Marantz MAR775, MAR770, DR-6000 service manual Cd R

Page 14

CD-R DISC LOADED

DISCNO DETECTION &

READING?

YES

CHECK:

WIRING

POWER SUPPLY VOLTAGES

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

DISPLAY: NO

“CD R” &

OPC INFO?

YES

CD-R DISC PARTIALLY RECORDED OR EMPTY

START MANUAL

RECORDING FROM

ANALOG SOURCE

DISPLAY: NO “CD” &

T.O.C. INFO?

YES

FINALISED CD-R DISC

LOADED

SEE CD-DA DISC

FAULT FINDING

CHECK:

DISC: DIRT, SCRATCHES, DAMAGED...

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

LEVEL NO ADJUSTABLE?

YES

START RECORDING

FROM DIGITAL

SOURCE

CHECK:

AUDIO CONNECTIONS & CABLES

DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD) EASY JOG KNOB

I2C COMMUNICATION

ELECTRICAL SERVICE DIAGNOSTICS: KEYBOARD TEST

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

DIGITAL IN? OPTICAL IN?

YES

NO

CHECK:

AUDIO CONNECTIONS & CABLES I/O BOARD

FLEX CONNECTION

+5V (pin 8 conn. JJ01)

Q311, OPTICAL RECEIVER J301

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

RECORDING NO SUCCESSFUL?

YES

SET OK

CHECK:

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

Figure 7-3

CL 96532076_018.eps 290799

12

Image 14

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 components Mechanical 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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