JVC DR-MH20SE, DR-MH20SEK, DR-MH20SEF, DR-MH30SE, DR-MH30SEK Diagram
...
SERVICE MANUAL
DVD&HDD VIDEO RECORDER
YD02720049
DR-MH20SE, DR-MH20SEK, DR-MH20SEF
DR-MH30SE, DR-MH30SEK
DR-MH30SEF, DR-MH30SER
Area Suffix
EK ------------------------ U.K.
EF --------------------- France
ER ---- Russian Federation
E ------- Continental Europe
Northern Europe
OPEN/
CLOSE
TV AV
TV/CBL/SAT
VIDEO
HDD DVD
AUX
CANCEL
MEMO/MARK
EDIT
DUBBING
LIVE
TV
ENTER
MENU
CLEAR
STOP/
JUMP
REC MODE
DISPLAY
ON SCREEN
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
CABLE/SAT
STANDBY ON
TV
PROGRAMME
NAVIGATIONTOP MENU
RETURN
NEXTPREVIOUS
SLOWSLOW PLAY/SELECT
PAUSEREC
PROGRESSIVE
Only ver.EK
DVDTV
DVD
PR
HELP
STANDBY/ON
SCAN
Only ver.E,EF,ER
VIDEO
F1
S-VIDEO VIDEO
Only ver.ER
L(MONO)-AUDIO-R
DV
HDD DVD
DV IN
PULL - OPEN
DR-MH20SE, DR-MH20SEK, DR-MH20SEF [D4HR20]
DR-MH30SE, DR-MH30SEK, DR-MH30SEF, DR-MH30SER [D4HR25]
Since the whole mechanism assembly unit is replaced, the DVD recorder
mechanism of this unit need not be adjusted.
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.YD027
2004/9
SPECIFICATION
GENERAL
Power requirement AC 220 V - 240 V~, 50 Hz/60 Hz
Power consumption Power on : 37 W
Temperature Operating : 5°C to 40°C
Operating position Horizontal only
Dimensions (W × H × D) 435 mm × 70 mm × 345.5 mm
Weight 6.1 kg
Input/Output
Component video output Y : 1.0 Vp-p, 75 ohms
VIDEO/AUDIO (DVD Deck)
Audio recording system Dolby Digital (2 ch)
Video recording compression system
VIDEO/AUDIO (HDD Deck)
Video recording compression system
Audio recording system Dolby Digital (2 ch)
TUNER/TIMER
TV channel storage capacity
Channel coverage(PAL) VHF(LOW): 47 MHz-89 MHz
ACCESSORIES
E.& O.E. Design and specifications subject to change without notice.
• Manufactured under licence from Dolby Laboratories. “Dolby” and double-D symbol are trademarks of Dolby Laboratories.
• “DTS” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.
• SHOWVIEW is a registered trademark of Gemstar Development Corporation. The SHOWVIEW system is manufactured under licence from Gemstar
Development Corporation.
• This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property
rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision
Corporation, and is intended for home and other limited viewing users only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.
• VIDEO Plus+ and PlusCode are registered trademarks of Gemstar Development Corporation. The VIDEO Plus+ system is manufactured under license from Gemstar Development Corporation.
