IBM 220 Service Manual page 62

DANGER
DANGER
DANGER
10. Check the covers for sharp edges, damage, or alterations that expose the
11. Check the covers for proper fit. They should be in place and secure.
12. Check the product label on the bottom of the 7206 Tape Drive to make sure it
DANGER
13. Check the voltage level at the outlet and also check for proper grounding (see
48
7206 Model 220 Service Guide
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer's responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
5. Unplug the 7206 Tape Drive external power cable from the electrical outlet.
6. Unplug the system unit power cable from the electrical outlet.
7. Check the 7206 Tape Drive external power cable for damage.
To prevent a possible electrical shock when adding or removing any devices
to or from the system, ensure that the power cords for those devices are
unplugged before the signal cables are connected or disconnected. If possible,
disconnect all power cords from the existing system before you add or
remove a device. (RSFTD203)
To prevent a possible electrical shock from touching two surfaces with
different electrical grounds, use one hand, when possible, to connect or
disconnect signal cables. (RSFTD004)
8. Check the external SCSI bus (signal) cable 3 for damage.
9. Check the SCSI bus terminator for damage.
internal parts of the 7206 Tape Drive.
matches the voltage at your outlet.
Dangerous voltage being measured. (RSFTD005)
Figure 18 on page 49).