Text preview for : DMR-EH55EE.pdf part of PANASONIC DMR-EH55 SERVICE MANUAL
Back to : DMR-EH55.part1.rar | Home
ORDER NO.CHM0604016CE
DVD Recorder
DMR-EH55EE DMR-EH55GC DMR-EH55GCS DMR-EH55GN
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-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
CONTENTS
Page
1 Safety Precaution 1.1. General guidelines 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices 2.2. Precaution of Laser Diode 2.3. Service caution based on legal restrictions 3 Service Navigation 3.1. Service Information 3.2. Caution for DivX 4 Specifications 5 New Feature 5.1. About DivX 6 Location of Controls and Components 7 Operation Instructions 7.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 8 Service Mode 8.1. Self-Diagnosis and Special Mode Setting 9 Service Fixture & Tools 10 Disassembly and Assembly Instructions 10.1. Disassembly Flow Chart 10.2. P.C.B. Positions 10.3. Top Case 10.4. Front Panel 10.5. SD Card P.C.B. 10.6. RAM/Digital P.C.B. Module 10.7. DV Jack P.C.B. 10.8. HDD 10.9. Rear Panel 10.10. Power P.C.B. 10.11. Main P.C.B. and Front (L) P.C.B. 10.12. Tuner P.C.B. 11 Measurements and Adjustments 11.1. Service Positions 11.2. Caution for Replacing Parts 17 18 18 27 28 28 28 29 29 29 29 31 31 32 33 34 34 35 35 39 4 5 6 7 7 7 8 10 10 15 17 3 3 4 13.1. Interconnection Schematic Diagram 13.2. Power Supply Schematic Diagram 13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 13.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 13.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 13.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 13.7. A/V I/O (1/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 13.8. A/V I/O (2/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 13.9. A/V I/O (3/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 13.10. A/V I/O (4/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 13.11. Nicam Decoder Section (Main P.C.B. (3/4)) Schematic Diagram (DE) 13.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 13.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 13.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 13.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 13.16. Tuner Pack Schematic Diagram 13.17. SD Card Schematic Diagram 13.18. Front (L) Schematic Diagram 13.19. DV Jack Schematic Diagram 14 Printed Circuit Board 14.1. Power P.C.B. 14.2. Main P.C.B. 14.3. Tuner P.C.B. and DV Jack P.C.B. 14.4. SD Card P.C.B. and Front (L) P.C.B. 15 Appendix for Schematic Diagram 15.1. Voltage and Waveform Chart 16 Parts and Exploded Views 16.1. Exploded Views 16.2. Replacement Parts List 65 66 67 68 68 69 69 70 75 76 77 77 83 83 85 64 63 62 61 59 58 57 56 54 53 52 51
Page
49 50
11.3. Standard Inspection Specifications after Making Repairs 41 12 Block Diagram 12.1. Power Supply Block Diagram 12.2. Analog Video Block Diagram 12.3. Analog Audio Block Diagram 12.4. Analog Timer Block Diagram 13 Schematic Diagram 43 43 45 46 47 49
2
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
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.
3
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
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-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
2.2.
Precaution of Laser Diode
5
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
2.3.
2.3.1.
Service caution based on legal restrictions
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%
6
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
3 Service Navigation
3.1. Service Information
3.2.
Caution for DivX
7
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
4 Specifications
8
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
9
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
5 New Feature
5.1.
5.1.1.
About DivX
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.
10
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
12
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
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.
14
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
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.
15
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
16
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
7 Operation Instructions
7.1.
7.1.1. 7.1.1.1. 7.1.1.2.
Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button
Forcible Disc Eject When the power can be turned off. When the power can not be turned off.
1. Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 5 seconds.
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).
17
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
8 Service Mode
8.1.
8.1.1.
Self-Diagnosis and Special Mode Setting
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 U30 Remote control code error Description Monitor Display Display appears when main unit and remote No display controller codes are not matched. Automatic FL display
"*" is remote controller code of the main unit. Display for 5 seconds. U59 temperature Display appears when the drive temperature No display 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. The unit is carrying out its No display recovery process. Abnormal inner detected
"U59 is displayed for 30 minutes.
U61
U88
The unit is carrying out its recovery process.
No display
U99
Hang-up
Displayed when communication error has No display occurred between Main microprocessor and Timer microprocessor. Displayed is left until [POWER] key is pressed. No display the
When inoperative fan motor is detected after 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 (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 saved in memory. F34 Initialization error when main When initialization error is detected after 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. UNSUPPO Unsupported disc error *An unsupported format disc was played, RT 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.
H19
Inoperative fan motor
No display
No display
No display
No display No display
No display No display
"This disc incompatible."
is
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."
18
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Error Code Diagnosis contents HARD Drive error ERR
Description The drive detected a hard error.
Monitor Display "DVD drive error."
Automatic FL display Display for 5 seconds.
SELF CHECK
Restoration operation
PLEASE WAIT
Unit is in termination process
Since the power cord fell out during a power No display 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. Unit is in termination process now. No display "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. You have inserted an unformatted DVD-RAM or DVD-RW that is unformatted or recorded on other equipment.
UNFORM Unformatted disc error AT
IR ERR
IR communication error
[IR ERR] is displayed when communication No display between Timer microprocessor and IR microprocessor fails. [No REC] is displayed when recording is No display impossible due to the defect, dirt or wound of media. a) When normal start up was failed. No display 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. setting [HDD NG] is displayed when power on Stand- No display 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 REC
Recording is impossible
HDD ERROR
[HDD ERR] is displayed when start up of HDD was failed. (Except error of setting of Power on Stand-by)
HDD NG
Power on error
Stand-by
8.1.2.
Special Modes Setting
Item FL display Description *All the main unitīs parameters (include tuner) are initialized. Key operation Front Key Press [STOP], [CH UP] and [OPEN/CLOSE] keys simultaneously for five seconds when power is off. Open the tray, and press [REC] and [PLAY] simultaneously for 5 seconds. When the power is off, press [CH UP], [OPEN/CLOSE] and [REC] keys simultaneously for 5 seconds.
Mode name TEST Mode
Rating password
The audiovisual level setting password is initialized to "Level 8". Setting every kind of modes for servicing. *Details are described in "8.1.3. Service Mode at a glance".
Service Mode
19
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Mode name Forced disc eject
FL display Description Removing a disc that cannot be ejected. The display before The tray will open and unit will shift to P-off leaves. 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.
Item
Key operation Front Key execution 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. The display leaves. before execution While the power is on (E-E mode), press [STOP] and [OPEN/CLOSE] simultaneously for 5 seconds.
NTSC/PAL system select To switch PAL/NTSC altemately.
Forced power-off
Aging
When the power button is not effective while Display in P-off mode. 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. Perform sequence of modes as * Aging Display following the then mode. Description shown below continually.
Press [Power] key over than 10 seconds.
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 reexecute 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 reexecute this command. *When releasing Aging mode, press [POWER] key.
Aging Contents (Example):
20
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Item Mode name Demonstration lock/unlock
FL display
Description Ejection of the disc is prohibited. *When lock the tray. The lock setting is effective until unlocking the tray and not released by "Main unit initialization" of service mode.
Key operation Front Key When the power is on, press [STOP] and [POWER] keys simultaneously for 5 seconds.
"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.
ATP re-execution
Re-execute ATP.
Display "LOCK" for 3 seconds. 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 The display Interlace. leaves.
before
execution When the power is on (E-E mode), press [STOP] and [PLAY] simultaneously for 5 seconds.
8.1.3.
Service Modes at a glance
Item FL display Key operation (Remote controller key) Press [0] [0] or [Return] in service mode. Press [0] [1] in service mode
Service mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds.
Mode name Release Items Description Item of Service Mode executing is cancelled.
Error Code Display
Last Error Code of U/H/F held by Timer is displayed on FL. *Details are described in "8.1.1. SelfDiagnosis Functions".
If any error history dose not exist, [F00] is displayed. ROM Version Display 1. 2. 3. 4. 5. Region code (displayed for 5 sec.) Main firm version (displayed for 5 sec.) Timer firm version (displayed for 5 sec.) Drive firm version (displayed for 5 sec.) ROM correction version (left displayed) Press [0] [2] in service mode
`' * '' are version displays.