S-video input Y:0.8-1.2 Vp-p, 75 ohms
S-video output Y : 1.0 Vp-p, 75 ohms
Video input 0.5- 2.0 Vp-p, 75 ohms (pin jack)
Audio input -8 dB, 50 kilohms (pin jack)
Audio output -8 dB, 1 kilohms (pin jack)
Digital audio output Optical: -18 dBm, 660 nm
RCA connectors IN x 1, OUT x 1
Recording time
Recording time
Signal system PAL-type colour signal and CCIR monochrome signal, 625 lines 50 fields
Tuning system Frequency synthesized tuner
Channel coverage
(SECAM-L)
Memory backup time Approx. 60 seconds
Provided accessories
DR-MH20SE,DR-MH30SE,DR-MH30SER
Power off : 19.3 W
Storage : -20°C to 60°C
C : 0.2 -0.4 Vp-p, 75 ohms
C : 0.3 Vp-p, 75 ohms
Corresponding to mono (left)
i.Link 4-pin for DV input
CB/CR, PB/PR: 0.7 Vp-p, 75 ohms
Corresponding to copy protection
Coaxial: 0.7 Vp-p, 75 ohms
Corresponding to Dolby Digital and DTS Digital Surround Bit stream
Selectable in digital audio output setting menu
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)
MPEG2 (VBR)
Linear PCM (XP mode only)
Maximum 204 hours
(XP): Approx. 34 hours,(SP): Approx. 68 hours,(LP): Approx. 136 hours,(EP): Approx. 204 hours,(FR480): Approx. 272 hours
99 positions (+AUX position)
-
VHF(HIGH):104 MHz -300 MHz
Hyper:302 MHz-470 MHz
UHF 470 MHz-862 MHz
RF cable,21-pin SCART cable,Satellite Controller,Infrared remote control unit,”R6” battery x 2
DR-MH20SEK,DR-MH30SEK DR-MH20SEF,DR-MH30SEF
-
VHF(LOW):49 MHz-65 MHz(2-4)
VHF(HIGH):104 MHz-300 MHz(5-10CATV)
Hyper:300 MHz-470 MHz(CATV)
UHF:470 MHz-862 MHz(21-69)
VHF(LOW):44.5 MHz-143 MHz
VHF(HIGH):143 MHz-470 MHz
UHF: 470 MHz-862 MHz
RF cable,21-pin SCART cable,Satellite Controller,Infrared remote control unit,”AA” battery x 2
VHF(LOW):47 MHz-89 MHz
(E2-E4,X,Y,Z)
VHF(HIGH):104 MHz-300 MHz
(E5-E12,S1-S20,M1-M10,U1-U10)
Hyper:302 MHz-470 MHz(S21-S41)
UHF:470 MHz-862 MHz(E21-E69)
RF cable,21-pin SCART cable,Satellite Control-
ler,Infrared remote control unit,”R6” battery x 2
1-2 (No.YD027)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purposes. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Services should be performed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety characteristics as the recommended replacement parts shown in
the Parts List of Service Manual may create shock, fire, or
other hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassembling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads,
headphone jack, control shafts, etc.) to be sure the product
is safe to operate without danger of electrical shock.Do not
use a line isolation transformer during this check.
• Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).
• Alternate check method
Plug the AC line cord directly into the AC outlet. Use an
AC voltmeter having, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-
posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
0.15 F AC TYPE
Place this
probe on
1500 10W
Good earth ground
1.2 Warning
(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that
these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant
safety standards.
(4) It is essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3 Caution
Burrs formed during molding may be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of preforming repair of this system.
1.4 Critical parts for safety
In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)
each exposed
metal part.
(No.YD027)1-3
1.5 Important for laser products
!
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The CD,MD and DVD player uses invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
REPRODUCTION AND POSITION OF LABEL and PRINT
WARNING LABEL and PRINT
On mechaism assembly
1-4 (No.YD027)
1.6 Hard Disk Drive (HDD) Handling Precautions
The HDD is a precision device for use in reading and writing a large amount of data on or from a disk rotating at a high speed. If it is
not handled carefully, either abnormal operation may result or it may not be possible to read data. The HDD is sensitive to the following
items and special care is required in safeguarding against them when handling an HDD. Also take care in handling a set incorporating
an HDD.
(1) Vibrations and impacts
(2) Static electricity
(3) Rough handling
1.6.1 Handling in transport, etc.
• Be sure to place the HDD in the manufacturer's specified package carton before transport.
• When receiving a package containing an HDD, check that the
package carton is not damaged (such as having holes in the
carton, crushed corners, etc.).
• Do not impact the packaging carton when loading or unloading
HDD
Do not throw or
drop packages.
it.
• It is not permitted to use the inner package carton only for
transporting an HDD.
• Do not stack package cartons one upon another.
Be sure to package and
transport the HDDs correctly.
1.6.2 Handling an HDD in the stand-alone status
• When handling an HDD on a hard workbench, place an antistatic mat (rubber sheet) or similar object on the hard surface
(to prevent any impacts occurring between the HDD and
bench).
• Do not stack the HDDs one upon another.
• Do not knock an HDD with a hard object (such as a screwdriver).
• Do not place an HDD on its side panel without using a support
(do not place an HDD in an unstable position).
1.6.3 Handling the installation of an HDD
• Place antistatic mats or similar sheets on all of the surfaces on which work is conducted or when the HDD is transported.
