Kenwood Dm-vh7 User manual

MINI DISC RECORDER

DM-VH7

SERVICE MANUAL

70%

646

609 608 606

617607619

660

rec level

recording

eject

standby

enter

stop

rec

o.t.e.

on/standby

mode

disc loading mechanism

minidisc recorder

DM-VH7

20bit A/D

&

D/A converter

654 601 A1-A2

611

602J1J3

632

610

DIGITAL IN

OPTICAL

SYSTEM

CONTROL

L

R

REC

IN PLAY

OUT

12

Knob

(K29-7554-04)

AC power cord bushing

(J42-0083-05)

AC power cord *

(E30-) Metallic cabinet (TOP)

(A01-3696-01) Optic receiving module

(W02-1181-05)

Panel

(A29-1051-14) Dressing panel

(A21-3762-13) Knob *

(K29-)

Front glass

(B10-3486-03)

Side plate R

(A50-1326-02) Rectangular receptacle

(E08-0312-05) Phono jack

(E63-1065-05) Metallic cabinet

(BOTTOM)

(A01-3698-01)

Side plate L

(A50-1327-02)

Indicator

(B12-0361-04)

Insulator assy

(J02-1444-14) Dressing panel (BOTTOM)

(A21-3758-02)

Dressing panel (TOP)

(A21-3757-12)

Do not face the light of laser when a repair or action confirmation are done.

* Refer to parts list on page 27.

Refer to X-VH7 service manual (B51-5532-00), if need Disassembly for repair.

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TEL 13942296513 QQ 376315150 892498299

2ABC1 3DEF

5JKL 6MNO4GHI

8TUV 9WXY7PRS

EDIT

CANCEL

0QZ ,, : ?+10

&()-/

+100

RANDOM

REPEAT

CHECK

/SPACE P.MODE

/CHARAC.

CLEAR

DELETE

EDIT SET ENTER

87

¡

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

REC MODE

TIME DISP.

TITLE

SEARCH

MONITOR

REMOTE CONTROL UNIT

RC-M0708

O.T.E.

÷



PLAY

£

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TITLE

INPUT

REC INPUT

POWER

Audio cord (2)

(E30-0615-05)

(A70-1279-05)

(J02-0130-05)

(J19-5996-02)

Battery cover (A09-1106-08)

(E30-2628-05) (B19-1529-05)

(W01-0084-05)

System control cord (1) Optical fiber cable (1)

Remote control unit (1) Batteries (R6/AA) (2)

Check that the following accessories are present.

Spacer (1)

Replacement front feet (2)

Allen wrench (1)

DM-VH7

2

CONTENTS / ACCESSORIES / CAUTIONS

CONTENTS / ACCESSORIES / CAUTIONS............. 2

CIRCUIT DESCRIPTION............................................3

MECHANISM DESCRIPTION...................................11

PC BOARD .............................................................. 14

SCHEMATIC DIAGRAM.......................................... 16

EXPLODED VIEW ....................................................25

PARTS LIST..............................................................27

SPECIFICATIONS ......................................Back cover

Contents

Accessories

Cautions

System configuration

Operation to reset

The microprocessor may fall into malfunction (impossibility

to operate erroneous display, etc.) when the power cord is

unplugged while power is ON or due to an external factor.

In this case, execute the following procedure to reset the

microprocessor and return it to normal condition.

Unplug the power cord from the power outlet then, while

holding the eject (0eject) key depressed, plug the power

cord again.

¶ Please note that resetting the microprocessor clears

the contents stored in, it returns the microprocessor to

the condition when it left the factory.

Note related to transportation and

movement

Before transporting or moving this unit, carry

out the following operations.

1.With no disc loaded in the unit, press the “on/

standby” key to on.

¶ Check that no disc is present in the unit.

2.Wait a few seconds and verify that the display

shown appears.

3.Press the “on/standby” key to off (standby).

CAUTION :

Use of controls or adjustments or performance of proce-

dures other than those specified herein may result in

hazardous radiation exposure.

In compliance with Federal Regulations, following are re-

productions of lables on, or inside the product relating to

laser product safety.

For the U.S.A.

- - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - -

KENWOOD CORPORATION

2967-3, ISHIKAWA-CHO,

HACHIOJI-SHI, TOKYO, JAPAN

KENWOOD CORP. CERTIFIES THIS

EQUIPMENTCONFORMS TODHHS

REGULATIONSNO. 21CFR 1040.10,

CHAPTER 1, SUBCHAPTER J.

- - - - - - - - - - -

Location: Back Panel

CD RECEIVER CASSETTE DECK SPEAKERS

VH-600 RD-VH7 – LS-VH7

VH-700 RD-VH7 X-VH7 LS-VH7

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

3

CIRCUIT DESCRIPTION

Backup item Initialization

• MONITOR OFF

• REC INPUT ANALOG

• REC INPUT/ LEVEL ANALOG=-12dB

• REC mode

TNO MARK AUTO

TNO MARK LEVEL 0(-55dB)

(MD ucom)

1. Backup and initialization

2. MD microprocessor M30620MC-340FP(X25: IC11)

2-1 Micoprocessor periphery block diagram

• The case of the system connection don't memorise

REC INPUT,REC LEVEL and stand up the same

initialization. System ON/OFF and POWER

ON/OFF are memorised the last selector position.

• The case of DISC exist editing record : the set dont

read TOC at AC power on

_Setting of the initialization

While pressing the EJECT key, plug an AC power cord

into AC outlet.

No backup item Initialization

PLAY mode TRACK MODE

REPEAT OFF

(MECHA ucom)

Backup item Initialization

DISC editing record UTOC information

DIN AIN AOUT

UART

A/D INT PWM

PWM

SIO

Mechanism unit

(X33)IC24

MECHA uCOM

HD6432227N01FA

Main uCOM

M30620MC-340FP (X25)IC12

DISPLAY

LCD driver

(64 x 64 full_dot)

LCD module

HD6433297A17F

uCOM

standby eject rec

REM

Key matrix

(2 x 6)

Back up

circuit

Din1 Din2 REC PLAY SL16

vol MUTE

(X25)IC11

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

4

CIRCUIT DESCRIPTION

Pin No. Name I/O Description

1 VOL_DT O Electric VOL IC • communication data

2 VOL_CK O Electric VOL IC • communication clock

3 - O Not used

4 DISP_CE O Display ucom • communication CE

5 DISP_OUT O Display ucom • communication data output

6 DISP_IN I Display ucom • communication data input

7 DISP_CLK O Display ucom • communication clock

8 BYTE - Ucom mode data bus setting

9 CNVss - Ucom mode • inner ROM

10,11 - - Not used

12 RESET I Ucom reset

13 Xout O Ucom oscillation 10MHz output

14 Vss - GND

15 Xin I Ucom oscillation 10MHz input

16 Vcc - Power supply

17 NMI - Ucom compulsion thrust

18 - O Not used

19 CE I Ucom CE

20 REM I Remote control input

21 DISP_RST O Display ucom reset

22 LCD_BL O LCD backlight (Dimmer)

23 POWER O Power supply circuit H: ON

24 LED_EJECT O LCD • EJECT(Dimmer)

25 BACK_V_CHK O Backup voltage check circuit H: ON

26 BACK_V_ON O Backup charge H: ON

27 MECHA_CE O MD mecha. ucom CE

28 MECHA_RST O MD mecha. reset L: RESET ON

29 MECHA_RXD I MD mecha. communication input

30 MECHA_TXD O MD mecha. communication output(N-ch)

31~34 - - Not used

35 TIRLER_TXD O Titular communication output

36 TIRLER_RXD I Titular communication input

37 SDATA I/O Serial data (SL16)

38 SBUSY I/O Serial busy (SL16)

39 RDY I Extension bus control

40 - - Not used

41 HOLD I Extension bus control

42~61 - - Not used

62 Vcc - Ucom power supply (5V)

63 - - Not used

64 Vss - Ucom power supply (GND)

65~74 - - Not used

75 AMUTE O Analog mute

76,77 - - Not used

78 LED_REC O LED REC

79 - - Not used

80 LED_STBY O LED STANDBY

81~88 - - Not used

89~91 KR0~2 I Key return

92 BACK_V I Backup voltage check

93 INISW I Destination switch H: except J type

94 XY_POSITION I X-Y position

95 I_PROTECTION I Current protection

96 AVss - A/D power supply (GND)

97 - - Not used

98 Vref - A/D reference voltage (5V)

99 AVcc - A/D power supply (GND)

100 VOL_LEN O Electric VOL IC • communication data latch

2-2 Pin description

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

5

CIRCUIT DESCRIPTION

Voltage(V) KR0 (89) KR2 (91)KR1 (90)

