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 manufac- tured carefully to provide years of long-lasting service. Please read the following manual carefully to ensure proper operation, and enjoy your new RDB104.

INSPECTION

1. 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.

2. Please complete the Warranty Registration Card and return it to the factory.

SCHEMATIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rev:

1 of 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ROLLS CORPORATION

5968 South 350 West

Salt Lake City, UT 84107

TITLE:RDB104 QUAD DIRECT BOX

 

Sheet:

 

 

 

 

XLRJACKM

 

3 1GROUNDLIFT

2

 

 

 

 

 

 

XLRJACKM

 

3

1GROUNDLIFT

2

 

 

 

 

 

XLRJACKM

 

3

GROUNDLIFT

2

 

 

 

 

 

XLRJACKM

 

3

GROUNDLIFT

2

 

 

 

 

 

Size Document Number: Ba RDB104.SCH

Date:17-Aug-2000

 

 

2

J3

SW2

1

SPST

 

 

2

 

J6

SW4

1

 

 

2

 

J9

SW6

1

1

SPST

 

2

 

J12

SW8

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

SPST

 

 

 

 

 

 

 

 

SPST

 

 

 

 

 

30DbPAD

SW1A 3

2

1

DPDT 3

 

 

 

30DbPAD

SW3A

 

2

1

DPDT 3

 

 

 

30DbPAD

SW5A

 

2

1

DPDT 3

 

 

 

 

30DbPAD

SW7A

2 1

DPDT 3

 

 

 

 

 

 

 

C1 503 D12

LDSG

POWER

 

 

 

R12

4.7K

 

R5 1K

R7 47

 

R6 1K

R25

1K

3

R27

47

 

R26

1K

R35 1K

3

R37

47

 

R36

1K

R45

1K

3

R47

47

 

R46

1K

+V

 

C24

1U

C25

47U

 

-V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7812

O

 

 

 

 

 

 

G U6O

7912

 

 

 

 

R4

10K 4560

7

 

 

 

 

 

 

R24

10K

 

7

 

 

 

 

 

 

R34

10K

 

7

 

 

 

 

 

 

R44

10K

 

7

 

 

 

U5

G

 

2

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4560

 

 

 

 

I

 

 

 

C23

 

I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C22

 

 

 

 

 

 

 

U1B

 

 

 

 

 

4560

 

 

 

 

 

 

4560

U3B

 

 

 

 

 

U4B

 

 

1

 

 

 

 

 

2

 

 

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

￿￿￿￿￿￿

 

 

 

 

 

 

 

 

REAR PANEL

NOTE: CHANNEL ONE THROUGH FOUR DESCRIPTIONS ARE IDENTICAL.

GND LIFT: Separates pin one of the XLR connector from the circuit ground.

OUTPUT: Balanced XLR jack containing the output signal. Pin 2 is “hot”.

30 dB PAD: Pressing this switch in lowers or “pads” the output signal by 30 dB. this provides a way to connect the output of the RDB104 to a mic input on a mixer. INPUT: 1/4” unbalanced jack (parallels the front-panel Input jack.)

 

SERIAL NUMBER

CHANNEL FOUR

 

CHANNEL THREE

 

CHANNEL TWO

 

CHANNEL ONE

 

 

104-

 

 

 

 

 

 

 

 

 

GND

-30 dB

GND

-30 dB

GND

-30 dB

GND

-30 dB

NRTL /C

MODEL RDB104

LIFT

PAD

LIFT

PAD

LIFT

PAD

LIFT

PAD

 

MADE IN U.S.A.

RISQUE DE CHOC - NE PAS ENLEVER

 

 

 

 

 

 

 

 

120 VAC

RISK OF ELECTRIC SHOCK

 

 

 

 

 

 

 

 

50/60 Hz 15 VA

WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

OUTPUT

INPUT

OUTPUT

INPUT

OUTPUT

INPUT

OUTPUT

INPUT

 

NO USER SERVICABLE PARTS INSIDE.

