Rolls DB14 AV Interface Manual & Schematic 电路图.pdf

Owners Manual DB14 AV PRESENTER GND-LIFT SPECIFICATIONS Max Input Level: +20 dB Max Output Level: +20dB RCA, 0 dB XLR Frequency Response: (Low Z) 50 Hz to 16 kHz Weight: 1 lb (.45 kg) Size: 2” x 3.5” x 1.25” (5 x 9 x 3.2 cm) 1 Rolls Corporation 5968 So 350 West MurrayUtah 84107 1 DB14.SCHA 1 february 2010 Document Number: Date: Rev: Sheetof DB14b AV Presenter Ba INPUTS OUTPUT R2 10K R1 10K 12 3 J2 XLR JACK M T1 XFMR AUDIO PC J1 3.5STJK 1 2 3 J2A RCAX4 PC 4 5 6 J2B RCAX4 PC P2 P100K P1 P100K 3 1 2 SW1 SPST DB14 AV PRESENTER - Splits Stereo RCA and stereo 1/8” (3.5mm) signals - Individual Right and Left level controls - Transformer balanced XLR mono output. The DB14 is a special purpose direct box for ap- plications where a stereo source signal can be separated, and individual volume controls used for each track such as an AV presentation from a laptop computer, or a rehearsing choir to a music track. It has stereo RCA and 1/8” inputs, 2 volume controls, RCA and XLR outputs, and uses no power. Thank you for your purchase of the DB14 AV PRESENTER. The DB14 is a special purpose direct box for applications such as connecting a laptop computer to a sound system. Or where needed, a stereo source signal can be separated, and individual volume controls used for each track such as a rehearsing choir to a music track. It has stereo RCA inputs, a stereo 1/8” (3.5mm), 2 volume controls, RCA and XLR outputs, and uses no power. DESCRIPTION Right/Left In: RCA and 1/8” input jacks. For connection to a laptop computer, CD player, DVD player, etc. R/L Out: RCA jacks for sending the input signals out to a line level amplifi cation device. Low Z Out: Male XLR jack for sending out a mix of both A and B signals. Right/Left Volume: Controls the level of each input signal independently. GND-LIFT: Ground/Lift switch for disconnecting the ground of the XLR jack from the ground of the DB14b. SCHEMATIC WARRANTY For information on the Rolls One Year Limited Warranty, and to register this product, visit our website at Rolls Corporation 02-10 RIGHTRIGHT VOLUMEVOLUME LEFTLEFT VOLUMEVOLUME RIGHT/LEFTRIGHT/LEFT ININ R/LR/L OUTOUT LOW Z OUTLOW Z OUT AV AV PRESENTERPRESENTER DB14bDB14b To snake or mixer To unbalanced input CONNECTION Shown below is a connection example for the DB14b. The laptop computers stereo output is connected to the 3.5mm stereo input of the DB14b via a stereo 3.5mm to 3.5mm cable. NOTE: The Right and Left signal levels are adjusted individually by the Right and Left Volume controls. The XLR output is connected to a balanced low impedance input on a snake or a mixer balanced input. The two stereo RCA outputs may be connected to unbalanced high impedance stereo, or individual right and left mixer inputs. RadioFans.CN 收音机爱 好者资料库