Input (S2) Sensor Service Check; Go Back - Lexmark C540n Service Manual

5025-2xx, 4xx
Step Questions / actions
Check the following values at JFUSES1:
5
Pin Value
+24 V dc (doors closed)
1
+24 V dc (doors closed)
2
+24 V dc (doors closed)
3
+24 V dc (doors closed)
4
Between 0.6 and 3.28 V dc
5
Ground
6
Ground
8
Between -3 and +3.3 V dc
10
Ground (no
11
Are the values approximately correct?
Replace the fuser. See
6
removal" on page
Does the error clear?

Input (S2) sensor service check

Note: The input (S2) sensor is part of the paper pick motor drive assembly FRU, and is not available otherwise.
Step Questions / actions
Enter Diagnostics Menu (turn the printer off,
1
press and hold
and then release the buttons when the
installed memory and processor speed
displays).
Perform the Base Sensor Test. See
Sensor Test" on page
1. Select Base Sensor Test, and press
Select ( ).
2. Select S2, and press Select (
3. Pull tray 1 out, and rotate the S2 sensor
flag (S2 is located in front of the center
paper pick motor drive assembly housing.)
It should rotate freely and return to its
original position.
Is the input (S2) sensor flag damaged?
Watch the display while rotating the flag.
2
Does the display indicate Media Clear and
Media Present?
Turn the printer off, and remove the rear
3
shield. See
"Top cover assembly removal"
on page 4-13.
Is the JSP1 cable connector properly
connected to the controller board?
Service Manual
2-32
JFUSES1
wire)
"Fuser assembly
4-32.
and , turn the printer on,
"Base
3-16.
).
Yes
Go to step 6.
Problem resolved.
Yes
Replace the paper pick
motor drive assembly. See
"Paper pick motor drive
assembly removal—
standard tray" on
page 4-65.
Problem resolved.
Go to step 4.
No
Replace the controller
board. See
"Controller
board removal" on
page 4-20.
Replace the controller
board. See
"Controller
board removal" on
page 4-20.
No
Go to step 2.
Go to step 3.
Reseat the connector.
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