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Safety Instructions, Warnings and Notes
EN 4 DVD763SA2.
2.3 Service Hints
2.3.1 Switched Mode Power Supply
The power supply unit has to be replaced in case of failure. The
schematic provided in the manual is only for information and no
service parts will be available.
2.3.2 DVD Module
This module can be repaired as follows:
1. The VAL6011/14 is a combination of loading mechanism
and DVD-mechanism. Both are not repairable units and in
case of failure, it has to be replaced with a new loader
VAL6011/14.
Note: When replacing with a new VAL6011/14, two solder
joints have to be removed after connecting the OPU flex foil
to the mono board.
The solder joints, which shortcircuits the laser diodes to
ground, are for protection against ESD. Refer to figures 2-
5 and 2-6 for location of solder joints.
2. The mono board has to be repaired down to component
level. Repair handling of the monoboard requires a
workshop with sophisticated desoldering tools.
Figure 2-5 Solder joints
Figure 2-6 Solder joints
2.3.3 ComPair
For assistance with the repair process of the monoboard an
electronic fault finding guidance has been developed. This
program is called ComPair.
This ComPair program is available on CDROM.
The version of the CDROM for repair of the monoboard is V1.3
or higher and can be ordered with codenumber 4822 727
21637. This is an update CDROM, so when the ComPair
CDROM is used for the first time, one has to install the ComPair
Engine CDROM V1.2 first.
The V1.2 CDROM can be ordered with code number 4822 727
21634 and has to registered after instalation. The procedure for
registration is explained in the help file of the program and in
the CDROM booklet.
The cable to connect the monoboard with a PC can be ordered
with codenumber: 3122 785 90017.
All the hardware and software requirements of the systems,
necessary for working with ComPair, are described on the
CDROM.
2.3.4 Service Positions
Refer to dismantling instructions for dismounting of the board.
Figures 2-7 to 2-8 shows the service position that are
recommended during repair of the boards.
Figure 2-7 SD4.00SA_CH module
Figure 2-8 DVD763SA model