21
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Mode name White Picture Output
FL display Description White picture is output as component Output *Initial mode is "Interlace". from AV Decoder. *White picture (Saturation rate : 100%) *It is enable to switch Interlace/Progressive by Switch Interlace/Progressive "I/P switch: [1] [4]"
Item
Key operation (Remote controller key) Press [1] [1] in service mode.
Press [1] [4] in White Picture Output mode. *I/P are switched alternately. Press [1] [2] in service mode.
Magenta Picture Output
Magenta picture is output with Component *Initial mode is "Interlace". Output from AV Decoder. *Magenta picture (Saturation rate: 100%) *It is enable to switch Interlace/Progressive by Switch Interlace/Progressive "I/P switch: [1] [4]"
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 Initial mode: EE2/ Interlace/ XP/ Press [1] [3] in service mode. (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. Press [2] [4] in RTSC Return XP mode. *48 kHz / 44.1 kHz are switched alternately. Press [1] [4] in I/P Switch mode. *I/P are switched alternately.
Audio 44.1 kHz/ 48 kHz Switch
I/P Switch
Switch Interlace and Progressive in EE mode. Initial mode is Interlace *Initial setting is "Interlace". *This command is effective during executing "White Picture Output", "Magenta Picture Output" and "RTSC Return in XP (A & V)" Switch Interlace/Progressive modes.
Audio Mute (XTMUTE)
Check whether mute is applied normally by the timer microprocessor. Check whether mute is applied normally by the Digital P.C.B.. The audio pattern stored in the internal Initial mode (Audio 48kHz) 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 [4].
Press [2] [1] in service mode.
Audio Mute (XDMUTE)
Press [2] [2] in service mode.
Audio Pattern Output
Press [2] [3] in service mode.
Press [2] [4] in Audio Pattern Output mode. *48 kHz / 44.1 kHz are switched alternately.
22
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Item Mode name HDD READ inspection
FL display
Description Perform a complete read inspection of the When the HDD is OK HDD.
If the HDD is defective
Key operation (Remote controller key) Press [3] [1] in service mode. *When canceling the checking mode while executing, do "forced power-off". Method: Press the "POWER" button more than 10 seconds.
Laser Used Indiction
Time Check laser used time (hours) of drive.
Press [4] [1] in service mode.
l(*****) is the used time display in hour. lLaser used time of DVD/ CD in Playback/Recording mode is counted. Delete the Laser Used Laser used time stored in the memory of the Time unit is deleted. Press [9] [5] in service mode.
23
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Mode name RAM Drive Last Error
FL display Key operation Description (Remote controller key) 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.
Item
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 Error on the DVD RAM-Drive. Laser power confirmation Drive state is judged based on difference between laser power value at shipping and present laser power value.
Press [9] [6] in service mode.
1.
into RAM Drive in service mode. (Other media are assumed to be noncorrespondence.)
2. Press [4] [4].
Turn on all FL/LEDs PB HIGH Signal Output
If DVD-RAM disc in not inserted, [NO DISC] is displayed. If power value study was filed, [ERROR] is displayed. All segments of FL and all LEDs are turned All segments are turned on. Press [5] [1] in service mode. on. 8 pin of AV 1 Jack (PB HIGH terminal) is High Press [5] [2] in service mode. (approx. 11V DC). Press [5] [3] in service mode.
PB MIDDLE Output
Signal 8 pin of AV 1 Jack (PB HIGH terminal) is Middle (approx. 5.5V DC)
24
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Item Mode name Description Front connection Press all front keys and check the connection inspection between Main P.C.B. and Front key Switches.
FL display
Key operation (Remote controller key) Press [5] [4] in service mode.
(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. working time (Indicating unit: Second) Display reason of error seconds. Press [6] [4] in service mode.
Display the Error History Display the Error History stored on the unit.
for
5 Press [6] [5] in service mode. 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. Communication Error. 05: Defect of Digital P.C.B. (AV DEC / MAIN CPU) 06: Defect of HDD.
or
Display the time when the error has occurred for 5 seconds.
DD: Day hh: Hour mm: Minute Accumulated occuring of displayed.
working time till the error is left
(Indicating unit: Second) Delete the Error History Delete Error History information stored on the unit. Delete Error History information stored on the When the WRITE check is OK. unit. Press [9] [7] in service mode.
SD card WRITE check
When the WRITE check is NG.
Insert a SD card to SD card slot, and press [7] [4] in service mode. *Insert SD card while the power is off. *Check for [CARD SD] display on the FL display and go on the procedure.
*Note:
The image stored in the SD card will be erased.
25
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Item Mode name AV4(V)/AV1(RGB) Setting AV2(Y/C)/AV1(V) Setting AV2(V)/AV1(Y/C) Setting AV2(RGB)/AV1(V) Setting P50(H) Output Description I/O Set input to AV4 (V) and set output to AV1 (RGB) for I/O checking I/O Set input to AV2 (Y/C) and set output to AV1 (V) for I/O checking I/O Set input to AV2 (V) and set output to AV1 (Y/C) for I/O checking I/O Set input to AV2 (RGB) and set output to AV1 (V) for I/O checking Timer Microprocessor IC7501-76 output High When OK. signal for AV1-pin 10 passing through inverter (approx. 0V DC at AV1-pin 10). When NG.
FL display
Key operation (Remote controller key) Press [8] [0] in service mode.
Press [8] [1] in service mode.
Press [8] [2] in service mode.
Press [8] [3] in service mode.
Press [8] [4] in service mode.
P50(L) Output
Timer Microprocessor IC7501-76 output Low When OK. signal for AV1-pin 10 passing through inverter (approx. 4.4V DC at AV1-pin 10). When NG.
Press [8] [5] in service mode.
Tray OPEN/CLOSE Test The RAM drive tray is opened and closed repeatedly. "*" is number of open/close cycle times. Error code initialization Initialization of the last error code held by timer (Write in F00) Last Drive Error, Error history and Error Codes stored on the unit are initialized to factory setting. Release Service Mode. Display in STOP (E-E) mode.
Press [9] [1] in service mode *When releasing this mode, press the [POWER] button of Remote Controller more than 10 seconds. Press [9] [8] in service mode.
Initialize Service
Press [9] [9] in service mode.
Finishing service mode
Press power button on the front panel or Remote controller in service mode.
26
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
9 Service Fixture & Tools
Part Number RFKZ0260 RFKZ0216 RFKZ0366 RFKZ0168 RFKZ0339 JZS0484 RFKZ03D01K RFKZ06D01K RFKZ10D01K RFKZ0316 RFKZ0328 RFKZ0329 Description Extension Cable (MainP.C.B. - RAM/Digital P.C.B. Module/ 88 Pin) Extension Cable (MainP.C.B. - Power P.C.B./ 23 Pin) Extension FFC (HDD - RAM/Digital P.C.B. Module/ 40 Pin) Extension Cable (Power P.C.B. - Fan Motor/ 3 Pin) Extension Cable (MainP.C.B. - HDD / 4 Pin) Eject Pin Lead Free Solder (0.3mm/100g Reel) Lead Free Solder (0.6mm/100g Reel) Lead Free Solder (1.0mm/100g Reel)) Solder Remover (Lead free 10W temperature Solder/180g) Flux Bottle of Flux Same Same New Same New Same New New New New New New Compatibility as EH50 Series as E55 Series as E50/ E55 Series as E50 Series
27
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
10 Disassembly and Assembly Instructions
10.1. Disassembly Flow Chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart below.
10.2. P.C.B. Positions
28
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
10.3. Top Case
1. Remove 2 screws (A) and 3 screws (B). 2. Slide Top Case rearward and open the both ends at rear side of the Top Case a little and lift the Top Case in the direction of the arrows.