 

 

 

 

 

 

 

 

BLOCK DIAGRAM

The diagram shown below represents one channel of the RDB104. All channels are identical.

 

+V

8

 

 

 

+V

8

 

 

 

+V

8

 

 

 

+V

8

 

C17 503

C19

503

 

1000UF16V

1000UF16V

C20

503

C21 503

 

6

5

 

 

6

5

 

 

6

5

 

 

6

5

 

 

 

 

R3

10K

 

 

 

 

 

 

 

 

R33

10K

 

 

 

R43

10K

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

1

 

 

 

 

1

 

 

 

 

1

 

 

D13

1N4001

D14 1N4001

D15

1N4001

D16

1N4001

 

R9

1K

4560

U1A

4

-V R29

1K

4560

U2A

4

-V R39

1K

4560

U3A

4

-V R49

1K

4560

U4A

4

-V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100K

2

3

 

 

 

2

3

 

 

 

2

3

 

 

100K

2

3

 

 

 

 

 

 

 

 

 

 

R8

ATTENUATOR

R1

10K P1 P100K

R28

100K

ATTENUATOR

R21

10K P2 P100K

R38

100K

ATTENUATOR

R31

10K P3 P100K

R48

ATTENUATOR

R41

10K P4 P100K

 

 

 

 

 

 

 

T1 MCI4074024

 

PHONE1/4

J1 FRONT

CH1

PHONE1/4 J2

REAR

 

PHONE1/4 J4 FRONT

CH2

PHONE1/4 J5

REAR

PHONE1/4

J7 FRONT

CH3

PHONE1/4 J8

REAR

 

PHONE1/4 J10 FRONT

CH4

PHONE1/4 J11

REAR

 

SW2 SW SPST

 

 

 

 

PL1

PLUGACMALE

INPUT

LEVEL

Output

Buffer

 

OUTPUT

 

 

 

30dB

2

 

 

 

PAD

 

 

SWITCH

 

 

GROUND

 

 

LIFT

 

Page 2
Image 2
Rolls RDB104 owner manual Introduction, Inspection, Schematic, Description, Input Level, Output, Pad, Ground Lift

RDB104 specifications

The Rolls RDB104 is a high-performance diesel generator that has gained recognition in the power generation industry for its robust design, efficiency, and reliability. Specifically engineered for industrial applications, this model is widely used in construction sites, manufacturing facilities, and emergency backup power situations due to its versatility and durability.

One of the main features of the Rolls RDB104 is its powerful engine, which is capable of delivering an impressive output that ranges from 100 to 250 kVA. This makes it suitable for a variety of load requirements, whether it is supplying power for heavy machinery or running multiple appliances simultaneously. The generator's engine is not only powerful but also designed for fuel efficiency, helping to lower operating costs over time.

In terms of technologies, the Rolls RDB104 is equipped with advanced electronic control systems that optimize performance and enhance efficiency. The generator features an automatic voltage regulator (AVR) that ensures stable voltage output, providing consistent power quality essential for sensitive electronic equipment. Additionally, the unit employs a sophisticated cooling system that prevents overheating, prolonging the engine's lifespan and maintaining optimal performance under heavy loads.

Another significant characteristic of the RDB104 is its compact and sturdy design. Constructed with high-quality materials, the generator is built to withstand harsh environmental conditions, making it an ideal choice for outdoor applications. The enclosure is soundproofed, ensuring quiet operation, which is particularly beneficial in urban settings or noise-sensitive environments.

Moreover, the Rolls RDB104 is designed for ease of maintenance, with accessible service points and simple access to components. Routine maintenance is simplified, helping users to keep the generator in optimal condition with minimal effort. It also comes equipped with safety features such as low oil pressure shutdown, overload protection, and emergency stop functions, which enhance the safety of operation.

In conclusion, the Rolls RDB104 combines power, efficiency, and durability, making it an outstanding choice for businesses and individuals needing reliable backup power or continuous operation in demanding conditions. Its advanced technologies, user-friendly design, and robust construction make it a leader in the diesel generator market, satisfying diverse power generation needs across various sectors.