Brother BAS-761 Service Manual download pdf (Page 121)

6. ELECTRIC COMPONENTS

BAS-7610

6-47

6-10. Error code

When there is the possibility that harness is faulty, check connections and pin omissions, etc. with reference to "6-7-2.

Harness connecting pin number table”.

It is possible for it to be made not to indicate by setup of a DIP switch by error provisionally depending on the contents of

an error. However, set up after checking the safety of operation of a sewing machine in that case. Moreover, be sure to

remove the factor of abnormalities immediately and return a setup.

Error

code

Contents Disposal / factor / check

E-500

The abnormalities in 24V

system voltage (rise)

• Primary side input voltage is high.

• The secondary side connection mistake of the power supply unit

transformer 2

• Evasion by DIP switch B-5 ON is possible.

E-501

The abnormalities in 24V

system voltage (descent)

• The fuse F2 on a power supply board has run out.

• Primary side input voltage is low.

• The secondary side connection mistake of the power supply unit

transformer 2

• Evasion by DIP switch B-5 ON is possible.

E-502

The abnormalities in 36V

system voltage (rise)

• Primary side input voltage is high.

• Evasion by DIP switch B-5 ON is possible.

E-503

The abnormalities in 36V

system voltage (descent)

• The fuse F3 on a power supply board has run out.

• Primary side input voltage is low.

• The secondary side connection mistake of the power supply unit

transformer 2

• Evasion by DIP switch B-5 ON is possible.

E-504

The abnormalities in primary

side voltage (rise)

• Primary side input voltage is high.

• The primary side connection mistake of a transformer 1

E-505

The abnormalities in primary

side voltage (descent)

• Primary side input voltage is low.

• The primary side connection mistake of a transformer 1

• The fuses F2 and F3 on a power supply board have run out.

E-510

E-511

E-512

E-513

The needle bar is in positions

other than an upper needle

position. (WARNING)

• Turn the machine pulley to move the needle bar to its upper needle

position.

• Malfunction of machine sensor (needle up)

E-520

Upper thread breakage

(WARNING)

• Upper thread has broken.

• Poor adjustment of upper thread detector.

• Poor adjustment or dirt of an optical fiber tip position.

• Malfunction of upper thread detector

• Malfunction of machine sensor harness A or B.

• There are few stitch numbers before upper thread breakage is detected.

→DIP switch C-1 turn ON.

E-530

Sewing clamp and sewing

program number do not match.

• A number is made in match.

* Turn ON DIP switch B-1 and carry out error disregard.

(A data check is surely carried out.)

<Incorrect detection (Recognition of an actual jig pattern and a jig pattern

sensor is different.)>

• Malfunction of jig pattern PCB.

• Dirt is in photo sensors on jig pattern PCB.

• Malfunction of jig pattern harness.

E-535

Retractable are for double (0 to

31) but data does not contain a

double switching command.

(Model No. 0 - 31)

• The check of data (Input the double switching command.)

* Turn ON DIP switch B-6 and carry out error disregard.

(A data check and sewing clamp are surely carried out.)

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Brother BAS-761 Service Manual Page 121

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