BayTech 24SII Owner's Manual page 146

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
Data does not Power LED
print does not
illuminate
On power-up,
all LEDs come
on and stay on
No port LEDs
illuminate
Data does not No port LEDs
print illuminate
(continued) (continued)
CAUSE SOLUTION
Unit is not Put switch on
turned on
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
Model 24SII Call BayTech technical support
DES failure
PC serial Check cabling between PC and Model
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.
Model 24SII Make sure Model 24SII DES is
DES is connected to a designated PC COM
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