Troubleshooting
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CHAPTER 4 Troubleshooting This chapter shows general actions to errors in the base module and peripheral units. If a
particular error persists to occur despite the actions you have taken, record the error state and
contact the maintenance personnel of NEC. See Figures 1-2 and 1-3 in Section 1.1 for the
locations of the main and expansion cabinets, respectively.
4.1. Troubleshooting
(1) AC power is not supplied when the AC power circuit breaker in PowerBay#0 and/or
PowerBay#1 at the lower part of the rear of the main cabinet.
• Check that the distribution board is turned on.
• Check that AC power is connected to the main cabinet.
• Check that power cables are connected to POWER BAY#0 and POWER BAY#1.
• Check that the DPSs are mounted on POWER BAY#0 and POWER BAY#1, and
operate normally.
(2) Nothing is displayed on the SP console.
• Check that the SP console is turned on.
• Check that the iSP-M card and the SP console in the main cabinet are connected
properly.
- Is the right cable used?
- Are the connectors firmly inserted?
- Is the IP address set correctly?
• Check that the software does not disable screen display by moving the cursor and
pressing the SHIFT key on the screen.
• Check that the console brightness is set to the proper level.
(3) Nothing is displayed on the VGA console (when the VGA is mounted).
• Check that the VGA console is turned on.
• Check that the VGA card on the I/O module and the VGA console are connected
properly.
- Is the right cable used?
- Are the connectors firmly inserted?
• Check that the software does not disable screen display by moving the cursor and
pressing the SHIFT key on the screen.