10.5. SD Card P.C.B.
1. Remove 1 FFC and 2 screws (A) to remove SD Card P.C.B..
10.4. Front Panel
1. Unlock 6 tabs in (A) - (F) turn. Pull with the front panel in the direction of your side.
10.6. RAM/Digital P.C.B. Module
Note:
After replacing RAM/Digital P.C.B. Module, "TM AV1" is displayed on FL. Once power off, and start-up again.
29
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
1. Remove 1 FFC and 6 Screws (A). 2. Lift up Digital P.C.B. slightly so to disconnect Connectors to remove Digital P.C.B.
Note: RAM/Digital P.C.B. Module as service part has no heat sink unit. Before returning to customer, heat sink unit should be installed on Digital P.C.B..
3. Put Digital P.C.B. on RAM Drive and remove RAM/Digital P.C.B. Module.
30
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
10.7. DV Jack P.C.B.
1. Remove 1 Screw (A) to remove DV Jack P.C.B.
10.8. HDD
31
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
1. Remove ATAPI Connector and HDD Power Connector. 2. Remove 4 Screws (A) to remove HDD Angle with HDD.
10.9. Rear Panel
1. Disconnect Fan Connector.
3. Put HDD with HDD Angle up and down inversely so as not to give a shock to HDD.
4. Remove 4 screws (A) remove HDD.
32
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
10.10. Power P.C.B.
2. Remove 7 Screws (A) and 1 Screw (B). 1. Remove 1 Screw (A).
3. Unlock 2 Locking Tabs (A) to remove Rear Panel.
2. Remove 3 Screws (B) and disconnect Connector (A) to remove Power P.C.B..
10.9.1. Fan Motor
1. Disconnect Fan Connector and remove 2 Screws (A). 2. Push and unlock 2 Locking Tabs (A) to remove Fan Motor.
33
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
10.11. Main P.C.B. and Front (L) P.C.B.
10.12. Tuner P.C.B.
1. Pull out the Tuner P.C.B. in the direction of the arrow.
1. Remove 1 Screw (A).
2. Remove 4 Screws (A) and 1 Screw (B). 3. Remove Digital Angle to remove Main P.C.B. and Front (L) P.C.B..
34
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11 Measurements and Adjustments
11.1. Service Positions
Note: For description of the disassembling procedure, see the section 10.
11.1.1. Checking and Repairing of Power P.C.B.
35
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11.1.2. Checking and Repairing of RAM / Digital P.C.B. Module
36
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11.1.3. Checking and Repairing of Main P.C.B.
37
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11.1.4. Checking and Repairing of HDD
38
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11.2. Caution for Replacing Parts
11.2.1. Items that should be done after replacing parts
39
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
Note3: Please prepare latest firmware updating disc. * Main Firm is being recorded in HDD, but new HDD has no data. Writing Procedure of Main Firm: <> (1) Writing of Main Firm needs 3, 4 minutes. (2) Never cut the power of DVD Recorder until writing in Firmware ends. (3) Initial settings and contents of reservation will not change if writing is normally completed. 1. Prepare updating disc for firm ware. 2. Replace HDD. 3. Turn on power of DVD Recorder. 4. After [PLEASE WAIT] is displayed on FL., [HDD ERR] is displayed on FL. 5. Tray opens automatically. 6. Insert updating disc for Firmware and press OPEN/CLOSE key. (If a wrong disc was inserted, [NG DISK] [NO FVU] is displayed on FL.) 7. [LOAD] Ū [LD FVU] ŽŪ [M_FIRM] are displayed on FL alternately. 8. [MAIN] ŽŪ [UPD OK] blink alternately and Tray opens. Take out disc (Writing was finished). 9. Press Power button to turn off power. 10. Press Power button to turn on power. 11. [HELLO] Ū [SELF CHECK] are displayed on FL. 12. [UNFORMAT] is displayed on FL. 13. After [UNFORMAT] was displayed, message to request FORMAT is displayed on TV screen. 14. Select [Yes] and press [ENTER] key to format HDD. (After FORMAT, program in HDD will be lost, but Main firm will not be lost. "Write of the main farm" is completed above.
* Drive firm is not updated by above operation. If you wish update Drive firm, please prepare the disc for latest firmware update, and write it again. * If the version of the firm you have prepared was same as or later than that has already been written in deck, īUNSUPPORTī is displayed on FL. * In a usual updating of firmware, writing is not performed when the timer reservation standby was not released.
11.2.2. Notice after replacing RAM/Digital P.C.B. Module
After replacing RAM/Digital P.C.B. Module, "TM AV1" is displayed on FL. Once power off, and start-up again.
40
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
11.3. Standard Inspection Specifications after Making Repairs
After making repairs, we recommend performing the following inspection, to check normal operation.
No. 1 2 3 4 Procedure Turn on the power, and confirm items pointed out. Insert RAM disc. Enter the EE (TU IN / AV IN - AV OUT) mode. Perform auto recording and playback for one minute using the RAM disc. Item to Check Items pointed out should reappear. The Panasonic RAM disc should be recognized. No abnormality should be seen in the picture, sound or operation. No abnormality should be seen in the picture, sound or operation. *Panasonic DVD-RAM disc should be used when recording and playback. Model with the HDD: Perform auto recording and playback for one No abnormality should be seen in the picture, sound or operation. minute using the HDD. If a problem is caused by a VCD, DVD-R, DVD-Video, Audio-CD, or No abnormality should be seen in the picture, sound or operation. MP3, playback the test disc. Models with SD Card Slot or DV Input Jack: In case of that the Models with SD Card or DV Input Jack; trouble is caused by SD card and/or DV terminal. 1) SD Card: Check to be able to display and copy the picture. 2) DV terminal: Check to be able to record from DVC. After checking and making repairs, upgrade the firmware to the Make sure that [FIRM_SUCCESS] appears in the FL displays. latest version. *[UNSUPPORT] display means the unit is already updated to newest same version. Then version up is not necessary. Transfer [9][9] in the service mode setting, and initialize the service Make sure that [CLR] appears in the FL display. settings (return various settings and error information to their After checking it, turn the power off. default values. The laser time is not included in this initialization).
5 6 7
8
9
Use the following checklist to establish the judgement criteria for the picture and sound.
Item Block noise Crosscut noise Dot noise Picture disruption Not bright enough Too bright Flickering color Color fading Contents Check Item Contents Distorted sound Noise (static, background noise, etc.) The sound level is too low. The sound level is too high. The sound level changes. Check
Picture
Sound
41
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
42
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
12 Block Diagram
12.1. Power Supply Block Diagram
POWER P.C.B.
MAIN P.C.B.
VA1110,L1120 AC INLET P1101
D1140,C1143
T1150 POWER SWITCHING TRANSFORMER
Q1700 (REG.X SW+3.8V) D1270 1 2 4 S FET G D 1 2 5 6 1 Vin Current 8 Sense FET Gate 7 Drive 2 2 PW ON GND 6
RESET +5.2V IC7505- 1 X SW+3.8V P1102 P1501 16,17,19 X SW+3.8V A
F1101
SURGE SUPPRESSOR AND SURGE ABSORBER
RECTIFIER 12 P1
3
IC1701
(DC/DC CONVERTER)
3
X SW+5.8V
P1102 P1501 3,4,5,6
B
S2B
IC1150
(SWITCHING IC) S2A VIN 7 2 F/B 9 5 Z/C 1 GND VCC 3 4 10 P2 S1A 4 3
Q1600 (REG.X SW+5.8V) 1 2 S FET G D 5 6 7 8 1 1 Vin Current 8 Sense FET Gate 7 Drive 2 PW ON GND 6
IC1505
(REG.X SW+3.3V) 3 CONT VOUT 5 1 VIN GND 2 X SW+3.3V IC7501- 16
S1B
5 IP1601 2
IC1601
(DC/DC CONVERTER)
3
8
V2
IC1521
4
(REG.ANA+3.3V)
7
V1 QR1800,QR1801 SWITCHING
8 VIN VOUT 1 GND CONT 4 5
ANA+3.3V
C
FROM TIMER SECTION
DI P ON H IC7501- 44
D
E T7501 DISPLAY HEATER POWER SWITCHING TRANSFORMER 2 1 7 D7506 UNREG +38V F
IP1501 1 2
IP7501 1
IC7401
(REG.PS+11.6V) X SW+12V P1102 P1501 12,13,14,15
IC7507- 8
Q1200 (FEED BACK) 4 1
1 VIN E VOUT 3 H :ON GND 2 5
PS+11.6V
IC3001- 46 ,IC4009- 8 ,IC4012- 8 PWR SAVE H :ON IC7501- 79 FROM TIMER SECTION
3
2 Q1509 (DR+12V OUT) 1 3 2 3 S FET G D 5 6 7 8
DR+12V
QR7401 ( H :ON)
2 1
G H
IC1200
(ERROR VOLTAGE DET.)