• Do not permit the HDD to knock against the set's brackets.
• When screwing the brackets, be careful not to knock the HDD. When using a power screwdriver, use a low-shock model and arrange
the tightening torque properly.
• When mounting an HDD in a main body, take care not to apply excessive force to the brackets.
(No.YD027)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-6 (No.YD027)
SECTION 3
TOP COVER
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.
A x 2
A x 2
TOP COVER
TOP COVER
B
Fig.1
B
B
B
B
(No.YD027)1-7
3.1.2 Remove the front panel assembly and HDD (See figure 2, figure 3, figure 4, and figure 5)
Hook b
• Prior to performing the following procedure, remove the top
cover.
CN3002CN4001
• There is no need to remove the drive unit.
(1) Remove the four screws C attaching the HDD.
(2) Disconnect the socket wire from connector CN5307
on the
switching regulator board.
(3) Disconnect the card wire from connector on the HDD.
(4) Disconnect the card wires from connector CN3001
CN3002
, CN4001 on the main board.
,
(5) Hooks a and b are removed respectively, and the front
panel assembly is removed.
NOTE:
In case of attach a front panel assembly, please let a card wire
pass in the hole in the front part of a chassis, respectively, and
connect.
C
Main board
Fig.3
Front panel
assembly
C
Front panel assembly
CN3001
Hook a
Switching
regulator board
CN5307
C
Fig.2
C
Hook b
HDDConnector
Hook a
Fig.4
Front part of a chassis
Card wire
Front panel
Card wire
assembly
Fig.5
1-8 (No.YD027)
3.1.3 Remove the drive unit (See figure 6)
• 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 CN5303
switching regulator board.
(2) Disconnect the card wire from connector CN2201
digital board.
(3) The tape which is fixing the card wire is removed two plac-
es.
(4) Remove the four screws D attaching the drive unit.
(5) Remove the one screw E attaching the lug wire.
on the
on the
Digital board
E
Drive unit Tape
D
D
3.1.4 Remove the digital board (See figure 7, figure 8)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from connector CN2201
on the digital board.
(2) Disconnect the socket wire from connector CN1003 on the
digital board.
(3) Remove the four screws F attaching the digital board.
(4) Lift the digital board up, and remove it. Then, the digital
board is removed from the connectors CN4101
on the main board and CN4104 on the jack board. In at-
taching the digital board, insert the connector on the digital
board in these connectors securely.
, CN2101
, CN4102
CN2101
Digital board
F
F
CN2101
Digital board
CN2201
D
F
F
CN4104
CN5303
Fig.6
CN2201
CN1003
Fig.7
Jack board
CN4102
D
Switching
regulator board
Main board
CN4101
Fig.8
(No.YD027)1-9
3.1.5 Remove the switching regulator board (See figure 9)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from connector CN5301 on the
switching regulator board.
(2) Disconnect the socket wire from connector CN5303
CN5305
board.
(3) Disconnect the power cord from connector CN5001
switching regulator board.
(4) Remove the two screws G attaching the switching regula-
tor board.
(5) Four spacers are removed.
, CN5306, CN5307 on the switching regulator
on the
CN5301
Spacer
CN5307
Spacer
Switching
regulator board
CN5303
Spacer
,
3.1.6 Remove the main board (See figure 10, figure 11)
• Prior to performing the following procedure, remove the top
cover, drive unit, digital board, switching regulator board, HDD.
(1) Disconnect the card wire from connector CN3001
CN3002, CN4001, CN7301 on the main board
(2) Remove the two screws H attaching the main board.
(3) Remove the seven screws I attaching the rear panel with
main board.
G
H
Main boardCN7301
CN5001
CN3001
CN5306
Spacer
CN4001
,
CN5305
Fig.9
CN3002
H
Fig.10
G
Power cord
Rear panel
1-10 (No.YD027)
I
Fig.11
SECTION 4
ADJUSTMENT
4.1 Timer clock adjustment (for only ver.E,ER)
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) C3025 (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 61
(D2)
IC3001 pin 17
(D3)
C3026 + and -
(976.5549 ±0.0010 usec)
(No.YD027)1-11
SECTION 5
TROUBLESHOOTING
5.1 JIG Mode
The following remote control units are required to set and cancel JIG mode.
