User manual ROLLS RDB104

[. . . ] LIMITED WARRANTY This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. [. . . ] (2. 72 Kg) 120VAC (230VAC) 15VA ROLLS CORPORATION SALT LAKE CITY, UTAH 8/00 OWNERS MANUAL INTRODUCTION Thank you for your purchase of the ROLLS RDB104 Quad Active Direct Box. The RDB104 is an active impedance matching device with the added benefit of a variable level control. Its four channel design is ideal for a variety of applications including musicians, studios, and sound contractors. It is designed and manufactured carefully to provide years of long-lasting service. Please read the following manual carefully to ensure proper operation, and enjoy your new RDB104. Unpack and inspect the RDB104 box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. Please complete the Warranty Registration Card and return it to the factory. SCHEMATIC ROLLS CORPORATION 5968 South 350 West Salt Lake City, UT 84107 DESCRIPTION FRONT PANEL NOTE: CHANNEL ONE THROUGH FOUR DESCRIPTIONS ARE IDENTICAL. INPUT: 1/4" unbalanced jack for connection to an unbalanced, usually line-level, signal. LEVEL: Varies the amount of input signal from -infinity (off) to 0 dB. POWER LED: Indicates the RDB104 is connected toi an AC outlet and power is applied. POWER SWITCH: Applies power to the RDB104 when connected to an AC outlet. CHANNEL ONE CHANNEL TWO CHANNEL THREE CHANNEL FOUR POWER -00 0 -00 0 -00 0 -00 0 INPUT LEVEL INPUT LEVEL INPUT LEVEL INPUT LEVEL QUAD ACTIVE DIRECT BOX RDB104 TITLE: RDB104 QUAD DIRECT BOX Document Number: Ba RDB104. SCH Date: 17-Aug-2000 3 G R O U N D L I. [. . . ] 120 VAC 50/60 Hz 15 VA GND LIFT RISQUE DE CHOC - NE PAS ENLEVER RISK OF ELECTRIC SHOCK -30 dB PAD GND LIFT -30 dB PAD GND LIFT -30 dB PAD GND LIFT -30 dB PAD NRTL /C WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. NO USER SERVICABLE PARTS INSIDE. J3 J6 J9 OUTPUT INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT INPUT 1 1 1 1 D12 LDSG POW ER 3 3 3 3 Size 2 2 2 30D b PAD 30D b PAD 30D b PAD 30D b PAD SW 1A SW 3A SW 5A SW 7A DPDT DPDT DPDT 2 DPDT 503 C1 R27 47 R37 47 R47 47 R25 1K R26 1K R36 1K R45 1K R46 1K R35 1K +V 3 C24 1U R5 1K R6 1K O IU6O 7812 U5 3 C25 47U R4 10K R24 10K R34 10K R44 10K 4560 I 4560 4560 4560 1 C22 C23 U1B +V +V +V U3B +V U4B 2 7912 7 7 7 7 -V R7 47 R12 4 . 7 K 3 1 3 1 3 1 3 1 1000U . 16V C17 503 C19 503 C20 503 C21 503 6 5 6 5 6 5 6 R33 10K R3 10K R43 10K 5 D13 1N 4001 D14 1N 4001 D15 1N 4001 D16 1N 4001 1 1 1 1 4560 4560 -V R29 -V R39 4560 -V R49 R9 1K 1K 1K U1A U2A U3A 1K 4560 U4A 2 3 2 3 2 3 2 100K 100K 100K P100K P100K P100K 100K R28 R38 R48 3 ATTENUATOR ATTENUATOR ATTENUATOR ATTENUATOR P100K R8 -V P1 P2 P3 P4 R21 10K R31 10K R41 10K R1 10K P H O N E 1 /4 J1 P H O N E 1 /4 J2 P H O N E 1 /4 J4 P H O N E 1 /4 J5 P H O N E 1 /4 J7 P H O N E 1 /4 J8 P H O N E 1 /4 J10 P H O N E 1 /4 J11 T1 M C I407 4024 . RONT . RONT . RONT . RONT REAR REAR REAR REAR SW CH1 CH2 CH3 CH4 PLUG PL1 AC M ALE SW 2 SPST G 1 2 G 1 4 2 8 1 4 2 8 1 4 2 8 1 4 2 8 BLOCK DIAGRAM The diagram shown below represents one channel of the RDB104. All channels are identical. Output Buffer OUTPUT 30dB PAD SWITCH 2 INPUT LEVEL GROUND LIFT [. . . ]