HOT
COLD
4
DR P ON H IC7501- 42
FROM TIMER SECTION
QR1501 ( H :ON)
DMR-EH55EE/GC/GCS/GN Power Supply Block Diagram
43
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
MAIN P.C.B.
DIGITAL P.C.B.
ANA+3.3V
P7402
P59001 56
IC50001/IC53001/IC53003/IC57001(+3.3V)
A
X SW+3.8V
D+3.8V
P7402 P59001 60,62
IC59504
IC59506
(REG.D+3.3V) IC50001/IC55004/I C55006/IC57001(+3.3V) IC50001/IC50002/ IC50004(+3.3V)
IC1506
(REG.DR+5V)
IC4901- 2
ANA+5V
P7402
P59001 76
IC50001/IC53003/IC53202/ IC53203(+5V) IP50002
(REG.D+3.3V)
1 VIN 1 IC50002/IC50003(+5V)
B
2 VIN VOUT 4 GND H :ON 3 1
DR+5V
DR+5V
P7402 P59001 22,24
2
VOUT 3 ON H 2
8 VIN
VOUT 1 ON H 5
DR P ON H IC7501- 42
FROM TIMER SECTION
Q1501 (DR+5V OUT)
HDD PFAIL L IC7501- 40
IC1520
(REG.ANA+5V)
1 2 S FET G D 5 6 7
5 VCC + Vref VOUT
4
IC59502
(REG.ANA+2.5V) P7402 P59001 34
1 VIN VOUT 5 GND CONT 2 3
ANA+5V
3
IC1522
(HDD PFAIL L OUT)
1 VIN
VOUT 5 CONT 3
IC53702(+2.5V)
IC59505
(REG.D+2.5V)
2 3
8 4
QR1503 ( H :ON) D+3.3V P7402 P59001 42
IC4011
(REG.AU+5V) C VOUT 5 4 VIN GND H :ON 2 3 AU+5V
Q7513- G
1 VIN
VOUT 3 ON H 2
IC50001/IC53202/ IC53203(+2.5V)
AU+5V
P7402
P59001 25
IC54402/IC54404(+5V)
D
POWER OFF L
P7402 30
P59001
IC1507
(REG.X SW+5.2V) 5 CONT E VOUT 1 8 VIN GND 4
X SW+5.8V
IC7505
(RESET) P FAIL L
DR+5V DR+12V P1103 4 P1103 1 TO HDD
IC59503
(REG.D+1.5V)
X SW+5.2V D7509 2 1 4
2 VDD
OUT 1
IC7501- 73
1 VIN
VOUT 5 CONT 3
IC53702(+1.5V)
IC7501- 62 / 90 / 99 IR7501- 3
IC7501- 98 POWER OFF L 3 P7402 P59001 52
QR59501, 59502
IC7402
(REG.BOOSTER+5V)
F
3
IC7502
(RESET) BOOSTER+5V IC3001- 42 / 84 / 94 RESET L
1 VIN VOUT 5 3 CONT GND 2 5 VDD OUT 4 IC7501- 12
TUNER P.C.B.
BOOTHER+5V
TU7801 U/V TUNER 1 BOOSTER+B
PP7401 PS7801 17 K7810
IC7403
(REG.PS+5V)
JC REG+5V
IC59501
(DC-DC CONVERTER)
Q59501
(REG.D+12V)
Except(EG) 8 VIN VOUT 1 GND CONT 4 5 PS+5V IC3001- 6 / 8 / 25 / 40 IC7301- 3 / 6 / 35
PP7401 PS7801 10
7 5V(TUNER)
1 VIN EXT 7 3 G 1 2 (+12V)
IC7302
(RESET) 1 VDD OUT 3 IC7301- 26
UNREG+38V
PP7401 PS7801 3
16 BTL+30V
ON/OFF 2
D 5
G H
5 FB
CS 8
4 S
6
IC1510
(REG.+5V)
17 5V(VIF)
1 VIN VOUT 3 GND H :ON 5 2
JC REG.+5V
D+12V
TU P ON H IC7501- 43
FROM TIMER SECTION
DR+12V
P7402 P59001 64,66,68,70,72,74 IP50001 P7402 P59001 14,16 2 1 IC50003(+12V)
DMR-EH55EE/GC/GCS/GN Power Supply Block Diagram
DMR-EH55EE/GC/GCS/GN Power Supply Block Diagram
44
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
12.2. Analog Video Block Diagram
:REC SIGNAL :PB SIGNAL
IC3001
(VIDEO PROCESSOR)
MAIN P.C.B.
6MHz 12MHz + P59001 P7402 39 Y OUT DM 93 CLAMP 6MHz LPF (SW1) a b c (SW2) a b c (SW3) a b c d 6MHz 12MHz P59001 P7402 51 GPYOUT DM 97 CLAMP (SW4) a b c AV1 R-C OUT 4 PB 9 3 6 Y COMP B-Y OUT AV1 B OUT (SW6) P59001 P7402 55 JK3901 21 PIN JACK AV1 (TV) 20 AV1 VIDEO 33 AV1 V CLAMP AV1 G OUT BPBOUT DM 99 CLAMP/ BIAS 6MHz 12MHz (SW5) a b c a b c d COMP Y OUT 5 11 JK3801 21PIN JACK 12 15 7 14 11 19 15 RED/C BLUE GREEN VIDEO/Y AV1 (TV) JK3903 COMP R-Y OUT
P59001 P7402 43
C OUT DM
91
BIAS
6MHz BPF
7
2 PR 1 COMPONENT VIDEO OUT PROGRESSIVE/ INTERLACE
FROM DIGITAL P.C.B. DIGITAL VIDEO BLOCK SECTION
P59001 P7402 47
RPROUT DM
95
CLAMP/ BIAS
17
AV3 JK3002 FRONT JACK S-VIDEO IN 1 2 3 4 3 4 AV3 Y AV3 C 41 AV3 Y CLAMP (SW7) a b (SW8) a b (SW9) a b VIDEO IN 8 7 AV3 V 37 AV3 V CLAMP SV1 a b c d e SV2
14 15 AV4 V 35 AV4 V CLAMP
JK3001 S-VIDEO
20 AV4 Y OUT Y C AV4
19
9 10
AV4 C OUT
22
45
AV3 C
BIAS
AV4 V OUT
23
JK3001 VIDEO OUT 13 AV4 15
24
AV1 V/Y/C OUT
AV4 JK3001 REAR JACK
26 JK3901 21PIN JACK 28 19 VIDEO AV2 (DECODER/EXT)
VIDEO IN
a b c d e
AV2 V OUT
AV4 JK3001 S-VIDEO S-VIDEO IN 1 2 3 4 Y C 3 4 AV4 Y AV4 C 39 AV4 Y CLAMP
AV1 V AV3 Y AV3 C AV3 V AV4 V AV4 Y AV4 C AV2 R/C AV2 V/Y TUNER V
C-ADC OUT
81
CPN CIN DM V/Y IN DM
P7402 63 P7402 59
P59001 P59001
ADC OUTPUT SELECT SWITCH CIRCUIT
V/Y ADC OUT
83 P7402 88 P7402 83 P7402 87 P7402 84 P59001 P59001 P59001 P59001
SLICER
43
AV4 C
85
BIAS
SLICER Q7501,Q7503- B FROM/TO TIMER SECTION
< RGB CPSV >
TO DIGITAL P.C.B. DIGITAL VIDEO BLOCK SECTION
SCL JK3901 21 PIN JACK RED/C 15 AV2 (DECODER/EXT) GREEN 11 BLUE 7 AV2 R/C AV2 G AV2 B AV2 V/Y 5 AV2 B CLAMP CLAMP AV2 V/Y TUNER V 3 AV2 G CLAMP 1 AV2 R/C BIAS CLAMP (SW10) b a IIC BUS LOGIC SDA
88 89
IIC CLK IC7501- 29 IIC DATA IC7501- 30
VIDEO/Y 20
TU7801 U/V TUNER Q7802 30 5V CLAMP 2.3V 1.0V
< RGB CPSV >
PP7401 PS7801 2
BUFFER
18 VIDEO OUT
31
TUNER P.C.B.
