Panasonic DMR-EH54DEG User manual

© 2005 Matsushita Electric Industrial CO., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-EH54DEG
Vol.1
Colour
(S).......................Silver Type
DVD Recorder
ORDER NO.MAD0510011CE

SPECIFICATIONS
Power supply:
Power consumption:
Dimensions and Mass:
Operating temperature range:
Operating humidity range:
Pickup:
Recording :
Signal system:
Playable disctype:
TV tuner system:
AC220-240 V, 50/60 Hz
34 W
Power Save mode: approx. 3W
430 (W)×350,5 (D)×63 (H) mm
(excluding protrusions) / 4.5kg
+5 to +40°C
10 to 80% RH (no condensation)
Laser power
Wave length nm / 795nm
No hazardous radiation is emitted
with the safety protection
MPEG2 (Hybrid VBR)
PAL625/50, NTSC525/60
DVD-RAM
DVD-R, DVD-RW
DVD+R, DVD+RW
DVD-Video, DVD-Audio
CD-Audio (CD-DA), Video CD
SVCD (IEC62107)
CD-R/CD-RW
(CD-DA, Video CD formatted discs)
MP3 (audio), JPG (picture)
Maximum tracks 999 tracks (
Maximum groups 99 groups (recognizable)
Analog Tuner Digital Tuner
VHF CHE2 - CHE12 CH5 - CH12
UHF CH21 - CH69 CH21 - CH69
CATV S01 - S05
S1 - S20
S21 - S41
CLASS2/CLASS1
662
Audio: Dolby Digital 2CH
Region No.2
80GB / max. 142h (EP mode)
,
DVD-RAM: 12cm 4.7GB / 9.4GB / 8cm 2.8GB
DVD-R: 12cm 4.7GB / 8cm 1.4GB
DVD-RW: 12cm 4.7GB
DVD+R: 12cm 4.7GB
(using 4.7GB disc)
XP: 10 MBps 60min
SP: 5 MBps 120min
LP: 3 MBps 240min
EP: 1.7 / 1.2 MBps 360 - 480min
recognizable)
Specifications are subject to change without notice.
Mass and dimensions are approximate.
system
DVD Region number:
Internal HARD DISC DRIVE:
DVD Recording Playable discs:
DVD approximate Recording time :
Note:
SD Card Slot (Still Picture) JPEG (DCF Standard) / TIFF (uncompressed)
Compatible Cards SD Card / Multimedia Card
miniSD Card with adapter
Format / Pixels FAT12, FAT16 / 34x34 to 6144x4096
Video in AV1 / AV2 21 pin connector (1.0Vp-p, 75 )
Video in AV3 / AV4 pin jack connector (1.0Vp-p, 75 )
S-Video in AV1 / AV2 21 pin connector
(Y: 1.0Vp-p, C:0,3Vp-p 75 )
S-Video in AV3 / AV4 pin jack connector
(1.0Vp-p, C:0,3Vp-p 75 )
RGB Video in AV2 (PAL) 21pin connector (0.7 Vp-p 75 )
()
21pin (AV1) and
(Y: 1.0 Vp-p, 75 )
21pin connector (0.7 Vp-p 75 )
Component Video out pin jack connector Y (1.0Vp-p 75 )
pin jack connector PB (0.7Vp-p 75 )
pin jack connector PR (0.7Vp-p 75 )
Picture input:
Video input:
TM
W
W
W
W
W
W
W
W
W
W
Video output:
Audio input:
Audio output:
Video out AV1 / AV2 21 pin connector (1.0Vp-p, 75 )
FBAS (Composit) pin jack connector 1.0Vp-p, 75
S-Video out pin jack, S connector
RGB Video AV1
EURO AV (AV1 / AV2) 21 pin connector
(-6dBV, 500mV, more than 10k )
CINCH IN (AV3 / AV4) pin jack connector
(-6dBV, 500mV, more than 10k )
CINCH OUT pin jack connector
(-6dBV, 500mV, less than 1k )
EURO AV (AV1 / AV2) 21 pin connector
(-6dBV, 500mV, less than 1k )
OPTICAL OUT PCM, Dolby Digital, DTS, MPEG
W
W
W
W
W
W
MPEG Layer-3 audio decoding technology licensed from Fraunhofer
IIS and Thomson multimedia.
■Built-in decoders
You can play discs with these symbols.
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 uses only unless otherwise autherwise
authorized by Macrovision Corporation. Reverse engineering or
2
DMR-EH54DEG

