Brother KE-430HX Service Manual page 217

Error status #10 Error code appears on the display when the foot switch is depressed.
Probable causes
6. If the thread trimmer pulse motor
does not move and "E690" is
displayed, there is a malfunction of
the pulse motor and cord.
Error status #11 Work clamp does not rise.
Probable causes
1. Incorrect work clamp home position
adjustment
2. Incorrect mechanism adjustment
Error status #12 Work clamp does not lower.
Probable causes
1. Incorrect work clamp home position
adjustment
2. Incorrect mechanism adjustment
Error status #13 The mode does not switch to test mode even when the TEST key is pressed.
Probable causes
Malfunction of panel main PCB or
panel key PCB
Check/ repair/ adjust
a. Disconnect the main PCB connector P24
(TPM) and measure the resistance between
terminals 1-2 and 3-4 of the cord connector.
OK if 1.53-1.87 ohms (1.7 ohms +/- 10%).
b. If step a. (above) is OK, there is a malfunction
of the main PCB.
4185B
Check/ repair/ adjust
a. Adjust the home position while referring to
"9-20. Adjusting the work clamp motor home
position".
b. Check if the work clamp/button clamp is
touching anything.
Check if the work clamp arm moves smoothly.
Check/ repair/ adjust
a. Adjust the home position while referring to
"9-20. Adjusting the work clamp motor home
position".
b. Check if the work clamp/button clamp is
touching anything.
Check if the work clamp arm moves smoothly.
Check/ repair/ adjust
a. Check that connector P5 (PANEL) on the main
PCB and connector P1 on the panel main PCB
are inserted.
b. Check that CN2 on the panel main PCB and
CN2 on the panel key PCB are inserted.
KE-430HX/KE-430HS, BE-438HX/BE-438HS
14. ELECTRIC MECHANISM
Parts to be replaced
Pulse motor T assembly
Main PCB assembly
Parts to be replaced
Work clamp arm assembly
Parts to be replaced
Work clamp arm assembly
Parts to be replaced
Operation panel assembly
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