DMR-EH55EE/GC/GCS/GN Analog Video Block Diagram
45
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
12.3. Analog Audio Block Diagram
:REC SIGNAL :PB SIGNAL
JK3001 REAR JACK D4005 FROM TIMER SECTION XTMUTE IC7501- 65 Q4006 MUTE QR4002-QR4004 MUTE CIRCUIT FROM DIGITAL P.C.B. XDMUTE IC54402- 16 D4006 Q4007 MUTE Q4009 MUTE Q4008 MUTE MIX R OUT2 MIX L OUT2 16 18 19 21 LINE OUT (L) AV4 LINE OUT (R)
MAIN P.C.B.
IC3001
(AUDIO SIGNAL PROCESSOR) (SA1R)
IC4009
(BUFFER) FROM DIGITAL P.C.B. DIGITAL AUDIO BLOCK SECTION P59001 P7402 29 P59001 P7402 27 MIX R OUT DM MIX L OUT DM 2 6 1 7 56 64 DAC Rch DAC Lch a b c d e OUTPUT SELECT SWITCH (SA4R) a b c d BUFF. LPF MUTE AV1 Rch 72 AUDIO OUT Ch2(R) JK3901 21 PIN JACK 1 AV1 (TV) AUDIO OUT Ch1(L) 3
AV1 (TV)
JK3901 21 PIN JACK AUDIO IN ch2(R) 2 6 2 6 AUDIO IN ch1(L) AUDIO IN ch2(R) AUDIO IN ch1(L)
(SA3R) 52 60 53 61 AV1 Rch AV1 Lch AV2 Rch AV2 Lch (SA5R) AV4 TUN BUFF. (SA2R) a b c d e a b c d e
AGC
ADC Rch AMP
ADC Rch
79
AV2 (DECODER/EXT)
BUFF. LPF MUTE AV2 Rch 74 AUDIO OUT Ch2(R) 1 AV2 (DECEODER/EXT) AUDIO OUT Ch1(L) 3
JK3002 FRONT INPUT JACK 13 12 11 10 9 50 AV3 Rch
LINE (Rch) AV3 (FRONT) AUDIO LINE (Lch/MONO)
(SA2L) 58 AV3 Lch a b c d e OUTPUT SELECT SWITCH (SA4L) a b c d BUFF. LPF MUTE AV2 Lch 73
JK3001 REAR INPUT JACK 20 21 LINE (Lch) 17 18 59 AV4 Lch 51 AV4 Rch
AADC R
P7402 19
P59001 TO DIGITAL P.C.B. DIGITAL AUDIO BLOCK SECTION
(SA3L) a b c d e
LINE (Rch) AV4 (REAR) AUDIO
AGC
ADC Lch AMP
ADC Lch
78
AADC L
P7402 17
P59001
(SA5L) AV4 TUN BUFF.
(SA1L) a b c d e BUFF. LPF MUTE AV1 Lch 71
TU7801 U/V TUNER (EC)ONLY AUDIO 14 OUT
IC7301
(NICAM/A2) PS7801 PP7401 5 MONO R OUT 2 38 IN TUN Rch SCL SIF OUT 15 PS7801 PP7401 4 25 SIF L OUT 1 62 TUN Lch IIC BUS LOGIC SDA 88 89 IIC CLK IC7501- 29 IIC DATA IC7501- 30 FROM TIMER SECTION
54
5V 2.3V 1.0V
76
RF OUT
MUTE
VCA
+ MIX
TUNER P.C.B.
IC4901 OPTICAL (DIGITAL AUDIO OUT)
FROM DIGITAL P.C.B.
P59001 P7402 32
IEC OUT
1
DMR-EH55EE/GC/GCS/GN Analog Audio Block Diagram
46
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
12.4. Analog Timer Block Diagram
IR7501
REMOTE CONTROL RECEIVER VDD GND CTL. 3 2 1
IC7501
(TIMER)
MAIN P.C.B.
POWER SAVE H 61 P SAVE H QR7508 ( H :ON) IR 3 REMOTE CTL. Q7510 ( L :OFF) X SW+12.4V IP7501 (IC PROTECTOR) 1 2
T7501 DISPLAY HEATER POWER SWITCHING TRANSFORMER D7506 7
9 1
HEATER+ +B
+38V
UNREG.+38V
PP7401 PS7801 3
TO U/V TUNER ( 16 BTL+30V)
3 8 HEATER-
GND -33V
6 D7505 5 DP7501
74 SYS PFAIL H
IC7505
(RESET)
45 F+
IC7502
(RESET) OUT 1 73 PFAIL L RESET L 12 4 VDD 5 X SW+5.2V
1 F-
X SW+5.2V
2 VDD
IC7504
(DISPLAY DRIVE) 7 VCC FL TXD 5 FL RXD 6 FL CLK 7 VP 15 FL29 FL28 FL25 FL24 FL22 FL21 FL20 FL18 FL17 FL15 FL14 FL11 FL04 FL03 FL01 FL00 12 13 17 18 20 21 22 24 25 27 28 31 38 39 1 2 41 42 37 36 34 33 32 30 29 27 26 23 13 11 9 7 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16
(EE)
10 S DATA 9 SCK
S7501 EXT LINK
S7504 OPEN/CLOSE KEY IN1 86 KEY IN1
FL RESET L 51 FL CS 45
8 RESET 3 CS 5 VSS
TIMER DISPLAY
IC7301
(NICAM/A2) S7506 STOP S7508 REC S7502 CH-DOWN IIC CLK 29 KEY IN2 87 KEY IN2 IIC DATA 30 IIC CLK IIC DATA 29 SCL 30 SDA
FL16 FL13 FL10 FL06 FL05 FL02
26 29 32 36 37 40
28 25 22 18 15 10
2G 3G 4G 5G 6G 7G
S7505 SELECT
S7507 PLAY
S7503 CH-UP KEY IN3 88 KEY IN3 PP7401 PS7801 7 TU7801 U/V TUNER 12 SDA
PP7401 PS7801 8
11 SCL
S7002 POWER P7001 4 P7506 XTMUTE 65 SYNC IN 98 Q7503 BUFFER Q7501 CVIN1 89 BUFFER
XT MUTE QR4003- B
FRONT(L) P.C.B.
SLICER VIDEO IC3001- 85
TO/FROM ANALOG A/V SECTION
DR POWER ON H 42 10 XCIN X7502 32.768KHz 11 XCOUT DI POWER ON H 44 TU POWER ON H 43
DR P ON H QR1501- B P OFF L IC1506- 1 TU P ON H IC1510- 2
TO POWER SUPPLY SECTION
TBUS CLK 37 TBUS TXD 35 TBUS RXD 36 13 XOUT X7501 10MHz 15 XIN FAN PWM OUT 22
G SCLK A G SBPTM A G SBMTP A
SCLK P7402- 3 SBPTM P7402- 7 SBMTP P7402- 9
TO/FROM DIGITAL P.C.B.
