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8. ELECTRIC MECHANISM
KE-430B, 430C series
179
Error status #2 Error code appears on the display window when the power is turned on.
Probable causes Check/ repair/ adjust Parts to be replaced
2. PROM chip defective or main
circuit board defective when
the error code E-80 appears
on the display window.
([E.c0] KE-436B, 436C)
a. Check the PROM chip is securely
attached to the main circuit board without
its lead bent.
b. Check the PROM chip is attached to the
main circuit board with letters MN and IM
on the PROM chip and those on the main
circuit board matching.
PROM chip
Main circuit board
3. Foot switch remains pressed
when error code E-81
appears on the display
window.
([E.14], [E.15] KE-436B,
436C)
• See #7-1 and #7-2. Foot switch
Foot switch cord
assembly
• Check that P8 (PANEL) connectors of the
main circuit board and P1 (PANEL)
connectors of the panel circuit board are
plugged in.
Panel circuit board
Panel cord
4. A switch on operation panel
remains pressed when error
code E-82 appears on the
display window.
([E.17] KE-436B, 436C)
<KE-436B, 436C>
• Check that P20 (RSPORT) connectors of
the main circuit board and P5 (DRV)
connectors of the panel circuit board are
plugged in.
Panel circuit board
5. Power supply voltage drops
abnormally when error code
E-90 appears on the display
window.
([E.90] KE-436B, 436C)
a. Make sure that the power supply voltage
of the wall socket is within ±10% of the
voltage specification.
b. See #1-2 and #1-3.
6. Power supply voltage rises
abnormally when error code
E-91 appears on the display
window.
([E.91] KE-436B, 436C)
a. Make sure that the power supply voltage
of the wall socket is within ±10% of the
voltage specification.
b. See #1-2 and #1-3.
7. Control box has overheated
when the error code E-d0
appears on the display
window.
([E.c2] KE-436B, 436C)
a. Clean the ventilation outlet of the control
box.
b. Keep the control box open for a while to
allow the inside to cool down and then
turn on the power again.
If the same code still appears on the
display, the main circuit board is
defective.
Main circuit board
8. Main circuit board defective
when the error code E-E0
appears on the display
window. (other than
KE-436B, 436C.)
• Turn on the power again.
If the same code still appears on the
display, the main circuit board is defective.
Main circuit board
9. Cord defective when the
error code E-F1 appears on
the display window.
([E.F1] KE-436B, 436C)
• Check P2 (PER) connectors are attached
to the power supply circuit board and P16
(PER) connectors are attached to the
main circuit board. Check the cord
connecting P2 and P16 is not damaged.
PER cord