SP / TC / GT

CENTURY SERIES

Century Series Console Power Supply

Century Series Consoles use a separate rack-mountable power supply which provides the specific voltages used by each console. Crest Audio’ Century Series makes use of two different power supplies. The model and frame size of your particular console determines which of the two supplies should be used. SP, TC, and GT consoles use power supplies as follows: Consoles with frame sizes of 24 or 32 modules use supply model XCVA04; consoles with frame sizes of 40, 44, 52, or 64 modules use supply model XCVA06.

Press to Reset

ON

 

+20V

+48V

4A

C O N S O L E S

 

 

Power Supply

-20V

+24V

 

 

 

21

5 4 3

76

Pin 1 +24V

Pin 2 +20V

Pin 3 Analog

Pin 4 Analog

Pin 5 Digital

Pin 6 +48V

Pin 7 -20V

POWER OUT

POWER OUT

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á L'HUMIDITÉ

Designed & manufactured in the USA by:

A division of Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

CONSOLE

CHASSIS

G RO U N D

GROUND

Model XCVA04

±20V @ 4 + 24V @ 4 + 48V @ 1

+24VS/N@ 6

± 20V @ 6

Model XCVA06

MAXIMUM AC IN:

XCVA04: 415 WATTS

XCVA06: 825 WATTS

Supply Identification

The type of power supply can be identified by the model num- ber shown on the back of the chassis and panel label..

Power Requirements

The Century Series power supplies have certain electrical requirements to operate properly. If possible the power supply should be connected to a dedicated circuit. Should any other appliance on the same circuit draw enough current to overload the circuit, the breaker or fuse will trip causing loss of power to the console. Note the maximum current draw specifications at right. Be sure that the circuit to which you connect the sup- ply can handle the draw.

The power switch on the supply front panel is also a circuit breaker, there is no power fuse. Should the supply ever shut down, or trip at start up, simply push the switch to the off posi- tion and then on again.

Ground Linking

Safety Considerations -

Each new power supply is shipped with the AC third wire ground connected to the console chassis ground. The connec- tion is made at the rear of the power supply unit. This is neces- sary for safety reasons so that exposed metal parts are ground- ed. In the event of a live conductor making contact with the console chassis or the power supply chassis then the current will flow to ground without a safety hazard arising. Note that when the console is disconnected from the power supply the chassis ground connection to AC third wire ground is broken and safety protection is lost. For uninterruptible grounding, in a fixed installation for example, make a connection directly to the console chassis from the safety ground. Disconnect the ground link on the rear of the power supply. This disconnects console ground from power supply AC third wire ground which would otherwise create a hum-loop.

Twin Supply Operation

When twin supplies are in use for automatic back-up, then the ground links on both supplies should be fitted.

In a situation where the safety ground to the console chassis has been connected and the ground path via the power supply is causing a hum-loop, then disconnect the ground links on BOTH power supplies.

Console and Power Supply Grounding

Console chassis ground is electrically connected to audio ground, pin 1 of XLR connectors and 1/4" sockets and to the terminal 'CONSOLE GROUND' at the rear of the power sup- ply. The AC third wire connection in the power supply cable connects the metal chassis of the power supply to safety ground. This connection should never be disturbed. Hazardous voltages exist inside the power supply which require the case to be grounded. When rack-mounted, the power supply ground may transfer to the rack case thru the front fixing screws, though this connection is not reliable. When a console is con- figured within a complete sound system the grounding require- ments may call for the ground link to be disconnected. This is permissible only when an alternative ground path has been provided. If in doubt seek the advice of an experienced electri- cal engineer.

Power Supply

Max Current

Max Current

Model

Draw @ 120V

Draw @ 240V

XCVA04

7 Amps

4 Amps

XCVA06

9 Amps

5 Amps

Serial Number Tag

S/N

Model XCPS-40

±20V @ 4

 

 

 

+24V @ 4

 

 

+48V @ 1A

 

 

+24V @ 6A

Model Number

 

±20V @ 6A

 

 

Model XCVA06

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Peavey TC, GT owner manual Century Series Console Power Supply