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ORDER NO.CHM0611047CE
DVD Recorder
DMR-EX75GN
DMR-EX85GN
Vol. 1
Colour
(S).......................Silver Type
Đ 2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-EX75GN / DMR-EX85GN
CONTENTS
Page Page
1 Safety Precaution 3 11.1. Service Positions 37
1.1. General guidelines 3 11.2. Caution for Replacing Parts 41
2 Warning 4 11.3. Standard Inspection Specifications after Making Repairs 43
2.1. Prevention of Electrostatic Discharge (ESD) to 12 Block Diagram 45
Electrostatic Sensitive (ES) Devices 4 12.1. Power Supply Block Diagram 45
2.2. Precaution of Laser Diode 5 12.2. Analog Video Block Diagram 47
2.3. Service caution based on legal restrictions 6 12.3. Analog Audio Block Diagram 48
3 Service Navigation 7 12.4. Analog Timer Block Diagram 49
3.1. Service Information 7 12.5. HDMI Block Diagram 50
3.2. Caution for DivX 7 13 Schematic Diagram 51
4 Specifications 8 13.1. Interconnection Schematic Diagram 51
5 New Feature 10 13.2. Power Supply Schematic Diagram 52
5.1. About DivX 10 13.3. Main Net Section (Main P.C.B. (1/4)) Schematic Diagram
5.2. HDAVI Control (HDMI Link) 15 (M) 53
6 Location of Controls and Components 17 13.4. AV I/O Section (Main P.C.B. (2/4)) Schematic Diagram
7 Operation Instructions 18 (AV) 54
7.1. Taking out the Disc from DVD-Drive Unit when the Disc 13.5. Nicam Decoder Section (Main P.C.B. (3/4)) Schematic
cannot be ejected by OPEN/CLOSE button 18 Diagram (DE) 55
8 Service Mode 19 13.6. Timer Section (Main P.C.B. (4/4)) Schematic Diagram (T)
8.1. Self-Diagnosis and Special Mode Setting 19 56
9 Service Fixture & Tools 28 13.7. HDMI Schematic Diagram 57
10 Disassembly and Assembly Instructions 29 13.8. Tuner Schematic Diagram 58
10.1. Disassembly Flow Chart 29 13.9. SD Card Schematic Diagram 59
10.2. P.C.B. Positions 29 13.10. Front (L) Schematic Diagram 60
10.3. Top Case 30 13.11. DV Jack Schematic Diagram 60
10.4. Front Panel 30 14 Printed Circuit Board 61
10.5. SD Card P.C.B. 30 14.1. Power P.C.B. 61
10.6. RAM/Digital P.C.B. Module 30 14.2. Main P.C.B. 62
10.7. DV Jack P.C.B. 32 14.3. Main P.C.B. 63
10.8. HDD 32 14.4. HDMI P.C.B. 64
10.9. Rear Panel 33 14.5. Tuner P.C.B. and DV Jack P.C.B. 65
10.10. Power P.C.B. 34 14.6. SD Card P.C.B. and Front (L) P.C.B. 66
10.11. Main P.C.B. and Front (L) P.C.B. 35 15 Appendix for Schematic Diagram 67
10.12. Tuner P.C.B. 35 15.1. Voltage and Waveform Chart 67
10.13. HDMI P.C.B. 35 16 Parts and Exploded Views 75
10.14. Back End P.C.B. 36 16.1. Exploded Views 75
11 Measurements and Adjustments 37 16.2. Replacement Parts List 77
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DMR-EX75GN / DMR-EX85GN
1 Safety Precaution
1.1. General guidelines
1. 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.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. 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 screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1MW and 5.2MW.
When the exposed metal does not have a return path to the
chassis, the reading must be .
Figure 1
1.1.2. Leakage current hot check
(See Figure 1 .)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5kW, 10 watts resistor, in parallel with a 0.15ĩF
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.
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DMR-EX75GN / DMR-EX85GN
2 Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive
(ES) Devices
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).