1 INTRODUCTION 4
2 SAFETY PRECAUTIONS 4
2.1. GENERAL GUIDELINES 4
3 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO
ELECTROSTATIC SENSITIVE (ES) DEVICES 5
4 PRECAUTION OF LASER DIODE 6
5 HANDLING THE LEAD-FREE SOLDER 6
5.1. ABOUT LEAD FREE SOLDER (PbF) 6
6 GENERAL DESCRIPTION 7
7 NEW FEATURES 8
7.1. QUICK START FUNCTION (REC) 8
8 TAKING OUT THE DISC FROM RAM-DRIVE UNIT WHEN THE
DISC CANNOT BE EJECTED BY OPEN/CLOSE BUTTON 9
8.1. FORCIBLE DISC EJECT 9
8.2. WHEN THE FORCIBLE DISC EJECT CAN NOT BE
DONE 9
9 (DVD) SERVICE EXPLORER 10
10 SELF-DIAGNOSIS AND SPECIAL MODE SETTING 13
10.1. SELF-DIAGNOSIS FUNCTIONS 13
10.2. SPECIAL MODES SETTING 14
10.3. SERVICE MODES 17
11 ASSEMBLING AND DISASSEMBLING 23
11.1. DISASSEMBLY FLOW CHART 23
11.2. P.C.B. POSITIONS 23
11.3. TOP CASE 24
11.4. FRONT PANEL 24
11.5. FRONT P.C.B. 24
11.6. SD CARD P.C.B. 24
11.7. DIGITAL P.C.B. 25
11.8. HARD DISC DRIVE 25
11.9. LED P.C.B. 26
11.10. DVD-RAM DRIVE 27
11.11. POWER P.C.B. 27
11.12. REAR PANEL 28
11.13. MAIN P.C.B. 29
11.14. TUNER P.C.B. AND BACK END P.C.B. 29
12 SERVICE FIXTURE AND TOOLS 30
13 SERVICE POSITIONS 30
13.1. CHECKING AND REPAIRING OF POWER P.C.B. 30
13.2. CHECKING AND REPAIRING OF MAIN P.C.B. 31
13.3. CHECKING AND REPAIRING OF DVD-RAM DRIVE 32
13.4. CHECKING AND REPAIRING OF HDD 33
14 CAUTION AFTER REPLACING PARTS 34
14.1. AFTER REPLACING THE DVD-RAM DRIVE WITH NEW
ONE 34
14.2. WHEN THE UNIT DOES NOT OPERATE NORMALLY
AFTER REPLACING THE TIMER MICROPROCESSOR
OR MAIN P.C.B. 34
15 STANDARD INSPECTION SPECIFICATIONS AFTER MAKING
REPAIRS 34
16 VOLTAGE AND WAVEFORM CHART 35
16.1. WAVEFORM CHART 41
17 ABBREVIATIONS 42
18 INTERCONNECTION 45
19 BLOCK DIAGRAM 47
19.1. POWER BLOCK DIAGRAM 47
19.2. ANALOG VIDEO BLOCK DIAGRAM 49
19.3. ANALOG AUDIO BLOCK DIAGRAM 50
19.4. TIMER BLOCK DIAGRAM 51
20 SCHEMATIC DIAGRAM 53
20.1. POWER SCHEMATIC DIAGRAM 53
20.2. MAIN NET 55
20.3. MAIN AV IO 56
20.4. MAIN TIMER 57
20.5. MAIN NICAM 58
20.6. TUNER 59
20.7. VIF UNIT 60
20.8. SD CARD 61
20.9. LED 62
20.10. FRONT 63
21 PRINTED CIRCUIT BOARD 65
21.1. POWER P.C.B. 65
21.2. MAIN P.C.B. 66
21.3. TUNER P.C.B. 68
21.4. VIF P.C.B. 69
21.5. SD CARD 70
21.6. FRONT P.C.B. AND LED P.C.B. 71
22 EXPLODED VIEWS 73
22.1. CASING PARTS AND & MECHANISM SECTION 73
22.2. PACKING & ACCESSORIES SECTION 74
23 REPLACEMENT PARTS LIST 75
23.1. CASING PARTS & PRINTED CIRCUIT BOARDS 75
23.2. PACKING & ACCESSORIES PARTS 75
23.3. ELECTRICAL PARTS 75
23.4. SERVICE FIXTURE AND TOOLS 84
24 DIAGRAMS FOR PRINTING WITH A4 85
CONTENTS
Page Page
3
DMR-EH54DEG