Threshold

voltage(V)

5.00 (no key on) (no key on) (no key on)

4.59

4.17 ----- eject -----

3.75

3.33 power/standby o.t.e. -----

2.92

2.50 stop ff/level_up -----

2.09

1.67 down up -----

1.25

0.88 fb/level_down play/pause -----

0.42

0.00 rec mode -----

2-3 Key matrix

3. MD mechanism microprocessor HD6432227N01FA(X33: IC24)

3-1 Microprocessor periphery block diagram

(X33)CI2 (X33)IC24

MNT0

ATRAC

MD ucom

AD/DA

MNT1

CXD2654R MNT2

MNT3 (X25)IC11

SWDT

SCLK CTXD

XLAT CRXD

SRDT

SENS

XRST

SQSY

DQSY (X33)IC12

RECP

XINT ADDARST

TX EMPHA

LDON

CXA2523AR RMS

HMUTE

(X33)IC6 SRVMOD

E2PROM

MECHA

RF amp

SCL

SDA

POWER

IDSW MUTE

HEADPOS MUTE_BAR

MDM-06 DISCIN RESET

STTLMT CE

LOADIN

LOADOUT BITRATE

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DM-VH7

6

CIRCUIT DESCRIPTION

Pin No. Name I/O Description

1 SCL O E2PROM clock

2 SDA I/O E2PROM data

3~11 - O Not used

12 VCC - VDD/power supply

13 - - Not used

14 VSS - GND

15~30 - - Not used

31 SRVMOD O X-Y position output

32~34 - - Not used

35 MUTE_BAR O Mute L:MUTE ON

36 POWER O Power ON/OFF (Periphery circuit power supply )

37 MUTE O Mute

38 ADDARST O AD / DA converter reset

39 EMPHA O Emphasis

40 LOADIN O Mecha. loading motor IN direction moving

41 LOADOUT O Mecha. loading motor OUT direction moving

42 AVSS - A/D GND

43 STTLMT I Pickup position switch

44 DISCIN I DISC insert detection

45 - - Not used

46 BITRATE I MD ucom communication speed changeover

47 HEADPOS I Head position (PLAY/REC) switch (AD)

48 IDSW I Mecha. DISC protection/high reflection/low reflection switch (AD)

49~52 - - Not used

53 Vref - A/D reference voltage

54 AVCC - A/D power supply

55,56 MODE0,1 I VDD/mode (MD0,MD1,MD2)=(1,1,1)

57,58 - - Not used

59 RESET I Reset input

60 NMI I VDD/non mask able thrust

61 STBY I VDD/hardware standby input

62 VCC - VDD/power supply

63 XTAL I Clock inverse input

64 VSS - GND

65 EXTAL - Clock input

66 FWE I GND(Flash ROM writing permission)

67 MODE2 I VDD/mode (MD0,MD1,MD2)=(1,1,1)

68~74 - - Not used

75 CE I Ucom CE

76 CTXD O MD ucom transmit data

77 CRXD I MD ucom receive data

78 DQSY I DIN sub-Q thrust

79,80 - - Not used

81 SQSY I EFM/ADIP SYNC thrust

82 XLAT O ACRIC/ATRAC en/decoder IC latch

83 SWDT O ACRIC/ATRAC en/decoder IC output data

84 SRDT I ACRIC/ATRAC en/decoder IC input data

85 SCLK O ACRIC/ATRAC en/decoder IC clock

86 HMUTE O Pull up/over writing head mute output (TX inverse)

87 SENS I ACRIC/ATRAC en/decoder IC SENS (inner status)

88 MNT3 I ACRIC/ATRAC en/decoder IC spindle rock

89 MNT2 I ACRIC/ATRAC en/decoder IC busy

90 MNT0 I ACRIC/ATRAC en/decoder IC FOK

3-2 Pin description

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TEL 13942296513 QQ 376315150 892498299

7

DM-VH7

CIRCUIT DESCRIPTION

Pin No. Name I/O Description

91 MNT1 I ACRIC/ATRAC en/decoder IC shock (track jump) detection

92 XINT I ATRAC thrust

93~95 - - Not used

96 TX O ACRIC/ATRAC en/decoder IC TX (Recording data output enable)

97 RECP O ACRIC/ATRAC en/decoder IC RECP (Laser power changeover)

98 XRST O ACRIC/ATRAC en/decoder IC reset

99 LDON O Laser ON

100 RMS O Pickup frequency changeover

Pin No. Name I/O Description

1 DO O Communication data output

2 DI I Communication data input

3 CLK I Communication clock input

4 RESET I Ucom reset

5 NMI I (Non mask able thrust)

6 Vcc - Ucom power supply

7 STBY I Ucom standby

8 Vss - Ucom power supply)GND)

9 XTAL - ucom OSC(16MHz)

10 EXTAL I ucom OSC(16MHz)

11 MD1 I Ucom mode MD0/MD1

12 MD0 I Ucom mode inner ROM

extension mode :

13 AVss - Ucom A/D power supply(GND)

14~21 - - Not used

22 AVcc - Ucom A/D power supply

23~30 - - Not used

31 Vcc - Ucom power supply

32~39 - - Not used

40 Vss - Ucom power supply (GND)

41~47 - - Not used

48 A0 O LCD drive control

49~56 D0~D7 I/O LCD drive control

57 - - Not used

58 LAT I Communication latch /thrust

59 - I Not used

60 RD O LCD drive control

61 WR O LCD drive control

62 CS1 O LCD drive control

63 - - Not used

64 - - Not used(Pull up)

4. LCD display microprocessor

HD6433297A17F(X25:IC12)

4-1 Description

3-3 Port control

EBITRATE (46 pin): UART communication speed

changeover

EHEADPOS(47pin): Head position detection

Input voltage Bit rate

Vref × 1.0 9600bps

~

Vref × 0.8 14400bps

~

Vref × 0.6 28800bps

~

Vref × 0.4 33600bps

~

Vref × 0.2 38400bps

~

Vref × 0.0 19200bps

Input voltage Head position

Vref × 1.0 OFF

~

Vref × 0.62 PLAY position

~

Vref × 0.45 REC position

EIDSW(48 pin): DISC type detection

Input voltage DISC type

Vref × 1.0 LOW REFLECTION DISC

(PROTECT ON)

~

Vref × 0.69 LOW REFLECTION DISC

(PROTECT OFF)

~

Vref × 0.32 HIGH REFLECTION DISC

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

CIRCUIT DESCRIPTION

8

Key Description

O.T.E. [LCD (LED)]

[all on (blink)] or [off (off)]

STOP Cancel of mode

Key Operation

UP/DOWN Select parameter and mode.

PLAY Fix items. Change of display in every check.

STOP Cancel or back of test mode.

Key Operation

DOWN(SHIFT+) Select servo of PIT or GROOVE

PLAY(SHIFT+) Servo on

REC Pickup stops to move. Skip modes.

STOP(SHIFT+) Servo off

MODE Display change.

UP(SHIFT+) Servo on/off

F F Pickup moves outwards when press FF key

F B Pickup moves inwards when press FB key

(SHIFT+): Show the "SHIFT" on the display by pressing the O.T.E. key

1. Setting of Continuous Playback Mode

No. Key

1 UP/DOWN Select [CPLAY MODE]

2 Load disc

3 PLAY [CPLAY MID]

[c=xxxx a=yy] error

(xxxx=C1 error, yy=ADIP error)

4 MODE [CPLAY(zzzz)] CPLAY address

(MID=0300h, OUT=0700h, IN=0030h cluster)

5 MODE [h✽✽✽✽d@@@@] address

(✽✽✽✽=current head address, @@@@=ADIP address)

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

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

No. Key

Display/Function

1 PLAY [CPLAY OUT]

2 Carry out No.4 and 5 in the above table.

3 PLAY [CPLAY IN]

4 Carry out No.4 and 5 in the above table.

5 STOP [CPLAY MODE]

6 EJECT Disc out

1. Continuous Recording Setting

No. Key Display/Function

1 UP/DOWN Select [CREC MODE]

2 Load the recordable disc

3 PLAY [CREC MID]

4 PLAY [CREC (zzzz)] CREC address

(0300h cluster=recording start point)

5 MODE [h✽✽✽✽d@@@@] address

6 MODE [c=xxxx a=yy] error

7 MODE [CREC (zzzz)]

8 STOP [c=xxxx a=yy]

2. Change and End of Recording Points

1 Carry out No.1 to 3 in the above table Select[CREC MID]

2 UP [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 PLAY Select [CREC MID]

6 UP(twice) 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 EJECT Disc out

Starting address is the followings.

