JVC DRED-400-SE-2, DRMH-300-BEK-2, DRMH-300-BE-2, DRMH-300-SE-2, DRMH-300-SEK-2 Service manual

SERVICE MANUAL

HDD&DVD VIDEO RECORDER

YD089B20062

DR-MH300BE2, DR-MH300BEK2,

DR-MH300SE2, DR-MH300SEK2,

DR-ED400SE2

Only ver.E,EK

TM

HDD DVD

STANDBY/ON

Since the whole mechanism assembly unit is replaced, the DVD recorder
mechanism of this unit need not be adjusted.

This model is a model to whom the DVD drive unit and some parts are
changed based on DR-MH300B,DR-MH300S,DR-ED400S.
Please see page 3 about details and the distinction method.
For details other than those described in this manual, please refer to the
DR-MH300B,DR-MH300S,DR-ED400S service manual (Issue No.YD089 2005/12).

Only ver.EK

Only ver.E

RAM/RW

DR-MH300BE2, DR-MH300BEK2, DR-MH300SE2,

DR-MH300SEK2, DR-ED400SE2 [D5HR10]

NAVIGATION

ENTER

GUIDE

Area Suffix

E ------- Continental Europe
Northern Europe
EK ------------------------ U.K.

TM

PR

PUSH-OPEN

PR

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

COPYRIGHT © 2006 Victor Company of Japan, Limited

No.YD089B

2006/2

SPECIFICATION

GENERAL

Power requirement AC 220 V - 240 V~, 50 Hz/60 Hz

Power consumption Power on : 36 W

Temperature Operating : 5°C to 35°C

Operating position Horizontal only

Dimensions (W × H × D) 435 mm × 70 mm × 300 mm

Weight 4.6 kg

VIDEO/AUDIO (DVD Deck)

Recordable disc DVD-RAM 12 cm (4.7 GB/9.4 GB*1),DVD-RAM 8 cm (1.4 GB/2.8 GB*2),DVD-R 12 cm (4.7 GB),DVD-R 8 cm (1.4 GB),DVD-

Recording format DVD-RAM : DVD Video Recording format

Recording time

Audio recording system Dolby Digital (2 ch)

Video recording compression system

VIDEO/AUDIO (HDD Deck)

Capacity 160 GB

Recording time (DV) : Approx. 11 hours,(XP) : Approx. 34 hours,(SP) : Approx. 69 hours,(LP) : Approx. 138 hours,

Audio recording system

Video recording compression system

Input/Output

21-pin SCART connectors

S-video input Y:1.0 Vp-p,75 ohms

Video input 1.0 Vp-p, 75 ohms (pin jack)
Audio input 2 Vrms (pin jack)

i.Link 4-pin for DV Input/Output

Component video output Y : 1.0 Vp-p, 75 ohms

HDMI output 19-pin, Corresponding to HDCP

Digital audio output Coaxial

G-LINK 3.5 mm Jack

TUNER/TIMER

Tuning system Frequency synthesised tuner

Signal system PAL/SECAM colour signal, 625 lines/50 fields

TV channel storage capacity

Channel coverage(SECAM-L) - -

Channel coverage(PAL) VHF : 47 MHz - 89 MHz/

Memory backup time Approx. 10 minutes.

E.& O.E. Design and specifications subject to change without notice.

• Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

• “DTS” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.

• This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protec­tion technology must be authorized by Macrovision. Reverse engineering or disassembly is prohibited.

• GUIDE Plus+, SHOWVIEW,VIDEO Plus+, G-LINK are (1) registered trademarks or trademarks of, (2) manufactured under license from and (3) subject of
various international patents and patent applications owned by, or licensed to, Gemstar-TV Guide International, Inc. and/or its related affiliates.

• GEMSTAR-TV GUIDE INTERNATIONAL, INC. AND/OR ITS RELATED AFFILIATES ARE NOT IN ANY WAY LIABLE FOR THE ACCURACY OF THE PRO­GRAM SCHEDULE INFORMATION PROVIDED BY THE GUIDE PLUS+ SYSTEM. IN NO EVENT SHALL GEMSTAR-TV GUIDE INTERNATIONAL, INC.
AND /OR ITS RELATED AFFILIATES BE LIABLE FOR ANY AMOUNTS REPRESENTING LOSS OF PROFITS, LOSS OF BUSINESS, OR INDIRECT, SPE­CIAL, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE PROVISION OR USE OF ANY INFORMATION, EQUIPMENT, OR SERVICES RE­LATING TO THE GUIDE PLUS+ SYSTEM.

