Marantz DR-6000 CD Module, Open/Close, Check Flex Connection from CDR Main Board Power Supply

Page 16

7.2CD Module

CD MODULE

NO DISC

POWER ON

DISC NO

DETECTION

STARTS?

YES

NO

DISPLAY?

YES

PRESS

<OPEN/CLOSE>

CHECK FLEX CONNECTION FROM CDR MAIN BOARD

POWER SUPPLY

+5V, +12V AT TESTPOINTS 28 AND 27 +5V AT CONN. 1000 PINS 1 AND 3 +5V AT IC7005 PIN 14

+3V3 AT IC7000 PINS 5,17,21,57, CHECK SAFETY RESISTORS

+5V AT IC7020 PIN 25

+10V AT IC7020 PINS 26, 27, 28

+12V AT IC7021 PIN 5, CHECK SAFETY RESISTOR R3131

+12V AT IC7022 PIN 5, CHECK SAFETY RESISTOR R3154

+5V AT IC7025 PIN 16

+5V AT IC7202 PIN 38, CHECK SAFETY RESISTOR R3308

+3V3 AT IC7309 PINS 4 AND 13, CHECK SAFETY RESISTORS R3215, R3216 +12V AT IC7120 PIN 8, CHECK SAFETY RESISTOR R3263

CLOCKS

8.4672MHz AT TESTPOINT 7 12MHz AT TESTPOINTS 29 AND 30 11.2896 AT TESTPOINT 10 2.1168MHz AT TESPOINT 20 44.1kHz AT TESTPOINT 21

DISPLAY

SEE FAULTFINDING GUIDE DISPLAY BOARD

MICROPROCESSOR 7202

NO

TRAY?

YES

LOAD DISC

(CD-DA OR PARTIALLY RECORDED CD-R/CD-RW)

PRESS <OPEN/CLOSE>

NO

TOC?

YES

SEE NEXT PAGE:

PLAYBACK

DIAGNOSTIC SOFTWARE : MECHANICAL SERVICE DIAGNOSTICS CD LOADER : TRAY TEST

CHECK TRAY MOTOR VOLTAGES TRAY+, TRAY-

MICROPROCESSOR 7202

CHECK TRAY MOTOR DRIVER IC7021

REPLACE OR REPAIR CD LOADER ASSY:

TRAY MOTOR ASSY 02, BELT 11

DIAGNOSTIC SOFTWARE : MECHANICAL SERVICE DIAGNOSTICS CD LOADER : FOCUS TEST & SLEDGE TEST

CHECK WIRING TO CDM

CHECK POWER DRIVERS 7021, 7022, 7020

CHECK VOLTAGES ON POWER DRIVERS (SEE CIRCUIT DIAGRAMS)

TESTPOINTS 4, 5, 6 : PULSE DENSITY MODULATED SIGNALS

HF PATH

TESTPOINTS 1, 2, 3, 9 : EYEPATTERN

CHECK RW AT TESTPOINT 8 : HIGH FOR CDDA AND CDR DISC, LOW FOR CDRW DISC. EYEPATTERN OF CDRW DISC WILL BE AMPLIFIED ( »X 2.5). EYEPATTERN OF CDDA DISC WILL BE ATTENUATED(» X 0.8)

CHECK S1,S2 AT TESTPOINTS 25 AND 26 (SEE CIRCUIT DIAGRAMS) TESTPOINTS 20, 21, 22: I2S DATA, WCLK, SCLK

REPLACE OR REPAIR CD LOADER ASSY (CDM MECHANISM)

CL 96532086_030.eps 080999

Figure 7-5

14

Image 16
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 diagnostics Dealer modeStatus 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 Name Pin function descriptionVCC 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 BoardDescription Block DiagramMeasurements 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 PartsCeramic CAP Electrical Parts ListElectroly 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.