Bang & Olufsen DVD 2, Service Manual

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The alignment can be confirmed by typing in the command promt line DS:>1208
Example of the screen information:
DS:> 1208
120800: The DvIdNumber is: 3E5CE929C4
Test OK @
In case of failure on PCB02, Digital, if the NVM and CHRYSALIS (item 7400) are
damaged, it is not possible to read out the IEEE unique number.
In that case, the IEEE number must be calculated by means of a formula and of
the ‘internal’ serial number. This ‘internal’ serial number (Prod. No.) contains 14
characters and is located at the bottom of DVD 2 (not at the ‘bottom plate’, this
must be removed first). Location illustrated below:
The calculation has to be done in two sections. Section 1: for the first 5-digit
hexadecimal number and section 2: for the last 5-digit hexadecimal number. The
procedure is described below.
Note the serial number of DVD 2, e.g.
VN1A 0646 000516
VN = Production center
1A = Change code (this is not used
for the calculation)
06 = Production year
46 = Production week
000516
= Lot and serial number
Definition: L1 = V (the first letter in production center code)
L2 =
N
(the second letter in production center code)
L1 and L2 are numerically defined by alphabetical order, which means L1 ( V )
becomes the numeric value 22 (because ‘V’ is the 22th letter in the alphabet), and
L2 (
N ) becomes the numeric value 14.
Section1
To calculate the first 5-digit hexadecimal number this formula has to be used:
(35828 x production year) + (676 x production week) + (26 x L1) + L2 + 8788
In this case (example) :
(35828 x 6) + (676 x 46) + (26 x 22) + 14 + 8788 = 255.438
Now this value (decimal number) has to be translated to a hexadecimal number.
Example: 255438 (decimal) = 3E5CE (hex) (use e.g Windows calculator as ‘translator’).
Model No. DVD 2
Prod. No. VN1A 0646 000516
4.6 Adjustments