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DMR-EX75GN / DMR-EX85GN
2.2. Precaution of Laser Diode
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DMR-EX75GN / DMR-EX85GN
2.3. Service caution based on legal restrictions
2.3.1. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of "PbF" is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
· The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of "PbF" is printed on the PCB using the lead free solder.)
· To put lead free solder, it should be well molten and mixed with the original lead free solder.
· Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
· Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt
the lead free solder.
· Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350ą30
degrees C (662ą86°F).
Recommended Lead Free Solder (Service Parts Route.)
· The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
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DMR-EX75GN / DMR-EX85GN
3 Service Navigation
3.1. Service Information
3.2. Caution for DivX
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DMR-EX75GN / DMR-EX85GN
4 Specifications
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DMR-EX75GN / DMR-EX85GN
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DMR-EX75GN / DMR-EX85GN
5 New Feature
5.1. About DivX
5.1.1. General
DivX is a new video compressing format that is applied MPEG4 technology to improve image quality and the compressibility, and
it is developed by the DivXNetworks, Inc., Video file of high resolution and the high picture quality can be made though it is a high
compressibility.
DivX codec is necessary for converting video to DivX file and .playback files made.
5.1.2. Operating Instructions about DivX
Video-on-Demand Content
DivX Video-on-Demand (VOD) content is encrypted for
copyright protection. In order to play DivX VOD content on this
unit, you first need to register the unit.
Follow the on line instructions for purchasing DivX VOD content
to enter unitīs registration code and register unit. Visit
www.divx.com/vod for more information.
Display unitīs registration code.
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DMR-EX75GN / DMR-EX85GN
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DMR-EX75GN / DMR-EX85GN
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DMR-EX75GN / DMR-EX85GN
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DMR-EX75GN / DMR-EX85GN
5.1.3. About DivX DRM
Divx file includes file to which DRM(Digital Right Management) is applied and file not applied.
This item is a content that relates only in treating file to which DRM is applied.
1. Registration Code display function
2. Userīs registration and approval function
3. Rental management function
1) Registration Code display function
Registration Code is alphanumeric character sequence 8bytes inputted as recorder information, in case a use purchases or rent
a DivX DRM file in a network.
Registration code is a character sequence generated at random, and differs in each recorder.
Moreover, Registration code is updated by new user authentication ever if same recorder.
2) Userīs registration and approval function
· Only one user can register for one recorder. If userīs registration is not done with the recorder, DivX file cannot be played
back.
· Userīs registration is performed only when a DivX DRM file is first chosen by recorder
· DivX DRM file that can perform userīs registration is only a file that is registered Registration Code and purchased or rented.
· User authentication is performed whenever DivX DRM file is played back.
Error message is displayed when failing in userīs registration and approval.
3) Rental management function
There are purchase file without registration of number of playback and rental files with registration of number of playback as
Divx file. Number of playback of rental file is counted by the recorder.
When rental file is played, remaining number of times that can be played back will be shown to users, recorder requests users
to input yes or no.
Following specifications have been installed for the rental files in the purpose to clarify the count condition of number of times
of playback.
· Conditions on counting number of times of play.
1. When a file was opened successfully. (At the time of playback start)
2. When you have done review operation from the start. (Skip to file head)
- At this time, remaining number of times that can be played back and confirmation message [Do you play really?] are
displayed.
- When the playback point has been skipped to the top of title, number of playback is not counted if the top of title was
not recognized.
- Even if the power failure occurs after start of playback of rental file, number of times of playback counted at start of
the playback is held as it is. (Though playback stops by power failure, the number of times of playback is not
counted.)
When it has reached head of title, the playback is ended, and screen becomes DivX menu (There is no resume) and then
cursor is located on title that has been played back.
Then if the same file was continuously played back, it begins to playback from the file head.
Note:
Above mentioned stored user information and number of times of playback are not erased by update of firmware or by
initialization by test mode.
