Marantz MAR775, MAR770, DR-6000 service manual Dealer mode, Dealer diagnostics, Status of player

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6.Diangostic Software

6.1Dealer mode

The purpose of the dealer mode is to prevent people taking out the CD inside the player at exhibitions, showrooms etc.. This mode disables the open/close function of the player.

The dealer mode can be switched on and off pressing keys [OPEN/CLOSE] and [STOP] of the CDR player simultaneously while switching on the unit. The dealer mode is stored in the flash memory and can only be changed by executing the above actions.

6.2Dealer diagnostics

DEALER DIAGNOSTICS

(status of player)

If power ON,

switch power OFF

Press <REWIND> + <FFWD> simultaneously and switch

ON unit

Display blinks

6.2.2Requirements to perform the test

Working keyboard to start up the test.

Working local display to check the output messages.

“BUSY”

during test

NO

Set OK?

YES

Set displays

PASSED

Set displays

“ERROR”

To end test, switch OFF unit

CL96532086-024.eps 090999

Figure 6-1

6.2.1Description

The intention of the dealer diagnostics is to give an indication of the CDR player status. An inexperienced, even non- technical dealer will/can perform the test. Tests are executed automatically without need for external tools or disassembly of the unit. This test checks the CDR main board using the same tests as the electrical service diagnostics program. Only the result of the test, "PASSED" or "ERROR", will be shown on the display. Pressing keys [F FWD] and [REWIND] simultaneously while switching on the unit, starts the test. Switching off the unit ends the test.

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Image 8 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 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 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 connectionsVCC Pin function descriptionPin Name 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 BoardMeasurements Block DiagramDescription 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 PartsElectroly CAP Electrical Parts ListCeramic 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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