Marantz MAR775 Switching Power Supply PCB. P816, Q810 Q801 Q891 Q871 Q825 Q861 Q862 Q851 Q892

Page 38

SWITCHING POWER SUPPLY PCB. (P816)

L831

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

D802

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S1WB

 

 

 

 

D806

 

L825

 

 

 

 

 

 

 

 

 

 

 

C819

C825

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G815

 

 

C820

 

R819

 

 

0.1

470pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250V

/400V

 

 

 

 

 

 

 

 

 

Q825

 

C827

J801

0.01

 

 

0.22

 

330k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250V

(UL/CSA,MITI)

 

 

 

C826

 

 

 

 

 

 

 

 

 

2SK2943

 

470pF

 

 

 

 

 

 

1M(CB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/1kV

 

 

 

F820

 

 

 

 

 

 

 

470pF

 

 

 

 

 

C821

 

D807

 

 

 

 

 

 

 

 

 

 

 

 

L820

 

/400V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D803

 

 

120

 

 

 

R825

 

 

 

S815

J820

J821

 

 

 

 

 

 

 

 

 

 

/400V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

 

2A_125V(F&U)

 

 

 

 

 

 

 

 

 

D804

 

 

 

 

 

 

 

 

 

 

 

2A_250V(N&K)

 

 

 

 

 

 

 

C828

 

 

 

 

 

 

 

 

 

R826

R827

R828

 

 

 

 

 

 

 

 

 

 

 

470pF

R823

 

 

 

 

 

 

 

 

J828

 

 

 

 

 

 

 

 

 

 

/400V

 

 

 

 

 

 

 

 

1

1.5

1.5

 

 

 

 

 

 

 

 

 

 

18k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R832

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18k

 

R829

 

 

 

 

D832

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1W

 

10k

 

 

 

 

 

AG01

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L832

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

C829

4.7/50V

D829

24V

 

 

 

C833

100/25V

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

R811

22

 

 

 

 

 

 

 

 

R801

 

 

Q810

R810

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

82k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MC44603P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C801

 

 

 

VREF IREF

 

 

 

 

 

 

 

C811

0.1

 

 

 

 

 

 

82pF

 

DEMAGINETIZATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NP0

8

DETECT

DEMAGNETISATION

 

REFERENCE

SUUPLY

 

UVL01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MANAGEMENT

 

BLOCK

INITIZLIZATION

BLOCK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

SYNC

IREF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C802

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

820pF

 

 

 

OSCILLATOR

 

 

 

 

 

 

 

 

 

 

2

R812

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

R802

RF

 

 

 

 

 

LATCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

R813

 

 

 

 

 

 

22k

STANDBY

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUFFER

 

 

15

 

 

 

 

 

 

R803

 

RP

 

 

 

 

 

=1

Q

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

STANDBY

 

 

 

 

 

 

 

 

 

 

 

 

Q801

 

 

 

4.7k

STANDBY

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

(REDUCED FREQUENCY)

 

 

 

 

 

 

 

 

 

C813

 

 

PC123F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2200pF

 

 

 

 

 

 

C803

 

 

 

 

VSB

 

 

THERMAL

 

 

 

VREF

VOC

 

 

 

 

 

 

 

 

 

470p

 

2.5V

 

 

 

SHUTDOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

ERROR

OUT

 

 

 

 

 

OVER

 

 

OVER

 

 

D835

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

D836

 

 

 

 

 

 

 

 

AMP

 

 

 

IREF

 

 

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE

 

PROTECT

 

 

 

 

 

 

 

R805

R804

C804

 

 

 

 

 

 

 

 

 

MANAGEMENT

 

 

 

 

 

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

R814

D814

 

 

 

 

15k

15k

4700pF

FEEDBACK

 

 

 

DMAX&

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UVL01

 

 

 

 

 

 

 

1.8k

AG01

 

 

 

 

 

 

 

E/A OUT

 

 

 

 

SOFT-START

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R815

 

 

 

 

