JVC DR-MH20SUC User manual

SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited No.YD026
2004/10
DVD&HDD VIDEO RECORDER
YD026200410
DR-MH20SUC, DR-MH20SUJ,
DR-MH30SUS, DR-MH30SUC
DR-MH30SUJ, DR-MH30STW
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Since the whole mechanism assembly unit is replaced, the DVD recorder
mechanism of this unit need not be adjusted.
DR-MH20SUC, DR-MH20SUJ [D4HR20]
DR-MH30SUS, DR-MH30SUC, DR-MH30SUJ, DR-MH30STW [D4HR25]
HDD DVD
CABLE/DBS
DVDTV
DVD
CH
NEXTPREVIOUS
PAUSEREC
REC MODE
DISPLAY
ON SCREEN
SLOWSLOW PLAY/SELECT
STOP/
CLEAR
NAVIGATIONTOP MENU
RETURN
ENTER
MENU
TV/CBL/DBS
STANDBYON
OPEN/
CLOSE
TV/
VIDEO
TV VOLUME
AUX
CANCEL
MEMO/MARK
PROGRAMME
EDIT
DUBBING
LIVE
JUMP
HELP
TV MUTING
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
PROGRESSIVE
SCAN
STANDBY/ON
S-VIDEO VIDEO
L(MONO)
-
AUDIO
-
R
DV
DV IN
F1
HDD DVD
PULL - OPEN
Only ver.US,UC,UJ Only ver.TW
Area Suffix
US ----------------------- U.S.A.
UC -------------------- Canada
UJ ------------ U.S.A. Militaly
TW -------------------- Taiwan

1-2 (No.YD026)
SPECIFICATION
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.
• VCR Plus+, C3and PlusCode are registered trademarks of Gemstar Development Corporation. The VCR Plus+ system is manufactured under li-
cense from Gemstar Development Corporation.
•DSS
TM is an official trademark of DIRECTV, Inc., a unit of GM Hughes Electronics. DISH NetworkTM is a trademark of Echostar Communications
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 engi-
neering or disassembly is prohibited.
DR-MH20SUC,DR-MH30SUC,DR-MH30SUS
DR-MH30STW DR-MH20SUJ,DR-MH30SUJ
GENERAL
Power requirement AC 120 V~, 60 Hz AC 110 V - 240 V~, 50 Hz/60 Hz
Power consumption Power on : 35 W
Power off : 16.2 W
Power on : 37 W
Power off : 19.3 W
Temperature Operating : 5°C to 40°C(41°F to 104°F)
Storage : -20°C to 60°C(-4°F to 140°F)
Operating position Horizontal only
Dimensions (W ×H ×D) 435 mm ×70 mm ×345.5 mm (17-3/16" x 2-13/16" x 13-5/8")
Weight 6.1 kg(13.5 lbs)
Input/Output
S-video input Y:0.8-1.2 Vp-p, 75 ohms
C : 0.2 -0.4 Vp-p, 75 ohms
S-video output Y : 1.0 Vp-p, 75 ohms
C : 0.3 Vp-p, 75 ohms
Video input 0.5- 2.0 Vp-p, 75 ohms (pin jack)
Audio input -8 dB, 50 kilohms (pin jack)
Corresponding to mono (left)
Audio output -8 dB, 1 kilohms (pin jack)
i.Link 4-pin for DV input
Component video output Y : 1.0 Vp-p, 75 ohms
CB/CR, PB/PR: 0.7 Vp-p, 75 ohms
Corresponding to copy protection
Digital audio output Optical: -18 dBm, 660 nm
Coaxial: 0.7 Vp-p, 75 ohms
Corresponding to Dolby Digital and DTS Digital Surround Bit stream
Selectable in digital audio output setting menu
RCA connectors IN x 3, OUT x 2
VIDEO/AUDIO (DVD Deck)
Recording time
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
Audio recording system Dolby Digital (2 ch)
Linear PCM (XP mode only)
Video recording compression system
MPEG2 (CBR/VBR)
VIDEO/AUDIO (HDD Deck)
Video recording compression system
MPEG2 (VBR)
Audio recording system Dolby Digital (2 ch)
Linear PCM (XP mode only)
Recording time HDD capacity
DR-MH30S:160 GB,DR-MH20S:80 GB
Recording Time
DR-MH30S
(XP) 1 hour: Approx. 34 hours, (SP) 2 hours: Approx. 68 hours, (LP)4 hours : Approx. 136 hours, (EP)6 hours : Approx. 204
hours, (FR480)8 hours : Approx. 272 hours
DR-MH20S
(XP) 1 hour: Approx. 17 hours, (SP) 2 hours: Approx. 34 hours, (LP)4 hours : Approx. 68 hours, (EP)6 hours : Approx. 102 hours,
(FR480)8 hours : Approx. 136 hours
TUNER/TIMER
Channel coverage VHF: Channels 2 - 13
UHF: Channels 14 - 69
CATV: 113 Channels
Memory backup time Approx. 60 seconds
ACCESSORIES
Provided accessories RF cable, Audio/Video cable, Satellite Controller, Infrared remote control unit,
”AA” battery x 2
RF cable, Audio/Video cable, Conver-
sion plug
,
Satellite Controller, Infrared
remote control unit, ”AA” battery x 2