For setting : a remote control unit attached to product.
For cancellation : JIG remote control unit (part number : PTU94023B)
Remote control unit
attached to product
CABLE/DBS
DVDTV
STANDBY/ON
TV
TV/
DVD
TV/CBL/DBS
MUTING
VIDEO
TV VOLUME
ABC
DEF
JKLGHI MNO
CH
TUVPQRS WXYZ
DBS
AUXCANCEL
MEMO/MARK
TIMER
REC LINK
PROG/CHECK
VCR Plus+
NAVIGATIONTOP MENU
ENTER
RETURN
MENU
NEXTPREVIOUS
SLOWSLOW PLAY/SELECT
CLEAR
PAUSEREC
STOP/
REC MODE LIVE CHECK
OPEN/
SET UP DISPLAY
ON SCREEN
CLOSE
PROGRESSIVE
AUDIO SUBTITLE ANGLE
SCAN
JIG remote control unit
JIG remote control unit
[Data transmission]
Set the data code,
and then press the
" " button.
3
Custom code
43:A Code
53:B Code
6F:C Code
7F:D Code
Data code
Initial mode
When the main body is set to JIG mode and when the main body is under JIG mode, the remote control unit attached to product operates only in "Remote Control Code 1". Since main body is in "Remote Control Code 3" when it is shipped and just after its batteries
are changed, "Remote Control Code 3" needs to be changed to "Remote Control Code 1."
< Changing Remote Control Code >
(1) Switch TV/CABLE/SAT/DVD Switch to "DVD"
(2) Press the numeric button "1" of the remote control unit while pressing the "SET UP" button of the remote control unit. Then,
press the "ENTER" button, and then release the "SET UP" button.
(3) Press the "PLAY" button of the main body for five seconds or longer while the main body is in stand-by mode, and a current
remote control code of the main body is displayed in FL indicator of the main body.
(4) While keeping the state of (3), press the "STOP" button of the remote control unit toward the main body.
(5) The code that was set by the remote control unit blinks for 5 seconds, before the code is set to the main body. When the FL
indicator changes to “DVD 1”, it shows that the Remote Control Code has been changed to “1”.
CABLE/SAT
DVDTV
(1)
STANDBY ON
OPEN/
DVD
CLOSE
TV AV
TV/CBL/SAT
VIDEO
HDD DVD
TV
AUX
CANCEL
MEMO/MARK
EDIT
DUBBING
LIVE
TV
ENTER
MENU
CLEAR
STOP/
JUMP
REC MODE
DISPLAY
ON SCREEN
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
NAVIGATIONTOP MENU
PR
PROGRAMME
RETURN
NEXTPREVIOUS
SLOWSLOW PLAY/SELECT
PAUSEREC
HELP
PROGRESSIVE
SCAN
(2)b
(2)c
(4)
(2)a
"(2) a-c" shows the order of pressing the buttons.
(3),(5)
STANDBY/ON
DVD 1
(3)
VIDEO
F1
S-VIDEO VIDEO
L(MONO)-AUDIO-R
DV
HDD DVD
DV IN
PULL - OPEN
1-12 (No.YD027)
5.1.1 Setting JIG mode
To display SYSTEM INFO or to update firmware, the main body needs to be set to JIG mode.
(1) Turn the main body ON.
(2) Press the buttons of the remote control unit attached to product in the following order : "SET UP" → "2" → "8" → "ENTER"
(3) When a colon ":" between "hour" and "minute" of a clock in FL indicator blink, it means that the main body has been set to JIG
mode properly.
[ Example ]
Not in JIG mode In JIG mode
15 : 07
15 07
A colon blinks.
(4) Turn the main body OFF, and then turn it ON again.
*Once the main body is set to JIG mode, the JIG mode cannot be cancelled even if the power cord is pulled out from the wall
socket.
CABLE/SAT
DVDTV
STANDBY ON
OPEN/
DVD
CLOSE
TV AV
TV/CBL/SAT
VIDEO
HDD DVD
TV
AUX
CANCEL
MEMO/MARK
EDIT
DUBBING
LIVE
TV
ENTER
MENU
CLEAR
STOP/
JUMP
REC MODE
DISPLAY
ON SCREEN
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
PROGRAMME
NAVIGATIONTOP MENU
RETURN
NEXTPREVIOUS
SLOWSLOW PLAY/SELECT
PAUSEREC
PROGRESSIVE
(2)b
PR
(2)c
(2)d
HELP
(2)a
SCAN
"(2) a-d" shows the order of pressing the buttons.
