Thiele Streamfeeder Reliant 3700, Product Manual

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78 Streamfeeder Reliant 3700 Universal Friction Feeders
Product Guide
Steady beep is heard, reset
button is illuminated, and
pressing button does not
reset fault (continued)
NOTE
The following steps assume
the output of the DC power
supply is working and both 5
and 12 volts are present at the
CPU and Expansion Board
input connectors. If not, see
section titled “Fan does not
operate/Testing DC power
supply.”
NOTE
The following steps assume
the blinking green “heartbeat”
LED is present on the CPU
board. If not, see section titled
“CPU board ‘heartbeat’ pulse
not present”.
Problem Solution
4. Verify the sheet sensor’s power-on green LED is illuminated. Is the green LED
illuminated?
a. Yes: Go to step 5.
b. No: Go to step 7.
5. Verify the sheet sensor’s yellow LED sensing indicator illuminates when the sensor
is covered, and goes dark when the sensor is uncovered. Is the yellow LED
illuminated when the sheet sensor is covered, and dark when the sensor is
uncovered?
a. Yes: Go to step 6.
b No: Go to step 7.
6. Cover the sensor so that the yellow sensing LED is illuminated and press the reset
switch. Did the feeder reset?
a. Yes: The feeder times-out as it should. Go through feeder setup and make
sure the sensor sees the leading edge of the next sheet shortly after a piece
of sheet material is removed from the feeder. If the leading edge of the next
piece of material is not detected in time, the feeder “times-out” and stops,
causing the steady audible beep and reset button lamp to illuminate.
b. No: Go to step 7.
7. Remove the sheet detect sensor harness from CPU connector J6 and measure for
the presence of 12VDC across pins 1 and 3 of connector J6 on the board. Is the
voltage present?
a. Yes: Go to step 8.
b. No: Go to step 9.
8. Test sheet sensor input. Using a small metal blade screwdriver, short pins 1 and 2
together on CPU board connector J6, keep them shorted, and press the reset
button. Does the feeder reset?
a. Yes: The sheet sensor input on the CPU board is good. Repair faulty sheet
sensor harness and/or replace sheet sensor.
b. No: Go to step 9.
9. Replace Reliant Control Assembly.
10. Replace ROM chip
Table 9-1. Quick-Look Troubleshooting (continued)