User manual

(5.0E) 2-9
WARNING!
CAUTION!
IMPORTANT!
2.10. Controller module exchange
The modular design of the P1200A allows modules to be easily
replaced or exchanged without the need for special adjustment or
alignment. However, the mainframe internal output connector
wiring needs to be re-configured when swapping a TOP or AMP-L
module for a subwoofer module - and vice versa.
The replacement of a controller module requires the exchange of
the controller motherboard (board with a number of sub boards
mounted at right angles) and the front panel with controls and
indicators and - if necessary - the re-configuration of the
loudspeaker connector board.
Make sure the mainframe is configured correctly. If the module
positions are swapped or the output wiring is wrong, TOP cabinets
could be driven with SUB signal. This can damage the drivers.
The ampMAX module consists of a single, double width front panel
and two identical controller cards which automatically configure
themselves for Hi/Lo operation when the active mode is selected.
ampMAX modules can only be used with P1200A mainframes from
version 11 onwards (Z2300.000.11).
When carrying out the following procedure it is absolutely vital for
your own personal safety that the unit is completely disconnected
from the mains power supply.
Tools required
− Phillips #1 screwdriver
− 2.5 mm Allen (Hex) key
− screwlock compound (loctite) or lacquer
Controller module disassembly
1. Undo the 6 screws securing the top cover in place and
disconnect the safety earth (ground) strap on the underside of
the cover before removing it.
2. Remove the bottom cover in the same way.
3. Undo the 2 screws securing the module front
panel, pull the front panel forward, unlock and unplug the
ribbon cable to the controller module motherboard.
4. Undo the 4 screws securing the module motherboard and
remove the modules towards the front of the mainframe. Board
B (right hand slot) should always be removed first and replaced
last. If board A (left hand slot) is being exchanged then board B
needs to be removed first. If only board B is to be exchanged
then board A can remain in place.
Controller module reassembly
1.Avoid damage by carefully refitting the
controller motherboards - these fit snugly with very little play.
On no account force them into place.
2. Secure the controller module motherboard(s) in place using 4 x
M2.5x10 screws and apply screwlock compound or lacquer.
3. Re-plug the front module ribbon cable connector ensuring that
the connector latches are locked.
4. Secure the front module with 2 x BS2.9x9.5 screws.