Serial No. Input - Sony MVC-CD250 Service Manual

MVC-CD250/CD400
2.

Serial No. Input

Write the serial No. in the EEPROM (nonvolatile memory). Con-
vert the serial No. on the name plate from decimal to ASCII code,
and write in the EEPROM.
Page
Address
Input method:
1) Select page: 0, address: 01, and set data: 01.
2) Read the 6-digit serial No. on the name plate, and convert each
digit to ASCII code, and obtain D
(See below.)
6-digit serial No.
Convert to ASCII code. (Refer to Table. 5-1-2.)
Example: If the serial No. is 123456.
D = 31
46
D = 32
47
D = 33
48
D = 34
49
D = 35
4A
D = 36
4B
2) Input D , D , D , D
46 47 48 49
Note: After setting each data, be sure to press the PAUSE button.
3) Select page: 0, address: 01, and set data: 00.
Digit 0 1
ASCII Code 30 31
B
46 to 4B
, D , D , D , D
46 47 48 49 4A
D (Data of address: 4B)
4B
D (Data of address: 4A)
4A
D (Data of address: 49)
49
D (Data of address: 48)
48
D (Data of address: 47)
47
D (Data of address: 46)
46
, D and D to each address of page: B.
4A 4B
2 3 4 5 6 7
32 33 34 35 36 37
Table 5-1-2
and D .
4B
8 9
38 39
5-44