IBM 7133 Series, Service Manual

Page: 118 / 230

Step 5
(from step 3 on page 2-2030-2)
Observe the remote-power-on control unit.
Are the MAIN connectors (J3 and J4) and the AUX connectors (J1 and J2) all
connected to a using system?
NO 1. In the sequence shown, exchange the following FRUs for new FRUs.
Ensure that for each FRU exchange, you go to “MAP 2410: 7133 – Repair
Verification” on page 2-2410-1 to verify the repair.
a. Remote-power-on control unit (see “Remote-Power-On Control Unit” on
page 3-55).
b. MAIN using-system power-control cables.
2. If the problem remains, the power control signal is not being generated by
the using system. Refer to the using-system Installation and Service Guide
to solve the problem.
YES 1. If both using systems are powered on, exchange, in the sequence shown,
the following FRUs for new FRUs. Ensure that for each FRU exchange,
you go to “MAP 2410: 7133 – Repair Verification” on page 2-2410-1 to
verify the repair.
a. Remote-power-on control unit (see “Remote-Power-On Control Unit” on
page 3-55).
b. MAIN using-system power-control cables.
2. If only one using system is powered on, exchange, in the sequence shown,
the following FRUs for new FRUs. Ensure that for each FRU exchange,
you go to “MAP 2410: 7133 – Repair Verification” on page 2-2410-1 to
verify the repair.
a. Remote-power-on control unit (see “Remote-Power-On Control Unit” on
page 3-55).
b. The power-control cables that are connected to the using system that
is powered on.
3. If the problem remains, the power control signal is not being generated by
the using system. Refer to the using-system Installation and Service Guide
to solve the problem.
2-2030-4
7133 Service Guide