Step 1520-1
You might have been directed to this MAP for several reasons:
1. There is no indication of activity when the power-on switch on the operator panel is
pressed. None of the power LEDs light and none of the fans, including the fan in
the power supply, start to turn.
Go to “Step 1520-2”.
2. When the power-on switch on the operator panel is pressed, the system begins to
power on, but the operator panel power LED and/or the power supply LED does not
stay on.
Go to “Step 1520-5” on page 47.
Step 1520-2
1. Unplug the power cord from the system unit and the power outlet.
2. Check that the external power cord to the system unit has continuity.
3. Check that the power outlet has been wired correctly with the correct voltage.
4. Plug the power cord into the system unit and the power outlet.
Did you find a problem?
NO
Go to “Step 1520-3”.
YES
Correct the problem. Go to "MAP 410: Repair Checkout" in the
RS/6000 and
Eserver
pSeries Diagnostics Information for Multiple Bus Systems
.
Step 1520-3
1. Unplug the power cord from the system unit.
2. If you have not already done so, remove the covers as described in “Covers” on
3. Press and hold the power-on switch on the operator panel for a few seconds to
discharge the power supply.
4. Unplug the power connectors (P1, P2, P3, P4, P5 and P6) from the power supply.
5. Plug the power cord into the system unit.
6. A small dark-colored switch is located on the back of the power supply, near the
back of the system. It is a normally off momentary switch. Press and hold this
switch for a few seconds while observing the fan in the power supply and the power
LED on the power supply.
Does the fan in the power supply turn on and the power LED on the power
supply change from blinking to solid while you hold the switch? (When you
release the switch, the system will power down.)
NO
Replace the power supply. Go to
″
Map 0410: Repair Checkout
″
in the
RS/6000
and
Eserver
pSeries Diagnostics Information for Multiple Bus Systems
.
YES
Go to “Step 1520-4” on page 47.
46
Service Guide
Summary of Contents for RS/6000 44P Series 270
Page 1: ...RS 6000 44P Series Model 270 Service Guide SA38 0572 02 ...
Page 10: ...x Service Guide ...
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Page 20: ...Rear View 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 10 17 18 19 2 Service Guide ...
Page 44: ...26 Service Guide ...
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Page 204: ...186 Service Guide ...
Page 247: ...b Slide the covers to the rear and remove Chapter 9 Removal and Replacement Procedures 229 ...
Page 288: ...270 Service Guide ...
Page 290: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 20 22 23 24 25 272 Service Guide ...
Page 294: ...Keyboards and Mouse 276 Service Guide ...
Page 296: ...Keyboards and Mouse Black 278 Service Guide ...
Page 298: ...Power Cables 1 2 3 4 5 6 7 8 9 10 11 280 Service Guide ...
Page 300: ...282 Service Guide ...
Page 302: ...284 Service Guide ...
Page 304: ...286 Service Guide ...
Page 310: ...292 Service Guide ...
Page 338: ...320 Service Guide ...
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Page 346: ... Printed in U S A September 2001 SA38 0572 02 ...