HP 24SII manual Appendix E Troubleshooting, Problem Symptom Cause Solution

APPENDIX E

TROUBLESHOOTING

Please check this troubleshooting guide before calling BayTech Tech Support.

NOTE: This troubleshooting guide is geared towards the IBM PC, AT, XT family and compatibles.

PROBLEM	SYMPTOM	CAUSE	SOLUTION
Data does not	Power LED	Unit is not	Put switch on
print	does not	turned on
	illuminate
		A/C power	Plug power cord into proper A/C power
		cord is not	outlet
		plugged in
		Fuse blown	Unplug A/C power cord and check
			internal fuse. If blown, replace with same
			type and rating of fuse
	On power-up,	Model 24SII	Call BayTech technical support
	all LEDs come	DES failure
	on and stay on
	No port LEDs	PC serial	Check cabling between PC and Model
	illuminate	cable	24SII DES. Check handshaking lines
			using TERM program. All lines (except
			DCD which is not used) should be high.
			If lines are high, turn Model 24SII DES
			off. You should notice CTS and DSR
			lines go low. If they do not go low, there
			is a good chance you have an error in
			your cable. Typing characters from
			TERM should illuminate PC LED on
			Model 24SII DES.
		PC com port	Check installation procedures for PC's
			serial port. COM1 must generate an
			interrupt on IRQ4 (COM2 on IRQ3).
			Also, check any jumpers for defining port
			configuration which should be jumpered
			for DTE, not DCE.
				￿￿￿
		PC parallel	Check cable's continuity and pin
		cable	configuration.
Data does not	No port LEDs	Model 24SII	Make sure Model 24SII DES is
print	illuminate	DES is	connected to a designated PC COM
(continued)	(continued)	connected to	port. Check using TERM program. Turn
		a non-	Model 24SII DES off, and you should
		designated	not see CTS/DSR lines toggle if you are
		COM port	on a non-designated COM port.
		PC is	Enter Model 24SII DES configuration
		connected to	mode and in the Status menu, check the