JBL CONTROL SUB 6, Service Manual

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Powered Subwoofer SUB 6/10
SUB6/10 CONTROLS
1. Volume/Power - This knob controls the volume as well
as the power status of the subwoofer. The Sub6/10
subwoofers incorporate an AutoTurn-On/Off Circuit.
Turn the volume knob completely counterclockwise to
turn the subwoofer OFF.
2. LED - Red/Green. This LED indicates the Mode status
that the subwoofer is in. The LED will light Green
when the Volume knob is turned clockwise to ON.
The LED will light Red when the Volume knob is
turned off (the knob turned fully clockwise) or the
receiver/amplifier has been turned off for five
minutes. The subwoofer will turn on when your
receiver/amplifier begins playing again.
3. Crossover Frequency - The crossover frequency
knob determines the highest frequency your
subwoofer will reproduce. It allows a seamless
transition from the subwoofer to the satellite
speakers.
4. Phase - The phase switch is used to adjust the
relative polarity of the subwoofer.
5. High Level Inputs - These High Level Inputs are for
receivers that do not have line-level “pre-amp out”
or “subwoofer out” jacks. When a pair of main or
satellite speakers are attached to the OUTPUT
terminals, they are driven the full range of
frequencies as generated by the music source
(receiver, amplifier, etc.)
6. Low Level Input - These left and right Line Level
Inputs are normally used when the receiver/
processor has line-level “pre-amp out ” or
“subwoofer out” jacks.
7. Mono/Stereo - This setting of this switch affects the
subwoofer when using the Low Level Input only.
If you are using a dual (stereo) RCA cable, set the
switch to STEREO; if using a single (mono) RCA
cable, plug into the (R) Input Jack and set the switch
to MONO.
8. Low/High - The setting of this switch depends on
which method of Input Connection you will be using.
When using the Low Level Input (RCA Connectors),
set the switch to LOW; when using the High Level
Input (Speaker Connectors), set the switch to HIGH.
9. Fuse - Use only same type of fuses. Use a 3.15A
250V fuse for the 120 volt American version and use
a 4A 250V fuse for the 230 volt European version.