EAW CAM80 Bedienerhandbuch PDF herunterladen (Seite 10)

10 – CAM160 / CAM80

5. THERMAL CONSIDERATIONS

The power ampliﬁer within the unit is convection cooled

rather than fan cooled. Heat is drawn away from the

ampliﬁer by the heatsink and radiated through the cooling

vents in the top and bottom cover.

When installing, be sure to allow sufﬁcient air space

around the top and rear of the ampliﬁer to allow

adequate cooling for the heatsink. Leave at least one rack

space above and below, and at least 6 inches behind the

chassis to allow proper ventilation.

If the ampliﬁer should overheat, a thermal switch turns

off the power ampliﬁer, allowing the heatsinks to cool

down. Once the ampliﬁer has cooled to a safe operating

temperature, the thermal switch resets and reactivates

the ampliﬁer. If this should occur, identify the cause of the

problem and take corrective action. For example:

• Provide better ventilation,

• Install a fan in the rack to move more air,

• Make sure the ampliﬁer is not overloaded with too

low of a load impedance or by a short circuit on the

speaker line.

RACK MOUNTING

The front panel rack holes allows the unit to be ﬁtted

within a standard 19" rack.

The unit still needs to be supported underneath, due to the

weight of the power and output transformers.

6. CONNECTIONS

Inputs 1 and 2 use a dual-purpose input connector which

can accept XLR and 1/4" TRS and TS plugs.

The AUX 1 and 2 inputs use unbalanced RCA connectors,

as does the MAIN IN and PREAMP OUT.

XLR Connectors

Inputs 1 and 2 can accept 3-pin male XLR connectors, wired

as follows:

XLR Balanced Wiring

Pin 1 = Shield

Pin 2 = Hot (+)

Pin 3 = Cold (–)

1/4" TRS Phone Plugs and Jacks

“TRS” stands for Tip-Ring-Sleeve, the three connections

available on a stereo 1/4" or balanced phone jack or plug.

TRS jacks and plugs are used for balanced signals and

stereo headphones:

1/4" TRS Balanced Mono wiring:

Sleeve = Shield

Tip = Hot (+)

Ring = Cold (–)

1/4" TS Phone Plugs and Jacks

“TS” stands for Tip-Sleeve, the two connections available

on a mono 1/4" phone jack or plug. They are used for

unbalanced signals.

1/4" TS Unbalanced Wiring:

Sleeve = Shield

Tip = Hot (+)

RCA Plugs and Jacks

RCA-type plugs (also known as phono plugs) and jacks

are often used in home stereo and video equipment and

in many other applications. They are unbalanced and

electrically equivalent to a 1/4" TS phone plug.

RCA Unbalanced Wiring:

Sleeve = Shield

Tip = Hot

Phoenix-type Connectors

These connectors use small screws to clamp the wires in

place. They can be balanced, using three conductor wiring,

or unbalanced using two-conductor wiring and a small

wiring link joining the ground and negative connector.

Balanced Unbalanced

1 2 3

SHIELD

COLD

HOT

SHIELD

COLD

HOT

SHIELD

COLD

HOT

SLEEVE

TIP

TIPSLEEVE

TIP

SLEEVE

SLEEV E

TIPSLEEV E

SLEEVE

TIPSLEEVE

TIP

RING

TIP

SLEEVERING

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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