 

 

 

13

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.8k

 

 

 

 

 

 

 

 

 

FOLDBACK

 

 

 

 

VREF

 

 

 

 

 

 

R816

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

180

C814

 

 

 

 

 

 

 

 

 

 

FOLDBACK

CURRENT

SOFTSTART

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

 

 

 

 

INPUT

 

SENSEINPUT

&DMAX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

7

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R806

 

 

 

R808

R807

C809

 

R809

C810

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

18k

180k

 

330

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1500p

 

 

2.2/50V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P816

 

 

 

 

 

 

 

 

 

Q851

 

 

 

 

 

 

 

 

 

 

 

 

LM317

 

 

L854

 

 

 

L831

 

 

 

 

 

 

 

 

 

10µH

 

 

 

D851

 

 

L853

 

 

 

 

 

 

 

 

 

 

 

4.7µH

 

 

 

 

 

 

C892

Q892

 

AG01

 

 

 

 

R853

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100/25

PC123F

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

R852

C854

C855

 

 

 

14

C851

 

 

 

 

220

0.1

 

 

 

 

 

 

 

 

100/6.3V

 

 

 

 

 

0.1

C852

 

L851

 

 

R851

 

 

 

 

R894

 

 

 

 

 

 

 

 

 

 

 

 

 

330

 

 

 

560

 

 

 

 

1k

 

 

 

4.7µH

 

 

 

 

 

 

 

 

 

/16V

 

 

 

 

L852

 

 

J851

 

13

 

 

 

 

 

 

 

 

 

 

 

+4.1V

 

 

 

 

 

 

 

L856

C860

C859

 

 

 

 

 

 

 

 

 

 

 

6.8µH

(OPTION)

 

 

 

-34V

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

D856

C856

C857

 

 

 

 

 

 

 

 

 

GND

 

2200

 

 

 

 

 

 

 

 

 

 

RK46

 

/10V

 

 

 

 

 

 

 

 

 

+5V

 

11

 

 

 

 

 

R861

 

 

 

 

 

+5V

 

 

 

 

 

 

 

10k

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

L862

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

10µH

 

 

 

10

 

D861

 

 

 

 

R862

 

 

 

 

GND

 

L861

 

 

 

 

 

C864

 

 

+12V

 

1µH

AG01

 

 

Q861

1k

D862

 

 

 

 

 

 

 

 

 

 

220/50V

 

-8V

 

 

 

 

 

 

2SC

R863

 

 

 

 

 

9

 

 

C862

 

 

Q862

 

 

 

 

 

 

 

 

C861

 

 

2SA

10k

R865

 

 

 

 

 

 

 

10/50V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

 

 

 

 

 

 

 

 

 

 

+12V

 

 

 

 

 

 

 

 

 

 

 

R864

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C869

 

 

D866

 

 

 

 

 

 

10k

L867

 

 

 

 

 

 

 

 

 

 

 

D868

220

 

 

RU4YX

 

 

 

 

 

 

2.2µH

 

/16V

 

 

 

C866

L866

C867

 

 

 

Q871

 

R866

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

C868

 

 

 

1k

 

 

 

 

 

0.1

 

1000

 

 

7908

 

 

 

 

 

D871

 

/16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AG01

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

L872

 

 

 

C877

C875

 

 

 

 

 

C871

L871

 

 

 

 

 

 

 

 

 

C872

 

10µH

 

 

 

0.1

100

 

 

 

 

 

0.1

 

C873

R881

R882

 

 

/16V

 

 

 

 

 

 

220

 

 

 

 

 

 

 

 

 

 

/16V

 

220

3.3k

100

 

 

 

 

 

 

 

 

 

 

 

/16V

 

 

 

L873

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C876

 

 

 

 

C882

R883

 

 

 

 

 

 

 

 

 

 

 

0.022

1.8k

 

 

 

 

 

 

 

 

 

 

R887

D881

 

 

 

 

 

C881

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

100

TL431

 

R884

 

 

 

