DVP-CX777ES
To quit the diagnosis and return to the Check Menu screen,General Description of Checking Method
pressx or [ENTER] key. If an error occurred, the diagnosis is2. Version
suspended 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.
Pressx key to quit the diagnosis, or. key to repeat the same(2-4) Model Type
Model code is displayed.
item where an error occurred, or> key to continue the checkError: Not detected.
from the item next to faulty item.The model code read from the EEPROM is displayed with
* In ?All item continuous check, pressing stop or enter will not2-digit hexadecimal number.
quit the diagnosis.(2-5) Region
Region code is displayed.
Selecting [2] and subsequent items call the submenu screen of
each item. When is displayed in the submenu, it meansError: Not detected.
The region code determined from the model code is dis-
that the test is not supported in the model.played.
For example, if 5. Supply is selected, the following submenu
will be displayed.(2-6) Mt Check
Mount resistance is checked.
Error 22: The region code does not accord.
### Syscon Diagnosis ###Check whether the region code that is deduced from model
Check Menu
No. 5 Supplyresistance and destination resistance accords with the re-
0. Quitgion code that is deduced from region resistance value.
1. All
2. ARP Register Check3. Peripheral
3. ARP to RAM Data Bus(3-2) EEPROM Check
4. ARP to RAM Address Bus
Data write t read, and accord check
5. ARP RAM CheckError 03: EEPROM write/read discord
0x9249, 0x2942 and 0x4294 are written to the address 0x00
to 0xFF of the EEPROM and then read for checking. Be-
fore writing, the data are saved, then after checking, they
are written to restore the contents of EEPROM.
0. (Quit)
Quit the submenu and return to the main menu.(3-3) Gate Array Check
Data write ? read, and accord check
1. (All submenu items continuous check.)Error 02: Gate Array write/read discord
This menu checks 2 and subsequent items successively. At the itemData of 0x00 to 0xFF is written sequentialy to the address
where visual check is required for judgment or an error occurred,0xF and then read for checking.
the checking is suspended and the message is output for key entry.
Normally, all items are checked successively one after another(3-4) NAND FLASH Check
automatically unless an error is found.Data delete ? write ? read, and accord check
Selecting [2] and subsequent items executes respective menus andError 04: delete error
outputs the results.Error 05: write error
For the contents of each submenu, see General Description ofError 06: read data discord
Checking Method and Check Items List.Error 21: more than ten blocks are defective
Deleting, writing and checking read data are executed to
the zeroth block of Flash memory.
If any detective block is found, the address is displayed.
When more than ten blocks are defective, it is considered
as an error.
(3-5) SACD Check
Device reset t internal organs RAM check.
Error 50: Write and read data discord.
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ACEC
SONY
