Panasonic DMR-EH55EC User manual

© 2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-EH55EC
DMR-EH55EP
DMR-EH56EG
Vol. 1
Colour
(S).......................Silver Type
(K).......................Black Type
DVD Recorder
ORDER NO.DSD0603003CE

1 Safety Precaution 3
1.1. General guidelines 3
2 Warning 4
2.1. Prevention of Electrostatic Discharge (ESD) to
Electrostatic Sensitive (ES) Devices 4
2.2. Precaution of Laser Diode 5
2.3. Service caution based on legal restrictions 6
3 Service Navigation 7
3.1. Service Information 7
3.2. Caution for DivX 7
4 Specifications 8
5 New Feature 10
5.1. About DivX 10
6 Location of Controls and Components 15
7 Operation Instructions 17
7.1. Taking out the Disc from DVD-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 17
8 Service Mode 18
8.1. Self-Diagnosis and Special Mode Setting 18
9 Service Fixture & Tools 27
10 Disassembly and Assembly Instructions 28
10.1. Disassembly Flow Chart 28
10.2. P.C.B. Positions 28
10.3. Top Case 29
10.4. Front Panel 29
10.5. SD Card P.C.B. 29
10.6. RAM/Digital P.C.B. Module 29
10.7. DV Jack P.C.B. 31
10.8. HDD 31
10.9. Rear Panel 32
10.10. Power P.C.B. 33
10.11. Main P.C.B. and Front (L) P.C.B. 34
10.12. Tuner P.C.B. 34
11 Measurements and Adjustments 35
11.1. Service Positions 35
11.2. Caution for Replacing Parts 39
11.3. Standard Inspection Specifications after Making Repairs
41
12 Block Diagram 43
12.1. Power Supply Block Diagram 43
12.2. Analog Video Block Diagram 45
12.3. Analog Audio Block Diagram 46
12.4. Analog Timer Block Diagram 47
13 Schematic Diagram 49
13.1. Interconnection Schematic Diagram 49
13.2. Power Supply Schematic Diagram 50
13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 51
13.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 52
13.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 53
13.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 54
13.7. A/V I/O (1/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 56
13.8. A/V I/O (2/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 57
13.9. A/V I/O (3/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 58
13.10. A/V I/O (4/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 59
13.11. Nicam Decoder Section (Main P.C.B. (3/4)) Schematic
Diagram (DE) 61
13.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 62
13.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 63
13.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 64
13.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 65
13.16. Tuner Pack Schematic Diagram 66
13.17. SD Card Schematic Diagram 67
13.18. Front (L) Schematic Diagram 68
13.19. DV Jack Schematic Diagram 68
14 Printed Circuit Board 69
14.1. Power P.C.B. 69
14.2. Main P.C.B. 70
14.3. Tuner P.C.B. and DV Jack P.C.B. 75
14.4. SD Card P.C.B. and Front (L) P.C.B. 76
15 Appendix for Schematic Diagram 77
15.1. Voltage and Waveform Chart 77
16 Parts and Exploded Views 83
16.1. Exploded Views 83
16.2. Replacement Parts List 85
CONTENTS
Page Page
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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
1MWand 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 0.15µF
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 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.
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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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2.2. Precaution of Laser Diode
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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 350±30
degrees C (662±86°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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3 Service Navigation
3.1. Service Information
3.2. Caution for DivX
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4 Specifications
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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 unit´s registration code and register unit. Visit
www.divx.com/vod for more information.
Display unit´s registration code.
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.
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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.User´s 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) User´s registration and approval function
·
· ·
· Only one user can register for one recorder. If user´s registration is not done with the recorder, DivX file cannot be played
back.
·
· ·
· User´s registration is performed only when a DivX DRM file is first chosen by recorder
·
· ·
· DivX DRM file that can perform user´s 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 user´s 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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6 Location of Controls and Components
Followings are the Location of Controls and Components for DMR-EH55EC and DMR-EH56EG as a sample.
For other model, refer to each Operation Instructions.
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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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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
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.
U61 The unit is carrying out its
recovery process. No display
U88 The unit is carrying out its
recovery process. No display
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
UNSUPPO
RT 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.”
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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
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
UNFORM
AT Unformatted disc error You have inserted an unformatted DVD-RAM or DVD-RW that is unformatted or recorded
on other equipment.
HDD
ERROR [HDD ERR] is displayed when start up of HDD was failed.
(Except error of setting of
Power on Stand-by)
a) When normal start up was failed.
b) When start up at HDD boot was failed.
c) When start up from state of P-OFF was
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.
No display
HDD NG Power on Stand-by setting
error [HDD NG] is displayed when power on Stand- 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.
No display
8.1.2. 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.
Service Mode Setting every kind of modes for servicing.
*Details are described in “8.1.3. Service
Mode at a glance”.
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.
The display before execution
leaves. When the power is off, press [STOP] and [CH UP] keys
simultaneously for 5 seconds.
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Item FL display Key operation
Mode name Description Front Key
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
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. 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-EH55EC / DMR-EH55EP / DMR-EH56EG