Plextor PX-712 Installation And User Manual page 100

Section 6. Maintenance and Troubleshooting
NOTE: You may have to remove the drive from the computer to
perform the next two steps.
3. Hold the ATAPI cable at or near the base of its connection to the
PX-712A drive. Carefully remove the ATAPI cable from the drive
by pulling the cable gently rearward.
4. Note the position of the mode jumper at the rear of the PX-712A. A
jumper will be installed on either the CABLE SELECT, SLAVE, or
MASTER position. Write down this jumper position. (You'll need to
replace the jumper after the test.) Then:
If the jumper is on the MASTER position, move it to the
SLAVE or CABLE SELECT position for this test.
If the jumper is on the SLAVE or CABLE SELECT jumper,
leave it in place.
The position of the DMA jumper (on or off) doesn't matter.
Don't change it.
5. Install an extra jumper so that both the CABLE SELECT and
SLAVE positions are jumpered, as shown in Figure 41.
6. If you removed the drive for access to the cable and mode jumpers,
slide it back into the computer and connect the power cable to the
drive.
7. Replace the computer's cover and re-connect the computer's power
cord to the power source.
CAUTION: Turning on the computer power without first replacing the
cover can be dangerous to the computer's components and also to
you. Be aware of the danger of electric shock and do not touch any
components inside the computer.
8. While pressing the eject button on the PX-712A, turn the computer
power on. The LED indicator blinks green, then amber, and the tray
ejects.
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PX-712 Installation and Users Manual