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

LCD Display Descriptions

PLAY(logo) Servo on

PAUSE(logo) Tracking servo on

REC(logo) Record (laser write power)

GRV Servo groove mode

CLV-S Rough servo clock

CLV-A Spindle lock

RECORD Recordable disc or no disc

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

mode 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.)

5-4 Selection of test mode

13 test modes are selected by pressing UP/DOWN keys.

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.

No. Display Description Section

1 TEMP ADJUST The work of adjustment is 6-5

unnecessary in this mode

2 LDPWR ADJUST Laser power adjustment 6-6

3 LDPWR CHECK Laser power check 6-6

4 EFBAL ADJUST Traverse adjustment 6-7

6 FBIAS ADJUST Focus bias adjustment 6-8

5 TE B. ADJUST Automatic EF balance adjustment.

7 CPLAY MODE Continuous playback mode 5-5

8 CREC MODE Continuous recording mode 5-6

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 E2PPROM data reading or rewrite –

13 EEP INITIAL E2PROM data initializing –

5. TEST MODE

5-1 How to Setting and Cancel Test Mode

Setting: While pressing the ON/STANDBY and MODE

keys, insert the power cord to the wall outlet.

Cancel: Pull out the power cord.

Mechanism Initialization

Setting: While pressing the EJECT key, insert the power

cord to the wall outlet.

Display shows [INITIALIZE]. Mechanism is in normal

mode after unload the disc if it loaded

Display

Setting: While pressing the MODE key, insert the power

cord to the wall outlet.

Cancel: Pull out the power cord.

Key Operation for Ajustment

5-2 Remaind Keys Operation

Caution: Data of E2PROM will be erased if pressed

O.T.E. key for more 3seconds.

5-3 Display of Mechanism operation in Test Mode

5-5 Continuous Playback Mode

5-6 Continuous Recording Mode

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

CIRCUIT DESCRIPTION

9

6. Electrical adjustment

6-1 Precaution during confirmation of Laser Diode

emission

During adjustment, do not view the emission of a laser

diode from just above for confirmation. This may damage

your eyes.

6-2 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.

6-3 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.

2) In the test mode, perform the adjustment. After

adjustment is completed, cancel 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 MΩ)

(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.)

6-4 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 5-6.

Optical BD board

pick-up IC6 D101 IC1,IC2,IC10

1.Temperature compen-

sation offset adjustment X O O O

2.Laser power adjustment O O X O

3.Traverse adjustment O O X O

4.Focus bias adjustment O O X O

5.Error rate confirmation O O X O

Pick-up Flexible board

Laser tap

6-5 Offset Adjustmen

No. Key Display/Function

1 UP/DOWN Select [TEMP ADJUST]

2 PLAY [TEMP=xx (yy)]

(xx=compensation data, yy=setting temperature)

3 UP/DOWN Input "yy" with present temp..

4 PLAY [TEMP=✽✽SAVE]

[TEMP ADJUST] in writing data

6-6 Laser Power Check and Adjustment

Laser power setting in playback and recording modes.

Preparation

1. Remove the MD mechanism from the unit.

2. Connect the VOM to IOP1 and 2 on X33 pcb.

3. Remove the top plate from traverse unit.

4. Remove the magnetic head.

5. Remount the MD mechanism to the unit

+

-

Laser

power meter

Digital

voltmeter

Objective lens of

optical pick up

IOP2

IOP1

X33

ADJUSTMENT

1. Laser Power Adjustment

No. Key Display/Function

1 UP/DOWN [LDPWR ADJUST]

Load recordable disc

2 Load the disc and lazer on

[(0.9mW) $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 UP/DOWN Adjust "xx" so that the power meter shows 0.9mW.

6 PLAY [(7.0mW) $xx] writing power

7 UP/DOWN Adjust "xx" so that the power meter shows 7.0mW.

This adjustment should be carried out in15 secs.

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 PLAY [(0.9mW) $xx]

(xx=0.85 to 0.95mW)

3 PLAY [(7.0mW) $xx]

Laser power meter: 7.0+-1.0mW✽

VOM:optical pickup indication value +-10%✽

In this case, lop = 82.5 mA

lop(mA) = Reading of digital voltmeter(mV)/1(Ω)

(optical pick-up label) KMS 260B

27x40

B0825

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TEL 13942296513 QQ 376315150 892498299

DM-VH7

CIRCUIT DESCRIPTION

10

1. Recordable Disc

No. Key Display/Function

1 Connect the oscilloscope to TE1 and VC in X33 pcb

2 UP/DOWN Select [EFBAL ADJUST]

3 Load the recordable disc

4 PLAY [EFBAL MO-W]

5 PLAY [EF=$✻✻MOW]

6 UP/DOWN

Write power 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 UP/DOWN

Read power adjustment. Adjust the waveform as follows.

9 PLAY

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 UP/DOWN Adjust the waveform as follows.

11 PLAY Display shows [EFBAL CD] after [EFB=✻✻xSAVE]

to save the data in E2PROM.

Display shows [EFBAL CD] 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 UP/DOWN Adjust the waveform as follows.

4 Save the data in E2PROM.

Display shows[EFB=✻✻xSAVE] in brief time.

[EFBAL ADJUST]

5 EJECT Unload disc.

No. Key Display/Function

1. CD Error Rate

1 UP/DOWN [CPLAY MODE]

2 Load the test disc(TGYS-1)

3 PLAY Display shows [CPLAY MID]

Access end

[c=xxxx a=yy] xxxx=C1 error (lower 20) yy=AIDP error

4 STOP [CPLAY MODE]

5 EJECT Unload disc.

2. MO Error Rate

No. Key Display/Function

1 UP/DOWN [CPLAY MODE]

2 Load the recordable disc

3 PLAY Display shows [CPLAY MID]

Access end

[c=xxxx a=yy] xxxx=C1 error (lower 50) yy=AIDP error(00)

4 STOP [CPLAY MODE]

5 EJECT Unload disc.

No. Key Display/Function

1 UP/DOWN Select [FBIAS ADJUST]

2 Load the disc.

3 PLAY [a=xx yyyy/zz] point a

(xx=focus bias, yyyy=C1error)

4 UP Adjust "yyyy" to 220

✻

5 PLAY [b=xx yyyy/zz] point b

6 DOWN Adjust "yyyy" to 220

✻

7 PLAY [xx yyyy/zzc=] point c

Check "yyyy" within 50

8 PLAY Display shows [aa bb cc(xx)] focus bias adjust

(aa=point a,bb=b,cc=c )

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)

(Traverse waveform)

Specification : A = B

FE Balance

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.

* Notes :

1. The relation between the C1 error and focus bias value

is shown in the figure below. Points “a” and “b” in the

figure are detected by the above adjustment. Focal

position “C” is automatically obtained from points “a”

and “b” by calculation.

2. The C1 error rate fluctuates. Therefore, perform the

adjustment according to the observed mean value.

6-8 Focus Bias Adjustment

Use the special disc(continuous recorded disc)

Focus bias value

C1 error

(TE1) 330kΩ

10pF

(VC)

Oscilloscope

+

-

6-9 Error Rate Check

6-7 Traverse Adjustment

Connection :

TE1

VC

Oscilloscope

X33

ADJUSTMENT +

-

V: 0.5V/div H: 10ms/div

INPUT: DC mode

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TEL 13942296513 QQ 376315150 892498299

FRONT

Start

limit

switch

3

12

Loading

motor

Gear(Feed)

Gear(Worm)

Pickup

ON

467

5

8

HOLDER ASS'Y

FRONT

Slider (outer)

Cam Groove

9

1. Eject Operation

1. The gear(worm) turns clockwise(1) if the start limit switch is in off. (the pickup

is not full inward position)

2. The gear(feed) turns frontwards.(2)

3. The pickup travels inwards by the reed-screw.(3)

4. The feed motor(FM) stops to turn after the strat limit switch is in on.

5. The loading motor(LM) turns clockwise(4) if the

start limit switch is in on.

6. The gear(drive) turns counterclockwise.(5)

7. The gear(idler) turns clockwise.(6)

8. The gear(intermediate)turns counterclockwise.(7)

9. The gear(final) turns clockwise.(8)

10. The slider(outer) travels frontwards.(9)

11. The holder ass'y lifts by the boss of the

lever(clamp) located in the groove of the

slider(outer).

