There are three kinds of error messages you might get while using your computer: . Boot errors, such as BOOT ERROR DC. See the Boot Errors Table for more information. . Operating system errors, such as ERROR 24 or FILE NOT FOUND. To get a brief description of a numbered error, type ERROR followed by the error number displayed. For example, type: ERROR 31 (ENTER) and your screen shows: PROGRAM NOT FOUND For more information see the System Errors Table. . Application program errors -- see your application program manual. When an error message is displayed: . Try the operation several times. . Look up boot errors and operating system errors in the following tables and take the recommended actions. See your application program manual for explanations of application program errors. . Try using other diskettes. . Reset the computer and try the operation again. . Check all the power connections. . Check all interconnections. . Remove all diskettes from drives, turn off the computer, wait 15 seconds, and turn it on again. . If you tried all these remedies and continue to get an error message, contact a Radio Shack Service Center. Note: If more than one thing is wrong, the computer might wait until you correct the first error before displaying the second error message.
Error Message Explanation/Action ---------------- ----------------------- ------------------- BOOT ERROR CK Checksum error -- Contact RSSC. possibly a defective ROM. BOOT ERROR CT Defective CTC Contact RSSC. chip. BOOT ERROR DC Floppy disk controller error. a. Defective a. Try a different diskette. diskette. b. Floppy disk b. Turn on the expansion unit. floppy disk not on. expansion unit. c. Defective FDC c. Contact RSSC. Chip or Drive. BOOT ERROR DM DMA chip failure. Contact RSSC. BOOT ERROR D0 Drive not ready. a. Improperly a. Insert the inserted diskette again diskette. and press
. b. Defective b. Try a different diskette. diskette. c. Defective c. Contact RSSC. drive. BOOT ERROR HA Controller error. Re-initialize the Aborted command: hard disk or contact Problem during RSSC. boot-up of hard disk. BOOT ERROR HC CRC error. Re-initialize the Invalid data in hard disk or contact data field. RSSC. BOOT ERROR HD Controller error. a. Re-initialize the Busy not reset. hard disk. b. Power down, wait 10 seconds, and power up. If the error occurs again, contact RSSC. BOOT ERROR HI CRC error. Re-initialize the Invalid data in hard disk. ID field. BOOT ERROR HM Data address Re-initialize the mark not found. hard disk. BOOT ERROR HN ID not found. Re-initialize the No Boot Track. hard disk. BOOT ERROR H0 Track 0 error on hard disk. a. Didn't find a. Press RESET. Track 0 before time-out. b. Secondary hard b. Turn on your disk drives secondary hard not turned on. disk drives. BOOT ERROR HT Time-out while waiting for Ready. a. Hard disk drive a. Follow correct not powered up. procedure: Turn on the hard disk first. b. Hard disk drive b. Press RESET. isn't turned on and ready within 10 seconds after the computer. c. Hard disk drive c. Connect the is disconnected. hard disk drive or operate under floppy disk control. BOOT ERROR LD Lost data during Try another read -- FDC (floppy TRSDOS-II diskette disk controller) or or contact RSSC. drive fault. BOOT ERROR MF Memory failure in Contact RSSC. address range X'1000'-X'7FFF'. BOOT ERROR MH Memory failure in Contact RSSC. address range X'8000'-X'FFFF'. BOOT ERROR ML Memory failure in Contact RSSC. address range X'0000'-X'0FFF'. BOOT ERROR PI Defective PIO Chip. Turn on the expansion bay if it is off. If the error occurs again, contact RSSC. BOOT ERROR RS The diskette Insert a TRSDOS-II in Drive 0 is not formatted diskette Radio Shack operating into Drive 0 and system format. press RESET. BOOT ERROR SC CRC Error. Try a different Invalid data on diskette. diskette or defective diskette. BOOT ERROR TK Record not found Re-format your bootstrap track. diskette or try a Improperly formatted different diskette. or defective diskette. BOOT ERROR Z8 Defective CPU. Contact RSSC. NOT A SYSTEM Diskette in Drive Insert a TRSDOS-II DISK 0 isn't a TRSDOS-II operating system operating system diskette into diskette. Drive 0. ---- RSSC = Radio Shack Service Center.