(1),(4)
STANDBY/ON
(3)
15:07
VIDEO
F1
S-VIDEO VIDEO
L(MONO)-AUDIO-R
DV
HDD DVD
DV IN
PULL - OPEN
5.1.2 Canceling JIG mode
(1) Transmit "43-9D" to the main body by using JIG remote control unit.
(2) A colon ":" between "hour" and "minute" of a clock in FL indicator light.
(3) Turn the main body OFF, and then turn it ON again.
NOTE:
After repair work, be sure to cancel JIG mode. Before returning product to a user, confirm that a colon ":" between "hour" and
"minute" of a clock in FL indicator light.
(No.YD027)1-13
5.2 Displaying SYSTEM INFO
In the SYSTEM INFO there is information including Firmware Versions of the main body and the drive unit.
(1) Set the main body to JIG mode.
(2) Transmit "43-8B" to the main body by using JIG remote control unit.
(3) SYSTEM INFO menu is displayed in the television screen.
(4) To move cursor in SYSTEM INFO, use the "", "", "", and "" buttons of a remote control unit attached to product.
The example of a display < Version Info 1 >
System Info
Version Info 1
Version Info 2 NAVI Info Initialize
Application Software Version
Middle Ware Software Version
Syscon Software Version
Boot Loader Software version
OK
SELECT WITH [ ] THEN PRESS [ENTER]
EXIT
PRESS [ "8b" ] TO EXIT
SELECT
0.32
0572
1.00
1.2 / 017
The example of a display < Version Info 2 >
System Info
Version Info 1
Silicon Version of E5
DVD Drive Firmware Version
Region
CPRM Key DownLoad
EXIT
NOTE :
Items other than the ones described above are not used in service work.
Version Info 2
OK
SELECT WITH [ ] THEN PRESS [ENTER]
PRESS [ "8b" ] TO EXIT
SELECT
NAVI Info Initialize
C0
P26S
2
Done
Firmware Version of the main body
When the Firmware of the main body is updated,
this part is changed.
Firmware Version of the Drive unit
When the Firmware of the drive unit is updated,
this part is changed.
(5) To quit the SYSTEM INFO menu, transmit "43-8B" to the main body by using JIG remote control unit.
(6) Cancel JIG mode.
1-14 (No.YD027)
5.3 Updating the firmware of the main body
• Firmware update disc supports CD-R media.
• When firmware update is necessary, information is available from the homepage of DIGITAL VIDEO STORAGE CATEGORY, CS
group.
5.3.1 Creating an update disc
Please check the details of the update disc creation method by JS-NET.
(1) Down load the update file from JS-NET. The file name is “hdd_u.udx”.
(2) Write the update file into CD-R. Pay attention in the following points when writing the update disc.
• Make sure to write in “Disc at Once”.
• Set the file compatibility to “ISO9660 format”. (ROMEO, JOLIET are disapproved.)
If the writing method is not correct, the update results in an error.
5.3.2 Update procedure
• There are two methods of updating firmware, using JIG mode <method 1> or not using JIG mode(User update mode) <method 2>.
Updating can be operated in either method.
<Method 1>
(1) Set to the JIG mode.
(2) Load the update disc on the tray, and then close the tray.
(3) When the disc reading operation is completed, transmit “43-70” with the JIG remote control unit.
If the update disc is not correct, FL indicator displays an “ERROR” after transmitting “43-70”. Transmit “43-70” once and make
the FL indicator to normal display, and then reload the disc then transmit “43-70” again.
(4) “UPDATE” is displayed in the FL indicator, and the FL indicator changes to “FL UPDATE” afterwards. It takes approx. 2 min-
utes for the change.
(5) Remove the disc as the tray is ejected, and then transmit “43-70” with the JIG remote control unit. Then the FL indicator chang-
es from “UPDATE” to the normal display.
(6) Close the tray and turn the main body OFF. Pull out the power code from the wall socket, then plug the power cord into the
wall socket again.
(7) When “LOADING” in the FL indicator disappears, turn the main body ON.
(8) Display the SYSTEM INFO menu, and check the version of the firmware.