2 SAFETY PRECAUTIONS
2.1. GENERAL GUIDELINES
1.Be careful during removing metal parts, sharp edges.
2.When servicing, observe the original lead dress. If a short
circuit is found, replace all parts which have been
overheated or damaged by the short circuit.
3.After servicing, see to it that all the protective devices such
as insulation barriers, insulation papers shields are properly
installed.
4.After servicing, make the following leakage current checks
to prevent the customer from being exposed to shock
hazards.
2.1.1. LEAKAGE CURRENT COLD
CHECK
1.Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2.Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screw heads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1MΩand 5.2MΩ.
When the exposed metal does not have a return path to
the chassis, the reading must be infinity.
Figure 1
2.1.2. LEAKAGE CURRENT HOT CHECK
1.Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2.Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF
capacitors, between each exposed metallic part on the set
and a good earth ground such as a water pipe, as shown in
Figure 1.
3.Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4.Check each exposed metallic part, and measure the
voltage at each point.
5.Reverse the AC plug in the AC outlet and repeat each of the
above measurements.
6.The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current must not exceed 1/2 milliampere. In case a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
1 INTRODUCTION
This service manual contains technical which will alow service personnel´s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with
original service manual.
1.This service manual does not contain the following information, because of the impossibility of sevicing at component level.
• • •
• Schematic Diagram, Block Diagram and P.C.B. layout of Digital P.C.B. and Backend P.C.B.
• • •
• Parts List for individual parts of Digital P.C.B. and Backend P.C.B.
• • •
• Exploded View and Parts List for individual parts of RAM drive.
2.The following category are recycle module part. Please send them to Central Repair Center.
• • •
• Digital P.C.B.: VEP79106E
• • •
• Backend P.C.B.: REPD0023B
• • •
• RAM drive: VXY1872
4
DMR-EH54DEG

Some semiconductor (solid state) devices can be damaged
easily by static electricity. Such components commonly are
called Electrostatic Sensitive (ES) Devices. Examples of typical
ES devices are integrated circuits and some field-effect
transistor-sand semiconductor "chip" components. The
following techniques should be used to help reduce the
incidence of component damage caused by electrostatic
discharge (ESD).
1.Immediately before handling any semiconductor
component or semiconductor-equipped assembly, drain off
any ESD on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available
discharging ESD wrist strap, which should be removed for
potential shock reasons prior to applying power to the unit
under test.
2.After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such
as aluminum foil, to prevent electrostatic charge buildup or
exposure of the assembly.
3.Use only a grounded-tip soldering iron to solder or unsolder
ES devices.
4.Use only an anti-static solder removal device. Some solder
removal devices not classified as "anti-static (ESD
protected)" can generate electrical charge sufficient
to damage ES devices.
5.Do not use freon-propelled chemicals. These can generate
electrical charges sufficient to damage ES devices.
6.Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads
electrically shorted together by conductive foam, aluminum
foil or comparable conductive material).
7.Immediately before removing the protective material from
the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and
observe all other safety precautions.
8.Minimize bodily motions when handling unpackaged
replacement ES devices. (Otherwise hamless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static
electricity sufficient to damage an ES device).
3 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD)
TO ELECTROSTATIC SENSITIVE (ES) DEVICES
5
DMR-EH54DEG

4 PRECAUTION OF LASER DIODE
CAUTION: ACHTUNG:
This product utilizes a laser diode with the unit turned “on”,
invisible laser radiation is emitted from the pickup lens.
Wave length: 662 nm (DVDs)/795 nm (CDs)
Maximum output radiation power from pickup: 100µ W/VDE.
Laser radiation from the pickup lens is safety level, but be sure
the followings:
Dieses Produkt enthält eine Laserdiode.
Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der
Lasereinheit ausgestrahlt.
Wellenlänge: 662 nm(DVDs)/795 nm (CDs)
Maximale Strahlungsleistung der Lasereinheit: 100µ W/VDE.
Die Strahlung der eingeschalteten Lasereinheit ist ungefährlich, wenn
folgende Punkte beachtet werden:
1. Do not disassemble the optical pickup unit, since radiation
from exposed laser diode is dangerous. 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.
2. Do not adjust the variable resistor on the pickup unit.
It was already adjusted. 2. Den werksseitig justierten Einstellregler der Lasereinheit nicht verstellen.
3. Do not look at the focus lens using optical instruments. 3. Nicht in die Fokussierlinse blicken.
4. Recommend not to look at pickup lens for a long time. 4. Auch nicht mit optischen Instrumenten in die Fokussierlinse blicken.
5 HANDLING THE LEAD-FREE SOLDER
5.1. ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.
Caution:
• • •
• Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with temperature control,
please set it to 700 ± 20°F (370 ± 10°C).
• • •
• Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
• • •
• When soldering or unsoldering, please completely remove all of the solder on the pins or solder area,
and be sure to heat the soldering points with the Pb free solder until it melts enough.
6
DMR-EH54DEG

