JVC 250 service manual Error Codes, IIC Handler

Chapter 7---Troubleshooting

7.4 Error Codes

For certain errors that may occur in the Model 250 Projector the software provides error codes that are helpful in determining the nature of the problem. These error codes can be seen on the left side of the monitor screen when using a PC connected to Port A or Port B.

Table 7-1Error Categories:

Category	Error Category	Description
Number
1	CEXEC	Operating System.
2	FLASH HW	Flash Memory HW driver.
3	IIC HANDLER	IIC Handler for Convergence/Deflection PCB,
		Horizontal/Vertical Deflection PCB, Raster
		Timing Generator PCB, Video Amplifier PCB,
		Video Processor PCB.
4	POWER ON/OFF	Power On Sequencing.
5	FLASH MANAGER	Flash Memory Data Manager.
6	VIDEO SWITCHER	EXTRON or JVC Video Switcher Handler.
7	ANSI OUTPUT	ANSI Output Display process.
8	UI CHAN/SRC	User Interface VIC Configuration Handler for
		Channel/SRC Data.
9	VIDEO INPUT CARD	VIC Card Handler.
10	HARDWARE	Misc HW (shutters, etc.).

The error codes listed in Table 7-2 describe problems associated with software (Version 2.6.0) and hardware while the projector is operating. The first column of the table lists the error number code that appears on the PC screen. The second column describes the on-screen text. The third column provides a description of the problem and any other pertinent information.

Table 7-2Error Codes.

Error	On-Screen Text	Description
Number
1.5	“Invalid read/wrt”	Software error-mismatch. Open mode vs. Write
		or Read command.
1.12	“Ser parity error”	Serial Port Parity error-not currently used.
1.13	“Bad dev I/O oper”	Software error-invalid I/O request.
1.27	“Timeout on Read”	Software error-unexpected timeout on Read.

7-22 Model 250 Service Manual