Wiring Diagram Notations - Minolta magicolor 330 Service Manual

Wiring Diagrams and Signal Information

Wiring Diagram Notations

This section of the manual contains a Master Wiring Diagram for the Qms Magicolor 330 laser printer. The Master
Wiring Diagram shows the interconnections of the major subsystems within the printer. The remainder of this section
divides the Master Wiring Diagram into thirteen individual block diagrams (BD) to better illustrate the electrical rela-
tionships between components and assemblies within the printer. Each wire in the diagrams is tagged with a signal
name and each wire is terminated at both ends with a pin number.
The wiring diagrams presented in this manual use the following circuit notations to describe components and signal
paths within the printer.
FUSER ASSY
PL9.1.1
Relay
HEATER ON (L) 5VDC
SG or
12-2
Plug/Jack XX
P/J XX
1
2
Component name
Section 14 Parts List location number
Component or sub-assembly within a larger assembly
Wire connection
Frame ground wire fastened with a screw to the printer frame
Diagram simplification; wire continues at another point within
A
the same Block Diagram.
Diagram simplification; wire continues at another point within
A
a different Block Diagram.
Wire with signal name and direction of signal flow.
In some cases, such as a signal name of 5VDC, the signal is
a steady flow of approximately 5VDC.
In other cases, such as a signal name
HEATER ON (L) 5VDC, the signal is near 5VDC when off and
near 0VDC when on. Or in the case of the signal name
HEATER ON (H) 5VDC, the signal is near 5VDC when on and
near 0VDC when off.
Metallic contact, such as a spring, with direction of signal flow.
Frame ground
FG or
Signal ground
Analog ground
AG
Signal return
RTN
Diagram simplification; connector is continued on the
indicated Block Diagrams
3, 8
is a male connector (plug) of P/J xx
is a female connector (jack) of P/J xx
magicolor 330 - Base Engine Service Manual
RS1420XB