Marantz MD110 Service Manual

Service

Manual

MD110/F1S / N1S

MD Deck

STANDBY

OPEN

MD110

STANDBY		OPEN
SOURCE	DISPLAY
	REC MODE DUBB.	REC
		MULTI JOG
		PUSH ENTER
	CHARACTER	EDIT

TABLE OF CONTENTS
SECTION	PAGE
1. TECHNICAL SPECIFICATIONS ...........................................................................	1
2. SERVICE MODE ..................................................................................................	2
3. WIRING DIAGRAM ...............................................................................................	9
4. BLOCK DIAGRAM ..............................................................................................	11
5. SCHEMATIC DIAGRAM .....................................................................................	13
6. PARTS LOCATION (Pattern Side) .....................................................................	15
7. IC DATA ..............................................................................................................	21
8. EXPLODED VIEW AND PARTS LIST ................................................................	27
9. ELECTRICAL PARTS LIST ................................................................................	32

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.

MD110

R

MD110

325W855010 MIT

3120 785 22730 First Issue 2001.12

MARANTZ DESIGN AND SERVICE

Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound. Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which it is famous.

Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.

ORDERING PARTS :

Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified. The following information must be supplied to eliminate delays in processing your order :

1.Complete address

2.Complete part numbers and quantities required

3.Description of parts

4.Model number for which part is required

5.Way of shipment

6.Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.

USA

MARANTZ AMERICA, INC. 1100 MAPLEWOOD DRIVE ITASCA, IL. 60143

USA

PHONE : 630 - 741 - 0300 FAX : 630 - 741 - 0301

	EUROPE / TRADING				BRAZIL
	MARANTZ EUROPE B.V.			PHILIPS DA AMAZONIA IND. ELET. ITDA
	P.O.BOX 80002, BUILDING SFF2			CENTRO DE INFORMACOES AO
	5600 JB EINDHOVEN			CEP 04698-970
	THE NETHERLANDS			SAO PAULO, SP, BRAZIL
	PHONE : +31 - 40 - 2732241			PHONE : 0800 - 123123(Discagem Direta Gratuita)
	FAX : +31 - 40 - 2735578			FAX : [phone]

	AMERICAS				AUSTRALIA				CANADA
SUPERSCOPE TECHNOLOGIES, INC.					TECHNICAL AUDIO GROUP PTY, LTD				LENBROOK INDUSTRIES LIMITED
MARANTZ PROFESSIONAL PRODUCTS					558 DARLING STREET,				633 GRANITE COURT,
2640 WHITE OAK CIRCLE, SUITE A					BALMAIN, NSW 2041,				PICKERING, ONTARIO L1W 3K1
AURORA, ILLINOIS 60504 USA					AUSTRALIA				CANADA
PHONE : 630 - 820 - 4800					PHONE : 61 - 2 - 9810 - 5300				PHONE : 905 - 831 - 6333
FAX : 630 - 820 - 8103					FAX : 61 - 2 - 9810 - 5355				FAX : 905 - 831 - 6936

AUSTRALIA

QualiFi Pty Ltd,

24 LIONEL ROAD,

MT. WAVERLEY VIC 3149 AUSTRALIA

PHONE : +61 - (0)3 - 9543 - 1522 FAX : +61 - (0)3 - 9543 - 3677

NEW ZEALAND

WILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958

FAX : +64 - 9 - 8463554

JAPAN Technical

MARANTZ JAPAN, INC.

35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505

PHONE : [phone] FAX : [phone]

THAILAND

MRZ STANDARD CO.,LTD

746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILAND

PHONE : +66 - 2 - 222 9181

FAX : +66 - 2 - 224 6795

TAIWAN

PAIYUING CO., LTD.

6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 - 2 - 25221304

FAX : +886 - 2 - 25630415

SINGAPORE

WO KEE HONG DISTRIBUTION PTE LTD 130 JOO SENG ROAD

#03-02 OLIVINE BUILDING SINGAPORE 368357

PHONE : [phone]

FAX

: [phone]

MALAYSIA

WO KEE HONG ELECTRONICS SDN. BHD. SUITE 8.1, LEVEL 8, MENARA GENESIS, NO. 33, JALAN SULTAN ISMAIL,

50250 KUALA LUMPUR, MALAYSIA PHONE : +60 3 - 2457677

FAX : +60 3 - 2458180

KOREA

MK ENTERPRISES LTD.

ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOUL KOREA

PHONE : +822 - 3232 - 155

FAX : +822 - 3232 - 154

SHOCK, FIRE HAZARD SERVICE TEST :

CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and controls and chassis bottom.

Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verified before it is return to the user/customer.

Ref. UL Standard No. 1492.

In case of difficulties, do not hesitate to contact the Technical

Department at above mentioned address.

010620MIT

1. TECHNICAL SPECIFICATIONS
MAIN UNIT (MD110)
Type ...........................................................................................................................	MiniDisc Digital Audio System
Laser .........................................................................................................................................	Semiconductor laser
Recording method ...............................................................................	Magnetic field modulation overwrite method
RPMs .........................................................................................................	Approximately 400rpm to 900rpm (CLV)
Sampling frequency .....................................................................................................................................	44.1 kHz
Frequency characteristics ........................................................................................................	20 to 20 kHz (± 1 dB)
S/N ..................................................................................................................................................	85 dB or greater
Total Harmonic Distortion .................................................................................................................	0.005 % or less
Wow and Flutter ............................................................................................................	Less than measurable limits
Line output level ..........................................................................................................................................	2.0 Vrms
Analog Input ...........................................................................................................................................	250 mVrms
GENERAL
Power supply .........................................................................................................	AC 100 V 50 / 60 Hz (F version)
	AC 230 V 50 Hz (N version)
Power Consumption <Electric Appliance Control Act> ......................................................................................	16 W
Maximum external dimensions (W x H x D) .............................................................................	210 x 71.5 x 310 mm
Weight ..............................................................................................................................................................	3.3 kg
ACCESSORIES
Remote Control Transmitter (RC110DRMD/N1S, RC110DRMDF/F1S)	.................................................................. 1
External dimensions (W x H x D) ........................................................................................	50.5 x 154.5 x 25 mm
Weight .............................................................................................................................................................	60 g
AA type batteries .....................................................................................................................................................	2
Stereo audio cable ............................................................................................................................................	1 pair
Coaxial cable ...........................................................................................................................................................	1
Remote control cable ...............................................................................................................................................	1
The specifications and external appearance are subject to change without notice.
Some portions of the illustrations that appear in this manual may differ slightly from the actual product.
This product is licensed under U.S. and foreign patents of Dolby Laboratories.

1

2. SERVICE MODE

Service Mode

1.While Mains cord is disconnected, press DISPLAY Button on the unit and plug in the Mains cord.

2.Version number of the front micom software is displayed.

3.Turn JOG dial to either direction then Display segment test begins.

4.First all the segments will light and then a segment turns off one by one.

5.Disconnect Mains cord to quit service mode.

Emargency Eject

1.Remove 5 screws on the top cover and remove the top cover.

2.Remove 4 screws on the bottom. (Pointed with the arrows in the picture above.)

3.Disconnect the flexible wire.

4.Remove the MD mechanism component from the unit and remove the 4 screws on the both sides. (Pointed with the arrows in the picture above.)

5.Slide the lever pointed with the arrow to the direction of the arrow.

6.Slide the pin pointed with the arrow to the direction of the arrow.

7. Disc is ejected.

2

TEST MODE

1 How to Setting and Cancel Test Mode

Setting: While pressing the PLAY/PAUSE keys, insert the power cord to the wall outlet. Cancel: Pull out the power cord.

Key Operation for Adjustment

	Key	Operation
	MULTI JOG	Select parameter and mode.
	PLAY	Fix items. Change of display in every check.
	STOP	Cancel or back of test mode.
2 Remained Keys Operation
	Key		Operation
	DISPLAY		Display changes.
	FF		Pickup moves outwards when press FF key
	FB		Pickup moves inwards when press FB key

3 Selection of test mode

13 test modes are selected by pressing UPIDOWN keys.

No.	Display	Description	Section
1	TEMP ADJUST	The work of adjustment is unnecessary in this mode	6-5
2	LDPWR ADJUST	Laser power adjustment	6-6
3	LDPWR CHECK	Laser power check	6-6
4	EF BAL ADJUST	Traverse adjustment	6-7
5	TE B. ADJUST	Automatic EF balance adjustment
6	FBIAS ADJUST	Focus bias adjustment	6-8
7	CPLAY MODE	Continuous playback mode	5-4
8	CREC MODE	Continuous recording mode	5-5
9	STT-LIMIT SW	Check the mechanism start limit SW position	-
10	JUMP MODE	Track jump checking mode	-
11	SRV DAT READ	Servo data reading	-
12	EEP MODE	E2PROM data reading or rewrite	-
13	EEP INITIAL	E2PROM data initializing	-

For more information on each adjustment mode, refer to each section of 6, "Electrical adjustment". If other adjustment mode has been entered incorrectly, press the STOP key to exit the mode.