IC7507
(FAN MOTOR DRIVE) 3 2 + -
X SW+12.4V
1
Q7511 (FAN MOTOR DRIVE)
FANDCOUT
FAN MOTOR P1501 23 P1501 23 P1102 23 P1102 23 P1103 1 P1103 3
M
DMR-EH55EE/GC/GCS/GN Timer Block Diagram
FAN LOCK H 39
47
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
48
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13 Schematic Diagram
13.1. Interconnection Schematic Diagram
KEY3_POWER GND
JW7001 1 2
JW7501 1 KEY3_POWER 2 GND
PS57001 TPA+ TPANC NC TPB+ TPBP7402 DGND 1 DGND 2 DGND 3 DGND 4 DGND 5 DGND 6 DGND 7 DGND 8 DGND 9 DGND 10 DGND 11 DGND 12 XINTP 13 DR12V 14 SCLK 15 DR12V 16 XINTM 17 DRGND 18 SBPTM 19 DRGND 20 SBMTP 21 DR5V 22 XMPREQ 23 DR5V 24 AU5V 25 ITM2A 26 XDMUTE 27 ITA2M 28 AADC_L 29 P_OFF_L2 30 AADC_R 31 XFWE 32 AUGND 33 D3R3V 34 AUGND 35 I2C5DT 36 AUGND 37 I2C5CK 38 MIXLOUT_DM 39 IT_CK 40 41 MIXROUT_DM X_SW_3R2V/D3R3V 42 43 DGND 44 IECOUT 45 DGND 46 DGND 47 DGND 48 UARTP2M 49 DGND 50 UARTM2P 51 YOUT_DM 52 P_OFF_L3 53 DGND 54 CSYNC_IN 55 COUT_DM 56 ANA3R3V 57 DGND 58 EPG_ON_H/BUSY 59 RPROUT_DM 60 X_SW3R8V 61 DGND 62 X_SW3R8V 63 GPYOUT_DM 64 X_SW_12V 65 DGND 66 X_SW_12V 67 BPBOUT_DM 68 X_SW_12V 69 DGND 70 X_SW_12V 71 V_YIN_DM 72 X_SW_12V 73 DGND 74 X_SW_12V 75 CPNCIN_DM ANA5V 76 DGND 77 DGND 78 BS_ON 79 EPG_VIDEO 80 DGND 81 DGND 82 G_IN 83 RGB_CPSVIN 84 DGND 85 DGND 86 B_IN 87 R_IN 88 P59001 1 DGND 2 DGND 3 DGND 4 DGND 5 DGND 6 DGND 7 DGND 8 DGND 9 DGND 10 DGND 11 DGND 12 DGND 13 XINTP 14 DR12V 15 SCLK 16 DR12V 17 XINTM 18 DRGND 19 SBPTM 20 DRGND 21 SBMTP 22 DR5V 23 XMPREQ 24 DR5V 25 AU5V 26 ITM2A 27 XDMUTE 28 ITA2M 29 AADC_L 30 P_OFF_L2 31 AADC_R 32 XFWE 33 AUGND 34 D3R3V 35 AUGND 36 I2C5DT 37 AUGND 38 I2C5CK 39 MIXLOUT_DM 40 IT_CK 41 MIXROUT_DM 42 X_SW_3R2V/D3R3V 43 DGND 44 IECOUT 45 DGND 46 DGND 47 DGND 48 UARTP2M 49 DGND 50 UARTM2P 51 YOUT_DM 52 P_OFF_L3 53 DGND 54 CSYNC_IN 55 COUT_DM 56 ANA3R3V 57 DGND 58 EPG_ON_H/BUSY 59 RPROUT_DM 60 D3R8V 61 DGND 62 D3R8V 63 GPYOUT_DM 64 D1R2V 65 DGND 66 D1R2V 67 BPBOUT_DM 68 D1R2V 69 DGND 70 D1R2V 71 V_YIN_DM 72 D1R2V 73 DGND 74 D1R2V 75 CPNCIN_DM 76 ANA5V 77 DGND 78 DGND 79 BS_ON 80 EPG_VIDEO 81 DGND 82 DGND 83 G_IN 84 RGB_CPSVIN 85 DGND 86 DGND 87 B_IN 88 R_IN 1 2 3 4 5 6
P37001 1 TPA+ 2 TPA3 NC 4 NC 5 TPB+ 6 TPB-
FRONT(L) P.C.B.
DIGITAL P.C.B. DV JACK P.C.B.
G
P1102 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 P1103 1 2 3 P1501 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
X_SW5R8VT X_SW5R8V X_SW5R8V X_SW5R8V GND GND GND GND GND X_SW12V X_SW12V X_SW12V X_SW12V X_SW3R8V X_SW3R8V P_ON_H D3R8V P_SAVE_L FANLOCK FAN_GND FANOUT
X_SW5R8VT X_SW5R8V X_SW5R8V X_SW5R8V GND GND GND GND GND X_SW12V X_SW12V X_SW12V X_SW12V X_SW3R8V X_SW3R8V P_ON_H X_SW3R8V P_SAVE_L FANLOCK FAN_GND FANOUT
MAIN P.C.B.
F
FANOUT FAN_GND FANLOCK
E
P1101 A N
POWER P.C.B.
FAN MOTOR
PP7401 18 17 16 15 14 GND 13 12 11 GND 10 JCREG5V 9 SW2 8 IIC CLK 7 IIC DATA 6 AFC 5 4 SIF OUT 3 UNREG38V 2 TUNER VIDEO IN DGND 1 GND BOOSTER5V
PS7801 18 GND 17 BOOSTER 5V 16 15 14 GND 13 12 GND 11 10 JC REG 5V 9 SW2 8 IIC CLK 7 IIC DATA AFC 6 5 4 SIF OUT 3 UNREG 38V 2 TUNER VIDEO IN 1 GND
CD DAT1 DAT0 GND CLK WP CMD DAT3 DAT2 D3R3V D3R3V TPA+ TPAGND TPB+ TPBGND XDIAG XSORX XSOTX
P6802 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
P53501 1 CD 2 DAT1 3 DAT0 4 GND 5 CLK 6 WP 7 CMD 8 DAT3 9 DAT2 10 3R3V 11 3R3V 12 TPA+ 13 TPA14 GND 15 TPB+ 16 TPB17 GND 18 DIAG 19 SBI0 20 SBO0
SD CARD P.C.B.
D
DR12V DR_GND DR_GND DR5V 1 2 3 4 P1503 1 2 3 4 DR12V DR_GND DR_GND DR5V
TU7801 U/V TUNER
1 BOOSTER+B 2 AUDIO IN 3 MSDA
GND CS1CS0DA2 DA0 DA1 INTRQ GND DMACKCSEL IORDY GND DIORGND DIOWGND DMARQ
C
B
A
GND DD15 DD0 DD14 DD1 DD13 DD2 DD12 DD3 DD11 DD4 DD10 DD5 DD9 DD6 DD8 DD7 GND RESET-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
4 5V(RFC) 5 MSCL 6 VIDEO IN 7 5V(TUNER)
9 RFAGC 10 SW(VIF) 11 SCL 12 SDA 13 AFC S-CURVE 14 AUDIO OUT 15 SIF OUT 16 BTL+30VIN 17 5V(VIF) 18 VIDEO OUT
P58001 1 GND 2 3 CS14 CS05 DA2 6 DA0 7 8 DA1 9 10 INTRQ 11 GND 12 DMACK13 CSEL 14 IORDY 15 GND 16 DIOR17 GND 18 DIOW19 GND 20 DMARQ 21 22 GND 23 DD15 24 DD0 25 DD14 26 DD1 27 DD13 28 DD2 29 DD12 30 DD3 31 DD11 32 DD4 33 DD10 34 DD5 35 DD9 36 DD6 37 DD8 38 DD7 39 GND 40 RESET-
P50001 LDD VCC1 1 2 LDD VCC1 LDD VSS 3 LDD VSS 4 LDD ENABLE 5 LDD GND2 6 LDD IINRD 7 LDD IINW1 8 LDD IINW2 9 LDD IINW3 10 11 SC/ROHM 12 LDD W1 13 LDD W1N 14 LDD W2 15 LDD W2N 16 LDD W3 17 LDD WN 18 LDU HFM 19 LDU HFMN 20 LDU CD/DVD 21 OEIC GND 22 OEIC VC 23 FM VOUTFM VOUT+ 24 FM/OEIC VCC:5V 25 OEIC D 26 OEIC C 27 OEIC RF+ 28 OEIC RF29 OEIC B 30 OEIC A 31 OEIC EI 32 OEIC FJ 33 OEIC GK 34 OEIC HL 35 OEIC SW2 36 OEIC SW1 37 SMOUT 38 GND 39 ACT FOC240 ACT FOC2+ 41 ACT TRK+ 42 ACT TRK43 ACT FOC1+ 44 ACT FOC145
DVD RAM DRIVE
FP50002 GND GND AA+ B+ B1 2 3 4 5 6
FP50003 HHWHW+ HVHV+ HUHU+ H+ COILU COILV COILW 1 2 3 4 5 6 7 8 9 10 11
FP50004 LM+ LMOPEN_SW PHOTO_LED CARTRIGE REC INH GND CLOSE SW Circuit Name FEP BE Audio I/O D Net/EPG Model Select Ref.No. Ref.No.50000 SERIES Ref.No.50000,53000,54000, 55000,57000 SERIES Ref.No.54000 SERIES Ref.No.59000 SERIES Ref.No.59000 SERIES 1 2 3 4 5 6 7 8
TUNER P.C.B.
