Epson EPL-N3000 Service Manual page 414

EPSON EPL-N3000/AcuLaser M4000N
7.2.1.2 Notes on Use of Components Connection Wiring Diagram
The table below shows how to interpret the Components Connection Wiring Diagrams.
However, description of general symbols is omitted.
Table 7-5. Wiring Diagram Symbols (Components Connection)
Wiring Diagram Symbol
Represents a component connected by harness, wire, etc. Also
indicates signal wire name and details. Arrows on the line
indicate signal direction.
Represents connection, which varies with specification,
between components by means of harness or wires, and
represents the signal line name or its function.
The arrow < or > shown on the line represents the direction of
signal.
Represents connection between components by conductor such
as leaf spring. Also indicates signal wire name and details.
Arrows on the line indicate signal direction.
Represents a function and a signal logical value (Low: L, High:
H) at the time when the function is operated. The voltage is a
value at the time when the signal is High. The arrow represents
a signal direction.
Represents a function and a signal logical value (Low: L, High:
H) at the time when the function is detected. The voltage is a
value at the time when the signal is High. The arrow represents
a signal direction.
Represents connection between wires.
Represents connection between components by jointing with a
screw.
Indicates that "A" and "A" are connected.
Represents an approximate value of DC voltage which is
measured by connecting the negative terminal to SG (signal
ground).
Appendix
Description
Wiring Diagrams and Signal Information
Table 7-5. Wiring Diagram Symbols (Components Connection)
Wiring Diagram Symbol
Represents signal ground.
Represents frame ground.
Represents return.
Represents connector. Connector number is given above and
pin number is given below.
P : Represents plug side of connector.
J: Represents jack side of connector.
Represents a contact terminal with a flat spring or the like on a
circuit board, with the connector (terminal) No. shown inside.
Represents a connector directly mounted on the circuit board,
with the connector No. shown inside.
Represents a component, with its name and the plate of the
Parts List shown inside.
Represents a functional part of a component, with its name or
function name shown inside.
Indicates information related to that section.
Revision C
(continued)
Description
414
Confidential