Code Message Explanation/Action ------ ------------------------ ------------------------- 0 No Error Found. No error occurred. 1 Bad Function Code Check the function code On SVC Call Or No number used on the SVC Function Exists. call. 2 Character Not No record or character Available. was available when you you called the SVC. 3 Parameter Error On Parameter is incorrect or Call. a required parameter is missing. 4 CRC Error During Disk Try the operation again, I/O. using a different diskette. If the problem occurs often, contact RSSC. 5 Disk Sector Not Found. Try a different diskette. 6 Attempt To Open A Close the file before File Which Has Not re-opening. Been Closed. 7 Illegal Disk Change. TRSDOS-II detected an illegal disk swap. 8 Disk Drive Not Ready. Drive door is open or the diskette is not in the drive. On Thinline drives, check the DRIVE command settings. 9 Invalid Data Provided Data stream to be By Caller. processed has illegal characters. 10 Maximum Of 16 Files Too many files are open May Be Open At Once. at once. 11 File Already In Filename already exists Directory. as a directory entry. Kill the existing file, choose another filename, or specify a drive number. 12 No Drive Available No on-line drive For An Open. a. is write enabled b. has enough space to create a new file, or c. has a system directory. 13 Write Attempt To A File was opened for read Read Only File. only, not for read/write. 14 Write Fault On Disk Error occurred during a I/O. write operation. Try a different diskette. If the problem continues, contact RSSC. 15 Disk Is Write Write enable the disk. Protected. 16 DCB Is Modified And DCB (used in machine- Is Unusable. language programming) has been modified since the last disk access (while the file was open). 17 Directory Read Error. Error occurred during an attempt to read the directory. Use a different diskette. 18 Directory Write Error. Error occurred during an attempt to write to the directory. Use a different diskette. 19 Improper File Name Filespec you gave does (Filespec). not meet TRSDOS-II standard file specifications. 20 ** Unknown Error Code ** 21 ** Unknown Error Code ** 22 ** Unknown Error Code ** 23 ** Unknown Error Code ** 24 File Not Found. Filename you gave was not found on the available disks or the file is the incorrect type for the desired operation. 25 File Access Denied You gave an incorrect Due To Password password. See Protection. the ATTRIB command. 26 Directory Space Full. Number of filenames has reached the amount set when you formatted the disk. 27 Disk Space Full. No space is available on the disk. 28 Attempt To Read Specified record number Past EOF. is past the EOF. 29 Read Attempt Outside Use valid record numbers. Of File Limits. 30 No More Extents Use the COPY command to Available (16 copy the files and Maximum). reduce fragmentation. See also SAVE/RESTORE and MOVE. 31 Program Not Found. Specified program is not found on the available disks. 32 Unknown Drive Number Specified drive number (Filespec). is not valid. 33 Disk Space Allocation Use the COPY command to Cannot Be Made Due To copy the files and reduce Fragmentation Of Space. fragmentation. 34 Attempt To Use A File specified for NON Program File As execution is not a A Program. program file or the load address given is illegal. Make sure you have a system diskette in Drive 0. 35 Memory Fault During Program is loaded Program Load. incorrectly, possibly because of faulty memory or a "bad" load address. 36 Parameter For Open Check the OPEN statements Is Incorrect. or the DCB for errors. 37 Open Attempt For A File specified for open File Already Open. is already open. 38 I/O Attempt To An Open the file before Unopen File. access. 39 Illegal I/0 a. I command not given Attempt. after a diskette swap. b. Can be caused by an I/O attempt to a differently formatted disk. Format the disk under the current version of TRSDOS-II or use FCOPY. 40 Seek Error. a. Data cannot be read from the disk -- faulty disk. b. When re-initializing a hard disk, you must also reformat the secondary drives. 41 Data Lost During Disk Contact RSSC. I/O (Hardware Fault). 42 Printer Not Ready. Check the connections, power, ribbon, on-line status, and so on. 43 Printer Out Of Paper. Check the printer's paper supply. 44 Printer Fault (May Be Check the connections, Turned Off). power, ribbon, on-line status, and so on. 45 Printer Not Available. Check the connections, power, ribbon, on-line status, and so on. 46 Not Applicable To Operation performed is VLR Type Files. not valid for VLR files. 47 Required Command Required parameter or Parameter Not Found. argument is missing from the command. 48 Incorrect Command Option or argument Parameter. given in the command is incorrect. 49 Hardware Fault Contact RSSC. During Disk I/O. 50 Invalid Space The space descriptor that Descriptor. tells TRSDOS-II which extent to read next is invalid. Try a different diskette. 51-255 ** Unknown error code ** These codes are also returned to machine code routines that call a SVC (System Service Call) of TRSDOS-II. Register A usually has a return code after any function call. The Z flag is set when no error occurs. Exceptions are certain computational routines, which use Registers A and F to pass back data and status information. ---- RSSC = Radio Shack Service Center.
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