Replacing The Prom - Brother BE-438C Instruction Manual

7. CORRECT USE

7-10. Replacing the PROM

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before
opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury.
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1. Turn off the power switch.
2. Remove the six screws (1), and then open the control box cover (main P.C. board mounting plate (2)).
Note: When opening the cover, hold it securely so that it does not fall down.
3. Use the special tool to remove the PROM control assembly (3) from the PROM socket (4).
Store the removed PROM control assembly in the special case provided.
4. Bend the pins of the PROM control assembly which is to be installed (5) so that they are at an angle of approximately 90°.
5. Make the directions of the PROM control assembly (5) and the PROM socket (4) same so that the portions (a) come on the
same side, and press the PROM gently into the socket while checking that the pins of the PROM are going into the socket
properly.
6. While pressing the RESET switch (6), turn on the power switch to initialize the memory.
Note: All of the user programs, cycle programs and memory switches which have been recorded will then be cleared.
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DANGER
BE-438C
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2544Q
2543Q
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