Protection circuitry service, Troubleshooting, Specifications – Soundstream Technologies SA.244 User Manual

Page 12

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PROTECTION CIRCUITRY

SERVICE

Your SA amplifier is protected against both overheating and short circuits by

means of the following circuits:

l

Main power supply fuses.

l

A fail-safe thermal protection circuit activating at 95°C.

l

Self-resetting circuit breakers to protect against short circuits.

NOTE: you experience blown main power supply fuses, DO NOT increase

values

beyond the original

values!

Doing so will void your warranty

and may

damage your amplifier.

TROUBLESHOOTING

PROBLEM

No sound and LED is not lit

Repeatedly blown amp

fuse,

frequent activation of Thermal

Protection Circuit

No sound from channels 3 4 with
2 channels of input

Channels cut in and out

CAUSE

l

no

power or ground at amp

l

no remote turn-on signal

l

blown fuse near

battery

l

check speaker

impedance may be less than 2
ohms stereo or 4 ohms mono

l

speaker or leads may be shorted

l

verify adequate amplifier

ventilation

l

check input settings on bottom of

amplifier-switch should be set to
inputs “1 & 2”

l

circuit breakers are activating.

Check for a possible short in the
speaker wire or in the speaker
itself

l

verify that the impedance of the

load is at or above the minimum
rated impedance

Your Soundstream amplifier is protected by a limited warranty. Please read the

enclosed warranty card.

SPECIFICATIONS

POWER OUTPUT

Stereo

2

Stereo

Bridged

I

1

I

I

1

150wx 1

THD

0.1%

Signal to Noise

Frequency Response

20 Hz to 20

0.5

Damping

200

Input Sensitivity

100
(40

2.5 V on the

subwoofer channel)

Input Impedance

Crossover Output

12 k ohms

400

out 100

input at 1

CROSSOVER SPECIFICATIONS

High Pass: 12

shipped with 160 Hz S.I.P. (fixed on

Low Pass: 12

shipped with 80 Hz S.I.P.

24

shipped with 80 Hz S.I.P.

DIMENSIONS

W x

D x

H

13-l

W x

D x

6” H

W x

D x

H

22

23

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