6 GENERAL DESCRIPTION
OPEN/CLOSE
Front Panel Button: Open and close the disc tray
DVD / HDD Controls
Stand-by/on switch
Press to switch the unit from on to stand-by mode
or vice versa. In stand-by mode, the unit is still consuming
a small amount of power.
VCD
MP3 JPEG
5: + 15: +
5: + + 15: + +
AV
VOLUME
CH
Select the timeframe to be skipped.
Select the AV input on the television set.
Turn the television set on and off.
CH: Select the channel on the television set.
VOLUME: Volume control of the television set.
Exit a menu.
TIMER RECORDING menu
FUNCTION selection menu.
TOP MENU: Main menu of DVD-video.
DIRECT NAVIGATOR TITLE VIEW
Launch the TV GUIDE system.
Rotate the wheel to select the parameter.
Display the programme information from
the TV GUIDE or the Banner.
to select the Function in the menu.
Launch DVD sub menus.
ENTER: Select or save a setting.
Smart Wheel: Press up, down, left or right
Still picture or time loop playback.
Blue Button: Menu Guide
Number buttons - direct input
REC MODE
EXT LINK
ShowView
INPUT SELECT
REC
CANCEL
Switch button of the AV input between AV1, AV2
AV3 (front) and AV4.
Switch timer on and off.
Record with external recording control.
Select the disc audio canal.
To copy from DVD to HDD.
Split the recording into chapters.
Yellow Button: Menu Guide
PAGE:
CH
Page in the electronic TV Guide.
: Channel select button.
Search or slow motion playback.
Starts playback.
Cancel a function.
Skip chapters, titles, or pictures.
Stops recording, replay or forward / reverse action
Pause a recording or playback.
Start the recording.
Record mode button XP, SP, LP, EP
Direct TV record to DVD.
Jumps forward 30 seconds.
PLAY/ x1.3
RAM - You can increase the playback speed.
Hold PLAY during playback.
ShowView menu.
Erase a title or a chapter.
Red Button: Menu Guide
Launch the disc menu.
Green Button: Menu Guide
Time and detail information appears on the screen.
123
456
789
0
CH
AV
DVD
DVD/VHS
TV
TV
DIRECT TV REC
DIRECT TV REC
MANUAL SKIP
VOLUME
ShowView
CANCEL
REC
TIME SLIP
TIME SLIP
DISPLAY STATUS
Panasonic
DVD/TV
INPUT SELECT
MANUAL SKIP
*
REC MODE
TIMER
TIMER
AUDIO
CH
CH
PAGE
PAGE
SLOW/SEARCH
SLOW/SEARCH
STOP
STOP
PAUS E
PAUS E
PLAY/x1.3
PLAY/x1.3
ERASE
ERASE
F Rec
AUDIO
DISPLAY
STATUS
F
U
N
C
T
I
O
N
S
F
U
N
C
T
I
O
N
S
ENTER
ENTER
T
C
E
R
I
D
T
C
E
R
I
D
R
O
T
A
G
I
V
A
N
R
O
T
A
G
I
V
A
N
S
S
SUB MENU
SUB MENU
RETURN
RETURN
CREATE
CREATE
CHAPTER
CHAPTER
EUR7729KT0
EXT LINK
SKIP
SKIP
DUBBING
DUBBING
Switching this unit into standby mode does not
disconnect it from the mains. DVD SD
HDD
Press the corresponding button
to operate the desired element.
DVD SD
HDD
H
GCC
OEK
R
P
K
EGC
H
C
O
R
P
7
DMR-EH54DEG

7 NEW FEATURES
7.1. QUICK START FUNCTION (REC)
1.General
A few seconds after tuning on the unit, you can start recording to DVD-RAM, HDD.
You can switch the operation of this function (ON/OFF) on the menu screen.
2.Quick start (REC) principle
In the power-off at Quick start, only power supplies for video IC, tuner and storage media are cut off.
2.1. When the REC button is pushed a few second after the power button is pushed, Audio and Video data are stored
in DDR SDRAM before a storage media (DVD-RAM or HDD) preparation.
*Preparation time →DVD-RAM: About 8 seconds, HDD: About 18 seconds.
2.2. After a storage media DVD-RAM or HDD preparation,
Audio and Video data are transfered from DDR SDRAM to the storage media.
8
DMR-EH54DEG

8 TAKING OUT THE DISC FROM RAM-DRIVE UNIT WHEN
THE DISC CANNOT BE EJECTED BY OPEN/CLOSE
BUTTON
8.1. FORCIBLE DISC EJECT
8.1.1. WHEN THE POWER CAN BE TURNED OFF
1.Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 5 seconds.
8.1.2. WHEN THE POWER CAN NOT BE TURNED OFF
1.Press [POWER] key on the front panel for over 10 seconds to turn off the power forcibly, and press [STOP] [CH UP] keys
on the front panel simultaneously for 5 seconds.
8.2. WHEN THE FORCIBLE DISC EJECT CAN NOT BE DONE
1.Turn off the power and pull out AC cord.
2.Remove the Top Case and the Front Panel.
3.Remove 4 screws and Upper Base Unit from DVD-RAM Drive.
4.Take out the disc and put the Opener Roller on fully position for direction of Arrow.
5.Put the Upper Base Unit so that the Opener Roller is inserted into the groove.
6.Check Opener Roller is seen through the Opener position Checking Hole, and tighten 4 screws.
9
DMR-EH54DEG