(No.YD026)1-3
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. 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 per-
formed 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 characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice 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 charac-
teristics 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 reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna 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, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent 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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W 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.).
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 pre-
forming 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)
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE

1-4 (No.YD026)
1.5 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.5.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players or recorder.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.6 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long
a time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

(No.YD026)1-5
1.7 Important for laser products
D5105
R5103
R5109
D5310
B5001
D5101
IC5301
C5302
R5105
D5203
F5001
D5106
B5301
D5001
D5103
W5302
D5104
D5205
C5203
D5201
D5202
W5301
D5204
D5207
IC5101
R5001
D5206
D5208
CN5301
D5209
D5210
D5211
R5108
CN5303
CN5306
D5212
CN5305
D5214
IC5302
D5213
R5101
C5207
L5201
L5202
L5203
L5204
VA5003
L5205
L5206
L5207
C5201
D5308
C5210
C5202
C5204
C5205
C5206
C5208
C5209
R5320
C5005
C5307
R5319
Q5316
C5303
C5304
Q5310
C5310
C5305
C5001
C5002
C5003
C5004
C5101
C5103
C5104
C5105
Q5304
C5309
C5308
C5311
C5312
C5313
C5301
C5326
C5306
C5318
C5316
D5315
D5309
D5301
D5302
D5303
D5304
T5001
Q5306
PC5101
CP5301
VA5001
CN5001
Q5307
LF5001
Q5301
FC5001
FC5002
D5317
Q5309
C5102
R5307
R5308
R5309
W5305
W5303
W5409
W5402
W5414
C5340
R5317
W5416
W5306
W5419
W5309
D5306
D5307
B5401
W5413
W5405
W5404
GN1
W5410
W5401
W5406
W5411
W5408
W5421
W5407
W5420
ST1
CN5304
W5403
W5415
W5418
W5423
W5412
W5425
R5328
R5329
W5422
D5316
W5307
W5308
W5304
CP5302
W5424
C5323
C5329
C5331
D5311
D5312
D5313
D5314
C5319
C5321
W5417
CN5307
B5402
Full Fuse Replacement Marking
Graphic symbol mark
(This symbol means fast blow type fuse.)
should be read as follows ;
FUSE CAUTION
FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE
AND RATING OF FUSES ;
F5001 : 1.6 A / 250 V F5001 : 1.6 A / 250 V
Marquage Pour Le Remplacement
Complet De Fusible
PRECAUTIONS SUR LES FUSIBLES
POUR UNE PROTECTION CONTINUE CONTRE
DES RISQUES D'INCENDIE, REMPLACER
SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;
Le symbole graphique (Ce symbole signifie
fusible de type a fusion rapide.)
doit etre interprete comme suit ;
Importance administering point on the safety

1-6 (No.YD026)
1.8 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

(No.YD026)1-7
1.9 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
1.9.1 Handling in transport, etc.
• Be sure to place the HDD in the manufacturer's specified pack-
age 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
it.
• It is not permitted to use the inner package carton only for
transporting an HDD.
• Do not stack package cartons one upon another.
1.9.2 Handling an HDD in the stand-alone status
• When handling an HDD on a hard workbench, place an anti-
static 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 screwdriv-
er).
• Do not place an HDD on its side panel without using a support
(do not place an HDD in an unstable position).
1.9.3 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.
HDD
Do not throw or
drop packages.
Be sure to package and
transport the HDDs correctly.

