Brother BAS-342G PS, Руководство по обслуживанию

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8. ELECTRICAL MECHANISM
126 BAS-342G
Problem #2 When the power is turned on, nothing is displayed in the PROGRAM No. display or the menu display.
Cause Inspection/Remedy/Adjustment
Replacement if a
malfunction
Control program does not operate.
Insert a CF card containing the control program,
turn on the power switch and update the program
version. (Refer to “3-11. Updating the control
program”.) Main P.C. board
Problem #3 When the power is turned on, an error code is displayed.
Cause Inspection/Remedy/Adjustment
Replacement if a
malfunction
1. If [E025] is displayed, the start
switch is still depressed.
If [E035] is displayed, the work
clamp switch is still depressed.
1
）
Check if the start switch or the work clamp
switch is still depressed.
2
）
Check if there is a harness short-circuit.
3
）
Check that connector P6 (FOOT) is inserted
into the main P.C. board.
Two-pedal foot switch
2. If [E055] is displayed, there is a
malfunction of the safety switch.
1
）
Check that the safety switch is OFF
2
）
Check if there is a harness short-circuit.
3
）
Check that connector P9 (HEAD-SW) is
inserted into the main P.C. board.
Safety switch
3. If [E065] is displayed, one of the
keys on the operation panel is still
depressed.
Check that connector P1 (PANEL) is inserted into
the main P.C. board, and that connector CN2
(MAIN) is inserted into the panel P.C. board. Panel P.C. board
Panel harness
4. If [E403] is displayed, the
connection to the PMD P.C. board
is defective.
1
）
Check that connector P1 (MAIN) is inserted
into the PMD P.C. board.
2
）
Check if there is a harness short-circuit.
Harness
Power supply motor P.C.
board
Main P.C. board
5. If [E401] is displayed, there is a
poor connection between the main
P.C. board and the power supply
motor P.C. board.
1
）
Check that connector P6 (MAIN) is inserted
into the power supply motor P.C. board, and
that connector P17 (M-MOTOR) is inserted
into the main P.C. board.
2
）
Check if there is a harness short-circuit.
Main P.C. board
6. If [E450] or [E452] is displayed, the
machine head memory cannot be
verified.
1
）
Check that connector P3 (HEAD-M) is
inserted into the power supply motor P.C.
board.
2
）
Check if there is a harness short-circuit.
Machine head memory
7. If [E700] is displayed, there is an
abnormal rise in the power supply
voltage.
1
）
Check that the power supply voltage at the wall
outlet is within the range of the specification
v/- 10%.
2
）
Refer to check items #1-2 and #1-3.
8. If [E705] is displayed, there is an
abnormal drop in the power supply
voltage.
1
）
Check that the power supply voltage at the
wall outlet is within the range of the
specification v/- 10%.
2
）
Refer to check items #1-2 and #1-3.
9. If [E740] is displayed, there is a
malfunction of the cooling fan for
control box.
1
）
Check if there are any thread scraps blocking
the cooling fan.
2
）
Check that connector P22 (FAN) is inserted
into the main P.C. board.
Cooling fan
(for control box)
10.If [E741] is displayed, there is a
malfunction of the cooling fan for
the X motor.
If [E742] is displayed, there is a
malfunction of the cooling fan for
the Y motor.
1
）
Check if there are any thread scraps blocking
the cooling fan.
2
）
Check that connector P10 (SENSOR2) is
inserted into the main P.C. board.
Cooling fan
(for X motor or Y motor)