Philips DVP9000S Service Manual page 9

Diagnostic Software
1. Definitions and Abbreviations
Definitions
Control PC Automatic test equipment, part of the production control system in the factory, to control the
execution of Diagnostic Nuclei in the DVD player.
Diagnostic Nucleus Part of the Diagnostic Software. Each nucleus contains an atomic and software
independent diagnostic test, testing a functional part of the DVD player hardware on
component level.
Script Part of the Diagnostic Software. Each script contains a sequence of Diagnostic Nuclei to be
executed.
Service PC PC used by a service- or repairman to communicate with the Diagnostic Software in the
DVD player.
Abbreviations
BHDS Basic Hardware Diagnostic Software
BDS Basic Diagnostic Software
FDS Full Diagnostic Software
HSI Hardware Software Interface
OSD On Screen Display
PWB Printed Wire Board
RC Remote Control
ZiVa5 the single-chip DVD backend processor from LSI Logic
SACD Super Audio CD
SD5.2 Standard Design DVD-SACD Module – 5
2. Product Overview
The purpose of the DVD Diagnostic Software is to support the user (factory and service) in diagnosing the DVD player.
The context of the diagnostic software consists of:
- Service PC, a personal computer with a terminal emulation program that emulates a simple ASCII terminal.
The Service PC is connected to the RS232 port of the DVD player and is used for Level 2 / Second Line
diagnostic mode. The Service PC is operated by a service personnel or repairman.
- Local Keyboard, input device of the DVD player hardware, used during power-on and during the execution of
the Player Test Script.
- Test Pin, input device of the DVD player hardware, used during power-on.
- Local Display, output devices of the DVD player hardware, used by the Player Test Script and Dealer Test
Script to output messages and test results.
- Control PC, a computer system in the factory connected to the RS232 port of the DVD player, used during
Level 1 diagnostic mode to communicate with the Diagnostic Software (bi-directional).
- DVD Player Hardware, all the DVD player hardware which is subject to the Diagnostic Software.
The DVD has only one single RS232 port, implying that all interfaces using this port are mutually exclusive.
The Full Diagnostic Software (FDS) is aimed to support service and repair and can present menus and receive
commands via a Service PC.
The Diagnostic Software contains a large number of tiny Diagnostic Nuclei. Each nucleus contains an atomic and
software independent diagnostic test, testing a functional part of the DVD player hardware on component level.
Each Diagnostic Nucleus works directly on the DVD player hardware, no drivers will be used. Each Diagnostic
Nucleus returns a Result indicating if and which error was detected (e.g. faulty SDRAM chip).
It is possible to combine these diagnostic nuclei in a Script to create a high level test like a player test, a script can
be as simple as a sequence of executed Diagnostic Nuclei. The Diagnostic Software contains standard scripts for
dealer and player test. Each script returns a Result indicating if and which error was detected (e.g. faulty module).
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