IBM i 830, Repair Manual

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2. See chapter 9 in the iSeries 400 Technical Information Manual SY44-0008, and use
it to check for any cable problems.
3.
For more information, see the IBM 5250 Information Display Systems — Planning
and Site Preparation Guide , GA21-9337.
This ends the procedure.
INT-PIP7 Electromagnetic Interference (EMI)
This procedure contains actions to lessen the effects of electrical noise on the
system.
1. Ensure that air flow cards are installed in all full-size card slots and adapter
card slots that are not used.
2. Keep all cables away from sources of electrical interference, such as AC voltage
lines, fluorescent lights, arc welding equipment, and radio frequency (RF)
induction heaters. These sources of electrical noise can cause the system to
become powered off.
3.
If you have an expansion unit, ensure that the cables that attach the system
unit to the expansion unit are seated correctly.
4. It is recommended that an installation planning representative perform the following
steps.
If the failures occur when people are close to the system or machines that are
attached to the system, the problem may be electrostatic discharge (ESD).
5. Use a radio frequency (RF) field intensity meter to determine if there is an
unusual amount of RF noise near the iSeries 400 system. You can also use it to
help determine the source of the noise.
This ends the procedure.
INT-PIP8 Grounding
This procedure contains actions to ensure that the system is electrically grounded
correctly.
DANGER
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)
An installation planning representative must perform all of the steps in this procedure.
Notes:
1. Power off the iSeries 400 system and the power network branch circuits before
performing this procedure.
2.
The customer may have to get an electrician to perform some of the steps in
this procedure.
3. Read Electrical Safety for IBM Service Representatives , S229-8124.
4. To ensure the safety of personnel, all electrical wiring in the United States must
meet National Electrical Code requirements.
1. Check ALL system receptacles to ensure that each one is wired correctly. This
includes receptacles for the AS/400 system and all equipment that attaches to
the iSeries 400 system-including workstations. Do this to determine if a wire
with primary voltage on it is swapped with the ground wire, causing an
electrical shock hazard. Use the procedures for checking receptacles in
Electrical
Safety for IBM Service Representatives , S229-8124.
Intermittent PIPs
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1