(9) Cancel the JIG mode.
<Method 2>
(1) Turn the power ON. Load the update disc on the tray and close the tray.
(2) When the disc reading operation is completed, turn the power OFF.
(3) Keep pressing the “PAUSE” button and the “POWER” button at the same time. (Until FL indicator changes to “UPDATE”).
(4) In approx. 2 minutes the tray is ejected. Remove the disc and close the tray.
(5) Reset operation is carried out automatically, and it becomes standby condition.
(6) Then, display the SYSTEM INFO menu in the JIG mode and check the version.
(No.YD027)1-15
5.4 Updating the firmware of the drive unit
• Firmware update disc supports only DVD-RAM media.
• When firmware update is necessary, written discs are distributed by DIGITAL VIDEO STORAGE CATEGORY, CS group.
(1) Turn the main body ON.
(2) Load the update DVD-RAM disc on the tray and close the tray.
(3) “READING” is displayed in the FL indicator and the update is started.
(4) In a short while “READING” in the FL indicator disappears, open the tray to remove the disc and close the tray.
(5) Turn the power OFF and pull out the power code from the wall socket, then plug the power cord into the wall socket again.
(6) Set to the JIG mode and check the firmware version of the drive.
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 “LOADING” 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) Make sure to close the tray afterwards.
<Method 2 >
When the disc cannot be removed by operating above <Method 1 >, open the front door of the main body manually and directly
press the EJECT button located in the lower right of the drive unit.
<Method 3 >
When neither <Method 1> nor <Method 2> can remove the disc, the tray can be ejected mechanically without turning the power on.
(1) Open the front door of the main body manually.
(2) Insert a fine wire (e.g. a straightened paper clip) into the hole in the lower part of the tray of the drive unit.
(3) As the tray ejects a little, pull out the tray manually.
Front door
5.6 Exchanging the fitting
As the fitting that comes with the service drive unit cannot be used, make sure to attach a service fitting when the drive unit is exchanged. The fitting that is removed from the old drive unit can be attached to the new drive unit.
The fitting can be removed by pulling upwards while opening out the lower part of the fitting outwards.
Fitting
Tray
Tray
Hole EJECT Button
1-16 (No.YD027)
5.7 Initialization to the factory shipment state
When the initialization is operated, internal information changes as follows. It is essential to obtain the client’s permission before the
operation.
• All DVD library is all deleted.
• All the DVD initial settings go back to the initial status.
(1) Set to the JIG mode.
(2) Transmit “43-6F” with the JIG remote control unit.
(3) FL indicator displays “FACTORY”, and changes to “CHECK OK” after blinking for a short while.
(4) Pull out the power code from the wall socket.
(5) The JIG mode is forced to cancel at the same time with the initialization, check whether the JIG mode is canceled by plugging
the power code into the wall socket again. (The colon “:” in time display should be continuously ON, not blinking.)
If the JIG mode is not canceled, transmit “43-9D” with JIG remote control unit to cancel the JIG mode.
5.8 Setting after the drive unit replacement
When the drive unit is replaced, it is necessary to set a region code. Service drive units for replacement are not set for any region
code, and they are in an indefinite condition.
Make sure to set region code after attaching the drive unit to the main body.
Without the setting of the region code, discs that have regions cannot be played back.
5.8.1 Creating a region setting disc.
Please check the details of the region setting disc creation method by JS-NET.
(1) Download the region setting file from JS-NET. The file name is “region.bin”.
(2) Write the region setting file into CD-R. Pay attention in the following points when writing the file into CD-R.
• Make sure to write in “Disc at Once”.
• Set the file compatibility to “ISO9660 format”. (ROMEO, JOLIET are disapproved).
If the writing method is not correct, the normal setting cannot be performed.
5.8.2 Setting the region
(1) Set for the JIG mode.
(2) Load the region setting disc on the tray, and then close the tray.
(3) When the disc reading operation is completed, transmit “43-70” with the JIG remote control unit.
(4) FL indicator changes to “UPDATE”. Remove the disc as the tray will open for a few seconds.
(5) Then, check whether the FL indicator is “REGION 2”.
(6) Transmit “43-70” with the JIG remote control unit. When FL indicator changes to “OPEN”, close the tray.
(7) Turn the power OFF, and pull out the power code, and then plug the power code in again.