9 (DVD) SERVICE EXPLORER
Confirm “RAM-Drive Last Error” in Service Mode
Execute Service Mode
1.Press [REC], [CH UP] and [OPEN/CLOSE] simultaneously for 5 seconds when P-off.
FL Display:
*After finishing display “(7). Factor of Drive Error occurring”, press [0] [2] ~[1] [9] keys of the Remote Controller so that
19 memories can be displayed as maximum.
2.Press [4] [2] keys of remote controller.
Example of FL Display:
(1) Error Number is displayed for 5 seconds.
(2) Time when the error has occurred is displayed for 5 seconds.
(3) Last Drive Error (1/2) is displayed for 5 seconds.
When above error codes are displayed, confirm operation with Panasonic RAM or DVD-R disc.
* If the operation is OK, judge the error is due to media.
* If the operation is NG and symptom as BLOCK NOISES and so on that are particular symptom of Digital
appears, judge the error is due to RAM-Drive or Digital P.C.B. .
(4) Last Drive Error (2/2) is displayed for 5 seconds.
(5) Error occurring Disc type is displayed for 5 seconds.
(6) Disc Maker´s ID is displayed for 5 seconds.
10
DMR-EH54DEG

Example of Disc Maker´s ID:
DVD-R Disc
No. FL Display (Disc Maker´s ID) Disc Maker Country
1 MEI Panasonic Japan
2 PVC Pioneer Japan
3 MCC Mitsubishi Chemical Corporation Japan
4 TDK TDK Japan
5 MXL Maxell Japan
6 MCI MITUI CHEMICALS Japan
7 JVC Victor JVC Japan
8 TAIYOYUDEN Taiyo yuden Japan
TYG
9 GSC Giga Storage Taiwan
10 PRODISC Prodisc Taiwan
11 PRINCO PRINCO Taiwan
12 RITEK RITEK Taiwan
13 OPTDISC OPTDISC Taiwan
14 LEAD DATA LEAD DATA Taiwan
15 CMC CMC Taiwan
16 AUVISTAR AUVISTAR Taiwan
17 ACER Acer Taiwan
18 VIVASTAR VIVASTAR Switzerland
19 LGE LG Electronics Korea
DVD-RAM Disc
No. FL Display (Disc Maker´s ID) Disc Maker Country
1 MEI Panasonic
2 MATSUSHITA Panasonic Japan
3 MXL Maxell Japan
4 PRODISC Prodisc Taiwan
5 OPTDISC OPTDISC Taiwan
6 CMC CMC Taiwan
*Since the disc information can be changed without information from the producer, the above-mentioned display may
be changed. Please make it reference as an example of a display.
(7) Factor of Drive Error occurring is left displayed
Error Occurring Disc Type
FL Display Disc Type
00 DVD-ROM/Video
01 Audio-CD
02 2.6GB DVD-RAM
03 4.7GB DVD-RAM
04 DVD-R
11
DMR-EH54DEG

Error Occurring Disc State
FL Displays
(Hexadecimal) Description
Disc distinction state Cartridge disc state Cartridge disc state Disc size
00 OK With cartridge Has not been opened yet. 12 cm
10 OK With cartridge Has not been opened yet. 8cm
20 OK With cartridge Has been opened. 12 cm
30 OK With cartridge Has been opened. 8cm
40 OK Bare Has not been opened yet. 12 cm
50 OK Bare Has not been opened yet. 8cm
60 OK Bare Has been opened. 12 cm
70 OK Bare Has been opened. 8cm
80 NG With cartridge Has not been opened yet. 12 cm
90 NG With cartridge Has not been opened yet. 8cm
A0 NG With cartridge Has been opened. 12 cm
B0 NG With cartridge Has been opened. 8cm
C0 NG Bare Has not been opened yet. 12 cm
D0 NG Bare Has not been opened yet. 8cm
E0 NG Bare Has been opened. 12 cm
F0 NG Bare Has been opened. 8cm
12
DMR-EH54DEG

