Step 1520-4
The power supply is working normally.
1. Unplug the power cord from the system unit.
2. Press and hold the power-on switch on the operator panel for a few seconds to
discharge the power supply.
3. Plug the power connectors (P1, P2, P3, P4, P5 and P6) into the power supply.
4. Plug the power cord into the system unit.
If a cooling fan does not turn, the system will try to power up and then turn off when the
power-on switch on the operator panel is pressed (but not when the switch on the
power supply is pressed and held).
While holding the power supply switch do all the cooling fans turn?
NO
Replace the faulty cooling fan. Go to "MAP 410: Repair Checkout" in the
RS/6000 and
Eserver
pSeries Diagnostics Information for Multiple Bus
Systems
.
YES
Exchange the operator panel electronics assembly. Go to “Step 1520-5”.
Step 1520-5
Press the power-on switch on the operator panel to turn on the power.
Does the power LED on the operator panel come on and stay on?
NO
Reinstall the original operator panel electronics assembly. Go to “Step 1520-6”.
YES
Go to "MAP 410: Repair Checkout" in the
RS/6000 and
Eserver
pSeries
Diagnostics Information for Multiple Bus Systems
.
Step 1520-6
1. Unplug the power cord from the system unit.
2. Record the location of all the adapters. Label and record the location of any cables
attached to the adapters. Remove all the adapters.
3. Remove all the memory cards.
4. If two processor cards are installed, remove the lower one.
5. Unplug the power cable from the SCSI backplane.
6. Unplug the power cables from all the SCSI devices.
7. Unplug the front and rear cooling fan power connectors.
8. Plug the power cord into the system unit.
9. Press the power-on switch on the operator panel to turn on the power.
Does the power LED on the operator panel come on and stay on?
NO
Go to “Step 1520-7” on page 48.
YES
Go to “Step 1520-8” on page 49.
Chapter 3. Maintenance Analysis Procedures
47
Summary of Contents for RS/6000 44P Series 270
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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 ...
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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 ...
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Page 346: ... Printed in U S A September 2001 SA38 0572 02 ...