• i-LINK is a trademark of Sony Corp .

• HDMI is a trademark of HDMI Licensing, LLC .

DR-MH300BE2,DR-MH300SE2,DR-ED400SE2

Power off : 6.4 W

Storage : -20°C to 60°C

RW 12 cm (4.7 GB),DVD-RW 8 cm (1.4 GB)
*1 9.4 GB double-sided discs
*2 2.8 GB double-sided discs

DVD-R : DVD Video format, DVD Video Recording format
DVD-RW : DVD Video format, DVD Video Recording format
Maximum 8 hours (with 4.7 GB disc)

(XP) : Approx. 1 hour, (SP) : Approx. 2 hours, (LP) : Approx. 4 hours, (EP) : Approx. 6 hours, (FR) : Approx. 1 hour - 8 hours

Linear PCM (XP mode only)
MPEG2 (CBR/VBR)

(EP) : Approx. 209 hours,(FR480) : Approx. 300 hours
Dolby Digital (2 ch)
Linear PCM (XP mode only)
MPEG2 (VBR)

IN/OUT X 1, IN/DECODER X 1

C : 0.3Vp-p, 75 ohms

PB/PR: 0.7 Vp-p, 75 ohms
Corresponding to copy protection

Video : 576i/576p/1080i/720p
Audio : 2 ch PCM/Bitstream

Corresponding to Dolby Digital and DTS Digital Surround,
Bit stream
Selectable in digital audio output setting menu

99 positions (+AUX position)

104 MHz - 300 MHz/
302 MHz - 470 MHz
UHF : 470MHz - 862MHz

PAL colour signal,625 lines/50 fields

VHF : 44.5MHz - 143MHz/
143MHz - 470MHz/
UHF : 470MHz - 862MHz

DR-MH300BEK2,DR-MH300SEK2

1-2 (No.YD089B)

About this service manual

This model is a model to whom the DVD drive unit and some parts are changed based
on DR-MH300BE,DR-MH300BEK,DR-MH300SE,DR-MH300SEK,DR-ED400SE.
Since the way of recognizing is explained below, in the case of DR-MH300BE2,
DR-MH300BEK2,DR-MH300SE2,DR-MH300SEK2,DR-ED400SE2, please use this manual.
In the case of DR-MH300BE,DR-MH300BEK,DR-MH300SE,DR-MH300SEK,DR-ED400SE,
please refer to another service manual (No.YD089 2006/2).

HOW TO IDENTIFY MODELS

How to recognize from the appearance of the model concerned is written below.
Please distinguish from several contents currently printed on the rating label of the left side on main body.

BLANK : DR-MH300BE,DR-MH300BEK,DR-MH300SE,DR-MH300SEK,DR-ED400SE

2 : DR-MH300BE2,DR-MH300BEK2,DR-MH300SE2,DR-MH300SEK2,DR-ED400SE2

DVD VIDEO RECORDER

MODEL NO.

S, NO.

MADE IN

2

The surface of
a top cover

(No.YD089B)1-3

SECTION 1

PRECAUTION

Please refer to "DR-MH300BE, DR-MH300BEK,DR-MH300SE,DR-MH300SEF,DR­MH300SEK, DR-MH300SER,DR-ED400SE (issue number : YD089)" about this sec-

tion.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-4 (No.YD089B)

SECTION 3

TOP COVER

Hook b

DISASSEMBLY

3.1 Main body section

3.1.1 Remove the top cover (See figure 1)

(1) Remove the four screws A attaching the top cover on both

sides of the main body.

(2) Remove the five screws B attaching the top cover on the

back of the main body.

(3) Raise the both sides and lower part of the rear of the top

cover, with opening them slightly in an outward direction.
And the top cover will be removed.

3.1.2 Remove the front panel assembly and HDD (See figure 2, figure 3, figure 4)

• Prior to performing the following procedure, remove the top
cover.

• There is no need to remove the drive unit.
(1) Remove the five screws C attaching the HDD and bracket.
(2) Disconnect the card wire from connector CN2201

digital board.

(3) Disconnect the socket wire from connector CN5304

main board.
(4) Disconnect the card wire from connector on the HDD.
(5) Disconnect the card wire from connector CN4001

main board.
(6) Disconnect the card wires from connector CN7002

CN7003 on the display board.

