Thursday, November 26, 2015

JBL SB 300 SOUND BAR POWER SUPPLY CIRCUIT DIAGRAM

SOUND BAR 

JBL SB 300 

POWER SUPPLY CIRCUIT DIAGRAM 

SUBWOOFER REAR-PANEL CONTROLS

 Status LED: Indicates the subwoofer’s operational status:
# Lights blue continuously when the subwoofer is on and linked to the soundbar.
# Slowly flashes blue when the subwoofer is on and the wireless link is not established between the subwoofer and the soundbar.
# Rapidly flashes blue during the wireless pairing process.
# Lights amber continuously when the subwoofer is in the Standby mode.
# Turns off when the subwoofer’s Power switch is in the “Off” position.
Level Control: Use this control to balance the subwoofer’s volume with that of the soundbar. Turn the knob clockwise to increase the subwoofer’s volume; turn it counterclockwise to decrease the subwoofer’s volume.
Cutoff Control: This knob adjusts the subwoofer’s cutoff between 40Hz and 200Hz.The higher you set the Cutoff control, the higher in frequency the subwoofer will operate and the more its bass will “overlap” that of the soundbar. This adjustment helps achieve a smooth transition of bass frequencies between the subwoofer and the soundbar for a variety of different rooms and subwoofer locations.
Phase Switch: This switch determines whether the subwoofer driver’s piston-like action moves in and out in phase with the speakers in the soundbar. If the subwoofer were to play out of phase with the soundbar speakers, some of the sound waves produced by the subwoofer or soundbar could be canceled, reducing bass performance and sonic impact. This phenomenon depends in part on the relative placement of the speakers in the room..
Wireless Pairing Switch: Press this switch to initiate wireless pairing between the subwoofer and the soundbar.
Power Switch: Set this switch to the “On” position to activate the subwoofer. In normal operation, this switch will be left in the “On” position.. If you will not be using the subwoofer for an extended period – for instance, if you’re going on vacation – set the Power switch to the “Off” position.
Power Cord Connector: Connect the included power cord here and into an active, unswitched AC outlet.
IMPORTANT: Do not connect the power cord to an AC outlet until you have made and verified all other connections.
SOUNDBAR REAR-PANEL CONTROLS AND CONNECTIONS

WIRELESS PAIRING SWITCH:  this switch to initiate wireless pairing between the soundbar and the wireless subwoofer. See Pairing the Units for Wireless Operation, on page 6, for more information.
EQ SWITCH: Use this switch to adjust the soundbar’s bass for either wall or table mounting. If you’re mounting the soundbar on a wall with the included wall-mount brackets, set the EQ switch to the “Wall” position for the most natural-sounding bass performance. If you are placing the soundbar on a table, set the EQ switch to the “Table” position for the most natural-sounding bass performance.
AUX INPUT CONNCETION ANALOG :Use the included stereo audio cable to connect the stereo analog outputs of your TV, DVD player or cable/satellite tuner here.
OPTICAL CONNECTION DIGI: If your TV, DVD player or cable/ satellite tuner has an optical digital output, connect it here.
NOTE: You can connect different source components to the analog and digital connections.
POWER CONNECTION: Connect the included power cord here. See Power Connections, on page 5, for more information.
IMPORTANT: Do not connect the power cord to an AC outlet until you have made and verified all other connections.
POWER SWITCH: Set this switch to the “On” position to activate the soundbar. In normal operation, this switch will be left in the “On” position.
If you will not be using the soundbar for an extended period – for instance, if you’re going on vacation – set the Power switch to the “Off” position.
SOURCE CONNECTION

ANALOG :Use the supplied stereo audio cable to connect the soundbar’s Source 1 (analog) input to your TV’s stereo audio output. If your TV has two sets of audio output jacks, use the set that has a fixed (not variable) output level. This will let you turn your TV’s speakers all the way off while the TV still supplies a constant audio signal to the soundbar.
DIGITAL: If your DVD player, cable tuner or satellite tuner has an optical digital output, you can use an optical digital audio cable to connect it to the soundbar’s Source 2 (optical digital) input.
NOTE: If your DVD player, cable tuner or satellite tuner does not have an optical digital output, you can connect its analog audio output to your TV. The TV will send its audio signal to the soundbar through the analog connection described above.
POWER :After verifying that all of the source connections have been made properly, plug the supplied power cords into the soundbar’s and subwoofer’s Power Cord connectors, and plug the other ends into active, unswitched AC outlets. Do NOT plug these cords into the accessory outlets found on some audio components.
 POWER SUPPLY CIRCUIT
USING 0B2298- OB2535 
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