Marantz MAR770, DR-6000, MAR775 service manual Faultfinding trees, CDR-Module

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7.Faultfinding trees

7.1CDR-Module

NO DISC LOADED

SWITCH ON POWER

NO

DISPLAY?

YES

CHECK:

MAINS, MAINS CABLE

POWER SUPPLY (SEE FAULT FINDING GUIDE PSU) WIRING

ON/OFF SWITCH FUSES VOLTAGES

DISPLAY (SEE FAULT FINDING GUIDE DISPLAY BOARD) WIRING

SUPPLY VOLTAGES

CLOCK SIGNAL 8MHz

CONTROL SIGNALS KEYBOARD STANDBY LED

ELECTRICAL SERVICE DIAGNOSTICS:

DISPLAY TEST, KEYBOARD TEST

DISPLAY:

NO

CHECK:

WIRING

"INSERT DISC"

YES

PRESS

<OPEN/CLOSE>

NO

TRAY?

YES

INSERT DISC

PRESS <OPEN/CLOSE>

NO

CD-DA DISC

LOADED?

YES

POWER SUPPLY VOLTAGES

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

CHECK:

DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD) WIRING

SUPPLY VOLTAGES

CLOCK SIGNAL 8MHz

CONTROL SIGNALS KEYBOARD

ELECTRICAL SERVICE DIAGNOSTICS: DISPLAY TEST, KEYBOARD TEST

MECHANICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF ERROR OCCURS

 

 

 

NO

CD-R DISC

 

CD-RW DISC

LOADED?

 

LOADED?

YES

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

SEE CD-DA DISC FAULT FINDING

SEE CD-R DISC

FAULT FINDING

Figure 7-1

SEE CD-RW DISC FAULT FINDING

CL 96532076_016.eps 290799

10

Image 12
Contents Service Manual USA Europe / TradingBrazil AmericasPlayback & Recording and Disc CDR loader CDR main module CDL4009 or MAR770 This PCB contains the headphone socketTechnical Specifications GeneralESD IIIService Hints Service Tools Dealer mode Dealer diagnosticsStatus of player 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 Wiring Power Supply Voltages Electrical Service Diagnostics CD-RW Disc LoadedDisplay no CD RWCheck Flex Connection from CDR Main Board Power Supply +3V3 AT IC7000 Pins 5,17,21,57, Check Safety ResistorsCD Module OPEN/CLOSECD Module Playback Display Board Description of display boardGeneral description Display controller TMP87C874FClock signal Control signalsTest instructions Supply voltagesIR receiver remote control Easy jog knobRotary operation Push button operationDisplay board troubleshooting guide Clock SignalControl Signals FTD Drive LinesPower Supply Unit P816 Description of P816Description of controller MC44603 Pin connectionsPin function description Pin NameVCC Block diagram of MC44603 Operating description of MC44603Start up sequence of P816 Regulation of P816Ch1 Drain voltage Ch2 Drain current Ch3 Gate voltage Circuit description of P816 Troubleshooting P816 CD Main BoardBlock Diagram DescriptionMeasurements Pin Configuration Input conditions conn 1006 pin Outputs conn Ucoil Vcoil WcoilTest points on driver Hallu Hallv HallwDC Settings HF PathTransfer Characteristics Hfdet SettingIIS CLK11 Nmute DAC Amplifier Wiring Diagram PinkWY01at conn.F934of WY02 WY03 WY04 CDR main board 10 D5V WC01at conn.1209 WC02at conn.140012V CD 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 PartsElectrical Parts List Ceramic CAPElectroly CAP P816-POWER Circuit Board P816-CAPACITORS P816-RESISTORSP816-SEMICONDUCTORS P816-MISCELLANEOUSPP16-REAR Panel Circuit Board PP16-CAPACITORS PP16-RESISTORPP16-SEMICONDUCTORS 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.