11

DM-VH7

MECHANISM DESCRIPTION

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TEL 13942296513 QQ 376315150 892498299

11

13

12

Slider (load)

FRONT

Slider (inner)

Eject detection switch

FRONT

10

Lever (change)

Slider (outer)

12. The lever(change) moves and turns clockwise(0) after the slider(outer) travels to the stop position.

13. The gear(final) separates from the slider(outer). And the gear(final) engages with the slider(inner).

14. The slider(inner) travels frontwards.(-)

15. The slider(load) travels frontwards (=) by the boss of the slider(load) in the groove of the slider(inner)

16. MD disc will come out.

17. The loading motor stops to turn by pressing the eject detection switch(~) with the slider(inner).

DM-VH7

12

MECHANISM DESCRIPTION

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TEL 13942296513 QQ 376315150 892498299

14

Lever (HD)

Slider

(outer)

HOLDER ASS'Y

FRONT

15

2. Loading Operation

1. The disc is loaded.

2. The slider(inner) is pressed.

3. The eject detection switch turns off.

4. The loading motor turns counterclockwise.

5. The disc is inserted into the mechanism in

the reverse order of eject operation.

6. The loading operation will stop by the play

position switch turning on(!).(Recording

operation will be continue to 3.)

3. Recording Operation

1. In recording mode, the recording detection

position switch will be in on by traveling

the slider(outer) backwards.(@)

2.The recording head goes down by

movement and turning with the

lever(HD)on the slider(outer).

Manual operation:

Loading and eject operaions carry out by

pressing slider(inner or outer)

DM-VH7

MECHANISM DESCRIPTION

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TEL 13942296513 QQ 376315150 892498299

13 14 15

ACEGIBDFHJ

2

1

3

5

7

4

6

R24

R33

R103

R102 R106

R105

R104

R36

R65

R34

R113

R31

R111

R110

R66

R57

R56

R55

R58

R39

R51

R40

R54

R53

R52

R35

R63

R64

R62

R61

W1

R126

R125

R124

R119

R123

R50

R49

R140

R139

R32

C59

C82

C60

C50

C56

C77

C55

C160

C103

C106

C107

C108

R14

R13

R16

R15

R4

R11

R10

R17

R23

R79

R22

R74

R18

R75

C36

C35

C32

C31

C49

C78

R5

R1

C14

C15

R118

R2

R116

R181

R78

R128

R77R76

R129

R27

R26

R29

R28

R42

R41

C113

W2

R6

R72

R73

R130

R127

R90

EBEB

E

B

E

B

EB

R157

R160

33 32

48

49

R176

R174

R172

R170

64 1

17

16

R168

R166

C151

R150

R155

C158

C153 R143

R144

C116

R171

R146

R177

R175

R173

R164

R145

R169

C157

C156

C155

C154

C115

C114

C4

R154

R165

C159

R179

R180

R156

R161R163

EB

R153

R152

R158

R159

R151

EB

R162

D3

Q8

Q3

Q2

Q6

Q7

Q9

D30

D7

D9

D10

Q16

D20

Q27

Q11

D14

Q28

Q13

Q10

D19

D23

IC12

Q31Q33 Q32

13

126

116

E2PROM

CE

10MHz

REM

3.3V

5V

HOLDWR

WR

C26

R21 C62

C61

C84

R80

C24

C74

C25

C87

SGND

BUSY

SDATA

GND

L2 C38

C41

C33

C37

C48

C47

C42

C45

C46

C34

C16

C101

C73

C79

C23

C69

C1 C2

C13

C58 C57

C52

C53

C51

C54

C10

C12

C30

C9

L.P.F.

MUTE

-5V

+7VD DC-DC

-10VAVR +5V AVR

VOL.

C8

C3

AD1

L3

C7

C22

C21

R19

C71

R91 R92

R68

R101

R69

R67

R114

R108

C81

R59

R60

R117

R115

R133

R132 R131 R120

R122

R121

R141 R142

R134

R137

C83

C86

C76

C80

C104

C44

C43

R46

R43

R44

C85

R45

R112

R100

C88

C102

1

4

5

8

14 8

7

1

3131

1

4

58

16 9

8

5

4

100

81

80

51

50

31 30

51

OGI

EB

BE

G

IO

21

PAUSE

16MHz

POW./STANDBY MODE

PLAY

1

X2

C152

30 STOP

O.T.E.

16

UP FF

EJECT

REC

STANDBY

DOWN FB REC

13

EB

E

B

BE

S

G

BE

D

X1

1

216

WH1

IC5

Q12

Q14

Q5

D13

Q23

Q24

IC4

J3

E2

J1

A3

A2

A1

J4

D1

D2

S20

Q1

CN1

CN5

CN2 CN4

Q4

Q17

D12

D11

D5

D4

X25-6240-00 A/3 (J70-1312-12)

Q29

Q21

D21D22

IC10

IC6

IC11

IC7

IC9

IC8

S7

S6

CN8

CN7

S5

S8

CN6

D26

S1

D24

S11

S4 S3

S9 S10

S2

WH1

D25

E1

X25 B/3

X25 C/3

SYSTEM

CONTROL

REC

IN

PLAY

OUT

DIGITAL

INPUT

OPTICAL

1

2

C107

R15

R16

L6

W3

W4

W1

L1

L2

R108

C167

C163

R8

R9

R145

C141

R161

R115

R52

R125

R127

R144

R53

R3

R4

X2

W2

R186

R187

C171

C188

R166

C189 C158

C115

L7

C116

L8 C117

C105

C133

R175

R184

R188

R190 R189

R177

R180

R117 R105

R106

R158

R159

R147

R169

R137

R1

W108

W9

W12

R174

R173

R149

R123

R129

C125

R130 R128

C127 C126

W8

R116

W10

C159

EB

R126 1

16

17 32

1

8

916

1

3

4

5

1

25

51

75 76 100

50 26

110

20 11

1

12 13 24

37

48

25

36

R109

2

3

5

1

120

10 11

1

8

1

25

26

50

51

7576 100 1

4

5

8

24

13

12

1

26

EB

IC12

IC3

IC8

Q2

IC2

Q6

IC6

IC5

Q1

Q4

IC1

IC7

IC4

Q9

CN5

IC24

CN1

R139

R17

R2

C46

R14

W7

L9

C160

C161

C197

C153

C156

C152

R113

C151

R138

R164

L5 R141

R181

R163

C164

R162

C168

R176

R104

L50

C198

R13

C106

R148

R150

R146

W5

C124

C135

C108 W196

C123

C122

R6

R5

R167

R165 R7

C110

C143

C144

C142

C129

C132

C131

C130

C128

C134

R103

R112

R170

R121

R110

R142

R143

R133

R134

R131

R132

R140

R135

R136

C187

C190

R171

R178

R172

R182

R183

R41

R40

L4

C200

C118

L11

W6

C121C136

C112

C113

C102

C111

C109

R185

R179

R107

C39

C38

C103

C104

C101

C37

C119

C36

C35

C169

C12

C13

C182

C31

C32

C34

C40

C185

C181

C186

C33

C41

C44

R160

R168

C170

C166

R10

R11

C184

C157

L3

R114

W11

R111

R119

C114

R120

X1

12

20

21

R118

R122

C120

R124

11

10

21

1

6

10

5

4

2

31

EBE

B

EB

B

E

EB

E

B

O

G

I

BE

X29-2650-00 A/2

(J70-1307-02)

X29 B/2

W3

R3 R2

R1

W1

R4

W5

W4

1

4

1

11

14

Q5

Q7

Q3

Q8

IC10

Q11 Q10

D101

D1

D2

IC30

Q13

Q12

CN2

CN3

CN4

X33-1190-00 (J70-1311-02)

S5

S4

S3

S2

S1

CN1

Refer to the schematic diagram for the value of resistors and capacitors.

