Psw-D115 Controls And Their Function - JBL PSW-D115 Service Manual

Amplifier/Subwoofer
1. Power LED - Will illuminate when the unit is turned on
with the main power switch. This light will be RED when
the unit is plugged in and not receiving a signal; when
the PSW-D115 receives a signal, the light will cycle to
GREEN. If no signal is received after 10 – 15 minutes
the light will cycle back to RED (standby) until a signal is
present again.
2. Power Switch - Main Power Switch to the
PSW-D115; turn ON to energize the subwoofer. Under
normal operation, Power Switch may be left ON to utilize
the Auto ON/OFF feature. For extended periods of
non-use, or vacations, it is recommended that the
PSW-D115's Power Switch be turned OFF.
3. Level Control - The subwoofer Level Control, adjusts
the volume of the subwoofer relative to the rest of the
system.
4. Video Contour - The subwoofer Video Contour
Control, optimizes the subwoofer's performance for movie
listening. When the video-contour switch is "on" the
subwoofer's performance is tailored to deliver the impact
and excitement of today's movies. The green LED will
illuminate when the video-contour switch is on.
5. Speaker In Jacks - Main Input connection to
subwoofer when line level, subwoofer, or pre-amp output
connectors are not available, or when a high pass filter
(set at 150Hz) to main loudspeakers is desired through
the Speaker Output Jacks.
6. Speaker Out Jacks - Connected to main loudspeakers
when the Speaker Input Jacks are used.
7. Phase Switch - Changes the subwoofer's output to be
in phase or 180 degrees out of phase with the program
material.
8. Line Input - Main Input connection to subwoofer
(preferred).
9. Direct In - If you will be connecting the PSW-D115 to
a receiver/processor containing a Dolby Digital or DTS
surround technology, use this single RCA connection.
See the owner's manual for complete instructions.
10. Line Output - When using the Line-Level Input jacks,
these are connected to an external power amplifier or
receiver to power the main loudspeakers with a high pass
filter if desired.
11. Direct Out - This allows you to connect more than
one PSW-D115 together; connect this output jack to the
Direct input jack on the second subwoofer.

PSW-D115 CONTROLS AND THEIR FUNCTION

12. High Pass Control - Controls the roll-off point of the
lowest frequency produced at the High Pass Output
Jacks.
13. Low Pass Control - Controls the roll-off point of the
highest frequency the subwoofer will produce.
Front Panel
min
video contour
Rear Panel
SPKR In
L
C
R
SPKR Out
L
C
R
Power
Off On
PSW-D115
level
max
180 o 0 o
Phase
L
L
L
I
D
I
i N
N
r E
C
E
e
c O
I
t U
N
R
T
Direct Out
120
90 150
High
Pass
60 180
120
90 150
Low
Pass
60 180
1
3
4
5
7
8
9
10
11
12
13
6
2
6