 

 

 

 

 

 

 

 

 

 

/25V

 

 

 

 

 

 

 

 

 

2.21k

 

 

 

 

 

 

 

 

 

 

 

 

 

1%

 

 

 

 

 

 

 

 

 

J891

 

 

 

R885

 

 

 

 

 

 

 

 

 

 

 

 

 

681

 

 

 

 

 

 

 

 

 

 

 

 

 

1%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C898

 

 

 

R886

 

 

 

 

 

 

 

 

 

0.1

+12V

R892

22k R893

10k

Q891

R891

2SC2878

22k

C891

100/25

Q810

Q801

Q891

 

 

Q871

 

 

Q825

 

Q861

Q862

Q851

Q892

J828

 

 

 

 

WA386K106-0 P816

J801 G815 250V

F820

J820

S815 C820

 

T2A L

 

J821

 

 

R806

D835

R805

 

R810

R812

U102

C811

Q801

J881

C881

R882

C892

U051

C876

U005

U006

C898

 

 

 

 

 

 

R891

R892

R893

L873

J891

U052

 

U007

J852

D836

R803

C803

 

R832

 

C828

R823

 

D804

D829

 

 

D802

R802

 

 

C804

MC44603

Q810

R804

C810

C802

 

 

C829

C801

 

 

 

 

 

 

R813

R807

 

R816

 

 

 

 

 

 

R814

R815

C809

R809

R801

C813

U001

R808

C814

D814

U050

R827

C882

R886

 

R885

 

 

 

R881

D881

 

 

 

 

 

R884

 

 

 

 

 

 

 

U002

 

 

R883

 

 

 

D832

 

 

D871

 

 

 

 

 

 

L831

 

C866

 

 

 

 

 

C891

C875

 

Q871

 

Q891

 

 

 

 

C869

 

 

 

C877

 

 

C872

U202

 

D868 C868

R887

L872

 

C867

 

 

U003

 

 

R866

 

U004

 

 

 

 

 

 

 

D866

Q862

C871

D862

C873

 

 

U104

L867

 

 

-8V

U053

J851

12V

GND

 

 

U105

 

 

GND

C860

GND

 

R819

C825

C826

D803

C819

L820

L820

C821

 

+

R811

R829

-

 

U200

U201

 

020L

 

D807

D806

 

U100

U101

 

 

R826

 

 

 

C833

 

 

 

 

L832

 

 

 

 

 

 

 

 

R828

 

 

 

 

 

 

R825

 

 

 

 

 

 

 

 

 

U103

Q825

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C827

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L825

L831

L861

D861

Q861

 

R863

R865

R864

 

C861

C862

R862

C859

 

R861

 

 

 

 

 

 

 

 

U054

C856

 

 

 

U010

L856

L862

 

 

 

D856

 

C864

 

C857

 

 

 

 

 

 

L851

C851

C852

R851

 

Q851

 

D851

R852

 

 

 

 

R853

 

 

 

 

 

L853

 

 

 

5V

 

5V

 

GND

 

FR

 

-34V

 