PC BOARD(Component side view)

DM-VH7(K)PCBSD2,2P( 99.10.30 11:49AM y[W 1

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TEL 13942296513 QQ 376315150 892498299

LMNOA BDFHCEGIJK

2

1

3

5

7

4

6

48

47

46

45

44

43

42

41

40

39

38

37

13

14

15

16

17

18

19

20

21

22

23

24

MORFO

MORFI

RFO

OPN

OPO

ADD

COMPP

COMPO

AGCI

RFAGC

RF

PEAK

GND

TEMPI

TEMPR

SWDT

SCLK

XLAT

XSTBY

FOCNT

VREF

EQADJ

3TADJ

VCC

1

2

3

4

5

6

7

8

9

10

11

12

36

35

34

33

32

31

30

29

28

27

26

25

I

J

VC

A

B

C

D

E

F

PD

APC

APCREF

BOTM

APCD

FE

AUX

ADFG

ADAGC

ADIN

ADFM

SE

CSLED

TE

WELAD

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

TRK-

TRK+

FCS-

FCS+

K

PD

VR

MOD

ILCC

LD-GND

VCC

J

B

A

VC

I

F

C

D

E

VEE

1

4

1234567891011

DISC ID

HEAD POSI

LOAD SW

SLT SW

LOAD M-

LOAD M+

SPDL-

SPDL+

GND

SLED-

SLED+

1

2

3

4

5

6

7

8

9

10

TE1

TE2

FE2

FE1

RF

TP1

TP2

F

E

VC

1

2

3

4

5

6

7

8

9

10

DO0

DO1

XWE

XRS

A9

A0

A1

A2

A3

VCC

20

19

18

17

16

15

14

13

12

11

GND

DO2

DO3

XCA

XOE

A8

A7

A6

A5

A4

C117 0.1

C116 0.022

R180 10K

C188 0.01

R184 10K

C115 0.22

C200

10

L5

L6

0.022

C109

470K

R107

10K

R104

1000P

C106

R158 100K

R177

3.3K

R188

10K

R189 3.3K

R175

C158 6800P

100K

R159

C189

0.033

R190 10K

C102

0.1

10u10

C101

+

10K

R185 47K

R179

C111 0.068

C112 4700P

R147 100

C113 1

100

R146 220

R150

23

15

4

1K

R103

10K

R110R112

47K

R113

1K

R115

C108 0.1

C169 10u10

+

L8 L7

C167 0.1

2.2

R166 1

R169

1/2W

C107 0.1

R165 100K

C168 0.1

680

R164

470K

R117

3.3M

R106

R105

4.7K

R167

C164 0.01

C163 0.01

C141 0.1

2.2K

R161

2.2K

R162

GND

VCC 5

43

2

1

C105

0.01

C153

8

5

6

7

9

3

4

3

9

8

9

8

3

R108 1K

R109 1K

0.01

3

7

9

8

4

5

6

10u10

C119

+

C104 10u10

+

C103 10u10

+

7

6

7

6

Q2

12

11

12

11

Q2

32

34

36

37

38

31

44

43

39

43

44

39

40

37

38

36

31

32

33

34

R132

100K

0.47

C129

0.01

C128

10K

R131

100P

C130

680K

R133

C132 0.47 3.3K

R135R136 1K

R134 1K

150

R140

0.015

C131

0.1

C124

10u10

+

75

74

23

21

L4 100uH

C161

10u10

92

91

93

94

91

92

93

L3 100uH

10u10

C160

C156 0.1

10uH

L1

86

85

88

89

27

25

6

8

R148

100 560

R141

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

0.1

C182

82

81

80

99

100u6.3

C181

+

C197 0.1

C152 0.1

C151 100u6.3

+

79

78

81

80

83

82

85

89

88

86

0.1

C134

R142 10K

R143 10K

C142 100P

C143 100P

C144 100P

C122 0.01

R121 100K

82

90

91

89

88

87

83

85

84

98

81

78

97

R7 10K

R5 10K

R125 220

R1 220

100u6.3

+

10

9

8

7

6NC

VS

OT1

VRF

IN1 1

2

4

5

3

IN2

VCC

OT2

NC

GND

4.7K

R40

3

2

1

4

5

1

4

2

3

12

21

23

10

75

74

67

66

65

64

63

83

79

5

R137 C133

4700P C13 6P

C12 6P

1M

R127

X1

512fs

10u10

C186

+

470u6.3

C1

+

48

47

44

43

3

8

6

25

27

8

3

L9

68

1/4W

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

A/D

CONVERTER

ANALOG MUX

ADIP DECODER

AUTO

SEQUENCER

EFM/ACIRC

ENCODER/DECODER

COMP

PLL

DIGITAL

AUDIO SAMPLING

RATE

SERVO

DSP

PWM

GENERATOR SPINDLE

ATRAC

SERVO

I/F

4

CONVERTER

ENCODER/DECODER

412

BLOCK

CPU I/F

CONTROL

MONITOR

MEMORY CONTROLLER

SHOCK RESISTANT

PROCESSOR

SUBCODE

GENERATOR

CLOCK

BLOCK

68

64

65

67

66

63

100

C135

0.1

C184

33

R144 220

R145 220

40

51

50

51

50

0.1

C110

C121

L11

+

100u6.3

C136

C123

0.1

R14 4.7

28

27

R6 10K

22.5792MHz

96

92

19

21

R123 220

2.2K

R163

16

15

14

13

12

11

10

9

8

17

19

18

21

20

22

25

24

23

FACE

INTER-

PRE DRIVE

INTER-

FACE

7

6

5

4

3

2

30

26

28

27

29

32

31

VDD

PRE DRIVE

INTER-

FACE

INTER-

FACE

6 OSC

PUMG

CHARGE

1

PSB

C185

1000P

3

2

15K

R126

6.8K

R120

R119 8.2K

R122

6.8K

R129

10K

220P

C114

330P

C125

C159

0.1

R130 10K

C127 470P

C157

C126 470P

R128 10K

R138

0.110

R124 15K

C120 330P

W8

10uH

L2

W9

1

R139

110K

R116

10K

R111

R114

10K

49

48

46

47

45

78

46

45

47

49

48

10

12

10

12

10

12

R118 8.2K

R9 100

R8 100

+3.3V+3.3V+3.3V+3.3V

+3.3V

+3.3V+3.3V

+3.3V

+3.3V +3.3V

+3.3V

+3.3V+B

+3.3V

+B+B

+3.3V

+B +B

+3.3V +3.3V

+3.3V +3.3V+B+B

+B

+3.3V +3.3V

+5V

+5V+5V

+3.3V

+B

40

41

3.3K

R41

0.1

C118

+B

+5V+5V

+5V +5V

+5V

+B

5V5V

5V 5V 5V

5V

29

Q7

97

100

+5V

B

+B

W6,12

L2

A

R111,114 YES

NO

-00

NO

YES

-01

IOP2 IOP1

9810

12

16 314

13

1

+5V

+B

+5V +5V

+5V

+5V+5V

HEAD POSI

LOAD M

R1

82K

2

1

4

3

GND

2

1

4

3

SLED

2

1

GND

SPINDL

3

4

5

LOAD M

SLT SW

6

7

8

33K

LOAD SW

HEAD PO

DISC ID

9

10

R4

22K

11 R2 R3

33K

IC1

IC2

IC8

IC7

IC3

IC5

IC30

(X33-1190-00)

(X29-) (B/2)

(X29-2650-00) (A/2)

(D40-1637-05) : MDM-06(1)

MD MECHANISM

CN2

CN4

CN3

D101

Q1

Q4 Q5

Q6

Q3

Q7

Q2

(KMS-260B)

PICKUP

BLOCK

RF AMP

LOADING

MOTOR

HEAD

DRIVER

SL/SP MOTOR DRIVE

FOC./TRA.DRIVE

ENDECODER

ACIRIC

ATPAC

4M DRAM

DIGITAL

RF

OUT

IC1 : CXA2523AR

IC2 : CXD2654R

IC3 : HD74UH08

IC5 : BD9711FV

IC6 : BR24C02F

IC7 : HM51W4400BTT-7 or

IC8 : BH6511FS

IC10 : L88M33T

IC12 : AK4522-VF

IC4 : TA8406F

IC24 : HD6432227N01FA

IC30 : TA8409F

Q1 : FMW1

Q2,3 : DTA144EUA

Q4,5 : DTC114YUA

Q6,8,23 : 2SA1576A(R,S)

Q7 : 2SB798-DL

Q9 : DTA124EUA

Q10-13 : DTC124EUA

D1,2 : F1J6TP

D101 : MA111

ADJUSTMENT

APC

MN41V4400TT-08

SHOCK PROOF

VG

LD

CHANGE

-OVER

D1

D2

ON/OFF

LD

DRIVE

Q12

Q13

OPTICAL

EFM

-M

ON

LOAD

+M

ON

Q9

IC4

10 INPUT OUTPUT

IN1 IN2

18OUT1 OUT2

3MODE

LL LH

MOTOR

STOP

LH

L

HH

HHL

LL

CW/CCW

BRAKE

CCW/CW

HEAD

OVER

WRITE

DIGITAL LINE

GND LINE

SIGNAL LINE

B LINE

IC30

DM-VH7

(1/2) (2/2)

