Bang & Olufsen DVD 2, Service Manual

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Service Mode
Diagnostic Software(DS)
Service Mode in DVD 2 is a new software implemented in the PCB02, Digital and
is called ‘Diagnostic Software’. The Diagnostic Software consists of independent
‘atomic’ tests, called nuclei. Each nucleus forms a test to indicate possible
hardware failure.
Execution of each test is done by typing individual nucleus numbers in the
command promt line (a promt in the ‘Diagnostic Software’), which look like this:
DS:>
In this case use ‘HyperTerminal’ as user interface. HyperTerminal is a ‘Windows’
component, please see next page for setup.
Each nucleus has a unique number of four digits. This number is the input of the
command line interface.
[ XX YY _ _ ]
Nucleus number
Nucleus group number
The Nucleus groups are defined as follows:
Service Mode 2.
Nucleus Group Number Nucleus Group Name
0 Scripts
1 Codec (e.g. Chrysalis, Leco)
2 Boot EEPROM
3 NVRAM
4 SDRAM
5 FLASH
6 Video Input Processor
7 DVIO
8 Progressive Scan
9 Basic Engine
10 Display and Control Board
11 Analogue Board
12 System
13 Electronic Program Guide Board
15 HDMI
16 Analogue Slave Processor
17 Analogue Board EEPROM
18 Video Matrix
19 Audio Matrix
20 Front End
21 Hard Disk