LAWO mc256 MKII, Technical Manual

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mc²56 MKII Technical Manual V5.10.2/1 53
Chapter 2: Installation
Installing the DALLIS Unit(s)
Mounting the Cards
Warning
To avoid any unpleasant clicks or pops, the system resets when a Phantom Power card is replaced.
Therefore, you should only replace a Phantom Power card when off air!
The DALLIS plug-in cards carry highly sensitive electronic components, and therefore should only be handled
by authorized personnel, and with the utmost care.
ALWAYS observe the following procedures:
1. Discharge yourself before touching a plug-in card.
2. Wear conductive safety-shoes and grounding wristbands to reduce the risk of electrostatic charging.
3. DO NOT bend the cards.
4. To remove an existing card, unfasten the front panel screws and pull out the card.
Note that some DALLIS I/O cards include DIP switches to set certain features of the cards. Therefore, when
replacing cards, check the DIP switch settings before inserting the new card! Further information can be found in
the data sheet, available in the "
mc2_Nova73_documentation " guide.
Note also that the DALLIS master board provides a switch to set whether the board performs a cold or warm start
when powered on. For details please consult the relevant data sheet.
5. When fitting a new card, make sure that it glides smoothly into the top and bottom guide-rails.
When fitted correctly, it will lock into place.
6. ALWAYS fasten the front panel screws in order to fix the card in place. This protects the operator from
contact with live parts; protects the card from being pulled out unintentionally; and reduces the emission of
electro-magnetic radiation.
7. When you have fitted all the plug-in cards for your system, close any empty slots with dummy plates (For
single width slots use part number 940/31, and for double width slots use 940/33. Use part number 940/32 to
blank the second master board slot).