Intermec 6400 manual Displays a Bad

SECTION 4 Maintenance and Troubleshooting

	Table 4-1 continued
	Basic Troubleshooting
Condition	Solution
Computer	* The computer may not be making full contact with the
Displays A Bad	dock. Try reseating the unit in the dock.
Tcom Message	* The dock may not be properly connected to the host. Make
	sure there is a connection. TCOM errors may happen when
	telephone service is lost, or for reasons not related to the
	physical connection.
Computer Takes A	Normal time is between 30--45 seconds. If you do not have
Long Time To Boot	your computer connected to a charging source the booting
Up After A Reset	should be less than 30 seconds. Short beeps about one
	second apart occur during the booting process to indicate
	that your computer is working.
	If it takes longer than that, contact Intermec support
	personnel.
Tethered Laser	Load 64SCN7B with both “--e” and “--w” command lines
Data And Internal	switches. Both are needed to enable power to the internal
Laser Engine Data	engine and direct the data from both scanners to the
Does Not Show Up	keyboard.
In The Key Buffer
Wedge Mode	Check for non-displayable preamble, postamble, prefix, or
Application Dies	suffix characters being sent by the laser. The internal laser
When Scanning	engine sends a postamble of <cr-lf> by default. Either
Data Using A	disable them or code the application to handle them. The
Tethered Scanner,	integrated scanner and tethered lasers may be configured
But Works Fine	by scanning setup bar codes.
With The
Integrated
Scanner
Tethered Scan	Ensure that the tethered laser is configured for 9600, n, 8, 1
Data Does Not	and the bar code data is prefixed with an STX (0x02) and
Show Up In The	suffixed with an ETX (0x03).
Key Buffer But
The Integrated
Laser Data Does

6400 Hand-Held Computer User’s Guide 4-7