Fujitsu MCJ3230SS Diagnosis and Maintenance, Initial self-diagnosis, Self-diagnostic function

CHAPTER 6 Diagnosis and Maintenance

6.1Diagnosis

6.2Maintenance Information

This chapter contains diagnosis and maintenance information.

6.1 Diagnosis

Table 6.1 shows a test executed by the diagnostic function.

The drive has a self-diagnostic function. This function can check the basic operations of the drive.

A test program running in the host system is required to check general operations, including operations of the interface with the host system. (See Subsection 6.1.3.)

Table 6.1 Self-diagnostic function

Diagnostic contents	Target
Initial self diagnosis	Basic operation
	(hardware function test)
Diagnostic command	Basic operation
Test program	General operation

6.1.1 Initial self-diagnosis

When the power is turned on, the optical disk drive starts initial self-diagnosis. Basic hardware functions are tested during initial self-diagnosis.

The hardware function test checks the normality of the basic controller operation. This test includes the normality check of the ROM in which microcodes are stored, microprocessor (MPU) peripheral circuit test, memory (RAM) test, and data buffer test.

If an error is detected during initial self-diagnosis, the LED on the drive front panel blinks.

C156-E224-01EN 6-1