TROUBLESHOOTING GUIDE (CONTINUED)

SYMPTOMS

POSSIBLE CAUSE(S)

SOLUTION

 

 

 

 

 

 

Everything

These characters may

 

works except

not be supported by

Try operating the scanner in Alt

for a couple of

that country’s key look

mode.

characters.

up table.

 

 

 

 

RS-232 Only

 

 

The unit is

 

Increase the interscan code

Configuration is not

delay setting. Adjust whether the

transmitting

F0 break is transmitted. It may

correct.

each character.

be necessary to try this in both

 

 

 

settings.

 

 

 

 

 

 

Alpha

 

Enable Caps Lock detect setting

characters

Computer is in Caps

of the scanner to detect whether

show as lower

Lock mode.

the PC is operating in Caps

case.

 

Lock.

 

 

 

 

 

 

Everything

These characters may

 

works except

not be supported by

Try operating the scanner in Alt

for a couple of

that country’s key look

mode.

characters.

up table.

 

 

 

 

 

 

 

 

Com port at the host is

 

Power-up OK

not working or

 

configured properly.

Check to make sure that the

and scans OK

 

Cable not connected to

baud rate and parity of the

but does not

scanner and the communication

communicate

the proper com port.

port match and the program is

properly to the

 

 

looking for “RS-232" data.

 

host.

Com port not

 

 

 

 

operating properly.

 

 

 

 

 

 

 

The host is

The scanner and host

Check that the scanner and the

receiving data but

may not be configured

host are configured for the same

the data does not

for the same interface.

interface.

look correct.

 

 

 

 

 

 

 

 

33

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Image 36
Metrologic Instruments MS7620 manual RS-232 Only