10 SELF-DIAGNOSIS AND SPECIAL MODE SETTING
10.1. SELF-DIAGNOSIS FUNCTIONS
Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display”
when any error has occurred.
U**, H** and F** are stored in memory and held.
You can check latest error code by transmitting [0] [1] of Remote Controller in Service Mode.
Automatic Display on FL will be cancelled when the power is turned off or AC input is turned off during self-diagnosis display is ON.
Error Code Diagnosis contents Description Monitor Display Automatic FL display
U30 Remote control code
error Display appears when main unit and remote controller codes are not matched. No display
“*” is remote controller code of the
main unit.
Display for 5 seconds.
U59 Abnormal inner
temperature detected Display appears when the drive temperature exceeds 70°C.
The power is turned off forcibly.
For 30 minutes after this, all key entries are
disabled. (Fan motor operates at the
highest speed for the first 5 minutes. For
the
remaining 25 minutes, fan motor is also
stopped.) The event is saved in memory as
well.
No display
“U59 is displayed for 30 minutes.
U80 ST Microprocessor
Communication Error on
Timer Bus
Displayed appears when ST Microprocessor
Communication Error on Timer Bus occurs. No display
“U80” is displayed till Power Key is
pressed.
U81 ST Microprocessor
Communication Error on
UART
Displayed appears when ST Microprocessor
Communication Error on UART occurs. No display
“U81” is displayed till Power Key is
pressed.
U99 Hang-up Displayed when communication error has
occurred between Main microprocessor and
Timer microprocessor.
No display
Displayed is left until the [POWER]
key is pressed.
H19 Inoperative fan motor When inoperative fan motor is detected
after powered on, the power is turned off
automatically.
The event is saved in memory.
No display No display
F00 No error information Initial setting for error code in memory
(Error code Initialization is possible with
error code initialization and main unit
initialization.)
No display No display
F58 Drive hardware error When drive unit error is detected, the event
is saved in memory. No display No display
F34 Initialization error when
main microprocessor is
started up for program
recording
When initialization error is detected after
starting up main microprocessor for
program recording, the power is turned off
automatically.
The event is saved in memory.
No display No display
UN-
SUPPORT Unsupported disc error *An unsupported format disc was played, although the drive starts normally.
*The data format is not supported, although
the media type is supported.
*Exceptionally in case of the disc is dirty.
“This disc is
incompatible.”
Display for 5 seconds.
NO READ Disc read error *A disc is flawed or dirty.
*A poor quality failed to start.
*The track information could not be read.
“Cannot read.
Please check the
disc.”
13
DMR-EH54DEG

Error Code Diagnosis contents Description Monitor Display Automatic FL display
HARD ERR Drive error The drive detected a hard error. “DVD drive error.” Display for 5 seconds.
SELF CHECK Restoration operation Since the power cord fell out during a
power failure or operation, it is under
restoration operation.
*It will OK, if a display disappears
automatically. If a display does not
disappear, there is the possibility that
defective Digital P.C.B. / RAM drive.
No display
Full Program 32 programs are already
set. 32 programs are already set. No display
UN-
FORMAT Unformatted disc error You have inserted an unformatted DVD- RAM or DVD-RW that is unformatted or
recorded on other equipment.
If you will use this disc, format is
necessary.
But, all program recorded on this disc
will be deleted.
Format:
This disc is not
formatted properly.
Format the disc in
DISK
MANAGEMENT?
PLEASE WAIT Unit is in termination
process Unit is in termination process now. “BYE” is displayed and power will be turned
off.
In case “Quick Start” of setup menu is ON,
it is displayed in restoration operation for
AC off.
No display
HDD NG Power-ON
Standby Setting of HDD
cannot be done
Power-ON
Standby Setting of HDD is judgedat starting
of deck.
In case of HDD that has not being set, deck
try to set. But if setting cannot be done,
“HDD NG” is displayed.
No display
10.2. SPECIAL MODES SETTING
Item FL display Key operation
Mode name Description Front Key
TEST Mode *All the main unit´s parameters (include
tuner) are initialized. Press [STOP], [CH UP] and [OPEN/CLOSE] keys
simultaneously for five seconds
when power is off.
Rating password The audiovisual level setting password is
initialized to “Level 8”. Open the tray, and press [REC] and [PLAY] simultaneously for 5
seconds.
NOTE:
Drive should be selected to DVD.
Service Mode Setting every kind of modes for servicing.
*Details are described in
“Service Mode”.
When the power is off, press [CH
UP], [OPEN/CLOSE] and [REC]
keys simultaneously for 5 seconds.
Forced disc eject Removing a disc that cannot be ejected.
The tray will open and unit will shift to P-off
mode.
*When Timer REC is ON or EXT-LINK is
ON, execute " Forced disc eject " after
releasing Timer REC or EXT-LINK.
*This command is not effective during
"Child lock" is ON.
While Demonstration Lock is being set, this
Forced disc eject function is not accepted.
If this command was executed while
TIMER REC is being set, TIMER REC
setting will turn to OFF.
The display before execution
leaves. When the power is off, press [STOP] and [CH UP] keys
simultaneously for 5 seconds.
Child lock/unlock Set or release “Child Lock”. Press [ENTER] and [RETURN] by
remote controller simultaneously
until [X-HOLD] is displayed.
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DMR-EH54DEG