IC4

A

LOAD

SLT

DISC

REFLECTION

ID

S3

S2

S1

DISC

PROTECT

SLED

MOTOR

M

MOTOR

M

LOADING

M

PLAY POSI

CN1

REC POSI

S4

S5

0.3V

2.5V

1.4V

1.6V

1.4V

1.7V

1.8V

0.3V

3.3V

3.1V

1.7V

0V

2.3V

0V

2.2V

1.2V

1.8V

1.6V

1.7V

1.6V

1.7V 1.6V

1.2V

1.6V

1.9V

1.4V

1.6V

1.4V

0.4V

3.3V

0.4V

3.3V

3.2V

3.3V

2.8V

3.3V3.2V

2.5V

2.8V

2.5V

2.7V

2.9V

0V 3.1V

3.3V

3.1V

2.6V

1.8V

3.3V

0.2V

3.2V

0.2V

1.4V

3.1V

3.0V

0.4V

3.1V

0.4V

1.6V

3.0V

0.5V

2.9V

3.0V

2.9V

3.2V

1.4V

1.6V

3.2V 0.3V

1.6V

1.5V

1.7V

1.9V

1.6V

1.4V

1.6V

1.4V

1.6V

3.2V

1.7V

3.2V

0.8V

1.6V

0V

0.2V

3.2V

0V

0.2V

0V

0.6V

3.2V

0V

3.2V

0V

3.2V

3.1V

3.0V

3.1V

1.2V

3.1V

3.2V

3.1V

3.2V

0V

3.1V

0V

1.4V

1.0V

3.3V

1.6V

0V

1.2V

1.6V

3.0V

2.9V

0.5V

3.0V

3.1V

0.4V

3.0V

2.9V

3.2V

1.2V

1.5V

1.6V

1.9V

3.3V

3.2V

5.1V

REC: MAX4.5V

5.1V

REC: MAX1.5V

3.2V

0V

3.2V

0.3V

5.1V

0V

-5.4V

0V

0.6V

5.1V

5.0V

5.1V

0.6V

3.0V

5.0V

0V

5.0V

0V

2.5V

7.2V

0V

0.3V

5.1V

0

0V

5.1V

0V

5.1V

0V

3.2V

0V

9.3V

0.6V

3.2V

5.1V

0.9V

0V

5.1V

0V

0.3V

5.1V

0V

3.2V

The DC voltage is an actual reading measured with a high

impedance type voltmeter. The measurement value may

vary depending on the measuring instruments used or on

the product. Refer to the voltage during RECORDABLE MD

PLAY unless otherwise specified; The value shown in ( ) is

the voltage measured at the moment of STOP. The voltage

followed by (REC) refers to the value during MD RECORD-

ING.

DM-VH7(K)PCBSD2,2P( 99.10.292:48PM y[W 1

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

QSUWPRTV YX

Y22-8050-11 DM-VH7

)

(

)

(

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

CE

MODE2

FWE

EXTAL

VSS

XTAL

VCC

STBY

NMI

RESET

MODE1

MODE0

AVCC

VREF

SCL

SDA

VCC

VSS

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

CTXD

CRXD

DQSY

SQSY

XLAT

SWDT

SRDT

SCLK

HMUTE

SENS

MNT3

MNT2

MNT0

MNT1

XINT

TX

RECP

XRST

LDON

RMS

IDSW

HEADPOS

BITRATE

DISCINSW

SLTSW

AVSS

LOADM-

LOADM+

EMPHA

ADDARST

MUTE

POWER

FRDT

FWDT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 H+5V

HGND

+3.3V(OUTPUT)

BACKUPV

CTXD

CRXD

BACKON

CE

MECHARST

AINR(DATA)

DGND

AINL(BCK)

-5V(GND)

DGND

GND

AOUTR(LRCK)

A+5V

AOUTL(MCK)

D+5V

DIN2

M+5V

DIN1

M+5V

MGND

DOUT

MGND

1234567

12

11

10

9

8

7

6

5

4

3

2

1

SDTI

SCLK

LRCK

DIF1

DIF0

AGND

VA

AINL-

AINL+

NR-

NR+

REPH

13

14

15

16

17

18

19

20

21

22

23

24

SDTO

SMUTE

DEM0

DEM1

NCKI

VD

DGND

PD

CMODE

AOUTL

AOUTR

VCOM

C37 0.1

C39 4.7u25

+

C35 2200P

R3 150

C36 0.1

C38 4.7u25

+

C34 2200P

X2

10MHz

3.3K

R176

87

88

89

90

91

92

84

R182 47K

R183 47K

R172 47K

R181 47K

0.1

C166

1

2

3

100u6.3

C190

+100u6.3

C187

+

32

31

6

7

8

5

2

1

4

3

39

38

10K

R170

10K

R171

0.1

C171

R52 10

R53 10

R4 150

+5V

10u10

+

0.1

10u10

C41

+

10u10

R10 100

R11 100

1K

R178

37

41

40

47

44

43

48

R16 470K

R15 470K

66

67

C170 0.1

R168 4.7K

+5V

76

77

R17

39

37

38

66

67

31

32

+B

+B+B+B

+B+B+B+B

+B

+B +B

R186 470K

R187 470K

R173

R174

78

81

82

85

83

77

76

98

96

2.2

R2

R149 100

+5V

47K

100

99

27

28

97

47K

21

19

75

59

75

C33

C40

C32

C31

+5V

0.1

C44

1

+5V

+3.3V

+5V

W12

+3.3V

OUT

GND

IN

+5V

+5V+5V

+3.3V

4.7

R160

100u6.3

C198

+

+3.3V+3.3V

+3.3V

+3.3V+3.3V+3.3V

+3.3V

R13 100

+3.3V

+3.3V +3.3V

+3.3V

+5V

59

+5V

+5V+5V+5V

+B

5V5V5V5V

59

29

97

+B

+5V

+B

IC24

IC12

IC10

IC6

DM-VH7(J/K) (1/2)

A

CN1

CN5

Q10

Q8

Q11

MD MECHA

u-COM

3.15V AVR

3.3V AVR

DA/AD

CONVERTER

DIGITAL

REC

DIGITAL

IN1

IN2

DIGITAL

PLAY

E2PROM

X25-A/3

2/2

-CN4

3.2V

3.3V

3.2V

0V

2.0V

3.2V

0V

3.2V

1.3V

1.5V

3.2V

3.3V

1.8V

0.9V

3.2V

3.1V

1.2V

3.0V

3.2V

3.1V

3.2V

0V

3.2V

3.1V

REC: 0.4V REC: 3.2V

3.2V

0V

3.3V

2.6V

0V

5.0V

1.6V

1.0V

1.6V

3.3V

2.5V

4.9V

3.2V

3.3V

1.6V

0V

1.1V

3.2V

2.5V

0V

2.5V

3.3V 5.1V

(X33-1190-00)

2SA1534A DTA144EUA

DTC114YUA

DTC143TUA

UN5119

UN5216

2SA1576A

2SA1586

2SC4116

2SD2061

FMW1 2SB798-DL 2SD2012

DTA124EUA

DTC124EUA NJM4565M BA17805T

UPC7805AHF

UN5212 2SK246 HD74LVC08T

DA204U CXA2523AR TA8409F

BH6511FS HD74UH08

SM6451AV L88M33T

BD7911FV

CAUTION: For continued safety, replace safety critical compo-

nents only with manufacturer's recommended parts (refer to

parts list). indicates safety critical components. For continued

protection against risk of fire, replace only with same type and

rating fuse(s). To reduce the risk of electric shock, leakage-cur-

rent or resistance measurements shall be carried out (exposed

parts are acceptably insulated from the supply circuit) before the

appliance is returned to the customer.

DM-VH7(K)SD2P( 99.10.293:20PM y[W 3

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

ZAA AC AE AG AIAB AD AF AH

2

1

3

5

7

4

6

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

UARTB TXD

UARTB RXD

MECHA-RST

MECHA-CE

BACKUP-V-ON

BACKUP-V-CHK

EJECT

POWER

LCD BL

DISP RST

REM

CE

RXRDYA

NMI

VCC

XIN

VSS

XOUT

RESET

NC

CVSS

BYTE

DISP CLK

DISP DTIN

DISP DTOUT

DISP CE

NC

VOL CLK

VOL DATA

VOL LEN

AVCC

AVREF

NC

AVSS

PROTECT

X-Y POSI.SW

INI SW

BUCKUP V

KR2

KR1

KR0

D0

D1

D2

D3

D4

D5

D6

D7

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

A9

VCC

A8

VSS

A7

A6

A5

A4

A3

A2

A1

A0

SDA

SCL

MUTE

NC

STANDBY

NC

REC.

