To quit the diagnosis and return to the Check Menu screen, pressGeneral Description of Checking Method
x or [ENTER] key. If an error occurred, the diagnosis is suspended
2. Version
and the error code is displayed as shown below.
(2-2) Revision
ROM revision number is displayed.
### Syscon Diagnosis ###Error: Not detected.
The revision number defined in the source file is displayed
with four digits.
3-2. EEPROM Check
Error 03 : EEPROM Write/Read N
Address:00000001(2-3) ROM Check Sum
Write Data:2492Check sum is calculated.
Read Data:2490Error: Not detected.
Press NEXT Key to Continue8-bit data are added up to the ROM address 0x000F0000 to
Press PREV key to Repeat0x002EFFFF, and the result is displayed with 4-digit hexa-
_
decimal number. Error is not detected. Compare the result
with the specified value.
(2-4) Model Type
Press x key to quit the diagnosis, or . key to repeat the
Model code is displayed.
same item where an error occurred, or > key to continue the
Error: Not detected.
check from the item next to faulty item.
The model code read from the EEPROM is displayed with
2-digit hexadecimal number.
Selecting [2] and subsequent items call the submenu screen of
each item. When ????? is displayed in the submenu, it means
(2-5) Region
that the test is not supported in the model.
Region code is displayed.
Error: Not detected.
For example, if ?5. Supply? is selected, the following submenu
The region code determined from the model code is dis-
will be displayed.
played.
### Syscon Diagnosis ###(2-6) M?t Check
Check MenuMount resistance is checked.
No. 5 Supply
Error 22: The region code does not accord.
0. Quit
Check whether the region code that is deduced from model
1. All
resistance and destination resistance accords with the re-
2. ARP Register Check
gion code that is deduced from region resistance value.
3. ARP to RAM Data Bus
4. ARP to RAM Address Bus
5. ARP RAM Check3. Peripheral
_
(3-2) EEPROM Check
Data write t read, and accord check
Error 03: EEPROM write/read discord
0x9249, 0x2942 and 0x4294 are written to the address 0x00
0. (Quit)
to 0xFF of the EEPROM and then read for checking. Be-
Quit the submenu and return to the main menu.
fore writing, the data are saved, then after checking, they
are written to restore the contents of EEPROM.
1. (All submenu items continuous check.)
This menu checks 2 and subsequent items successively. At the
(3-6) Venc Check (NC665P only)
item where visual check is required for judgment or an error oc-
Data write t read, and accord check
curred, the checking is suspended and the message is output for
Error: 52: Write/read data discord
key entry.
Error may occur due to defect of access with syscon.
Normally, all items are checked successively one after another
automatically unless an error is found.
(3-8) External RAM Check (NC665P only)
Selecting [2] and subsequent items executes respective menus and
Test Data write t read, and accord check
outputs the results.
Error: 02: The external RAM used in the system control, is
For the contents of each submenu, see ?General Description of
checked.
Checking Method? and ?Check Items List?.
6-2 |
ACEC