Item FL display Key operation
Mode name Description Front Key
NTSC/PAL system select To switch PAL/NTSC alternately. The display before execution
leaves. While the power is on (E-E mode), press [STOP] and [OPEN/CLOSE]
simultaneously for 5 seconds.
Forced power-off When the power button is not effective while
power is ON, turn off the power forcibly.
*When Timer REC is ON or EXT-LINK is
ON, execute “Forced Power-off” after
releasing Timer REC or EXT-LINK.
Display in P-off mode. Press [Power] key over than
10 seconds.
Aging Perform sequence of modes as * Aging
Description shown below continually.
Caution:
All programs in HDD and DVD-RAM disc
will be deleted because Formatting is
done once in Aging process.
Display following the then mode. When the power is ON, press
[STOP], [POWER] and
[OPEN/CLOSE] simultaneously for
over 5 seconds and less than 10
seconds.
NOTE1:
If Unit has not turned into Aging
mode by operations shown above,
execute TEST MODE once and
re-execute operation shown above.
(*All the main unit’s parameters
include tuner are initialized by
TEST mode.)
NOTE2:
If the unit has hung-up because of
pressing keys for over 10 seconds,
once turn off the power, and
re-execute this command.
*When releasing Aging mode,
press [POWER] key.
Aging Contents (Example):
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DMR-EH54DEG

Item FL display Key operation
Mode name Description Front Key
Demonstration
lock/unlock Ejection of the disc is prohibited.
The lock setting is effective until unlocking
the tray and not released by “Main unit
initialization” of service mode.
*When lock the tray.
“LOCK” is displayed for 3 seconds.
When the power is on, press
[STOP] and [POWER] keys
simultaneously for 5 seconds.
*When unlock the tray.
“UNLOCK” is displayed for 3
seconds.
When the power is on, press
[STOP] and [POWER] keys
simultaneously for 5 seconds.
*When press OPEN/CLOSE key
while the tray being locked.
Display “LOCK” for 3 seconds.
Press [OPEN/CLOSE] key while
the tray being locked.
ATP re-execution Re-execute ATP. Display at ATP executing. When the power is on (E-E mode),
press [CH UP] and [CH DOWN]
simultaneously for 5 seconds.
Progressive initialization The progressive setting is initialized to
Interlace. The display before execution
leaves. When the power is on (E-E mode), press [STOP] and [PLAY]
simultaneously for 5 seconds.
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DMR-EH54DEG

10.3. SERVICE MODES
Service mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds.
Item FL display Key operation
Mode name Description (Remote controller key)
Release Items Item of Service Mode executing is cancelled. Press [0] [0] or [Return] in service
mode.
Error Code Display Last Error Code of U/H/F held by Timer is
displayed on FL.
*Details are described in
“Self-Diagnosis Functions”.
Press [0] [1] in service mode
ROM Version Display Region code, MAIN firm version, TIMER firm
version and DRIVE firmware versions are
displayed on FL for five seconds per each
version in order, but ROM version will be left
displayed.
‘’*’’ are version displays.
Press [0] [2] in service mode
White Picture Output White picture is output as component Output
from AV Decoder.
*White picture
(Saturation rate : 100%)
*It is enable to switch Interlace/Progressive
by “I/P switch: [1] [4]”
*Initial mode is “Interlace”. Press [1] [1] in service mode.
Switch Interlace/Progressive Press [1] [4] in White Picture
Output mode.
*I/P are switched alternately.
Magenta Picture Output Magenta picture is output with Component
Output from AV Decoder.
*Magenta picture
(Saturation rate: 100%)
*It is enable to switch Interlace/Progressive
by “I/P switch: [1] [4]”
*Initial mode is “Interlace”. Press [1] [2] in service mode.
Switch Interlace/Progressive Press [1] [4] in Magenta Picture
Output mode.
*I/P are switched alternately.
RTSC Return in XP
(A & V) AV1 input signal is encoded (XP), decoded (XP) and output decoded signal to external
without DISC recording and DISC playback.
Initial mode: EE2/ Interlace/ XP/
Audio 48kHz Press [1] [3] in service mode.
Switch Interlace/Progressive Press [1] [4] in RTSC Return XP
mode.
*I/P are switched alternately.
Audio 44.1 kHz/ 48 kHz Switch Press [2] [4] in RTSC Return XP
mode.
*48 kHz / 44.1 kHz are switched
alternately.
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DMR-EH54DEG

