Coustic 160SE User Manual
Page 8
Figure 12. Typical multi-amplifier system
T RO U B L E - S H O OT I N G S E C T I O N
SYMPTOM
PROBABLE CAUSE
1
No power
Check connections to the amplifier's Ground, B+ & Remote
terminals. Check connection at "+" terminal of the battery.
Check the remote turn-on terminal. Ensure it receives power
when the source is turned on (or when the switch is turned
on). Refer to the Installation Section. Check the power line
fuse: if fuse is blown, replace it; if fuse continues to blow,
check the power wire and also the amplifier for a short. If the
short is in the power wire, fix it; if the short is in the amplifier
itself, see your Coustic dealer.
Check the voltage at the amplifier, and the remote ON/OFF
lead. The voltage should measure between 11 V-15V. If the
measurement is beyond this range, have the source unit
checked out by an authorized dealer.
2. Power without sound with
Turn the amplifier off, and Check all input & output signal
red power/protection
cables and connections. Check the speakers for short with a
indicator on
VOM or by connecting them to another audio system. After
making sure everything is normal, turn the amplifier on again.
3. Power without sound with
The continuous red light of the power indicator signals a high
red power indicator on
internal operating temperature, which results in the amplifier
switching off temporarily; when the amplifier cools down to a
safe level, the amp will automatically restart.
4. No sound from one side
Check balance control.
Check speaker connections.
Check signal input connection.
5. Very low sound from
Check your radio's fader control.
both radio & tape
Check the amplifier's Input Sensitivity Level.
6. Frequent automatic amplifier
This indicates that the amplifier is operating at a continually
shut down
undesirable high internal temperature.
High operating temperature caused by inadequate ventilation.
(Refer to the sub-section titled LOCATION for better amplifier
location).
High operating temperature caused by an excessively low
impedance load, say below 2 ohms. Check for bad speakers
and/or electronic crossover, proper passive crossover
components; if all else fails, try rewiring the entire system.
High operating temperature can be caused by an incorrect
input sensitivity level (refer to sub-section titled INPUT
SENSITIVITY ADJUSTMENTS for correct setting).
7. "Motorboating": The amplifier
Check the amplifier's connection to the battery.
power indicator going off
Check battery voltage. If low, recharge or replace battery.
repeatedly when the audio
Check all ground connections.
system is on.
14
15
www.coustic.com
2
3
1
4
5
6
LOUD
CD-328
–
+
LOUD
MUTE
ASM
MONO
DISP
WB
P.CL
SHUF
RPT
SCAN
EAS
P.ME
P.PLA
TUNE
SEL
MODE
BAND
DISC
PWR
EJECT
REL
II
–
+
–
+
A
B
HS-652a
6 1/2 inch Co-Axial
160SE
POWER AMPLIFIER
(crossover set at 80Hz)
400SE
POWER AMPLIFIER
(crossover set at 80Hz)
10RS
10" SUBWOOFERS
A
B
–
+
CD527 CD/RECEIVER
and CD CHANGER CONTROL
2
T.
RPT
3
Auto Aligned
Azimuth System
D.SCAN
1
4
5
6
TP
S
70
µ
S
POWER
PRO
G
MODE
AS
M
DOLBY B
RX-779
SHUFF
T. SCAN
D. RPT
P. PLAY
LOU
D
DIS
C
P.ME
M
TRACK
RESE
T
–
+
A.S.
®
CD Changer Control
TUNE
SEEK
70
µ
s TPS
AM FM 1 2
3
ST
LOUD
SHUFF D.SCAN DISC D.RPT
TRACK
ME
DIS
P
BAN
D
P.C
L
OPTION 1 -RCA Outputs
OPTION 2 -Speaker lead Outputs
(Note: You cannot use both RCA and
speaker lead inputs simultaneously!!)
A
B
Battery
B
Anybody’s leased car: high power In dash
FRONT
speaker lead
outputs
RCA
outputs
FRONT speaker
lead Inputs
LoZ
option 2
FRONT RCA
lead Inputs
HiZ
option 1