D

C

B

A

1

2

3

4

5

 

6

 

 

 

 

7

 

 

 

8

 

 

 

A85 DISPLAY PCB

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L865C2_2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L865C2_2.0.SCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UDB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Update Box

 

 

 

MICRO

 

 

 

 

 

 

 

 

 

 

(Small)

 

 

 

 

 

 

 

 

 

 

 

 

 

UPDATE_SML

 

 

 

 

 

 

 

FD_1

FD_2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIDUCIAL

FIDUCIAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIX7

FIX2

FIX10

 

FIX4

 

FIX5

 

FIX6

 

 

 

 

 

 

 

FIXING HOLE FIXING HOLE FIXING HOLE FIXING HOLE FIXING HOLE FIXING HOLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

CHASSIS 1

C39

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(BY SK3)

1N0 SM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0V_D

C40

C41

 

C42

 

C43

 

C44

 

 

 

 

 

 

 

1N0 SM

1N0 SM

1N0 SM

1N0 SM

1N0 SM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0V_D

0V_D

 

0V_D

 

0V_D

 

0V_D

 

 

 

 

 

 

 

FIX1

FIX8

FIX9

 

FIX3

 

 

FIX11

 

 

 

 

 

 

 

FIXING HOLE FIXING HOLE FIXING HOLE FIXING HOLE

 

FIXING HOLE

 

 

 

 

 

 

 

C45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1N0 SM

C46

C47

 

 

 

 

 

 

 

 

 

 

 

 

CHASSIS 2

 

 

 

 

C48

 

C49

 

 

 

 

 

 

(BY SK1)

0V_D

1N0 SM

1N0 SM

 

 

 

 

 

 

 

 

 

 

 

1N0 SM

 

1N0 SM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0V_D

0V_D

CHASSIS 3

0V_D

0V_D

 

 

 

 

 

 

 

 

 

 

(BY SK2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCB1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCB

 

 

 

 

 

 

 

 

B

 

 

 

 

 

L865PB_2

 

 

 

 

 

 

 

 

 

 

 

 

DRAWING TITLE

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

MARY AMP DISPLAY PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23425

 

Circuit Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes:

 

 

EDD

 

19/07/2001 IR DUAL FOOTPRINT ADDED

 

2.0

 

 

 

A & R Cambridge Ltd.

 

 

 

 

 

 

 

 

 

ISSUE 1.1

 

 

 

 

 

 

 

 

 

 

 

 

 

Pembroke Avenue

 

00_1103

JBR

29 SEP 2000 SW1 TO SW10 CHANGED

 

1.1

 

 

 

 

 

 

 

 

 

Denny Industrial Centre

 

 

ECO No.

INITIALS

 

DATE

 

 

 

DESCRIPTION OF CHANGE

ISSUE

 

 

 

Waterbeach

 

 

 

 

 

 

 

 

 

Filename

 

Date Printed

 

 

Drawn by:

 

 

 

 

 

 

 

Cambridge CB5 9PB

 

 

 

 

Sheet 1 of 2

DRAWING NO.

L865C1

 

 

 

J:\Completed_Projects\A85 (Mary)\mary display\L865_2\l865_2.0 dbase.ddb - Documents\L8658-2Jan.0.PRJ-2002

 

JBR

 

1

2

3

4

5

 

6

 

 

 

 

7

 

 

 

8

Page 18
Image 18
Arcam service manual A85 Display PCB

A85 specifications

The Arcam P85 and A85 amplifiers are a testament to Arcam's commitment to high-quality audio performance. These components are well-known in the audiophile community for their unique blend of state-of-the-art technology and superior sound quality, catering to discerning listeners who value fidelity and craftsmanship.

The Arcam A85 is a high-performance integrated amplifier that features a robust design and advanced circuitry. It offers a powerful 85 watts per channel output, which is more than sufficient to drive a wide range of speakers with clarity and precision. The A85 incorporates a dual mono design with separate power supplies for the left and right channels, ensuring low crosstalk and high channel separation. This design choice also enhances the amplifier’s dynamic response, allowing it to handle complex musical passages with ease.

One of the standout features of the A85 is its use of high-quality components, including low-noise transistors and capacitors that are specifically chosen to minimize distortion. The amplifier exhibits an impressive signal-to-noise ratio, contributing to a clean audio signal that preserves the nuances of the music.

On the other hand, the Arcam P85 is a powerful, dedicated power amplifier that pairs perfectly with the A85. It utilizes a Class G amplification technology, which provides significant power efficiency. This means that the P85 can deliver peak power output without generating excessive heat, making it an ideal choice for long listening sessions.

The P85 offers 85 watts per channel into 8 ohms but can also deliver 140 watts into 4 ohms, allowing it to drive even the most demanding loudspeakers with authority. Its balanced XLR inputs, alongside standard RCA inputs, ensure compatibility with various audio sources, while the sturdy construction ensures durability and performance.

Both the A85 and P85 feature a simple yet elegant design, characterized by a sleek chassis that minimizes resonances and maximizes aesthetic appeal. They also come equipped with a variety of connection options, including multiple line-level inputs and outputs, making integration into an existing audio system straightforward.

In summary, the Arcam P85 and A85 amplifiers represent a harmonious fusion of innovative technology, impeccable sound quality, and user-friendly design. Their powerful performance, combined with high efficiency and low distortion, makes them a prized possession for any audiophile seeking to enhance their listening experience. Whether used in a stereo setup or as part of a more extensive home theater system, the A85 and P85 deliver exceptional audio performance that stands the test of time.