JBL SUB333 - 60W Subwoofer - Circuit Diagram
SUB333 – JBL 60W Sub-woofer - Dolby
Pro Logic Surround Processor/Amplifier/Sub-woofer - Schematic
Load
Impedance (speaker) 6 Ohms.
Rated
Output Power 30 Watts.
Max.
Output Power 35 Watts.
Subwoofer
Amp 60w x 1 ch. Section.
Load
Impedance (speaker) 4 Ohms.
Rated
Output Power 60 Watts. 60w (BW 30-120Hz).
The Automatic
Turn-On feature will turn the ESC333 on as soon as a source connected
to its digital inputs (such as DVD, CD player with digital output, or
any other device featuring a coaxial or optical digital output) is
switched on, or as soon as the unit connected to its last-used analog input starts outputting sound.
When using
digital inputs, the Automatic Turn-On can be activated by turning on
either one of the connected digital sources such as a DVD player or a CD
player with digital output. When using analog inputs (TV or AUX),
Automatic
Turn-On is available only for the device that was last listened to before the ESC333 shut down.
In
order to listen to the other device, the ESC333 input needs to be
manually selected by using the Input button on the product and on the
remote, which, in turn, disables the Automatic Digital-Input Selector until the ESC333 is shut down.
Schematic (Circuit Diagram) [Click on the schematics to zoom in]
The
Automatic Turn-Off shuts the unit down five minutes after all sources connected
to its digital inputs are powered down and the device connected to its selected
analog input stops playing. The
Automatic Digital-Input Selector automatically selects the source connected to
its digital inputs when that source is powered on.
Upon
power down of this
digital unit, if no other source is on, the ESC333 will switch itself
off after 5 minutes. If the analog source that was selected prior to the
digital source
turning on is still playing, the ESC333 will switch back to that other
source.
Once a digital source is powered on and selected as an input, turning on
a
device connected to the other digital input will not switch the input
until the
selected digital device is first powered off. These two features can
only be
used if the customer does not manually turn the ESC333 on or off, and
does not
manually select an input source. Once either of these selections is made
manually,
the automatic features are disabled as follows:
1. If the ESC333 is turned off manually, it will not turn back on automatically until five minutes after the source connected to the ESC333 is shut down. During these five minutes, it can be turned on either from the front panel or via the remote control
1. If the ESC333 is turned off manually, it will not turn back on automatically until five minutes after the source connected to the ESC333 is shut down. During these five minutes, it can be turned on either from the front panel or via the remote control
2.
Once an input source is selected manually, the Automatic Source-Selection
feature will remain disabled until the ESC333 shuts down.
3. Once any one of the two devices connected to the ESC333 digital inputs is powered on and its input is selected by the ESC333, the device connected to the other digital input of the ESC333 cannot be automatically selected until
the already-selected digital device is powered down.
Dolby
Digital, unlike “matrixed” systems (such as Dolby Pro Logic) that derive and
decode multichannel sound from two channels of sound, is capable of delivering
information for one subwoofer and five full-range channels as discrete and individual channels in digital AC-3 data format from sources such as a DVD
player. The result is clear and accurate digital sound to each speaker, along
with availability of stereo-surround effects (Dolby Pro Logic features mono surrounds). Dolby Digital is capable of delivering several different formats of
surround sound, the most robust one being the 5.1-channel mode, which provides
separate signals for five satellite speakers as well as for a subwoofer. The ESC333
features a “5.1-Ch” indicator that illuminates when a Dolby Digital 5.1-channel
encoded signal is present. Dolby Digital can also provide other AC-3 digital
multichannel signals, as well as 2-channel signals, which can be decoded via
Dolby Pro Logic processing into multichannel surround sound. In the latter
case, both the Dolby Pro Logic and Dolby Digital indicators will illuminate in
the ESC333 display
3. Once any one of the two devices connected to the ESC333 digital inputs is powered on and its input is selected by the ESC333, the device connected to the other digital input of the ESC333 cannot be automatically selected until
the already-selected digital device is powered down.
