Marantz MAR770, DR-6000, MAR775 service manual Playback & Recording and Disc

1. Servicing the DR6050

1.1 INTRODUCTION:

The DR6050 is the consumer version of a CD recorder, this means that the SCMS (Serial Copy Management System) is included. The DR6050 can only record on the Audio CDRs (Consumer Use).

The DR6050 is suitable for recording and playback of CD-RW discs (CD-Re Writable disc).

Playback & Recording and Disc

Disc			CDR				CD-RW
	CD	Consumer Disc		Professional Disc		Consumer Disc		Professional Disc		SCMS
		Finalized	non		non		non		non
Player/Recorder			Finalized	Finalized	Finalized Finalized Finalized Finalized Finalized
Audio CD Player	P	P	no	P	no	no	no	no	no	-
Current products Ex:CD-17
Audio CD Player	P	P	no	P	no	P	no	P	no	-
CD-RW playback Ex:CD-17MK II
CD-RW Recorder	P	P	P/R	P	P/R	P/R	P/R	P/R	P/R	no
For Professional Ex:CDR630/640
CD-RW Recorder	P	P	P/R	P	P	P/R	P/R	P	P	YES
For Consumer Ex:DR6050

Consumer	: For Digital Audio
Professional	: For General use (Including PC)
P	: Playback
R	: Recording

1.2 OPENING THE PRODUCT :

The product can be opened by removing the top cover (6 screws). Once the product is opened one can have access to the several PCB's and the main module.

Power Supply

PCB

Terminal

PCB

CDR Module

MAR775

CD

Loder

VAL1250

DISPLAY

PCB

PHONE BOARD

Below the several PCB's and it function and service policy will be discussed:

1