UTTX1

UTRX1

NC

UTTX2

UTRX2

SDATA

SBUSY

RDY(+5V)

ALE(NC)

HOLD(+5V)

HLDA(NC)

BCLK(NC)

RD(NC)

BHE(NC)

WR(NC)

NC

SRAM CS(NC)

UART CS(NC)

PROM CS(NC)

1

2

3

4

GND

SDATA

SBUSY

SGND

1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526

H+5V

HGND

+3.3V

BACKUP

CTXD

CRXD

BACK-ON

CE

MECHA.RST

AINR

DGND

AINL

-5V

DGND

GND

AOUTR

A+5V

AOUTL

D+5V

DIN2

M+5V

DIN1

M+5V

MGND

DOUT

MGND

SGND

SBUSY

4

3

GND

SDATA

1

2

0.01

C108

330

R132

100K

R134

330

R131

100K

R133

220P

C106

100K

R139

R140

220P

C107

100K

C.T.

X1

10MHz

2

1

12

100

R124

0.1

C103

47K

R118

7

4

6

5

R123 47K

R113 47K

R114 10K

C102 100P

C104 0.1

R116 100 20

R127 100 21

R115 47K

22

24

R117 47K

R125 47K

26

R119 47K

R126 47K

28

29

100

R121 30

100

R120

R137 47K

R110 47K

R111 47K

4.7K

R112

47K

80

78

R108

90

89

R103 47K

R101 47K

R100 47K

C113 0.01

100

R102 4.7K

R104

R106 47K

GND

OUT IN

0.1

C15

100u10

C16

+

10K

R18

0.1

C14

1000u6.3

C13

+

10K

R17

330

R15

4.7K

R16

1K

R14

100

R13

470u16

C24

+

470

R26

100

R27

470

R29

10u16

C25

+

470u6.3

C26

+

330

R11

100u10

C10

+

10u16

C12

VDD 3

2

GND

1

OUT

0.1

C77

100u10

C79

+

VDD

GND

3

C78

0.1

2

OUT 1

47u10

1200P1200P

R56

3.9K +

4.7K C62

47u10

100K

R50

R52

C54

6.8K

R54

100K

R49

C53

R53

6.8K

C52

820P

4

3.9K

R58

6

5

3.9K

R57

C56

100P

R60

7

6.8K

C87

C86

6.8K

C55

100P

0.01

R55

3.9K 4.7K +

C61

47u10

R51

820P

3

2

8

C51

1

R59

R67

R69

22K

R64

2.2K C58

R62

100K

1K

R68

R61

100K

1K

R66

1K

470P

C60 470P

C59

2.2K

R63 C57

1K

R65

+

Q23,24

R92 100

R91 100

0.1

C76

24K

36K

R32

R34

470P

C32

10u16

+

C34

24K

R36

C36

100P

10u16

34

21+

C38

24K

36K

470P

C31

R33

+

10u16

24K

R35

100P

C35

R31 C33

10u16

6

8

57+

C37

R40

C46

10u16

+

1.2K

R42

100K

2

3

C88

100P

10u16

C45

R39

C84

0.01

+

100K

1.2K

R41

6

5

15K4

C50

100P

R44

1C48

+

10u16

+

100P

C49

15K

R43

7

810u16

C47

R46

1

2

1000P

+

C82

C41 10u16

C43 0.01

100P

220

C85

100

C44 0.01

C42 10u16

+

9

10

11

12

13

14

15

16

8

7

6

5

4

3

2

1

RSTN

ADRS1

ADRS2

DVDD

LOUT

LIN

AVDD

VRL

MDT

MCK

MLEN

DVSS

ROUT

RIN

AVSS

VRR

0.01

C83

VCC

GND

114

2

3

4

5

6

7

13

12

11

10

9

8

38

37

38

100

R129

25

30

29

26

28

OUTPUT

ANALOG

100

23

95

75

92

12

19

27

19

27

19

8

75

12

1K

R45

0.01

C80

100P

C81

+7.5V

+7.5VA+5VA+5V

+5V

+5V +5V

+5V +5V +5V

A+5VA+5VA+5VA+5VA+5V

A+5V

A+5VA+5V

A+5V

A+5V A+5V A+5V

A+5VA+5V

A+5V

+5V

+5V+5V

+5V+5V +5V

+5V +5V

+5V

+3.3V +3.3V

+3.3V+3.3V

+3.3V +3.3V

+3.3V+3.3V

+3.3V

9.5V9.5V

u+5Vu+5V

u+5V

u+5V u+5V

u+5V

u+5Vu+5V

u+5V u+5V u+5V

u+5V

u+5V u+5V

u+5V

+3.3V

A+5V

+5V

+5V+5V

+5V

5V5V

5V

5V5V5V5V5V5V

5V

5V 5V

5V

10K

R122

R128 100

R130 100

47K

R105

560

R28

R10

390

INPUT 1.2V/3.3K

0.3V/47K

IC11

(X25-6240-XX) (A/3)

A1

A2

IC7

IC10

A

J3

CN4

MD u-COM

CONTROL

SYSTEM D23

D21

D22

Q27

ON/OFF

BACKUP

D20

D19

IC4

Q7 Q6

Q3

Q4

Q13

Q14

5V AVR

-5V AVR

D3

OPTICAL

DIGITAL IN

IC9(2/2)

IC9(1/2)

Q23

Q24

Q21

MUTE

DRIVE

AMP

IC6(1/2)

AMP

IC6(2/2) IC8(2/2)

AMP

IC8(1/2)

ELECTRIC

VOLUME

3V

CE LEVEL

DIGITAL IN,

5V

Lch 1

Lch 4

Rch 2

Rch 3

OUTPUT

INPUT

J1

D14

DIGITAL IN

1/2

X33-

CN1

1

2

3.3V

4.7V

5.0V

3.3V

4.8V

3.3V

4.8V

5.0V

-5.4V

0V

-5.4V

0V

5.0V

-5.4V

5.0V

-5.4V

2.5V

5.0V

2.5V

5.0V 5.0V

2.5V

5.0V

0V

5.0V

-5.4V

0V

5.0V

0V

5.0V

1.2V

1.7V

3.3V

0V

5.0V

0V

0.2V

5.0V

1.7V

5.0V 5.0V

4.7V

0V

5.0V

2.2V

2.4V

0V

5.0V

0V

5.0V

0.8V

5.0V

0V

5.0V

2.6V

5.0V

1.1V

0V

5.0V

0V

5.0V

0V

5.0V

5.0V 7.5V

7.5V5.1V

5.8V

6.9V

4.8V 4.8V

4.2V

-0.6V

-5.4V

-6.0V

-5.4V

3.2V

DM-VH7(K)SD2P( 99.10.293:20PM y[W 2

w

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3

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3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

NC

VSS

NC

A0

D0

D1

D2

D3

D4

D5

D6

D7

CS2

LAT

IRQ0

RD

WR

CS1

NC

AN2

AN1

AN0

AVSS

MD0

MD1

XTAL

VSS

STBY

VCC

FL-RST

SCK

DATA-IN

DATA-OUT

NC

VCC

NC

AVCC

AN7

AN6

AN5

AN4

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

NC

CS1

RES

A0

WR(R/W)

RD(E)

D0

D1

D2

D3

D4

D5

D6

D7

VDD

VSS

VOUT(-10V)

CAP3-

CAP1+

CAP1-

CAP2-

CAP2+

V1

V2

V3

V4

V5

VR

IRQ

NC

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

REM

DISP-RST

EJECT

SCK

REC

DATA-IN

STANDBY

DATA-OUT

KR0

LAT

GND

KR1

U+5V

-10V

+5V

B.L.+5V

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

2

B.L.+5V

B.L.GND

21

B.L.+5V

B.L.GND

AN3

EXTAL

47K

R170 100

R171 100

R172 100

R173 100

R174 100

R175 100

R176 100

R177 100

52

60

62

61

55

56

54

53

51

50

49

R169 100

3

2

1

100K

R166

X2

16MHz

NMI

C153 0.01

100

R146

R168 10K

0.1

C116

58

48

62

48

61

60

49

50

51

52

53

54

55

56

C155 0.47

C156 0.47

C157 0.47

C158 0.47

0.47

33K

R180 150K

R179

C159

30K

R151R152

10K

R153

5.1K

R154

3K

R155

2K

5

R156

10K

R157

5.1K

R158

3K

R159

2K

8

430

R161

(RED)

430

(RED)

R162

R163

68

(BLU)

10

12

14

RES

3

IRQ

29

NC

30

VR

V5

2827

V2

V4

V3

24 2625

CAP2+

V1

2322

CAP1-

CAP1+

CAP2-

2019 21

VOUT(-10V)

VSS

16

CAP3-

1817

VDD

D7

1514

D4

D6

D5

11 1312

D3

D2

109

RD(E)

D0

76

D1

8

WR(R/W)

A0

54

CS1

NC

21

+

1000u25

C21

1K

R19

1000u25

C22

+

3300u25

C3

+

0.082

C1

0.082

C2

470

R21

100

R22

750

R23

820

R24

10u16

C23

+

470

R2

470P

C8

L2

82uH

L3

22uH

330

R4

1K

R5

1000u10

C9

+

C7 1000u10

+

1W

2W

4

5

+5V 3

GND

REM

1

2

0.01

C160 47K

R181

3

2

1

3

1

2

U+5V

REM

GND

14

12

10

8

5

R145 100

R143 220

R144 220

3

2

1

58

470P

C115

C114 470P

20

21

24

7

80

6

78

5

89

4

90

47K

R142

1K

R141

22

+

0.33F5.5

C69

95

25

92

GND

100K

R76

10u16

C74

1u50

C73

R78

10K

R77

1K

R74

R75

10K

OUT

+IN

1K

100u10

C101

++

3K

R79

22

2W

R80

10K

R6

12

10u50

C71

4.7K

R72

4.7K

R73

+

330

R1

1923

6800P

22

2

C30

1STAC

2

11

5

4

3

1STAC

2ND AC

3

5

4

AC 120V (K)

AC 100V (J)

10K

R150

10K

R160

0.01

C151

+

47u6.3

C152

Q31-33

0.1

C154

R164

UNIT No.

