Panasonic DMR-EH55P9 User manual

©2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-EH55P9
DMR-EH55PC9
Vol. 1
Colour
(S).......................Silver Type
DVD Recorder
ORDER NO.CHM0605028CE
B24

1 Safety Precaution 3
1.1. General guidelines 3
1.2. Caution for fuse replacement 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
2.4. How to replace the Lithium Battery 7
3 Service Navigation 8
3.1. Service Information 8
3.2. Caution for DivX 8
4 Specifications 9
5 Feature 11
5.1. About DivX 11
5.2. HDAVI Control (HDMI Link) 16
6 Location of Controls and Components 18
7 Operation Instructions 20
7.1. Taking out the Disc from DVD-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 20
8 Service Mode 21
8.1. Self-Diagnosis and Special Mode Setting 21
9 Service Fixture & Tools 30
10 Disassembly and Assembly Instructions 31
10.1. Disassembly Flow Chart 31
10.2. P.C.B. Positions 31
10.3. Top Case 32
10.4. Front Panel 32
10.5. SD Card P.C.B. 32
10.6. RAM/Digital P.C.B. Module 32
10.7. DV Jack P.C.B. 34
10.8. HDD 34
10.9. Rear Panel 35
10.10. Front (L) P.C.B. 36
10.11. Power P.C.B. 36
10.12. Main P.C.B. 37
10.13. HDMI P.C.B. 37
11 Measurements and Adjustments 38
11.1. Service Positions 38
11.2. Caution for Replacing Parts 43
11.3. Standard Inspection Specifications after Making Repairs
45
12 Block Diagram 47
12.1. Power Supply Block Diagram 47
12.2. Analog Video Block Diagram 49
12.3. Analog Audio Block Diagram 50
12.4. Analog Timer Block Diagram 51
12.5. HDMI Block Diagram 52
13 Schematic Diagram 53
13.1. Interconnection Schematic Diagram 53
13.2. Main Power Supply Schematic Diagram 54
13.3. Sub Power Section (Main P.C.B.(1/3)) Schematic Diagram
(P) 55
13.4. A/V I/O (1/4) Section (Main P.C.B.(2/3)) Schematic
Diagram (A) 57
13.5. A/V I/O (2/4) Section (Main P.C.B.(2/3)) Schematic
Diagram (A) 58
13.6. A/V I/O (3/4) Section (Main P.C.B.(2/3)) Schematic
Diagram (A) 59
13.7. A/V I/O (4/4) Section (Main P.C.B.(2/3)) Schematic
Diagram (A) 60
13.8. Timer (1/4) Section (Main P.C.B.(3/3)) Schematic Diagram
(FL) 62
13.9. Timer (2/4) Section (Main P.C.B.(3/3)) Schematic Diagram
(FL) 63
13.10. Timer (3/4) Section (Main P.C.B.(3/3)) Schematic Diagram
(FL) 64
13.11. Timer (4/4) Section (Main P.C.B.(3/3)) Schematic Diagram
(FL) 65
13.12. HDMI Schematic Diagram 67
13.13. SD Card Schematic Diagram 69
13.14. DV Jack Schematic Diagram 70
13.15. Front (L) Schematic Diagram 70
14 Print Circuit Board 71
14.1. Power P.C.B. 71
14.2. Main P.C.B. 72
14.3. HDMI P.C.B. 77
14.4. SD Card P.C.B., Front (L) P.C.B. 78
14.5. DV Jack P.C.B. 79
15 Appendix for Schematic Diagram 81
15.1. Voltage and Waveform Chart 81
16 Parts and Exploded Views 89
16.1. Exploded Views 89
16.2. Replacement Parts List 91
17 Schematic Diagram for printing with A4 98
CONTENTS
Page Page
2
DMR-EH55P9 / DMR-EH55PC9

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.
1.2. Caution for fuse replacement
3
DMR-EH55P9 / DMR-EH55PC9

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).
4
DMR-EH55P9 / DMR-EH55PC9

2.2. Precaution of Laser Diode
5
DMR-EH55P9 / DMR-EH55PC9

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%
6
DMR-EH55P9 / DMR-EH55PC9

2.4. How to replace the Lithium Battery
REPLACEMENT PROCEDURE
1. Remove the Top case, Front Panel, SD Card P.C.B., RAM/Digital P.C.B. Module, DV Jack P.C.B., HDD, Rear Panel, Front
(L) P.C.B. and Main P.C.B. by referring the Disassembling Procedure.
2. Unsolder the Lithium Batteries: B7501 and then replace it into new one.
( As shown in 14.2.4. The Main P.C.B. )
NOTE:
The lithium battery is a critical component. ( Type No.: CR2354-1GUFE Manufactured by Panasonic.)
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in equipment designed specifically for its use.
Replacement batteries must be of the same type and manufacture.
They must be fitted in the same manner and location as the original battery, with the correct polarity contacts observed.
Do not attempt to re-charge the old battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.
7
DMR-EH55P9 / DMR-EH55PC9

3 Service Navigation
3.1. Service Information
3.2. Caution for DivX
8
DMR-EH55P9 / DMR-EH55PC9

4 Specifications
9
DMR-EH55P9 / DMR-EH55PC9

10
DMR-EH55P9 / DMR-EH55PC9

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 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.
11
DMR-EH55P9 / DMR-EH55PC9

12
DMR-EH55P9 / DMR-EH55PC9

13
DMR-EH55P9 / DMR-EH55PC9

14
DMR-EH55P9 / DMR-EH55PC9

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.
15
DMR-EH55P9 / DMR-EH55PC9

5.2. HDAVI Control (HDMI Link)
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 Name
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] ®[Setup] ®[TV Screen] ®
[Functions of HDMI] ®[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.
16
DMR-EH55P9 / DMR-EH55PC9

(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).
17
DMR-EH55P9 / DMR-EH55PC9

6 Location of Controls and Components
18
DMR-EH55P9 / DMR-EH55PC9

19
DMR-EH55P9 / DMR-EH55PC9

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).
20
DMR-EH55P9 / DMR-EH55PC9