Yamaha CD Recordable/Rewritable Drive CRW-F1-NB - Manual (Page 25)

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• The function of a plastic shunt is to electrically connect the jumper switch contacts.
Inserting and removing the pin turn the settings on and off.
• Be sure to turn off the computer prior to setting the jumper switch.
Cable Select (CSEL)
For the computer supporting a cable select function, insert a plastic shunt into the CSEL
jumper switch so that the computer will automatically adjust the CRW-F1 drive setting to
master or slave.
If the CSEL setting results in any problems to the CRW-F1 drive, set the drive to master
or slave.
Refer to the instruction for the computer to find out if it supports the CSEL function.
Note