1-8 (No.YD026)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.YD026)1-9
SECTION 3
DISASSEMBLY
There is a part different from the photograph according to the model and the destination though explains this disassembly method
by using DR-MH30SE.
3.1 Main body section
3.1.1 Remove the top cover (See figure 1)
(1) Remove the four screws Aattaching the top cover on both
sides of the main body.
(2) Remove the five screws Battaching 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.
Fig.1
B
B
Ax 2
TOP COVER
TOP COVER
TOP COVER
B
Ax 2
B
B

1-10 (No.YD026)
3.1.2 Remove the front panel assembly and HDD (See figure 2, figure 3, figure 4, and figure 5)
• Prior to performing the following procedure, remove the top
cover.
• There is no need to remove the drive unit.
(1) Remove the four screws Cattaching 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 aand bare 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.
Fig.2
Fig.3
Fig.4
Fig.5
HDDConnector
CN5307
Switching
regulator board
C
C
C
C
Front panel assembly
Main board CN3001
CN3002CN4001
Hook a
Hook b
Hook b
Hook a
Front panel
assembly
Front panel
assembly
Card wire
Card wire
Front part of a chassis

(No.YD026)1-11
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 on the
switching regulator board.
(2) Disconnect the card wire from connector CN2201 on the
digital board.
(3) The tape which is fixing the card wire is removed two plac-
es.
(4) Remove the four screws Dattaching the drive unit.
(5) Remove the one screw Eattaching the lug wire.
Fig.6
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, CN2101
on the digital board.
(2) Disconnect the socket wire from connector CN1003 on the
digital board.
(3) Remove the four screws Fattaching the digital board.
(4) Lift the digital board up, and remove it. Then, the digital
board is removed from the connectors CN4101, CN4102
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.
Fig.7
Fig.8
D
Drive unit Tape
D
CN2201
D
E
D
CN5303
Digital board
CN2101 Switching
regulator board
Digital board
CN1003
CN2201
F
CN2101
F
F
F
CN4101
Digital board
Main board
CN4104
Jack board
CN4102

1-12 (No.YD026)
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, CN5306, CN5307 on the switching regulator
board.
(3) Disconnect the power cord from connector CN5001 on the
switching regulator board.
(4) Remove the two screws Gattaching the switching regula-
tor board.
(5) Four spacers are removed.
Fig.9
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 Hattaching the main board.
(3) Remove the seven screws Iattaching the rear panel with
main board.
Fig.10
Fig.11
Switching
regulator board
Spacer
G
CN5306
CN5305
CN5001 G
Power cord
Spacer
CN5301
Spacer
CN5307
Spacer
CN5303
CN3001
Main boardCN7301
H
CN4001 CN3002
H
I
Rear panel

(No.YD026)1-13
SECTION 4
ADJUSTMENT
4.1 Timer clock adjustment (for only ver.UJ,TW)
If an error comes to arise for a clock, the following procedure will adjust.
(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).
Signal (A1) No signal
Mode (B) EE
Equipment (C) Frequency counter
Measuring point (D1)
(D2)
(D3)
IC3001 pin 61
IC3001 pin 17
C3026 + and -
Adjustment part (F) C3025 (TIMER CLOCK)
Specified value (G1) 1024.008 ±0.001 Hz
(976.5549 ±0.0010 usec)

