Brother S-7200B Service Manual page 66

11. TREADLE UNIT ASSEMBLY
3) Memorizing the neutral position
4) Memorizing the maximum backward position
5) Completion of setting
59
With your foot released from the treadle, press the thread
trimming key (2).
"Pdrr x.xxx" will appear in the main display (3).
2335M
With the treadle depressed backward to the maximum
backward position, press the thread trimming key (2).
"Pd-- x.xxx" will appear in the main display (3).
2336M
1. Press the ENTER key (4).
The buzzer will sound and the main display (3) will switch
off.
NOTE:
If you do not press the ENTER key (4), the settings
will not be memorized.
2337M
2. Turn off the power switch (1).
3. Set DIP switch No.4 to OFF.
0653B
S-7200B