Test Instructions Mono Board Dvd-Sd4.00Sa_Ch - Philips SD-4.00SA CH Service Manual

5. Test Instructions Mono Board DVD-SD4.00SA_CH

5.1 General
• Impedance of measuring-equipment should be > 1MΩ.
• Most tests have to be done by software commands.
Together with the software command you will find a Ref.#
nbr. This is the number of the diagnostic nulceus used for
this test. More detailed information can be find in the
chapter "Diagnostic Nuclei".
• Levels: Most measurements are digital measurements.
The signal levels specification in this document are defined
as follows:
low:< 0.3V
high:> 3.0V
LOW:< 0.4V
HIGH:> 4.5V
• All the waveforms measurement carried out in these test
instruction will be base on the testpoint indicated in the
Monoboard schematic diagram in the service manual.
5.2 General Start-up Measurements
5.2.1 Supply Check:
Table 5-1 Supply check
Testpoint Supply
F781 +3V3
F782 +5V
F783 +12V
F710 +3V3SA
F711 +3V3SD
F785 FUR-3V3
F784 +3V3ST
F724 3V3D
F787 FUR-1V8
F786 VDDA-FUR Analog 1V8 Furore2 circuitry
F717 +5VSA
F715 +5VSD
F721 +5VAV
F718 +5VD
F727 VDDSTA
F729 VDDSTC
F725 VDDSTD
STi 55xx uses various power supply voltages that depend on
which processor is being used
Table 5-2 Back-end processor
Back-end VDDSTA
Processor ( Analog )
STi 5580 +2V5
STi 5588 +1V8
STi 5519 +2V5
The module operates in power-off and power-on only. There is
no standby mode at module level. In power-off, the module
does not response to any communication or signals.
Before starting the measurement, ensure that all power supply
are connected to the monoboard via connector 1703 or 1701
and that the PC interface cable is connected to the Service
interface connector 1500 of the monoboard.
Test Instructions Mono Board DVD-SD4.00SA_CH
Used by
Main supply voltage
Main supply voltage
Main supply voltage
Analog 3V3 front-end circuitry
Digital 3V3 front-end circuitry
Digital 3V3 Furore2 interface
circuitry
Digital 3V3 back-end circuitry
Digital 3V3 cicuitry
Digital 1V8 Furore2 core circuitry
Analog 5V front-end circuitry
Digital 5V front-end circuitry
Analog 5V back-end circuitry
Digital 5V back-end circuitry
Analog STi 55xx circuitry
Core STi 55xx circuitry
Digital STi 55xx circuitry
VDDSTC VDDSTD
( Core ) ( Digital )
+2V5 +2V5
+1V8 +3V3
+2V5 +2V5
SD-4.00SA_CH
5.2.2 Reset Check:
To ensure a proper start-up of the monoboard, the back-end
reset signal RESETn is required at the STi55xx input (testpoint
F906) after power-on.
To check the reset timing, measure the RESETn (testpoint
F906) and the +3V3ST supply (testpoint F784), reset circuit
trigger signal.
PM3380B
ch1: dT=73.0ms V1= 65.0mV
ch1
ch2
T
1
2
CH1 2.00 V=
CH2 2.00 V=
Figure 5-1 Reset
Nb: The RESETn rising edge should be at least 100msec after
the +3V3ST (refer to Figure 5-1).
If the reset input does not go high then check the reset circuit
around transistor 7409.
5.2.3 Clock Check
To check the correct functioning of the STI55xx, we first have
to check the presence of all clocks.
All clocks to be measured with 0.02% tolerance.
Table 5-3 Clock check
Name Testpoint Frequency
384FS F042
27M_CLK_ST F932
PCM_CLK_ST F885
Audio_CLK F935
Iguana_CLK F207
PM3380 B
ch1
CH1 2.00 V=
Figure 5-2 27M_CLK
5. EN 11
MTB50.0ms- 2.92dv ch1+
CL 16532163_019.eps
290102
Waveform
16.9344MHz Refer to Fig 5-3
27MHz Refer to Fig 5-2
11.2896MHz Refer to Fig 5-5
11.2896MHz Refer to Fig 5-5
8.4672MHz Refer to Fig 5-4
MTB10.0ns ch1+
CL 26532053_062.eps
210502