*The number 9 -13 are not used for service. If these modes have been entered incorrectly, press the STOP key immediately to exit the mode. Specially, do not use EEP INITIAL. (E2PROM data has initialized if used it.)

4 continuous Playback Mode

1. Setting of Continuous Playback Mode

No.	Key	Display/Function
1	MULTI JOG	Select [CPLAY MODE]
2		Load disc
3	PL AY	[CPLAY MID]
		[c=xxxx a=yy] error
		(xxxx=C1 error, yy=ADIP error)
4	DISPLAY	[CPLAY (zzzz)] CPLAY address
		(MID=0300h, OUT=0700h, IN=0030h cluster)
5	DIS PLAY	[h****d@@@@] address
		(****=current head address, @@@@=ADIP address

In No.5, Display shows [-] if can't read disc.

3

2. Change of Playback Points (In continuous playback mode)

No.	Key	Display/Function
1	PL AY	[CPLAY OUT]
2		Carry out No.4 and 5 in the above table
3	PL AY	[CPLAY IN]
4		Carry out No.4 and 5 in the above table
5	ST OP	[CPLAY MODE]
6		EJECT Disc out

5 Continuous Recording Mode

1. Continuous Recording Setting

	No.	Key	Display/Function
	1	MULTI JOG	Select [CREC MODE]
	2		Load the recordable disc
	3	P LAY	[CREC MID]
	4	PLAY	[CREC (zzzz)] CREC address
			(0300h cluster = recording start point)
	5	DIS PLAY	[h****d@@@@] address
	6	DISPLAY	[c=xxxx a=yy] error
	7	D ISPLAY	[CREC (zzzz)]
	8	S TOP	[c=xxxx a=yy]
2. Change and End of Recording Points
	No.	Key	Display/Function
	1		Carry out No.1 to 3 in the above table Select [CREC MID]
	2	MULTI JOG	[CREC OUT]
	3	PLAY	[CREC (zzzz)] CREC address
			(0700h cluster = recording start point)
			Carry out No.5 to 8 in the above table
	4		Carry out No.1 to 3 in the above table
	5	PL AY	Select [CREC MID]
	6	MULTI JOG	Select [CREC IN]
	7	PLAY	[CREC (zzzz)] CREC address
			(0300h cluster = recording start point)
			Carry out No.5 to 8 in the above table
	8	EJ ECT	Disc out

Starting address is the followings.

IN=30h cluster, MID=300h cluster, OUT=700h cluster

1. The recording start addresses of IN, MID, and OUT are described below.

IN	30H cluster
MID	300H cluster
OUT	700H cluster

2.An erasure prevention control is not detected in the test mode. Be careful not to enter the continuous recording mode using a disc containing the data that should not be erased.

3.Do not record continuously for more than five minutes.

4.Take care that no vibration is applied during continuous recording.

Electrical adjustment

1 Precaution during confirmation of Laser Diode emission

During adjustment, do not view the emission of a laser diode from lust above for confirmation. This may damage your eyes.

4

2 Precaution on handling of Optical pick-up (KMS-260B)

The laser diode in an optical pick-up is easy to be subject to electrostatic destruction. Therefore, solder-bridge the laser tap on the flexible board when handling the optical pick-up.

When removing the flexible board from the connector, make a solder bridge in advance, then remove the board. Be careful not to remove the solder bridge before inserting the connector. Moreover, take careful measures against electrostatic destruction. The flexible board is cut easily. Handle the flexible board with care.

3 Precaution during adjustment

1)Perform the adjustment and confirmation marked with "O" in the order shown in the table when the parts below are replaced.

		Optical pick-up		BD board
			IC6	D101	IC1, IC2, IC10
1.Temperature compensation offset adjustment		X	O	O	O
2.	Laser power adjustment	O	O	X	O
3.Trtvense adjustment		O	O	X	O
4.	Focus bias adjustment	O	O	X	O
5.	Error rate confirmation	O	O	X	O

2)In the test mode, perform the adjustment. After adjustment is completed, chancel the test mode.

