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8. ELECTRICAL MECHANISM
129
BAS-311G, BAS-326G
Problem #8 When the foot switch is depressed, an error code is displayed.
Cause Inspection/Remedy/Adjustment Replacement if a malfunction
3. If the feed mechanism does not
move and [E210] is displayed,
there is a malfunction of the
pulse motor or cord.
1) Disconnect connector P8 (YPM) from the
PMD P.C. board, and measure the resistance
between pins 1-2 and 3-4 at the cord-side
connector.
OK if 2-3 Ω
After measuring, insert P8.
2) If 1) is OK, there is a malfunction of the PMD
P.C. board.
Pulse motor Y assembly
PMD P.C. board
Problem #9 When the foot switch is depressed, an error code is displayed.
Cause Inspection/Remedy/Adjustment Replacement if a malfunction
1. If the work clamp does not
operate and [E300] is displayed,
there is a blown fuse.
Remove fuse F2 from the power supply motor
P.C. board and check the continuity.
OK if continuity
(If there is no continuity, carry out the inspections
in 2.)
Fuse
6A-250V
2. If the work clamp does not
operate and [E300] is displayed,
there is a malfunction of the
PMD P.C. board or of the power
supply motor P.C. board.
1) Disconnect connector P9 (POWER1) from
the PMD P.C. board and measure the
resistance between pins 1-2 at connector P9.
OK if ∞ Ω; if 0 Ω, there is a malfunction of the
PMD P.C. board.
2) Measure the resistance between the fuse F2
terminal that is close to P6 (MAIN) and pin 2
of connector P7 (PMD) on the power supply
motor P.C. board. (D10 check)
OK if ∞ Ω
3) Disconnect connector P9 (POWER1) from
the PMD P.C. board, and then measure the
voltage between pins 1-2 of the cord-side
connector.
OK if approx. +100 V
After measuring, turn off the power, wait 5
minutes or more and then insert P9.
4) Disconnect connector P2 (POWER2) from
the PMD P.C. board, and then measure the
voltage between pins 1-2 of the cord-side
connector.
OK if approx. +16 V
After measuring, turn off the power, wait 5
minutes or more and then insert P2.
5) Check that connector P1 (MAIN) is inserted
into the PMD P.C. board.
PMD P.C. board or power
supply motor P.C. board
4886Q
4884Q