Coda C45 Betriebsanweisung PDF herunterladen (Seite 9)

C45 User Guide Version 1.0 9

Maintenance

Caution: These servicing instructions are for use by qualified personnel only. Ensure that

Electrical power to the unit is disconnected before carrying out any maintenance.

Gain/Sensitivity settings

Gain settings are changed internally by simple jumper links. Two rows of pins marked - GAIN A and

GAIN B - are situated on the input PCB (PCB701). A jumper link sets the gain and the settings are as

follows:

Link 1 & 2 gives 32 dB gain

Link 3 & 4 gives 26 dB gain

Link 2 & 3 gives approx. 35.75 dB gain = 6 dBu/1.5 V sensitivity C45

Note: Factory setting is normally link 1 & 2 = 32 dB gain.

Setting higher gain does not change the maximum available power but changes the level of

signal input to achieve maximum power. In any case, provided that the input signal is less

than 20 dBu/7.7 V, the built in limiter circuit will prevent distortion within the amplifier.

The gain should be set to match the signal from the source, e.g. mixer, controller, equaliser

etc.

Air Filter

The filter behind the air intake apertures on the front of C-Series amplifiers should be cleaned or

replaced periodically, e.g. 3-6 months. (Filters in amplifiers located in more 'dirty' atmospheres may

require more frequent maintenance). Access is via the blue front panel retained by 2.5 mm Hex

screws. The filter should be 'dry' cleaned, using a vacuum cleaner preferably. Running the unit

without a filter is not recommended unless it is within a 'clean room'. Replacement filter material is

available.

No other regular maintenance is required.

If you have any doubt about carrying out this procedure, refer to a service engineer or contact

your dealer.

If your amplifier develops a fault, please refer to your supplier for service and technical

support. Do not attempt to repair the fault yourself as this will invalidate the warranty.

1 2 3 4 5 6 7 8 9 10 11 12

Keine Kommentare

Coda C45 Betriebsanweisung Seite 9