Brother BE-438B, Service Manual

Page: 164 / 198

8. ELECTRIC MECHANISM
KE-430B, 430C series
157
Memory switches (20 - 2F)
Switch No. Motion when set to ON Initial value
memo-20
During feed test operation, jump feeding 100 stitches at a time is possible using the STEP
BACK switch.

memo-21
After the home position is detected and the machine moves to the sewing start position, the
work clamp rises automatically.

memo-22


memo-23
 
memo-24
 
memo-25
The enlargement and reduction ratio settings at the operation panel are fixed at the values
when memo-25 was set to ON.

memo-26 Thread trimming is not carried out.

memo-27
The sewing speed setting at the operation panel is fixed at the value when memo-27 was
set to ON.

memo-28 Set to ON when using the thread take-up device. ON
memo-29 Work clamp lifting and lower thread winding before home position detection are disabled.

memo-2A
 
memo-2b 

memo-2c 

memo-2d 

memo-2E


memo-2F
When the input voltage is being checked, the display shows the temperature of the heat
sink on the main circuit board instead of the voltage.

Memory switches (30 - 3F)
Memory switches 30 to 3F are set to numeric values instead of “ON” and “OFF”.
Turn the dial while pressing the STEP BACK switch to change the values.
Switch No.
Possible setting
range
Units Initial value Explanation
memo-30 1 - 999

10ms 10
Time until feed mechanism starts moving after work clamp
has lifted.
memo-31 1 - 5

4
Changes the feed speed.
1 (Fast)
 
5 (Slow)
memo-32 3 - 7

3
Changes the possible sewing speed for a given stitch length.
3 (Fast)
 
7 (Slow)
3 (2,500/3 mm), 4 (2,300/3 mm), 5 (2,000/3 mm),
6 (1,800/3 mm), 7 (1,200/3 mm)
memo-33 1 - 10

7.5

5
Changes the feed timing.
1 (Fast)

5 (Standard) 

10 (Slow)
memo-34 1 - 5 stitch 1
Number of low-speed stitches sewn at 400 rpm at sewing
start.
memo-35 3 - 9

100rpm 4
Changes the sewing start speed for the number of stitches
specified by memo-34.
memo-36
  

memo-37 0 - 3

0
Automatically corrects the gear speed when reading 2DD
disks.
0: No automatic correction
1: Read as BAS-311A data
2: Read as BAS-326A data
3: Read as BAS-341A, 342A data
ex. Read BAS-311A data by KE-436C

Set memo-37=1.
memo-38
  