P.C.B.Name P.C.B.Name Main P.C.B. Circuit Name Main Net A/V I/O Nicam Decoder Timer Ref.No. Ref.No.1500,7400 SERIES Ref.No.3000,3900,4000,4900 SERIES Ref.No.7300 SERIES Ref.No.7500 SERIES Digital P.C.B.
HDD
DMR-EH55EE/GC/GCS/GN Interconnection Schematic Diagram
1
2
3
4
5
6
7
8
9
10
11
49
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13.2. Power Supply Schematic Diagram
LB1122 VWJ0795=5 ZA1103 ZA1104 EYF52BCY EYF52BCY or #K3GE1ZA00010 or #K3GE1ZA00010 A
C1120 ECQU2A683MLC
C1125 ECKWNA102MEV
N P1101 K2AA2H000007
VA1110 #ERZVA5V471 or D4EA7471A007
F1101 K5D202BK0005 250V T2AL
C1143 F2B2W4700003
F
L1120 G0B233D00001 1 2
D1140 B0EDKT000009 (S1WBA80-7062) C1121 ECQU2A223MLC K1122 VWJ0795=10
4 1
T1150 ETS28BF1W6AD
12 1
P1 PU P2 NC V2 V1
NC
D1141 $[B0AAGR000003]
10
SEE THE SERVICE MANUAL
K1123 VWJ0795=10
C1122 ECKWNA102MEV C1123 ECKWNA102MEV
ZA1270 VSC5614 ZA1271 XYN3+J8FJ 1 2 3
9
4
L1400 G0A100HA0023
4
3
3
2
D1270 B0JBSG000010
L1270 G0A100H00025
C1270 F2A1C1820005 16V1800[JG]
LB1124 VWJ0795=5
NC
LB1123 VWJ0795=5
R1800 470[22]
E
LB1126 ERJ6GEY0R00V [22]
R1153 18[22]
D1800 MA2J11100L
QR1800 UNR211300L
R1150 18[22] 2 ZA1150 VSC5603 ZA1151 XYN3+J8FJ
1
D1151 B0HAGM000006
R1200 1200[G][22]
3
2
R1802 4700[22]
ZA1105 K9ZZ00001279 ZA1106 K9ZZ00001279 ZA1107 K9ZZ00001279
2
1
3
5
9 R1151 R1152 10K[22] D1156 MA2C165001VT
330P[22]
R1210 1K[22]
C1200 0.1[22]
3
QR1801 UNR221300L
IC1150 C0DACZH00017
C1150 F2A1V6800002 35V68[JG] or EEUFM1V680B
4
1 C1202 $[22](0.1)
R1207 10K[22]
100K[22]
4
7
Q1200 #B3PBA0000402
R1209 1K[22]
R1208 2200[22]
R1801
C1800
F2A1E4700048 25V47[JF]
R1803 10K[22]
TO P1501 MAIN P.C.B. (MAIN NET(1/4) SECTION) P1102 K1KB23A00004 NC 1 X_SW5R8VT 2 X_SW5R8V 3 X_SW5R8V 4 X_SW5R8V 5 X_SW5R8V 6 GND 7 GND 8 GND 9 GND 10 GND 11 X_SW12V 12 13 X_SW12V 14 X_SW12V 15 X_SW12V X_SW3R8V 16 X_SW3R8V 17 18 P_ON_H 19 D3R8V 20 P_SAVE_L 21 FANLOCK FAN_GND 22 FANOUT 23 TO FAN MOTOR P1103 K1KA03AA0192 FANOUT FAN_GND FANLOCK
11
8
5
3
2
C1271 F2A1C1820005 16V1800[JG]
6800[22] D1152 MAZ4100NMF
C A R
C1201 ECJ2VB1E473K 0.047[22]
1
R1201 8200[G][22]
2
C1272 F2A1C8210008 16V820[JG]
7
6
D
C1151 F1B3D102A011 1000P[2KV]
1
3
2
1 2 3
3
2
1
3
D1155 MAZ73000BC
K1129 VWJ0795=5
C1153 ECJGVB1H222K 2200P[22]
R1158 ERX2SJR22E 0.22[2W]
R1155 7500[G][22]
D1157 B0HADV000001
C1154 ECJGVB1H102K 1000P[22]
R1157 510 [G][22]
R1154 9100 [G][22]
or
C1152
R1156 16K[G][22]
HOT
COLD
Q1600 B1DHED000008 (UPA1717G-E1-A) Q1700 B1DHDD000022
1
C
IC1150 SWITCHING IC IC-DETAIL BLOCK DIAGRAM
7 VIN DRAIN VCC UVLO + VCC(START) /VCC(STOP) UVLO + 4 9
R1206 2400[G][22]
R1205 220K[22]
IC1200 #C0DAEMB00003 C0DAEJC00006
D D G
D D S
1
6
2
2
5
3
3
4
4
IC1601,1701 SWITCHING IC IC-DETAIL BLOCK DIAGRAM
8 CS 7 EXT LEVEL SHIFT 6 GND RESET 5 0.8V + FB
F2A1E2210050 25V220[JF] or EEUFM1E221B 0.1[18] 0.1[18] 0.1[18]
R1703 ERJ3GEY0R00V
B
LB1700 J0JHC0000048 [18]
1
F2A1E2210050 25V220[JF] or EEUFM1E221B 0.1[22] 0.1[22] 0.47[22] 1 8
1
8
CONTROL LOGIC
LB1600 J0JHC0000048 [22]
VCC(STARTUP OFF) /VCC(STARTUP ON)
R1603 2000[D][22]
LATCH RELEASE/ OVER VOLTAGE PROTECTOR/ OVER HEATING PROTECTOR
START-UP CIRCUIT
R1701 D1BFR0240001 24M[36]
L1701 G0A220ZA0041
IP1601 K5H3022A0013 P
2
R1601 D1BFR0240001 24M[36]
5
6
7
8
L1601 G0A150ZA0041
C1707 F2A0J6810007 6V680[JG]
R1704 12K[D][18]
IDP(LIMIIT/ BURST)SENS.
C1705 180P[18]
3 6
C1605 180P[22]
3 6
R1604 8200[D][22]
CNT. COMP - +- + V5 UVLOcomp + -
C1607 F2A1A6810022 10V680[JG]
4
4
5
5
R1705 5600[D][18]
C1701 C1702 C1703 C1704
A
2
FB
OCP THRESHOLD COMPARATOR/ BURST MODE OCP THRESHOLD COMPARATOR ON WIDTH TIMER GND 3
RESTERT TIMER
VIN 1
VREF 2
V5/PWON 3
VREF/SS 4
CC
C1601 C1602 C1603 C1604
STANDBY CIRCUIT
IC1701 C0DBAZZ00132 (AL1014)
IC1601 C0DBAZZ00132 (AL1014)
SOURCE /OCL 5
IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS.ONLY THE SAME TYPE.
