HP 16501A LOGIC, 16500C manual Preprocessor Problems, Target system will not boot up

Preprocessor Problems

This section lists problems that you might encounter when using a preprocessor. If the solutions suggested here do not correct the problem, you may have a defective preprocessor. Refer to the User’s Guide for your preprocessor for test procedures. Contact your local Hewlett-Packard Sales Office if you need further assistance.

	Target system will not boot up
	If the target system will not boot up after connecting the preprocessor
	interface, the microprocessor or the preprocessor interface may not be
	installed properly, or they may not be making electrical contact.
	Ensure that you are following the correct power-on sequence for the
	preprocessor and target system.
	1 Power up the analyzer and preprocessor.
	2 Power up the target system.
	If you power up the target system before you power up the preprocessor,
	interface circuitry in the preprocessor may latch up, preventing proper target
	system operation.
	Verify that the microprocessor and the preprocessor interface are
	properly rotated and aligned, so that the index pin on the
	microprocessor (such as pin 1 or A1) matches the index pin on the
	preprocessor interface.
	Verify that the microprocessor and the preprocessor interface are
	securely inserted into their respective sockets.
	Verify that the logic analyzer cables are in the proper sockets of the
	preprocessor interface and are firmly inserted.
	Reduce the number of extender sockets.
See Also	“Capacitive Loading” in this chapter.

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