3)Perform the adjustment in the order described.

4)Use the following tools and measurement equipment.

CD test disc TGYS-1 Laser power meter

Oscilloscope (with bandwidth of more than 40 M Ohms) (Calibrate the probe before measurement)

Digital voltmeter Thermometer

5)Take care that VC and GND (ground) are not connected on the oscilloscope when two or more signals are monitored on the oscilloscope. (VC and GND are short-circuited in this case,)

4 Creating the recordable continuous recording disc

This disc is used for focus bias adjustment and error rate confirmation. How to create the recordable continuous recording disc is 5-5

5 Offset Adjustment

No.	Kay	Display/Function
1	MULTI JOG	Select [TEMP ADJUST]
2	PLAY	[TEMP = xx (yy)]
		(xx = compensation data, yy = setting temperature
3	MULTI JOG	Input "yy" with present temp.
4	PL AY	[TEMP=**SAVE]
		[TEMP ADJUST] in writing data

5

6 Laser Power Check and Adjustment

Laser power setting in playback and recording modes.

Preparation

1.Remove the MD mechanism from the unit

2.Remove the case and bracket.

3.Reconnect the flat cable of MD mechanism to the unit

1. Laser Power Adjustment

	No.	Key		Display/Function
	1	MULTI JOG		[LDPWR ADJUST]
				Load recordable disc
	2			Load the disc and laser on [a0.9mW>$xx] read power
				(xx = power value)
	3	EJECT		Unload the disc and laser on
	4	FF/FB		Move the pickup to check the laser power with laser power meter sensor
		(REC)		(Press the REC key if the pickup is In the proper position)
	5	MULTI JOG		Adjust “xx” so that the power meter shows 0.9mW.
	6	PLAY		[a7.0mW>$xx] writing power
	7	UPIDOWN		Adjust “xx” so that the power meter shows 7.0mW.
				This adjustment should be carried out In 15secs.
	8	PLAY		Laser power off
				Display shows [LDPWR ADJUST] after [LDPWR<$xx] to save the data In
				E2PROM
		Start from No.2		if readjust.
2. Laser Power Check
	No.	Key	Display/Function
	1	UP	[LDPWR CHECK]
	2	PL AY	[c0.9mW>$xx]
			(xx=0.85 to 0.95mW)
	3	PL AY	[c7.0mW>$xx]
			Laser power meter: 7.0 + - 1.0mW*

7 Traverse Adjustment

V:0.5V/div H: 10ms/div INPUT: DC mode

6

FE Balance

1. Recordable Disc

	No.	Key	Display/Function
	1		Connect the oscilloscope to TE1 and VC in X33 PCB
	2	MULTI JOG	Select [EFBAL ADJUST]
	3		Load the recordable disc
	4	PL AY	[EFBAL MO-W]
	5	PL AY	[EF=$**MOW]
	6	MULTI JOG	Write adjustment. Adjust the waveform as follows.
	7	PLAY	Display shows [EF=$**MOR] after [EFB=**xSAVE] to save the data in
			E2PROM.
			Mode changes write to read
			Focus and disc servo are on. Tracking servo off.
	8	MULTI JOG	Read power adjustment. Adjust the waveform as follows.
	9	PL AY	Save the data in E2PROM.
			Display shows [EFBAL MO-P]
		PLAY	Display shows [EF=$**MOP]
			(Pickup travels to search pits and tune the servo to on.)
	10	MULTI JOG	Adjust the waveform as follows.
	11	PLAY	Display shows [EFBAL CHANGE] after [EFB=**xSAVE] to save the data
			in E2PROM.
			Display shows [EFBAL CHANGE] disc motor stops.
	12	EJECT	Unload disc.
2. PER Master Test Disc (TGYS-1)
	No.	Key	Display/Function
	1		Load the disc (TGYS-1).
	2	PLAY	[EF=$**CD] servo is on
	3	MULTI JOG	Adjust the waveform as follows.
	4		Save the data in E2PROM.
			Display shows [EFB=**xSAVE] in brief time.
			[EFBAL ADJUST]
	5	EJ ECT	Unload disc.

During this adjustment, the oscilloscope changes in units of about 2%. Adjust so that the waveform comes nearest to the specified value. (MO groove read power traverse adjustment)

Notes:

1.Data is erased during MO write when a recorded disc is used for this adjustment

2.If the traverse waveform is difficult to be monitored, connect an oscilloscope as shown in the figure below.

7