(7) Remove the two screws D attaching the front panel assem-

bly.
(8) Hooks a and b are removed respectively, and the front

panel assembly is removed.

CN2201

HDD

C

Main boardBracket

C

on the

on the

on the

,

A x 2

CN4001

A x 2

CN7002

TOP COVER

TOP COVER

B

Fig.1

Main board

Fig.3

B

CN7003

D

B

B

B

Hook a

C

C

Connector

Front panel assembly

D

Hook b

C

Fig.2

CN5304

Hook a

Fig.4

(No.YD089B)1-5

3.1.3 Remove the drive unit (See figure 5)

• Prior to performing the following procedure, remove the top
cover.

• There is no need to remove the front panel assembly.
(1) Disconnect the socket wire from connector CN5302 on the

main board.

(2) Disconnect the card wire from connector CN2201

on the

digital board.

(3) Remove the five screws E attaching the drive unit and

bracket.

E

Drive unit

Bracket

E

CN5302

CN2201

3.1.4 Remove the HDMI board and digital board (See figure 6, figure 7)

• Prior to performing the following procedure, remove the top
cover and HDD.
(1) Disconnect the socket wire from connector CN2404

on the

HDMI board.

Digital board

CN2401

(2) Remove the three screws F attaching the HDMI board.
(3) Remove the two screws G (G1, G2) attaching the HDMI

board from rear side.

(4) Disconnect the connector from CN2401

on the HDMI board

from digital board.

(5) Disconnect the card wire from connector CN1103 on the

digital board.

(6) Disconnect the socket wire from connector CN1101

CN1102, CN1801 on the digital board.

(7) Remove the four screws H attaching the digital board.

,

H

F

F

CN2404

HDMI board

CN1103

CN1801

HH

F

E

Main board

CN1101

H

Rear panel

E

Fig.5

CN1102

Fig.6

1-6 (No.YD089B)

G2G1
Torque
Please note tightening too much.

G1 --- 0.784 N-m +- 0.078N-m ( 8.0 kgf-cm +- 0.8 kgf-cm )
G2 --- 0.25 N-m ~ 0.35N-m ( 2.6 kgf-cm ~ 3.6 kgf-cm )

Fig.7

3.1.5 Remove the main board (See figure 8, figure 9)

• Prior to performing the following procedure, remove the top
cover, drive unit, HDD.
(1) Disconnect the card wire from connector CN4103

on the main board.

(2) Disconnect the socket wire from connector CN1101

CN1102

(3) Disconnect the socket wire from connector CN3004,

CN5303

(4) Disconnect the power cord from connector CN5001

main board.
(5) Remove the six screws I attaching the main board.
(6) Remove the seven screws J attaching the rear panel with

main board.
(7) Remove the one screw K attaching the tuner.

, CN7001 on the digital board and display board.

on the main board.

, CN4001

on the

CN1101

CN1102

CN4001

,

Display board

I

CN7001

CN3004

I

I

I

I

3.1.6 Remove the display board (See figure 10)

• Prior to performing the following procedure, remove the top
cover, drive unit, HDD, front panel assembly.
(1) Disconnect the socket wire from connector CN7001 on the

display board.

(2) Remove the two screws L attaching the display board.

Digital board

CN4103

L

I

CN7001

Main board

Fig.8

Fig.9

Display board

Fig.10

CN5303

JJ Rear panelK

CN5001

L

(No.YD089B)1-7

3.2 DVD Drive unit section

3.2.1 Remove the top cover and tray (See figure 1, figure2, figure3, figure4)

(1) The part a on the reverse side of a DVD drive unit is made

to slide in the direction of an arrow. (A tray ejects a few.)
(2) Remove the four screws A attaching the top cover.
(3) Hooks b are removed, and the top cover is removed.
(4) The tray is drawn out forward.
(5) Remove the two screws B attaching the shaft guide, and

hook c is removed.
(6) It draws it out while lifting the tray in the direction of the ar-

row.

A

Part a

Hook b

A

A

Fig.2

Top cover

A

Hook b

Fig.1

Hook c

B

Fig.3

Shaft guide

B

Tray

1-8 (No.YD089B)

Fig.4

3.2.2 Reassembly the tray (See figure 5)

(1) The slide cam is done in the slide in the direction of the ar-

row.

(2) The shaft guide is done in the slide in the direction in the

back.