0-11

DESTINATION

COUNTRY

U.S.A.

ABB.

KNO

R100

JAPAN 0-00

JYES

YES

R101

NO

+15.4V+15.4V

+15.4V +15.4V

+7.5V

u+5V

+5V +5V

13.7V13.7V

9.5V 9.5V 9.5V

9.5V

u+5V

u+5V u+5V

u+5V

9.5V9.5V

9.5V

u+5V

u+5Vu+5V

u+5V

B.L.+5V

B.L.+5VB.L.+5V

+5V+5V +5V

+5V

+5V+5V

+5V

+5V +5V +5V

+5V

+5V +5V

+5V

u+5V

9.5V

0.1

C4

(K)

(J)

(T,E) : AC120V 60Hz

: AC100V 50/60Hz

: AC230V~ 50Hz

EUROPE E

TU.K.

JAPAN J2

NO

YES

J4

IC12

(X25-) (B/3)

A3

(X25-) (C/3)

(X25-6240-XX) (A/3)

LCD DISPLAY ASS’Y (B30-0180-

DM-VH7(J,K) (2/2)

5)

(BOTTOM VIEW)

CN7

CN5 CN6

CN8

XY-SW

S20

u-COM

DISPLAY

EJECT

O.T.E

LEV.UP

MODE

1/

ON/STANDBY

LEV.DWN

REC

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

D24

STANDBY Q31

REC

D25 Q32

EJECT

D26 Q33

D1

D13D11D12

Q9

Q8

Q1

Q5

Q12

Q11

-9.5V AVR

D30

D2

SWITCHING

+7.5V

Q2

Q10

SENSOR

REMOTE WH1

E2 E1

IC4 : BA17805T or

UPC7805AHF

IC5 : PST993D-T

IC6,8,9 : NJM4565M

IC7 : SM6451AV

IC10 : HD74LVC08T

IC11 : M30620MC-340FP

IC12 : HD6433297A17F

Q1 : 2SB1143(S,T)

Q2,10,27,31,32 : UN5212 or

DTC124EUA

Q3,11,13,29 : 2SA1611(M5,M6) or

2SA1586(Y,GR)

Q4,17 : 2SD2061 or

2SD2012

Q5 : 2SK246(Y)

Q6-9,16 : 2SC4177(L5,L6) or

2SC4116(Y,GR)

Q12,14 : 2SA1534A(R,S)

Q21 : UN5119 or

DTA113ZUA

Q23,24 : 2SD1450(S,T)

Q28 : UN5112 or

DTA124EUA

Q33 : UN5216 or

DTC143TUA

D1 : D2SBA20F03

D2 : D2L20U

D3 : UDZ4.7B

D4,5,11-13 : S5688B(TPB5)

D7,9,14,21,22 : MA111

D10,30 : UDZ5.6B

D19,20,23 : DA204U

D24,25 : B30-2545-05

D26 : B30-2551-05

Q29

LIGHT

LCD

BACK

ON/OFF

Q28

ON/OFF

BACKUP

D9

D10

RESET

Q16

IC5

RESET IC 5V AVR

Q17

D5

D4

D7

J4

CN1

CN2

DRIVE

LED

(X25-624X-XX) (A/3)

3.2V

5.1V

5.0V

4.3V

5.0V

0V

-0.6V

-9.6V

-10.2V

-12.8V-9.5V

5.7V

5.0V

7.6V

5.0V

0V

4.3V

7.6V

5.0V

14.0V

14.6V

4.3V

0V

5.0V

4.7V 4.7V

5.0V

5.6V

13.6V

4.1V

0V

4.1V

0V

0.2V

1.6V

5.1V

0V

5.1V

2.2V

1.8V

5.1V 5.1V 5.0V

5.0V

0.7V

5.0V

5.1V

5.0V

5.1V

1.1V

5.1V

1.2V

1.1V

0.4V

B

+B

DIGITAL LINE

GND LINE

SIGNAL LINE

B LINE

AJ AL AN AP ARAK AM AO AQ AS

Y22-8050-11 DM-VH7

CAUTION: For continued safety, replace

safety critical components only with manu-

facturer's recommended parts (refer to parts

list). indicates safety critical components.

For continued protection against risk of fire,

replace only with same type and rating

fuse(s). To reduce the risk of electric shock,

leakage-current or resistance measurements

shall be carried out (exposed parts are

acceptably insulated from the supply circuit)

before the appliance is returned to the cus-

tomer.

The DC voltage is an actual reading mea-

sured with a high impedance type voltmeter.

The measurement value may vary depend-

ing on the measuring instruments used or on

the product. Refer to the voltage during

RECORDABLE MD PLAY unless otherwise

specified; The value shown in ( ) is the volt-

age measured at the moment of STOP. The

voltage followed by (REC) refers to the value

during MD RECORDING.

DM-VH7(K)SD2P( 99.10.293:20PM y[W 1

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6

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1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

Parts with exploded numbers larger than 700 are not supplied.

MDM-06

X29 (A/2)

X29 (B/2)

X33-1190-00

A

B

C

D

E

F

G

M2x3.5

ø2.6x10

ø2x6

M1.7x2

M2x4

M1.7x3

M1.7x4.5

:

N86-2004-46

N09-2817-05

N09-4154-05

N09-3104-05

N09-3500-05

N09-3279-05

N39-1745-46

A

G

C

F

C

EE

C

Ax2

Bx2

Gx2

Cx2

Bx2

Dx2

C

D

A

D

C

D

RH

49

32

12

54

PU

15

1

7

34

11

29

LM

30

26

14 28

6

16

18

46

33

9

57

58

DM 2

50

38

FM

19 61 31

20

10

27

58

3

36

8

47

13 39 23

35

5

22

39

25

37

59

33

17

24

60

421

1

2

3

AB

25

DM-VH7

EXPLODED VIEW (MD MECHANISM)

1p 99.10.293:46PM y[W 8

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6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

A 1

OPTICAL

DIGITAL IN OPTICAL

DIGITAL IN OUTPUT

INPUT/ (J ONLY)

AC OUTLET

A 2 CONTROL

SYSTEM

J 1 J 3 J 4

S 2 S 3

S 1

EJECT

S11

REC S10

S 4 S 5

S 9 STOP

S 8

O.T.E. FF

FB

UP

DOWN

PLAY/PAUSE S 6

MODE

S 7

ON/STANDBY

E

647

602

E

Dx2

A

X25 (C/3)

X25 (B/3)

X28-6240 (A/3)

A

D

F

B

F

A

D

Cx2 C

C

D

C

CCC

C

Bx2

Gx2

A

C

F

E

A

B

C

D

E

F

G

: N82-2608-46

: N86-3008-46

: N89-3008-45

: N89-3008-46

: N95-3006-45

: N09-1445-05

: N09-1729-05

ø2x8

M3x8

ø3x8 (BLK)

ø3x8

ø3x8(BLK)

ø3x6(BLK)

ø4x8

DM-VH7

CC

Dx2

D

771

670

603

660

606

616 639

617 637

635

609 621

618 633 (16P)

637

665

638 638

638

725

756

705

704

755

735

775

714

661

619

608 636 612

607

613

620

645

630

631

615 649

650

649

611

601

610

646

633

(16P)

632

654

634

(26P)

615

651

1

2

CE

D

Parts with exploded numbers larger than 700 are not supplied.

26

DM-VH7

EXPLODED VIEW (UNIT)

1p 99.10.293:46PM y[W 9

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

Kenwood DM-VH7 User manual

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