FR

C854

C855

U008

R894

L854 Q892

39

40

Image 38
Contents Service Manual Brazil USAEurope / Trading AmericasPlayback & Recording and Disc CDR loader CDR main module CDL4009 or MAR770 This PCB contains the headphone socketTechnical Specifications GeneralESD IIIService Hints Service Tools Status of player Dealer modeDealer diagnostics Electrical service diagnostics Software versions, test for defective componentsMechanical service diagnostics DC-erase service mode Erasement of complete CD-RWFaultfinding trees CDR-ModuleCD-DA Disc Loaded CD R Display no Wiring Power Supply Voltages Electrical Service DiagnosticsCD-RW Disc Loaded CD RWCD Module Check Flex Connection from CDR Main Board Power Supply+3V3 AT IC7000 Pins 5,17,21,57, Check Safety Resistors OPEN/CLOSECD Module Playback General description Display BoardDescription of display board Display controller TMP87C874FTest instructions Clock signalControl signals Supply voltagesRotary operation IR receiver remote controlEasy jog knob Push button operationControl Signals Display board troubleshooting guideClock Signal FTD Drive LinesDescription of controller MC44603 Power Supply Unit P816Description of P816 Pin connectionsVCC Pin function descriptionPin Name Start up sequence of P816 Block diagram of MC44603Operating description of MC44603 Regulation of P816Ch1 Drain voltage Ch2 Drain current Ch3 Gate voltage Circuit description of P816 Troubleshooting P816 CD Main BoardMeasurements Block DiagramDescription Pin Configuration Test points on driver Input conditions conn 1006 pin Outputs connUcoil Vcoil Wcoil Hallu Hallv HallwDC Settings HF PathTransfer Characteristics Hfdet SettingIIS CLK11 Nmute DAC Amplifier Wiring Diagram Pink12V CD WY01at conn.F934of WY02 WY03 WY04 CDR main board10 D5V WC01at conn.1209 WC02at conn.1400 W801at conn.1500Block Diagram CDR Main BoardSchematic Diagram and Parts Location PY46Switching Power Supply PCB. P816 Q810 Q801 Q891 Q871 Q825 Q861 Q862 Q851 Q892QN54 QN53 QN58 QN57 Q311 Q681 QF52 QF51 QN52 QN51 QG56 QN55 QY01 QY02 QY04Exploded View and Parts List Packing Not Standard Spear PartsElectroly CAP Electrical Parts ListCeramic CAP P816-SEMICONDUCTORS P816-POWER Circuit Board P816-CAPACITORSP816-RESISTORS P816-MISCELLANEOUSPP16-SEMICONDUCTORS PP16-REAR Panel Circuit Board PP16-CAPACITORSPP16-RESISTOR PP16-MISCELLANEOUSPY36-ROTARY Encoder Circuit Board
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MAR770, MAR775, DR-6000 specifications

The Marantz DR-6050 and DR-6000 are revered components in the world of high-fidelity audio systems, reflecting the brand's long-standing commitment to quality and performance. These models have gained popularity among audiophiles for their comprehensive features and advanced technologies, which cater to both casual listeners and serious music enthusiasts.

The Marantz DR-6050 is a CD recorder and player that stands out with its dual functionality. It allows users to enjoy CDs while also having the capability to record directly from various sources, including analog inputs and digital connections. This functionality is essential for those who wish to preserve their vinyl records, cassettes, or other audio formats onto CD. The machine supports CD-R and CD-RW media, providing flexibility for repeated use and recording.

One of the standout technologies in the DR-6050 is its high-quality Digital-to-Analog Converter (DAC), which significantly enhances sound performance by converting digital signals to analog with incredible accuracy. This contributes to the unit's ability to reproduce audio with rich detail and clarity. Additionally, the recorder is equipped with a Microprocessor that ensures precise recording levels and optimizes the quality of the output.

On the other hand, the Marantz DR-6000 offers similar capabilities but with an emphasis on simplicity and ease of use. Designed for users who appreciate an intuitive interface, it features straightforward controls and an ergonomic design. The DR-6000 supports multiple recording formats, including standard audio CDs, making it versatile for various playback systems.

Both models are built with high-grade components that promise longevity and reliability. They feature robust construction, ensuring minimal vibration and interference to enhance playback quality. Integrated analog and digital inputs allow for diverse connectivity options, which is crucial for users with elaborate audio setups.

In terms of audio performance, both the DR-6050 and DR-6000 exhibit impressive frequency response and low distortion levels, characteristics that are vital for a satisfying listening experience. The devices also include features like playback speed control and disc finalization options, providing the user with complete control over their audio sessions.

The Marantz DR-6050 and DR-6000 are ultimate companions for those who appreciate high-quality sound and need versatile recording solutions. With their blend of advanced technologies, clear audio output, and user-friendly designs, they remain solid choices for anyone looking to enhance their audio collection and experience.