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DMR-EX75GN / DMR-EX85GN
5.2. HDAVI Control (HDMI Link)
Pin Name
Linked operations by HDAVI Control (HDMI Link)
5.2.1. What is HDMI
HDMI is abbreviation of [High-Definition Multimedia Interface],
and is digital interface standard for next generation TV
corresponding to follows.
1. Non-compressing high quality digital image
2. Digital transmission of multi channel digital audio.
3. Two way communication of control signal of control
straightening between equipments
Pin layout of plug of HDMI cable seen from outside.
5.2.2. Link functions
Functions
(1) Automatic Input switch
(2) Link of Power
In case setting of [FUNCTIONS] Ū [Setup] Ū [TV Screen] Ū
[Functions of HDMI] Ū [Control with HDMI] are on, all above
equipments Link functions are effective.
5.2.3. Outline of Equipments Linked
functions
(1) Automatic Input switch
At starting of playback/ GUI display by DIGA, it turns on
power of VIErA, and it displays picture of DIGA onto screen
of VIErA.
Starting of playback:
It includes automatic playback of DVD-Video and so on.
And it includes picture of screen saver too.
GUI display:
FUNCTIONS, DIRECT NAVIGATOR, TV PROGRAM,
PROG/CHECK, Timer Recording, G-code, Initial setting,
Playback setting, Play list, SD/DVD guide, Warning
messages that user can select and so on.
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DMR-EX75GN / DMR-EX85GN
(2) Power Link
Power of DIGA is turned off linking to POWER OFF of
VIErA.
· Power of DIGA is not turned on linking to POWER ON
of VIErA.
· It is limited in following cases that DIGA links to POWER
OFF of VIErA.
1. During EE display (While Timer recording is being
executed/ Functions is being displayed are included.)
2. Case that DIGA is playing back (only North America/
Japan)
However except cases below.
· During EE display, but manual recording is being
executing/ during EXT_Link recording.
· During Tray is being opened.
· Case that DIGA is in status that power cannot turn off
(during dubbing, during finalize).
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DMR-EX75GN / DMR-EX85GN
6 Location of Controls and Components
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DMR-EX75GN / DMR-EX85GN
7 Operation Instructions
7.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be
ejected by OPEN/CLOSE button
7.1.1. Forcible Disc Eject
7.1.1.1. 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.
7.1.1.2. 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.
7.1.2. When the Forcible Disc Eject can not be done.
1. Turn off the power and pull out AC cord.
2. Remove the Top Case.
3. Put deck so that bottom can be seen.
4. Slide SLIDE CAM by Eject Pin (JZJ0484) or minus screw driver (small) in the direction of arrow to eject tray slightly.
5. Put deck upward, and push out Tray by Eject Pin (JZS0484) or minus screw driver (small).
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DMR-EX75GN / DMR-EX85GN
8 Service Mode
8.1. Self-Diagnosis and Special Mode Setting
8.1.1. 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 No display
controller codes are not matched.
"*" is remote controller code of the
main unit.
Display for 5 seconds.
U59 Abnormal inner temperature Display appears when the drive temperature No display
detected 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 "U59 is displayed for 30 minutes.
speed for the first 5 minutes. For the
remaining 25 minutes, fan motor is also
stopped.) The event is saved in memory as
well.
U61 The unit is carrying out its No display
recovery process.
U71 HDMI incompatible error Display this error when the equipment No display
(HDCP incompatible) (compatible with DVI such as TV, amplifier
etc.) connected to the unit by HDMI is
incompatible with HDCP.
*HDCP=High-bandwidth Digital Content
Protection
U72 HDMI connection error This error is displayed when there are any
(communication error) communication problems with the unit and the
equipments (TV, amplifier etc.) connected to
the unit by HDMI. (or when there is a problem
with the HDMI cable) U72 display disappears when
error has been solved by Power
OFF/ON of connecting equipment
or by inserting/removing of HDMI
cable.
U73 HDMI connection error When authentication error occurs while the No display
(authentication error) equipments (TV, amplifier etc.) are connected
by HDMI. (or when there is a problem with the
HDMI cable)
U72 display disappears when
error has been solved by Power
OFF/ON of connecting equipment
or by inserting/removing of HDMI
cable.
