Yamaha T3n Owner's Manual - Page 6

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1. Specifications

Controls and Functions

■

Front Panel

POWER switch and indicator

Press to toggle the power on or off. The POWER indicator

lights up green when the power is ON.

If the ampliﬁer is connected to an amp control unit such as

the ACU16-C and the ampliﬁer has been commanded to

enter STANDBY mode, this indicator will light orange.

TEMP indicator

Lights up red if the heat sink temperature exceeds 85°C

(185°F).

PROTECTION indicator

When the protection system is active, the indicator lights in

red. No sound will be output from the speakers, since the

speakers are automatically disconnected from the ampli-

ﬁer's outputs.

The protection system actives in the following situations:

• When the ampliﬁer is turned on

The protection system actives for approximately 10

seconds when the ampliﬁer is turned on. After 10 sec-

onds, the protection system deactivates automatically

and the ampliﬁer is ready for normal operation.

• If the ampliﬁer overheats

The protection system activates if the heat sink tem-

perature exceeds 85°C (185°F). The ampliﬁer is

muted if the heat sink temperature exceeds 90°C (194

°F). The ampliﬁer operates normally after the ampli-

ﬁer cools down.

REMOTE indicator

This indicator will light green if the ampliﬁer is being con-

trolled by an amp control unit such as ACU16-C.

CLIP indicator

Lights up red when the output signal distortion on the corre-

sponding channel rises above 1% — indicating that "clip-

ping" has occurred because the signal level is too high.

SIGNAL indicator

Lights up green when the corresponding channel's output

level exceeds 1 Vrms (equivalent to 0.2 W into an 8 ohms

load, 0.4 W into a 4 ohms load or 0.8 W into a 2 ohms

load).

T5n/T4n/T3n Owner's Manual

Air

intake

MUTE indicator

This indicator will light red if the ampliﬁer is muted by an

amp control unit such as the ACU16-C. This indicator will

also light red while the PROTECTION indicator is ON.

Volume control knobs

Each control knob adjusts the volume of the corresponding

channel, in 31 steps from -∞ dB to 0 dB.

Note: Screw holes for security cover

These four screw holes are for attaching a security

cover to protect the volume setting. Since a secu-

rity cover and screws are not included in the ampli-

ﬁer, please prepare a security cover the same size

as indicated below and four M3 screws.

108 mm

Air intakes

The ampliﬁer uses forced-air cooling. The variable speed

cooling fan draws air in from the front and exhausts it

through the rear. The cooling fan speed varies depending

on the heat sink temperature: It operates at low speed when

it is below 40 °C (104 °F), increases in speed according to

increases in temperature, and operates at high speed when

temperature exceeds 60 °C (140 °F). Please be sure that

you do not block the air intakes or exhaust vents. Also,

clean the ﬁlter elements regularly. If the air intakes are

clogged with dust or debris, the ampliﬁer will overheat,

which may result in the ampliﬁer shutting down.

Front

Screw holes for handles

These four screw holes are for the included handles. Fix

the handles to the ampliﬁer, using the included ﬂat-head

screws.

T5n

Rear

Air

exhaust