Philips DVD 620, Service Manual, Page: 28 / 59

Diagnostic Software Descriptions and Troubleshooting EN 28 DVD 620 /0X1 5.
5.7 Menu and Command Mode Interface
5.7.1 Layout of Results Diagnostic Nuclei
Results returned from a Diagnostic Nucleus will be displayed in
the following layout:
< number >< string > [ok | ER]
< number >: is a 4-digit decimal number padded with leading
zeros if its value is less than 4 digits. The first 2 digits identify
the generating nucleus (or group of nuclei) while the latter 2
digits indicate the error number.
< string >: is a text string containing information about the result
of the Diagnostic Nucleus.
< number > and < string > are defined in [SSD_DN] in the
output sections of each Nucleus.
Examples:
1.
0001Unknown command ER @
2. 3100OK @
3. 0901Data line X is not connected to the DRAM ER@
5.7.2 Command Mode Interface
Set-up Physical Interface Components
Hardware required:
•
Service PC
• one free COM port on the Service PC
• special cable to connect DVD player to Service PC
The service PC must have a terminal emulation program (e.g.
OS2 WarpTerminal or Procomm) installed and must have a
free COM port (e.g. COM1). Activate the terminal emulation
program and check that the port settings for the free COM port
are: 19200 bps, 8 data bits, no parity, 1 stop bit and no flow
control. The free COM port must be connected via a special
cable to the RS232 port of the DVD player. This special cable
will also connect the test pin, which is available on the
connector, to ground (i.e. activate test pin).
Code number of PC interface cable: 3122 785 90017
Activation
Switch the player on and the following text will appear on the
screen of the terminal (program):
Figure 5-37
The first line indicates that the Diagnostic software has been
activated and contains the version number. The next lines are
the successful result of the SDRAM interconnection test and
the basic SDRAM test. The last line allows the user to choose
between the three possible interface forms. If pressing C has
made a choice for Command Interface, the prompt (“DD>”) will
appear. The diagnostic software is now ready to receive
commands. The commands that can be given are the numbers
of the nuclei.
Command Overview of Nuclei
The following table gives an overview of all available nuclei.
The first column contains an identification number, the second
contains the name of a nucleus and the last column indicate the
description of the nucleus.
Note: User confirmation is necessary during front panel tests
Basic Diagnostic Nuclei
Processor and Peripherals
Components
Audio
Video
DVDv4 Diagnostic Software version 4.03
SDRAM Interconnection test passed
Basic SDRAM test passed
Front Panel Processor: SLAVE 4
(M)enu, (C)ommand (F)lash lguana or(S) 2B-interface?[M]:@ C
DD:>
CL 16532162_053.eps
080102
Ref. # Reference Name Remark
1 BasicSpAcc Serial port Access test/
initialization
2a BasicInterconDram Data and address bus
Interconnection
(only for development)
2b BasicInterconSdram Data and address bus
interconnection
3 BasicDramWrR DRAM Write Read
(only for development)
4 BasicSdramWrR SDRAM Write Read
Ref. # Reference Name Remark
6 PapChksFl Checksum FLASH
8a PapSgsAclkCdda Internal PLL CLK in CD-DA
mode
8b PapSgsAclkDvd Internal PLL CLK in DVD
mode
8c PapSgsAclkDvd96 Internal PLL CLK in DVD
(96kHz) mode
10 PapFlashWrAcc FLASH Write Access
(only for development)
11 PapI2cNvram I2C NVRAM access
12 PapI2cDisp I2C Display PWB
13 PapS2bEcho S2B Echo
14 PapS2bPass S2B Pass-through
15 PapNvramWrR NVRAM Write Read
62 PapChksSum Show checksums stored in
flash
Ref. # Reference Name Remark
16 CompSdramWrR SDRAM Write Read
Ref. # Reference Name Remark
18a AudioDeemp0On
AudioDeempOn
(DVD2B) Audio De-emphasis 0 On
Audio De-emphasis On
(DVDv2B)
18b AudioDeemp0Off
AudioDeempOff
(DVD2B) Audio De-emphasis 0 Off
Audio De-emphasis Off
(DVDv2B)
19a AudioMuteOn Audio Mute On
19b AudioMuteOff Audio Mute Off
20a AudioPinkNoiseOn Audio Pinknoise On
20b AudioPinkNoiseOff Audio Pinknoise Off
21a AudioSineOn Audio Sine signal On/Off
21b AudioSineBurst Audio Sine signal Burst
56a AudioLfePortHigh Set the LFE_SEL port to
HIGH
56b AudioLfePortLow Set the LFE_SEL port to
LOW
Ref. # Reference Name Remark
17a VidPortOutAA Output the value 0XAA at
the Digital Video Interfac
e Port
17b VidPortOut55 Output the value 0X55 at
the Digital Video Interfac
e Port
23a VideoColDencOnPAL Colourbar (PAL) DENC
On
23b VideoColDencOff Colourbar DENC Off