MAP 1520: PowerNotes:1. This is not a start-of-call MAP. Use this Power MAP only if you have been directed here from anotherMAP, an SRN in the RS/6000 Eserver pSeries Diagnostic Information for Multiple Bus Systems, or anerror code.2. This procedure is used to locate power problems in system units. If a problem is detected, thisprocedure helps you isolate the problem to a failing unit.3. The Model 6C3 and Model 6E3 can accommodate two power supplies with separate powerreceptacles on the rear of the power supply. There are three LEDs located on the front and top of thepower supply:v AC Good LED (green)v DC Good LED (green)v Power Supply Fault Indicator LED (amber)The LEDs indicate the condition of the power supply. The meaning of each LED and the conditionsthat light it are explained in this section. For additional information, refer to “Component LEDs” on page389.4. The condition of two power supplies present, but only one working, can be determined by the serviceprocessor and a warning level EPOW.5. Observe the following safety notices during service procedures.DANGERAn electrical outlet that is not correctly wired could place hazardous voltage on metal parts ofthe system or the devices that attach to the system. It is the responsibility of the customer toensure that the outlet is correctly wired and grounded to prevent an electrical shock.Before installing or removing signal cables, ensure that the power cables for the system unitand all attached devices are unplugged.When adding or removing any additional devices to or from the system, ensure that the powercables for those devices are unplugged before the signal cables are connected. If possible,disconnect all power cables from the existing system before you add a device.Use one hand, when possible, to connect or disconnect signal cables to prevent a possibleshock from touching two surfaces with different electrical potentials.During an electrical storm, do not connect cables for display stations, printers, telephones, orstation protectors for communications lines.D05CAUTION:This product is equipped with a three-wire power cable and plug for the user’s safety. Use thispower cable with a properly grounded electrical outlet to avoid electrical shock.C0198 EserverpSeries 615 Service Guide