(3) The left side of the tray is inserted in the rail of the loading

base, and the shaft guide is built in.

(4) Please push the tray, and confirm whether the tray is nor-

mally good to the close position at the slide by manual.

3.2.3 Remove the traverse mechanism assembly (See figure 6, figure 7)

• Prior to performing the following procedure, remove the top
cover, tray.
(1) Disconnect the FFC wire from connector on the pick-up

unit.

ATTENTION:

The laser diode of "pick-up" might be destroyed by static
electricity. Please work after installing the wristband. In
addition, please do not touch in each part, the terminal,
and the laser diode terminal on the substrate of the pick­up unit. Never

(2) Disconnect the FFC wire from connector CN103

on the servo control board.

(3) Remove the four screws C attaching the traverse mecha-

nism assembly.

, CN104

CN105

Shaft guide

Slide cam

Fig.5

Servo control board

CN103

C

Traverse mechanism assembly

C

C

Hook d Hook d

CN102

CN104

D D

Fig.7

Pick-up unitConnector

Fig.6

(No.YD089B)1-9

3.2.4 Remove the servo control board (See figure 7)

(1) Disconnect the FFC wire from connector CN102

, CN105 on the servo control board.

CN104

(2) Remove the two screws D attaching the servo control

board.

(3) Hooks d is removed, and the servo control board is re-

moved.

3.2.5 Remove the loading motor (See figure 8, figure 9)

• Prior to performing the following procedure, remove the top
cover, tray.
(1) Remove the solder part e soldered on the switch board.
(2) A belt is removed.
(3) Remove the two screws E attaching the loading motor.

, CN103,

Loading

motor

Part e

Switch board

Fig.8

1-10 (No.YD089B)

E

Belt

Fig.9

SECTION 4

ADJUSTMENT

4.1 Timer clock adjustment (for only ver.E)

If an error comes to arise for a clock, the following procedure will adjust.

Signal (A1) No signal

Mode (B) EE

Equipment (C) Frequency counter

Measuring point (D1)

Adjustment part (F) C3033 (TIMER CLOCK)

Specified value (G1) 1024.008 ±0.001 Hz

(1) Connect the frequency counter to the measuring point (D1).
(2) Connect the short wire between the short point (D2) and Vcc (5V).
(3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the system controller.
(4) Disconnect the short wire between the short point (D2) and Vcc then connect it again.
(5) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G).

IC3001 pin 29

(D2)

IC3001 pin 83

(D3)

C3021 + and -

(976.5549 ±0.0010 usec)

(No.YD089B)1-11

SECTION 5

TROUBLESHOOTING

5.1 JIG Mode

Please refer to "DR-MH300BE, DR-MH300BEK,DR-MH300SE,DR-MH300SEF,DR-MH300SEK, DR-MH300SER,DR-ED400SE
(issue number : YD089)" about this section.

5.2 Displaying SYSTEM INFO

Please refer to "DR-MH300BE, DR-MH300BEK,DR-MH300SE,DR-MH300SEF,DR-MH300SEK, DR-MH300SER,DR-ED400SE
(issue number : YD089)" about this section.

5.3 Updating the firmware of the main body

Please refer to "DR-MH300BE, DR-MH300BEK,DR-MH300SE,DR-MH300SEF,DR-MH300SEK, DR-MH300SER,DR-ED400SE
(issue number : YD089)" about this section.

5.4 Updating the firmware of the drive unit

Please refer to "DR-MH300BE, DR-MH300BEK,DR-MH300SE,DR-MH300SEF,DR-MH300SEK, DR-MH300SER,DR-ED400SE
(issue number : YD089)" about this section.

5.5 Taking out a disc

< Method 1 >

There is a forced tray eject mode with electrical operation.
(1) Right after plugging in the power code (while “PLEASE” and “WAIT” blink alternately and it is displayed), keep pressing the

OPEN/CLOSE button of the main body.
(2) Remove the disc as the tray is ejected in a short while.
(3) The tray closes automatically at about five seconds.

< Method 2 >

When < Method 1 > can not remove the disc, the tray can be ejected mechanically without turning the power on.

(1) The DVD drive unit is detached from the main body.
(2) The part a on the reverse side of a drive unit is made to slide in the direction of an arrow with a screw driver etc.
(3) As the tray ejects a little, pull out the tray manually.

Part a

1-12 (No.YD089B)