Protection circuitry service, Troubleshooting, Specifications – Soundstream Technologies SA.244 User Manual
Page 12
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