Service Modes, Error Codes and Fault Finding
5.
5.
Service Modes, Error Codes and Fault Finding
5.1
General
Please refer to the service manual of the recorder for a
description of the complete Diagnostics Software. In this
manual only drive specific error codes are explained.
5.2
Self test
A power on self-test is incorporated in the software of this drive.
With DSW command 902 (Chrysalis Mpeg Codec) the set
software can retrieve the result of the self-test.
Figure 5-1 Example, nucleus 902 showing no communication with
the OPU
Following table gives the output format of this nucleus.
Figure 5-2 Self test Results
Bit
Byte
0
tray*
ttm*
pcs*
laser forward
sense
1
real dsp*
hdr80
cheetah
laconic
elantec
2
eeprom
eeprom
checksum*
eeprom empty*
iic
*error code not detected in VAD8031/VAD8041
Forward Sense Tests if the forward sense value measured during drive startup is within normal range
HDR80
Performs a read/write test on a register (HDR 80 is an internal module of Centaurus)
Cheetah
Performs a read/write test on a register
Laconic
Read the IC version (fixed) and checks if it's ok
Elantec
Performs a read/write test on a register
Eeprom
Performs a read/write test on an address
I2C
Tries addressing all I2C devices in the system - if one fails, this test fails
Please note that if the I2C test fails, most other IC tests will fail as well.
3
2
1
0
Reserved
Reserved
Reserved
7
6
5
4
Содержание VAD8041
Страница 4: ...Directions For Use EN 4 VAD8041 3 3 Directions For Use Not applicable ...
Страница 14: ...EN 14 VAD 8041 6 Block Diagrams Waveforms Wiring Diagram Testpoints Overview TR 22005_001 070704 ...
Страница 30: ...EN 30 VAD 8041 7 Electrical Diagrams and Print Layouts ...
Страница 47: ...Spareparts List EN 47 VAD8041 10 10 Spareparts List 10 1 Exploded Views Basic Engine TR 22001_001 300604 ...
Страница 49: ...Spareparts List EN 49 VAD8041 10 DVD M TR 22003_001 300604 ...