Motorola DS3478 用户手册

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3 - 2
Symbol DS3478 Product Reference Guide
Troubleshooting
Table 3-1    
Troubleshooting
Problem
Possible Causes
Possible Solutions
Nothing happens when the 
scan trigger is pressed.
No power to the digital 
scanner.
Check battery.
Ensure that end cap to battery chamber is 
secured.
The digital scanner is 
disabled.
For Synapse or IBM 468x mode, enable the digital 
scanner via the host interface. Otherwise, see the 
technical person in charge of scanning.
If using RS-232 Nixdorf B 
mode, CTS is not asserted.
Assert CTS line. 
The aiming pattern is 
disabled.
Enable the aiming pattern. See 
Decoding illumination is 
disabled.
Enable illumination. See 
.
The digital scanner emits short 
low-short medium-short high 
beep sequence.
The digital scanner is 
powering up.
Normal when battery is inserted.
The digital scanner emits short 
high-short high-short 
low-short-low beep sequence.
Radio failure.
Cycle power to the cradle and re-attempt pairing.
The digital scanner emits the 
aiming pattern, but does not 
decode the bar code.
Digital scanner is not 
programmed for the correct 
bar code type.
Ensure the digital scanner is programmed to read 
the type of bar code being scanned.
Bar code symbol is 
unreadable.
Check the symbol to ensure it is not defaced. Try 
scanning test bar codes of the same bar code 
type. See 
 for test 
bar codes. 
Bar code is out of range 
from the digital scanner. 
Move digital scanner closer to or further from bar 
code.
The symbol is not 
completely inside aiming 
pattern.
Move the symbol completely within the aiming 
pattern.
The digital scanner emits four 
short high beeps.
Battery is low.
Charge the battery. See 
.