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

 

 

 

 

 

 

 

 

Page 146
Image 146
HP 24SII manual Appendix E Troubleshooting, Problem Symptom Cause Solution