Replacing The Proms - Brother DH4-B981 Instruction Manual

5-9. Replacing the PROMs

Refer to the following when replacing the PROMs (for example, when upgrading the version number). At this time, be
particularly careful not to make a mistake with the direction of the PROM.
<Control circuit board>
0898Q
<Panel circuit board>
0901Q
B981
MN-
q
B981
MT-
w
B981
PL-
r
B981
e
DA-
* The figure inside the box
* indicates the version number.
DH4-B981
The PROM which is marked "MN" is the main PROM.
This PROM is mounted in position q.
0899Q
The PROM which is marked "MT" is the machine motor
PROM.
This PROM is mounted in position w.
The PROM which is marked "PL" is the panel PROM.
This PROM is mounted in position e.
The PROM which is marked "DA" is the data PROM.
This PROM is mounted in position r.
* The data PROM is only mounted when carrying out
* sewing based on data created using the BAS-PC/300.
5. CORRECT USE
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