Item FL display Key operation
Mode name Description (Remote controller key)
I/P Switch Switch Interlace and Progressive in EE
mode.
*Initial setting is “Interlace”.
*This command is effective during executing
“White Picture Output”, “Magenta Picture
Output” and “RTSC Return in XP (A & V)”
modes.
Initial mode is Interlace
Switch Interlace/Progressive
Press [1] [4] in I/P Switch mode.
*I/P are switched alternately.
DVB signals out Colourbar picture is output with YC output
from IRD decoder. Press [1] [5] in service mode.
Audio Mute (XTMUTE) Check whether mute is applied normally by
the timer microprocessor. Press [2] [1] in service mode.
Audio Mute (XDMUTE) Check whether mute is applied normally by
the Digital P.C.B.. Press [2] [2] in service mode.
Audio Pattern Output The audio pattern stored in the internal
memory is output
(Lch: 1kHz/-18dB)
(Rch: 400Hz/-18dB)
*Audio sound clock switching operation
of DAC can be confirmed by sub command
[2] [4].
Initial mode (Audio 48kHz) Press [2] [3] in service mode.
Audio 44.1kHz/48kHz switching Press [2] [4] in Audio Pattern
Output mode.
*48 kHz / 44.1 kHz are switched
alternately.
HDD READ inspection Perform a complete read inspection of the
HDD. When the HDD is OK
If the HDD is defective
: Judge of Forward rate.
* When normal (Forward rate is 35
Mbps or more and there is no HDD
error): is Space.
* When Abnormal (Forward rate is
less than 35 Mbps or HDD error
existing): is X.
: Number of what have
spent time for seeking is over
100ms.
* When normal: are spaces.
* When Abnormal: Display Number
of what have spent time fore
seeking over 100 ms.
However, if the number is more
than 100, display [XX].
We judge it is normal that the
number is less than 4.
Press [3] [1] in the service mode.
* When canceling the checking
mode while executing, do “forced
power-off”.
Method: Press the “POWE” button
more than 10 seconds.
Laser Used Time
Indiction Check laser used time (hours) of drive.
●(*****) is the used time display in
hour.
●Laser used time of DVD/ CD in
Playback/Recording mode is
counted.
Press [4] [1] in service mode.
Delete the Laser Used
Time Laser used time stored in the memory of the unit is deleted. Press [9] [5] in service mode.
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DMR-EH54DEG

Item FL display Key operation
Mode name Description (Remote controller key)
RAM Drive Last Error RAM Drive error code display.
*For details about the drive error code, refer
to the Service Manual for the specific RAM
Drive.
*Details are described in
“Service Explorer”.
1. Error Number is displayed for 5
seconds.
2. Time when the error has
occurred is displayed for 5
seconds.
Y: Year
MM: Month
DD: Day
hh: Hour
mm: Minute
ss: Second
3. Last Drive Error (1/2) is
displayed for 5 seconds.
4. Last Drive Error (2/2) is
displayed for 5 seconds.
5. Error occurring Disc type is
displayed for 5 seconds.
Press [4] [2] in service mode.
When “INFO******” is being
displayed, past 19 error histories
can be displayed by
pressing [0] [1] - [1] [9]
6. Disc Maker ID is displayed for 5
seconds. In case that the maker cannot be
identified, display is black out.
7. Factor of Drive Error occurring is
left displayed
Delete the Last Drive
Error Delete the Last Drive Error information stored on the DVD RAM-Drive. Press [9] [6] in service mode.
Turn on all FL/LEDs All segments of FL and all LEDs are turned
on. All segments are turned on. Press [5] [1] in service mode.
PB HIGH Signal Output 8 pin of AV 1 Jack (PB HIGH terminal) is
High (approx. 11V DC). Press [5] [2] in service mode.
PB MIDDLE Signal
Output 8 pin of AV 1 Jack (PB HIGH terminal) is Middle (approx. 5.5V DC). Press [5] [3] in service mode.
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DMR-EH54DEG

Item FL display Key operation
Mode name Description (Remote controller key)
Front connection
inspection Press all front keys and check the
connection between Main P.C.B. and Front
key Switches.
(1) Each time a key is pressed,
segment turned on increases one
by one.
(2) Total umber of keys that have
been pressed.
Press [5] [4] in service mode.
Production Date Display Display the date when the unit was produced.
YYYY: Year
MM: Month
DD: Day
Press [6] [1] in service mode.
Display the accumlated
working time Display the accumulated unit´s working time.
(Indicating unit: Second)
Press [6] [4] in service mode.
Display the Error History Display the Error History stored on the unit. Display reason of error for 5
seconds.
01:
Defect of Digital P.C.B.
(AV DEC / MAIN CPU)
02:
Defect of RAM Drive.
03:
Defect of Disc.
04:
Defect of Digital P.C.B. or
Communication Error.
05:
Defect of Digital P.C.B.
(AV DEC / MAIN CPU)
06:
Defect of HDD.
Display the time when the error
has occurred for 5 seconds..
YY: Year
MM: Month
DD: Day
HH: Hour
MM: Minute
Accumulated working time till
occuring of the error is left
displayed.
(Indicating unit: Second)
Press [6] [5] in service mode.
Then press [0] [1] ~ [1] [9], the
past 19 error histories are
displayed.
Delete the Error History Delete Error History information stored on
the unit. Press [9] [7] in service mode.
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DMR-EH54DEG