1-14 (No.YD026)
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)
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 op-
erates 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”.
Custom code
43:A Code
53:B Code
6F:C Code
7F:D Code
Data code
Initial mode
Remote control unit
attached to product JIG remote control unit
3
JIG remote control unit
[Data transmission]
Set the data code,
and then press the
" " button.
CABLE/DBS
DVDTV
DVD
CH
TIMER
REC LINK
PROG/CHECK
VCR Plus+
NEXTPREVIOUS
PAUSEREC
REC MODE LIVE CHECK
SET UP DISPLAY
ON SCREEN
OPEN/
CLOSE
AUDIO SUBTITLE ANGLE
PROGRESSIVE
SCAN
SLOWSLOW PLAY/SELECT
STOP/
CLEAR
NAVIGATIONTOPMENU
RETURN
ENTER
MENU
TV/CBL/DBS
STANDBY/ON
TV
MUTING TV/
VIDEO
TVVOLUME
ABC
JKLGHI MNO
TUVPQRS WXYZ
AUXCANCEL
MEMO/MARK
DBS
DEF
STANDBY/ON
S-VIDEO VIDEO
L(MONO)
-
AUDIO
-
R
DV
DV IN
F1
HDD DVD
PULL - OPEN
VIDEO
HDD DVD
CABLE/SAT
DVDTV
DVD
PR
NEXTPREVIOUS
PAUSEREC
REC MODE
DISPLAY
ON SCREEN
SLOWSLOW PLAY/SELECT
STOP/
CLEAR
NAVIGATIONTOP MENU
RETURN
ENTER
MENU
TV/CBL/SAT
STANDBY ON
OPEN/
CLOSE TV AV
VIDEO
TV
AUX
CANCEL
MEMO/MARK
PROGRAMME
EDIT
DUBBING
LIVE
JUMP
HELP
TV
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
PROGRESSIVE
SCAN
(1)
(2)b
(2)c
(2)a
(4)
(3)
(3),(5)
"(2) a-c" shows the order of pressing the buttons.
DVD 1

(No.YD026)1-15
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.
(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.
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.
Not in JIG mode In JIG mode
[ Example ]
15 : 07 15 07
A colon blinks.
STANDBY/ON
S-VIDEO VIDEO
L(MONO)
-
AUDIO
-
R
DV
DV IN
F1
HDD DVD
PULL - OPEN
VIDEO
HDD DVD
CABLE/SAT
DVDTV
DVD
PR
NEXTPREVIOUS
PAUSEREC
REC MODE
DISPLAY
ON SCREEN
SLOWSLOW PLAY/SELECT
STOP/
CLEAR
NAVIGATIONTOP MENU
RETURN
ENTER
MENU
TV/CBL/SAT
STANDBY ON
OPEN/
CLOSE
TV AV
VIDEO
TV
AUX
CANCEL
MEMO/MARK
PROGRAMME
EDIT
DUBBING
LIVE
JUMP
HELP
TV
SAT SET UP
VPS/PDC
AUDIO
SUBTITLE
ANGLE
LIVE CHECK
PROGRESSIVE
SCAN
(2)b
(2)c
(2)d
(2)a
(3)
(1),(4)
"(2) a-d" shows the order of pressing the buttons.
15:07

1-16 (No.YD026)
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.
NOTE :
Items other than the ones described above are not used in service work.
(5) To quit the SYSTEM INFO menu, transmit "43-8B" to the main body by using JIG remote control unit.
(6) Cancel JIG mode.
OK
SELECT
SELECT WITH [ ] THEN PRESS [ENTER]
PRESS [ "8b" ] TO EXIT
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
0.32
0572
1.00
1.2 / 017
EXIT
OK
SELECT
SELECT WITH [ ] THEN PRESS [ENTER]
PRESS [ "8b" ] TO EXIT
System Info
Version Info 1 Version Info 2 NAVI Info Initialize
Silicon Version of E5
DVD Drive Firmware Version
Region
CPRM Key DownLoad
C0
P26S
2
Done
EXIT
The example of a display < Version Info 1 >
The example of a display < Version Info 2 >
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.

(No.YD026)1-17
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.

1-18 (No.YD026)
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.
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 ex-
changed. 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.
Front door Tray Hole EJECT Button
Fitting
Tray

(No.YD026)1-19
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.YD026)
WPC
Printed in Japan
AV & MULTIMEDIA COMPANY DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
Victor Company of Japan, Limited
This manual suits for next models
5
Table of contents
Other JVC DVR manuals

JVC
JVC VR-609U - 9 Channel Digital Video Recorder User manual

JVC
JVC LPT0923-001B User manual

JVC
JVC DR-MH300SAA User manual

JVC
JVC SR-DVM700E User manual

JVC
JVC DRMV80B - DVDr/ VCR Combo User manual

JVC
JVC DR-M150SEK User manual

JVC
JVC DR-MH20SE User manual

JVC
JVC DRMV100B - DVDr/ VCR Combo User manual

JVC
JVC SR-MV55 User manual

JVC
JVC DR-M10S User manual