Boot Rom Diagnostics - Toshiba VP 300 Installation Instructions Manual

5.6

BOOT ROM DIAGNOSTICS

When the VP 300 is loaded or reloaded (loss of power, system error, or a command), the CPU and the
VCU execute a boot ROM diagnostic. The following describes how to access and interpret the boot ROM
errors.
Turn ON the terminal and set the speed to 300, 1200, or 9600 baud. At any of these speeds, the VP 300
prints or displays the diagnostic status. Turn ON the power to the cabinet. Press
establish the baud rate. The complete message shown below is printed, except when an error is detected by
the boot ROM diagnostics. If errors are encountered, an error message is printed.
CPU
. . . . 05MB. . . . . . .. .. 1200 BAUD MODEM . . . . . . . .
BOOTING FROM HARD DISK
XBOOT
– – – – – – – – – – – SYSTEM SOFTWARE RELEASE LX.X.X (MM/DD/YY) – – – – – – – – – – –
DAY MM/DD/ HH:MM:SS YYYY (SYSTEM NAME) ID:000 S/N: 000000 PBX: 00
(MODEM ENABLED) LAST LOGIN: 00/00 00:00
@WAITING FOR VCU READY
LOADING VCU WITH FILE H:VCU
VCU STARTED
RUNNING DISK REBUILD. . .REBUILD DONE
INITIALIZING PORTS. . .PORT INITIALIZATION DONE
If a problem is found, the terminal displays a specific error number. Table 5-2 contains a list of possible
error numbers, a description of each error, and the most likely cause. When a failed assembly is returned
for repair, the specific error number provides additional information. When contacting your Technical
Support Center, indicate the boot ROM diagnostic error number.
The boot ROM diagnostic errors and their most likely causes are listed on the following pages.
CPU
Error
No.
001H
002H
003H
004H
005H
006H
00AH
00EH
Model 300-600-001
Table 5-2 Boot ROM Diagnostic Errors
Description
Fatal Microprocessor instruction set error
Fatal EPROM checksum error
Fatal Memory context register error
Fatal Map RAM pattern test error
Fatal Map RAM addressing test error
Fatal DRAM pattern test error
Fatal DRAM addressing test error
Erroneous parity error during DRAM tests
MAINTENANCE
repeatedly to
Enter
Rev XX
Most Likely
Cause
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
Toshiba VP Systems Release 7.1 July, 1994
5-51