IBM 220, Service Manual

Page: 35 / 68

Step 5: Cooling Fan
This step examines the cooling fan as the possible source of the problem.
1.
Press the power switch to turn off the power.
DANGER
Up to 240 V ac is present at the power module connectors when the main
power cord is connected to a power source. (RSFTD010)
2. Reconnect the power supply connector (J2) to the cooling fan (refer to Figure 3
on page 7).
3. Press the power switch to turn on the power.
Does the power-on light come on and stay on, and is there airflow from the fan?
NO Power off the 7206 Tape Drive and then replace the cooling fan. Verify that
the power-on light comes on when power is restored to the device. Refer
to “Removing and Replacing the Cooling Fan” on page 34.
YES
Go to Step 6: Tape Drive.
Step 6: Tape Drive
This step examines the drive as the possible source of the problem.
1. Press the power switch to turn off the power.
DANGER
Up to 240 V ac is present at the power module connectors when the main
power cord is connected to a power source. (RSFTD010)
2. Reconnect the power supply connector (J1) to the drive (refer to Figure 3 on
page 7).
3. Press the power switch to turn on the power.
Does the power-on light come on and stay on, and is there airflow from the fan?
NO
Power off the 7206 Tape Drive and then replace the drive. Refer to
“Removing and Replacing the Drive” on page 30.
Note: If the media is still in the drive being replaced, it can be removed
manually. See “Manually Removing a Tape Cartridge” on page 35.
YES Go to Step 9: Tape Drive Status Lights.
Chapter 3. Maintenance Analysis Procedures
21
|
|
|
|
|
|
|
|
|
|
|
|