U80 ST Microprocessor Display appears when ST Microprocessor No display
Communication Error on Timer Communication Error on Timer Bus occurs.
Bus
"U80" is displayed till Power Key is
pressed.
U81 ST Microprocessor Display appears when ST Microprocessor No display
Communication Error on UART Communication Error on DART occurs.
"U81" is displayed till Power Key is
pressed.
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DMR-EX75GN / DMR-EX85GN
Error Code Diagnosis contents Description Monitor Display Automatic FL display
U88 The unit is carrying out its No display
recovery process.
U99 Hang-up Displayed when communication error has No display
occurred between Main microprocessor and
Timer microprocessor.
Displayed is left until the
[POWER] key is pressed.
H19 Inoperative fan motor When inoperative fan motor is detected after No display No display
powered on, the power is turned off
automatically.
The event is saved in memory.
F00 No error information Initial setting for error code in memory No display No display
(Error code Initialization is possible with error
code initialization and main unit initialization.)
F58 Drive hardware error When drive unit error is detected, the event is No display No display
saved in memory.
F34 Initialization error when main When initialization error is detected after No display No display
microprocessor is started up starting up main microprocessor for program
for program recording recording, the power is turned off
automatically.
The event is saved in memory.
F74 HDMI Device Key HDMI connection could not be authenticated No display
Communication error. due to a transfer malfunction.
Factor of HDMI Device key-road failure
· When HDMI LSI is damaged.
· When the bus line of I2C doesnīt operate
normally.
· When device key information recorded is
damaged.
F75 HDMI Device Key Information HDMI connection could not be authenticated No display
error due to an internal data malfunction.
Factor of HDMI Device key-road failure
· When HDMI LSI is damaged.
· When the bus line of I2C doesnīt operate
normally.
· When device key information recorded is
damaged.
UNSUPPO Unsupported disc error *An unsupported format disc was played, "This disc is
RT although the drive starts normally. incompatible."
*The data format is not supported, although
the media type is supported.
*Exceptionally in case of the disc is dirty.
Display for 5 seconds.
NO READ Disc read error *A disc is flawed or dirty. "Cannot read.
*A poor quality failed to start. Please check the
*The track information could not be read. disc."
HARD Drive error The drive detected a hard error. "DVD drive error." Display for 5 seconds.
ERR
SELF Restoration operation Since the power cord fell out during a power No display
CHECK 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.
PLEASE Unit is in termination process Unit is in termination process now. No display
WAIT "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.
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DMR-EX75GN / DMR-EX85GN
Error Code Diagnosis contents Description Monitor Display Automatic FL display
UNFORM Unformatted disc error You have inserted an unformatted DVD-RAM
AT or DVD-RW that is unformatted or recorded
on other equipment.
IR ERR IR communication error [IR ERR] is displayed when communication No display
between Timer microprocessor and IR
microprocessor fails.
No REC Recording is impossible [No REC] is displayed when recording is No display
impossible due to the defect, dirt or wound of
media.
HDD [HDD ERR] is displayed when a) When normal start up was failed. No display
ERROR start up of HDD was failed. b) When start up at HDD boot was failed.
(Except error of setting of c) When start up from state of P-OFF was
Power on Stand-by) failed.
d) When start up from state of HDD SLEEP
was failed.
[HDD ERR] is displayed when above each
start up of HDD was failed.
*In case b), tray opens automatically and
[HDDERR] is displayed until version up disc is
inserted.
HDD NG Power on Stand-by setting [HDD NG] is displayed when power on Stand- No display
error by setting of HDD is NG or when HDD which
power on Stand-by is not set to is used.
Please try to replace HDD with junine HDD as
service parts.
8.1.2. Special Modes Setting
Item FL display Key operation
Mode name Description Front Key
TEST Mode *All the main unitīs parameters (include tuner) Press [STOP], [CH UP] and
are initialized. [OPEN/CLOSE] keys
simultaneously for five seconds
when power is off.
