Rolls RA62 owner manual Schematic, Introduction, Features, Inspection

SCHEMATIC

POWER

D9

LDSG

Rev: C

1 of 1

RIGHTIN

PHONE1/4

FRONTIN

J7

VCC

2200UF

R57

4.7K VDD

ROLLSCORPORATION

5143 South Main Street

Salt Lake City, UT 84107

AMPLIFIERRA62

RA62.SCH

Date: 29-Mar-1999Sheet

PHONE1/4

J17

R714 10K

PHONE1/4

J16

R713 10K

R701

10K

3

J15

R716

100K

LEFTIN

PHONE1/4

J10

4560 PHONE1/4

R702

10K

5

R715

C15

D2 C18

1N4001 503

C14

2200UF

HEADPHONE

Size: DocumentNumber: Rb

4560

2

U7A

4

VDD

VCC

8

6

U7B

100K

D1

1N4001

Title

R705

1

PAN

P7

P100K

7

R708

1N4001

1N4001

10K

10K

D3

D4

R706

10K

DPDT

R709

10K

R707

10K

5

6

3

2

5024

R710

10K

SW1B

4

1

SW1A

DPDT

SW?

SPSTACM

PC1/4 1 2

6

3

2

T1

R711

47K

VCC

8

4560

U8B

5

MONO/STEREO

4560

U8A

4

VDD

R712

47K

MCI407

3

2

ACPLUG

1

AC1

PC1/4

J12

C13

10U

7

PC1/4

J13

C16

10U

1

J14

R407

10K

R408

10K

R507

10K

P508

10K

R607

10K

P100KX2

P100KX2

R608

10K

3

P4A

P100KX2

P100KX2

P4B

6

3

P5A

P100KX2

P100KX2

P5B

6

2

3

P6A

P6B 6

5

2

5

2

5

C7

120PF

1

4

C8

120PF

C9

120PF

1

4

C10

120PF

C11

120PF

5 1

3 4

C12

120PF

2

3

2

6

2

6

5

3

6

5

VCC

8

U4B

4560

U4A

4

VDD

VCC

8

4560

U5B

4560

U5A

4

VDD

VCC

8

4560

U6B

4560

U6A

4

VDD

4560

7

1

R603

R404

30

7

2N2907

MPSA06

1

R403

30

7

1

R503

R604

30

Q22 2N2907

MPSA06

30

2N2907

Q14

VDD

R402 Q15

R504

Q18

2N2907

VCC

MPSA06

30

2N2907

VCC

Q23

Q24

VCC

Q13

MPSA06

R401

51

1/4

VCC

51

Q16

2N2907

VDD

VCC

Q17

MPSA06

30

R501

51

PC1/4 J5 VDD

PHONE1/4 Q19

R502

51

Q20

VDD

VCC

Q21

MPSA06

R601

51

J6 VDD

PHONE1/4

R602

51

CHANNEL6

VDD

J4

PC1/4

J8

PHONE

CHANNEL4

J9

CHANNEL5

PC1/4

J11

R107

10K

P100KX2

P100KX2

R108

10K

R207

10K

P100KX2

P100KX2

R208

10K

R307

10K

P100KX2

P100KX2

R308

10K

3

P1A

P1B

6

3

P2A

P2B

6

3

P3A

P3B

6

2

5

2

5

2

5

C1

120PF

1

4

3

2

C2

120PF

C3

120PF

1

4

3

2

C4

120PF

C5

120PF

1

4

3

2

C6

120PF

6

5

6

5

6

5

VCC

8

4560

U1B

4560

U1A

4

VDD

VCC

8

4560

U2B

4560

U2A

4

VDD

VCC

8

4560

U3B

4560

U3A

4

VDD

7

1

7

2N2907

1

7

1

R104

30

Q2

2N2907

Q3

MPSA06

R103

30

Q4

2N2907

R204

30

Q6

Q7 MPSA06

R203

30

Q8

2N2907

R304

30

Q10

2N2907

Q11

MPSA06

R303

30

Q12

2N2907

VCC

Q1 MPSA06

VDD

VCC

VDD

VCC

Q5

MPSA06

VDD

VCC

VDD

VCC

Q9

MPSA06

VDD

VCC

VDD

5

R101

51

J1

PHONE1/4

R102

51

CHANNEL1

R201

51

J2

PHONE1/4

R202

51

CHANNEL2

R301

51

J3

PHONE1/4

R302

51

CHANNEL3

INTRODUCTION

Thank you for your purchase of the Rolls RA62 Stereo Headphone Amplifier.The RA62HA is a six-channel headphone amplifier for high quality audio monitoring. It is intended for sound reinforcement, studio, choir, and other applications where high channel to size ratio is desirable. Since the MONO/STEREO switch is after the pan control, it will mix 2 MONO signals and their balance can be adjusted with the Pan control. Up to six individual monitor mixes may be listened to via the rear panel TRS stereo insert jacks. The RA62HA has an FR4 double sided circuit board and painted steel chassis. It has six 1/4" stereo headphone outputs, one 1/ 4" TRS stereo input located on the front panel. Right and Left 1/4" Input jacks, and six 1/4" Insert jacks are located on the rear panel. There are two Auxiliary Inputs (right and left) located on the rear panel. Each channel has a Volume control, panning and balance is controlled via the Pan control located on the front panel, and the unit features a MONO/STEREO switch.

FEATURES

•6 Headphone Outputs with Level Controls

•6 TRS Stereo Insert jacks for separate use of each channel

•Up to 500 mW output per jack - it's loud

•Stereo/Mono Switch - allows mixing 2 mono signals

•Front and rear panel input jacks

•DC to 30 kHz response for accurate sound reproduction

INSPECTION

1. Unpack and inspect the RA62 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.

2