Section 7, "Troubleshooting - Motorola SPX3BUM/D User Manual

Sandpoint microprocessor evaluation system
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7 Troubleshooting
If you are having trouble with your Sandpoint system, follow the steps in this table for assistance.
Problem
DINK will not start
MOTOROLA
Table 21. Troubleshooting SP3
What to Check
Make sure power cord is plugged in.
Make sure power supply switch is ON (switch is
under the power cord at the back)
If STANDBY POWER is on but the front panel power
switch does not start DINK,.
If STANDBY POWER is on but neither the front
panel power switch nor the internal red button will
start DINK, set the PSON switch (see Section 3.1.8).
If STANDBY POWER and MAIN POWER are both
on, press the red reset button inside (bottom right
corner).
If power is on and the reset button does not start
DINK, check the activity of the MPMC LEDs and the
SP3 LEDs.
Verify
If AC power is active, the green
"STANDBY POWER" LED on the SP3
motherboard will be on (open the
chassis to verify).
If the standby power is now active,
press the POWER switch on the front
of the chassis.
Open the chassis and press the red
POWER switch at the bottom right
corner (second from the bottom).
If power is now available (MAIN
POWER is on), the chassis power
switch may be disconnected. Make
sure the cabled connecter labelled
"POWER SW" or equivalent is
connected to the chassis header (J29)
on the pins labelled "PWR SW" (pins
24 and 26).
If power is now available (MAIN
POWER is on), the APC unit is not
functioning. Make sure that the battery
is installed and is not discharged
(replace if necessary).
Sandpoint will work without the APC
but power must be turned on and off
with the power supply switch.
If DINK starts, the front-panel reset
switch may be disconnected. Insure
that the cable labelled "RESET" or
equivalent is connected to the chassis
header J26 pins 2/4/6/8.
If all MPMC LEDs do not activate while
the Reset button is pressed and held,
the MPMC card is not installed or not
functioning. Insure card is firmly seated
and re-try.
27

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