Rating password The audiovisual level setting password is Open the tray, and press [REC] and
initialized to "Level 8". [PLAY] simultaneously for 5
seconds.
Service Mode Setting every kind of modes for servicing. When the power is off, press [CH
*Details are described in "8.1.3. Service UP], [OPEN/CLOSE] and [REC]
Mode at a glance". keys simultaneously for 5 seconds.
Forced disc eject Removing a disc that cannot be ejected. The display before execution When the power is off, press
The tray will open and unit will shift to P-off leaves. [STOP] and [CH UP] keys
mode. simultaneously for 5 seconds.
*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.
Child lock/unlock Set or release "Child Lock". Press [ENTER] and [RETURN] by
remote controller simultaneously
until [X-HOLD] is displayed.
NTSC/PAL system select To switch PAL/NTSC altemately. The display before execution While the power is on (E-E mode),
leaves. press [STOP] and [OPEN/CLOSE]
simultaneously for 5 seconds.
Forced power-off When the power button is not effective while Display in P-off mode. Press [Power] key over than 10
power is ON, turn off the power forcibly. seconds.
*When Timer REC is ON or EXT-LINK is ON,
execute "Forced Power-off" after releasing
Timer REC or EXT-LINK.
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DMR-EX75GN / DMR-EX85GN
Item FL display Key operation
Mode name Description Front Key
Aging Perform sequence of modes as * Aging Display following the then mode. When the power is ON, press
Description shown below continually. [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):
Demonstration Ejection of the disc is prohibited. *When lock the tray. When the power is on, press
lock/unlock The lock setting is effective until unlocking the [STOP] and [POWER] keys
tray and not released by "Main unit simultaneously for 5 seconds.
initialization" of service mode.
"LOCK" is displayed for 3 seconds.
*When unlock the tray. When the power is on, press
[STOP] and [POWER] keys
simultaneously for 5 seconds.
"UNLOCK" is displayed for 3
seconds.
*When press OPEN/CLOSE key Press [OPEN/CLOSE] key while the
while the tray being locked. tray being locked.
Display "LOCK" for 3 seconds.
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.
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DMR-EX75GN / DMR-EX85GN
Item FL display Key operation
Mode name Description Front Key
Progressive initialization The progressive setting is initialized to The display before execution When the power is on (E-E mode),
Interlace. leaves. press [STOP] and [PLAY]
simultaneously for 5 seconds.
8.1.3. Service Modes at a glance
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 Press [0] [1] in service mode
displayed on FL.
*Details are described in "8.1.1. Self-
Diagnosis Functions".
If any error history dose not exist,
[F00] is displayed.
ROM Version Display 1. Region code (displayed for 5 sec.) Press [0] [2] in service mode
2. Main firm version (displayed for 5 sec.)
3. Timer firm version (displayed for 5 sec.)
4. Drive firm version (displayed for 5 sec.)
5. ROM correction version (displayed for 5
sec.)
6. ST Microprocessor version (left displayed)
`' * '' are version displays.
White Picture Output White picture is output as component Output *Initial mode is "Interlace". Press [1] [1] in service mode.
from AV Decoder.
*White picture
(Saturation rate : 100%)
*It is enable to switch Interlace/Progressive by
"I/P switch: [1] [4]" 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 *Initial mode is "Interlace". Press [1] [2] in service mode.
Output from AV Decoder.
*Magenta picture
(Saturation rate: 100%)
*It is enable to switch Interlace/Progressive by
"I/P switch: [1] [4]" Switch Interlace/Progressive Press [1] [4] in Magenta Picture
Output mode.
*I/P are switched alternately.
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DMR-EX75GN / DMR-EX85GN
Item FL display Key operation
Mode name Description (Remote controller key)
RTSC Return in XP AV1 input signal is encoded (XP), decoded Initial mode: EE2/ Interlace/ XP/ Press [1] [3] in service mode.
