Diagnostic Software Description - Philips SD-4.00SA CH Service Manual

PM3380B
Ch1
T
1
CH1 2.00 V~ MTB 500ns
Figure 5-38 FO (BefocusOn)
Visual check on the laser,when Focus control ON, if the
laserlight is visible.
Once the check is completed,switch the focus control OFF
before executing next command.
5.6.7 Hf Path
Play DVD Test Disc.
Measure outputs of diodes Ax, B, C, D, E, F.
Table 5-37
Name Testpoint
Ax F119
B F127
C F124
D F122
E F115
F F117
At outputs of diodes A, B, C, D the following waveform can be
measured: Refer to Figure 5-39
PM3394B
ch1
1
CH1 100mV~ MTB 500ns
Figure 5-39 Output of diodes A,B,C,D
Test Instructions Mono Board DVD-SD4.00SA_CH
ch1
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Value
2.6V 0.2%
2.6V 0.2%
2.6V 0.2%
2.6V 0.2%
2.6V 0.2%
2.6V 0.2%
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SD-4.00SA_CH
Measure DVDALAS outputs
Table 5-38 DVDALAS outputs
Name Testpoint
OA F104
OB F107
OC F108
OD F110
S1 F113
S2 F112
At output HFN, the following waveform can be measured :
Refer to Figure 5-40
PM3394B
ch1
1
CH1 500mV~ MTB 250ns
Figure 5-40 HFN / HFP
5.7

Diagnostic Software Description

5.7.1 Introduction
Purpose
This document describes all interfaces from the outside world
to the diagnostic software, what is needed to use these
interfaces and how to access them.
Scope
This document has been realised within the framework of the
DVD video player.
5.7.2 Definitions and Abbreviations
Definitions
Control PC
Diagnostic Nucleus
Script
Service PC
Abbreviations
FDS
5. EN 23
Value
1V 10%
1V 10%
1V 10%
1V 10%
1V 10%
1V 10%
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Automatic test equipment, part of the
production control system in the
factory, to control the execution of
Diagnostic Nuclei in the DVD player.
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.
Part of the Diagnostic Software. Each
script contains a sequence of
Diagnostic Nuclei to be executed.
PC used by a service- or repair-person
to communicate with the Diagnostic
Software in the DVD player.
Full Diagnostic Software