User's Manual

Power ON Self-Test

Every DPR-1040 has been factory-tested to operate properly.

When the DPR-1040 is powered ON, it also automatically performs a Self-Test on

each of its major components. The final result of the Self-Test is signaled by the

state

of the USB LED indicator following the Self-Test. Preliminary to the actual

component tests, the three LED indicators are tested to confirm their steady and

flashing operation.

Immediately after power-up, all three of the green LEDs should illuminate steadily for

several seconds. Then the USB LED should light OFF simultaneously. Irregularity of

any of the three LEDs during these LED tests may mean there is a problem with the

LEDs themselves.

The actual component tests immediately follow the LED tests. A normal (no fault)

result is signaled by a simultaneous flashing of these three LEDs three times,

followed by a quiescent state with all three LEDs dark.

If the Self-Test routine traps any component error, then following the LED tests the

Self-Test will halt and the LEDs will continuously signal the error according to the

following table. In the event of any such error signal, contact your dealer for

correction of the faulty unit.