-locked Screws NOTE • Paint-locked screws show that the assembly or unit secured can only be adjusted or set at the factory and should not be adjusted, set, or removed in the field. B. Red Painted Screws NOTE • When the screws are removed, the red paint is coated on the points where read- justment is required. • Once the red painted screw is removed or loosened, you should make adjustment. Accordingly check the adjustment items in operation manual and make necessary adjustment. Note that when two or more screws are used on the part in questions, only one representative screw may be marked with red paint. (1) Other Screws not Marked with Red Paint Scanner Assy PH Unit Maintenance 4980D054AA 4980D014AA 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 PWBs NOTE • When removing a circuit board or other electrical component, refer to "Handling of PWBs" 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. • Where it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body. 30

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6. Other
Field Service Ver. 1.0 Apr. 2005
30
bizhub 160/160f
bizhub 161/161f
Maintenance
6.
Other
6.1
Disassembly/Adjustment prohibited items
A.
Paint-locked Screws
NOTE
Paint-locked screws show that the assembly or unit secured can only be adjusted
or set at the factory and should not be adjusted, set, or removed in the field.
B.
Red Painted Screws
NOTE
When the screws are removed, the red paint is coated on the points where read-
justment is required.
Once the red painted screw is removed or loosened, you should make adjustment.
Accordingly check the adjustment items in operation manual and make necessary
adjustment. Note that when two or more screws are used on the part in questions,
only one representative screw may be marked with red paint.
(1)
Other Screws not Marked with 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 PWBs
NOTE
When removing a circuit board or other electrical component, refer to “Handling of
PWBs” 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.
Where it is absolutely necessary to touch the ICs and other electrical components
on the board, be sure to ground your body.
Scanner Assy
PH Unit
4980D054AA
4980D014AA