Bang & Olufsen DVD 2, Service Manual

Page: 35 / 70

Section 2
The last 5 numbers exist out of the lot and serial number. This value (decimal
number) has to be translated to a hexadecimal number. In case the lot and serial
number starts with 0....., the previous digit (to the left - in this case 6) are imported.
Example: 000516 => 600516 (decimal) = 929C4 (hex)
Bottom line, the 10-digit IEEE unique number, in this case, will be = 3E5CE929C4
Alignment of ‘Diversity String’
The boot EEPROM, item 7810 on PCB02, Digital contains the “Diversity String”.
During startup, the “Diversity String” tells the software, which hardware version is
present. This setting is stored during the production of PCB02, Digital.
In case of failure and when PCB02, Digital has been replaced, it is adviseable to
ensure that the EEPROM contain the correct boot script.
With DS command: 1229, the settings can be displayed.
Note
An error in the diversity string will render DVD 2 unable to boot-up and PCB02,
Digital becomes defective
Via the Dignostic Software, the “Diversity String” is stored with the command 1226,
followed by the “Diversity String” as parameter.
The diversity string (128 digits) used in BHDR2/02 is as follows:
44424849692540014630355F390000007104030000010102000101004008080
044564452323030312E31303801020208080000000100020100000000000000
00
Example:
DS:> 1226 44424849692540014630355F390000007104030000010102000101
004008080044564452323030312E31303801020208080000000100020100000
00000000000
Test OK @
Adjustments 4.7