(8) Cancel the JIG mode.
(No.YD027)1-17
SCHEMATIC DIAGRAMS
DVD & HDD VIDEO RECORDER
DR-MH20SE, DR-MH20SEK, DR-MH20SEF
DR-MH30SE, DR-MH30SEK
DR-MH30SEF, DR-MH30SER
CD-ROM No.SML200409
Area Suffix
EK ------------------------ U.K.
EF --------------------- France
ER ---- Russian Federation
E ------- Continental Europe
Northern Europe
OPEN/
CLOSE TV AV
TV/CBL/SAT
VIDEO
HDD DVD
AUX
CANCEL
MEMO/MARK
EDIT
DUBBING
LIVE
TV
ENTER
MENU
CLEAR
STOP/
JUMP
REC MODE
DISPLAY
ON SCREEN
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
CABLE/SAT
STANDBY ON
TV
PROGRAMME
NAVIGATIONTOP MENU
RETURN
NEXTPREVIOUS
SLOWSLOW PLAY/SELECT
PAUSEREC
PROGRESSIVE
Only ver.EK
DVDTV
DVD
PR
HELP
STANDBY/ON
SCAN
Only ver.E,EF,ER
VIDEO
F1
S-VIDEO VIDEO
Only ver.ER
L(MONO)-AUDIO-R
DV
HDD DVD
DV IN
DR-MH20SE, DR-MH20SEK, DR-MH20SEF [D4HR20]
DR-MH30SE, DR-MH30SEK, DR-MH30SEF, DR-MH30SER [D4HR25]
Since the whole mechanism assembly unit is replaced, the DVD recorder
mechanism of this unit need not be adjusted.
PULL - OPEN
COPYRIGHT 2004 Victor Company of Japan, Limited
No.YD027SCH
2004/9
CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM
Safety precautions
The Components indentified by the symbol are
critical for safety. For continued safety, replace safety
critical components only with manufacturer's recommended parts.
1. Units of components on the schematic diagram
Unless otherwise specified.
1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to
parts list).
Chip resistors are 1/16 W.
K: KΩ(1000Ω), M: MΩ (1000KΩ)
2) All capacitance values are in µF, (P: PF).
3) All inductance values are in µH, (m: mH).
4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts
list).
Note: The Parts Number, value and rated voltage etc. in
the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.
2. Indications of control voltage
AUX : Active at high.
AUX or AUX(L) : Active at low.
!
4. Voltage measurement
1) Regulator (DC/DC CONV) circuits
REC : Colour bar signal.
PB : Alignment tape (Colour bar).
— : Unmeasurable or unnecessary to measure.
2) Indication on schematic diagram
Voltage indications for REC and PB mode on the schematic diagram are as shown below.
REC mode
12 3
2.5
(5.0)
PB mode
1.8
PB and REC modes
(Voltage of PB and REC modes
are the same)
Note: If the voltages are not indicated on the schematic
diagram, refer to the voltage charts.
6. Indication of the parts for adjustments
The parts for the adjustments are surrounded with the circle
as shown below.
CIRCUIT BOARD NOTES
1. Foil and Component sides
1) Foil side (B side) :
Parts on the foil side seen from foil face (pattern face)
are indicated.
2) Component side (A side) :
Parts on the component side seen from component face
(parts face) indicated.
rts location are indicated by guide scale on the circuit board.
2. Parts location guides
Parts location are indicated by guide scale on the circuit board.
REF No.
IC101 B C 6 A
(A : Component side)
D : Discrete component)
B : Foil side
C : Chip component
Note: For general information in service manual, please
refer to the Service Manual of GENERAL INFORMATION Edition 4 No. 82054D (January 1994).
LOCATION
IC
Category : IC
Horizontal “A” zone
Vertical “6” zone
3. Interpreting Connector indications
1
2
Removable connector
3
1
2
Wire soldered directly on board
3
1
Non-removable Board connector
2
3
1
2
4
Board to Board
3
Connected pattern on board
The arrows indicate signal path
Note: For the destination of each signal and further line
connections that are cut off from the diagram,
refer to "BOARD INTERCONNECTIONS"
7. Indication of the parts not mounted on the circuit board
“OPEN” is indicated by the parts not mounted on the circuit
board.
R216
OPEN
2-1 2-2
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