10. ELECTRIC MECHANISM
BAS-311H
136
Error status #15 Tension release does not operate during test feeding.
Probable causes Check/repair/adjust Parts to be replaced
1. Poor connector connection Check that main PCB connector P3 (SOL2) is
connected.
2. Malfunction of tension release
solenoid
Disconnect main PCB connector P3 (SOL2) and
measure the resistance between pins 1-2 of the
cord connector.
OK if 6-8 ohms.
Tension release solenoid
3. Malfunction of main PCB
a. Turn on the power switch and check LD2
(green) on the main PCB.
OK if illuminated.
b. With connector P3 (SOL2) disconnected
from the main PCB, check the continuity
between terminals 1 and 2 of connector P3
on the main PCB.
OK if ∞ ohms.
c. With main PCB connector P3 (SOL2)
connected, turn on the power and carry out
sewing, and measure the voltage between
pins 1-2 of connector P3 (SOL2).
OK if there is voltage output change during
sewing.
Main PCB assembly 311H
Error status #16 The machine does not operate during sewing, and the error code [E130], [E131] or [E132] appears on
the display.
Probable causes Check/repair/adjust Parts to be replaced
Malfunction of synchronizer, upper
shaft motor, fuses or motor PCB.
Refer to steps 1 to 4 in #5.
2727B
0651D
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