(A & V) (XP) and output decoded signal to external Audio 48kHz
without DISC recording and DISC playback.
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.
I/P Switch Switch Interlace and Progressive in EE mode. Initial mode is Interlace Press [1] [4] in I/P Switch mode.
*Initial setting is "Interlace". *I/P are switched alternately.
*This command is effective during executing
"White Picture Output", "Magenta Picture
Output" and "RTSC Return in XP (A & V)"
modes. Switch Interlace/Progressive
Audio Mute (XTMUTE) Check whether mute is applied normally by Press [2] [1] in service mode.
the timer microprocessor.
Audio Mute (XDMUTE) Check whether mute is applied normally by Press [2] [2] in service mode.
the Digital P.C.B..
Audio Pattern Output The audio pattern stored in the internal Initial mode (Audio 48kHz) Press [2] [3] in service mode.
memory is output
(Lch: 1kHz/-18dB)
(Rch: 400Hz/-18dB)
*Audio sound clock switching operation of
DAC can be confirmed by sub command [2] Audio 44.1kHz/48kHz switching Press [2] [4] in Audio Pattern Output
[4]. mode.
*48 kHz / 44.1 kHz are switched
alternately.
HDD READ inspection Perform a complete read inspection of the When the HDD is OK Press [3] [1] in service mode.
HDD. *When canceling the checking
mode while executing, do "forced
power-off".
Method:
If the HDD is defective Press the "POWER" button more
than 10 seconds.
Laser Used Time Check laser used time (hours) of drive. Press [4] [1] in service mode.
Indiction
l(*****) is the used time display in
hour.
lLaser used time of DVD/ CD in
Playback/Recording mode is
counted.
24
DMR-EX75GN / DMR-EX85GN
Item FL display Key operation
Mode name Description (Remote controller key)
Delete the Laser Used Laser used time stored in the memory of the Press [9] [5] in service mode.
Time unit is deleted.
RAM Drive Last Error RAM Drive error code display. 1. Error Number is displayed for 5 Press [4] [2] in service mode.
*For details about the drive error code, refer seconds. When "INFO******" is being
to the Service Manual for the specific RAM displayed, past 19 error histories
Drive. can be displayed by pressing [0] [1]
- [1] [9]
2. Time when the error has occurred
is displayed for 5 seconds.
DD: Day
hh: Hour
mm: Minute
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.
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 Delete the Last Drive Error information stored Press [9] [6] in service mode.
Error on the DVD RAM-Drive.
Laser power confirmation Drive state is judged based on difference 1. into RAM
between laser power value at shipping and Drive in service mode. (Other
present laser power value. media are assumed to be non-
correspondence.)
2. Press [4] [4].
If DVD-RAM disc in not inserted,
[NO DISC] is displayed.
If power value study was filed,
[ERROR] is displayed.
Turn on all FL/LEDs All segments of FL and all LEDs are turned All segments are turned on. Press [5] [1] in service mode.
on.
PB HIGH Signal Output 8 pin of AV 1 Jack (PB HIGH terminal) is High Press [5] [2] in service mode.
(approx. 11V DC).
PB MIDDLE Signal 8 pin of AV 1 Jack (PB HIGH terminal) is Press [5] [3] in service mode.
Output Middle (approx. 5.5V DC)
25
DMR-EX75GN / DMR-EX85GN
Item FL display Key operation
Mode name Description (Remote controller key)
Front connection Press all front keys and check the connection Press [5] [4] in service mode.
inspection 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.
Production Date Display Display the date when the unit was produced. Press [6] [1] in service mode.
YY: Year
MM: Month
DD: Day
Display the accumlated Display the accumulated unitīs working time. Press [6] [4] in service mode.
working time
(Indicating unit: Second)
Display the Error History Display the Error History stored on the unit. Display reason of error for 5 Press [6] [5] in service mode.
seconds. Then press [0] [1] ~ [1] [9], the past
19 error histories are displayed.
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.
DD: Day
hh: Hour
mm: Minute