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
DMR-EH55EE/GC/GCS/GN Power Supply Schematic Diagram
1
2
3
4
5
6
7
8
9
R1605 2700[D][22]
C1706 0.01[18]
R1602 51K[22]
D1601 B0JCPD000021
CONTROL CIRCUIT
SOFT-DRIVE CIRCUIT
R1702 51K[18]
D1701 B0JCPD000021
1
C1606 ECJGVB1H103K 0.01[22]
Z/C
ZERO CURRENT DET./ONDEAD TIMER
C1608
0.1[22]
2
2
7
7
10
50
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M)
LOCATION MAP 1/4 2/4
A
3/4
4/4
IC1507 C0CBCDD00027 (MM1685C)
V OUT
ON[H]
GND
V IN
V OUT
NC
V IN
C
1
2
3
4
5
1
2
3
GND
NC
CN
ON[H]
TUREG5V IC1510 C0CBCDG00006 (PG050DNA1ZPH)
X_SW5R2V 8 7
NC
6
NC
5
4
1
F1H1A105A028
F1H1A105A028
T
RESET_5R2V
F1H1A105A028
T
X_SW_3R3V
F1J0J106A014 $[F2A1A470A388]
2
C1536 C1537
C1539
C1535
C1538
C1540
0.01
3
IC1505 C0CBCBC00174 (S-815A33AMC-I2STFG)
M:Main Net Section:(Page: A ) AV:A/V I/O Section:(Page: B ) DE:Nicam Decoder Section:(Page: C ) T:Timer Section:(Page: D )
X_SW3R3
5
VO VIN
1
NC GND CNT
2 3 C1522 F1H1A105A028
B
IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS.ONLY THE SAME TYPE.
C1520 F1H1A105A028
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
4
4
IC1520 C0CBCDC00052 (S-815A50AMC-I3JTFG)
IC1521 C0CBCBD00048 (MM16830)
T T T
FANOUT FANLOCK P_SAVE_L LB1503 J0JKB0000003
5
ANA5V P IP1501 K5H302100004
1 2
ANA3R3V 8
V IN 3 2 1
7
NC
6
NC CN
5
ON[H] GND
CNT GND VIN NC
4
TO P1102 POWER P.C.B. P1501 K1KA19A00007 X_SW15R5V X_SW5R8VT X_SW5R8V X_SW5R8V X_SW5R8V X_SW5R8V GND GND GND GND GND X_SW12V X_SW12V X_SW12V X_SW12V X_SW3R8V X_SW3R8V P_ON_H X_SW3R8V P_SAVE_L FANLOCK FAN_GND FANOUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
A
5
1
NC
VO
V OUT
2
3
4
LB1504 J0JKB0000003
6
C1511 F1H1A105A028
C1510 F1H1A105A028
C1508 F1H1A105A028
C1503 F2A1A6810022
C1512 F1H1A105A028
C1504 F2A1E1010067
G1501$
LB1502 J0JKB0000003
A
C1515 F2A1E4700048
LB1506 J0JKB0000003
C1518 10V100
7 8 9 10
TO MAIN NET SECTION (3/4)
B C D E F G
C1509
0.01
DMR-EH55EE/GC/GCS/GN Main Net(1/4) Section (Main P.C.B.(1/4)) Schematic Diagram(M)
1
2
3
4
5
51
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M)
T AV GND AV T X_SW_12R4V T DDGND T BOOSTER+5V AV T AV2-8PIN AV X_SW_5R8V AV AV AV G_IIC_DATA_A T G_IIC_CLK_A T G_TU_VIDEO_AAV AFC T T SW2 TU_REG5V DE
T
IOPWR_SAVE_H T
LOCATION MAP
X_SW_5R2V
TU_P_ON_H
PS_11R6V
PS_5V
A
1/4 2/4
3/4
4/4
ZJ7402 K9ZZ00001279 ZJ7404 K9ZZ00001279
1 2 3 3 2 1
1 2
TO PS7801 TUNER PACK P.C.B. PP7401 K1KA18AA0288
3
TL7402
QR7401 UNR521300L (UN5213-TX)
IC7403 C0CBCDD00025 (MM1685A)
PS5V 8
VIN
7
NC
6
NC
5
ON[H]
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
GND BOOSTER5V RFC_AUDIO[EB] RFC_AMUTE[EB] GND PS5V CPSVOUT[EB] GND TUREG5V SW2 IICCLK IICDATA AFC AUDIOOUT SIFOUT UNREG38V TUNERVIDEOIN GND (TUNER PACK)
VOUT
1
2
3
C7406 F1H1A105A028
C7404 F1H1A105A028
4
0.01
GND
NC
CN
4
C7402
G_SIFIN_A DE G_TU_A_IN_A DE GND DE
5
ZJ7403 K9ZZ00001279 BOOSTER 5V
IC7402 C0CBCDC00052 (S-815A50AMC-I3JTFG)
3 2 1
PS11R6V
5
4
IC7401 C0CBCYG00004 (PQ200WNA1ZPH)
ON[H] VOUT VADJ GND
VO VIN
1
NC GND CNT
2 3
1
2
3
4
5
M:Main Net Section:(Page: A ) AV:A/V I/O Section:(Page: B ) DE:Nicam Decoder Section:(Page: C ) T:Timer Section:(Page: D )
C7413 F1H1A105A028
10K
VIN
C7412 F1H1A105A028
6
R7444 30[D]
R7402
QR7402 UNR511200L
R7446 2000[D]
7 8 9 10
J0JGC0000020
C7439 0.1
LB7401
R7445 6800[D]
K7403 VWJ0795=10
C7401 F2A1C471A628
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
Q7402 2SD1819A0L
UNREG_38V
R7401 100K
T
TO MAIN NET SECTION (4/4)
H
I
J
K
L
M
DMR-EH55EE/GC/GCS/GN Main Net(2/4) Section (Main P.C.B.(1/4)) Schematic Diagram(M)
6
7
8
9
10
52
DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
13.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M)
A
B
C
TO MAIN NET SECTION (1/4)
D
E
F
G
A
AV T T T
ANA5V P_OFF_L DR_P_ON_H HDD_PFAIL IC1506 C0DAEYH00002 DR5V 2 4 VIN VOUT TO P59001 DIGITAL P.C.B. (MODEL SELECT SECTION) P7402 K1KA88A00002 DGND 1 3 DGND 5 DGND 7 DGND 9 DGND 11 DGND XINTP 13 SCLK 15 XINTM 17 SBPTM 19 SBMTP 21 XMPREQ 23 25 AU5V XDMUTE 27 AADC_L 29 AADC_R 31 AUGND 33 AUGND 35 AUGND 37 39 MIXLOUT_DM 41 MIXROUT_DM 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 DGND DGND DGND DGND YOUT_DM DGND COUT_DM DGND RPROUT_DM DGND GPYOUT_DM DGND BPBOUT_DM DGND V_YIN_DM DGND CPNCIN_DM DGND BS_ON DGND G_IN DGND B_IN
1 2
3 4
C
ZJ7401 K9ZZ00001279
3 2
DR12V
Q1509 B1DHED000008 (UPA1717G-E1-A)
5
SOURSE DRAIN SOURSE DRAIN SOURSE DRAIN GATE DRAIN
1
C1528 1
22K
1
2
7
8
ON[H] GNDSENSE
6
R1519
3
L1504 VWJ0795
1
3
5 C1525 0.1
4
22K
5
F2A1A470A388
R1509 R1511 39K[D] 1500[D]
F2A1A101A389
R1518
LB7413 LB7414 LB7416
J0JCC0000164 J0JCC0000164 J0JCC0000164
QR1501 UNR521300L
25V100
C1541
C1523
R1510 11K[D]
C1524
LB7406 J0JCC0000164
R1502 10K
Q1501 B1DHED00008
6
IC1522 C0EBJ0000143 (BD4746G-TR)
C1519 1
5
4
VCC NC
1
VOUT GND GND
R1505 82K SOURSE DRAIN SOURSE DRAIN SOURSE DRAIN GATE DRAIN 1 8
L1505 100u
LB7410 LB7415 LB7417 LB7418 LB7419
J0JCC0000103 J0JCC0000103 R7448 1800 J0JCC0000103 J0JCC0000103 J0JC