DMR-EZ47VP / DMR-EZ475VP 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.
DMR-EZ47VP / DMR-EZ475VP 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"...
DMR-EZ47VP / DMR-EZ475VP 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.
DMR-EZ47VP / DMR-EZ475VP 6 Operation Instructions 6.1. (DVD) Taking out the Disc from RAM-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 6.1.1. (DVD) Forcible Disc Eject 6.1.1.1. (DVD) 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.
Page 13
DMR-EZ47VP / DMR-EZ475VP 1. Turn off the power and pull out AC cord. 2. Remove the Top Case. 3. Push in SLIDE CAM by Eject Pin(JSJ0484) or minus screw driver (small) to eject tray slightly. 4. Push out Tray by Eject Pin (JZS0484) or minus screw driver (small).
DMR-EZ47VP / DMR-EZ475VP 6.2. (VHS) Removing Cassette Tape manually When the cassette tape could not be uninstalled from an electrical malfunction, there are 2 ways to remove a cassette tape. 6.2.1. (VHS) Removal by compulsory unloading. If Service Mode can be activated when the power can not be turned on, this operation is able.
Page 15
DMR-EZ47VP / DMR-EZ475VP 7. Set the Position Switch to EJECT POSITION certainly and attach the mechanism to chassis as shown below. 3. Rotate the Main Cam Gear counter-clockwise until just before the unloading will be completed as shown below. .
DMR-EZ47VP / DMR-EZ475VP 7 Service Mode 7.1. (DVD) Self-Diagnosis and Special Mode Setting 7.1.1. (DVD) 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.
Page 17
DMR-EZ47VP / DMR-EZ475VP Error Code Diagnosis contents Description Monitor Display Automatic FL display Serial Communication Error Please confirm Serial Communication No display between VHS Microprocessor terminal of Microprocessor. and Timer Microprocessor. NOTE: If F09 appears just after updating Firmware, pull off and insert AC plug, then it will disappear.
Page 18
DMR-EZ47VP / DMR-EZ475VP Error Code Diagnosis contents Description Monitor Display Automatic FL display PLEASE Unit is in termination process Unit is in termination process now. No display WAIT “BYE” is displayed and power will be turned off. In case “Quick Start” of setup menu is ON, it is displayed in restoration operation for AC off.
Page 19
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description Front Key Aging Contents (Example):...
Page 20
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description Front Key Demonstration Ejection of the disc is prohibited. *When lock the tray. When the power is on, press lock/unlock The lock setting is effective until unlocking the [STOP] and [POWER] keys...
Page 21
DMR-EZ47VP / DMR-EZ475VP 7.1.3. (DVD) Service Modes at a glance Service mode setting: While the power is off, press [STOP], [VHS to DVD COPYING] and [OPEN / CLOSE] simultaneously for five seconds. Item FL display Key operation Mode name Description...
Page 22
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description (Remote controller key) Audio Pattern Output The audio pattern stored in the internal Initial mode (Audio 48kHz) Press [2] [3] in service mode. memory is output (Lch: 1kHz/-18dB) (Rch: 400Hz/-18dB) *Audio sound clock switching operation of Audio 44.1kHz/48kHz switching...
Page 23
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description (Remote controller key) RAM Drive Last Error RAM Drive error code display. 1. Error Number is displayed for 5 Press [4] [2] in service mode. *For details about the drive error code, refer seconds.
Page 24
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description (Remote controller key) Laser power confirmation Drive state is judged based on difference into RAM between laser power value at shipping and Drive in service mode. (Other present laser power value.
Page 25
DMR-EZ47VP / DMR-EZ475VP Item FL display Key operation Mode name Description (Remote controller key) Display the Error History Display the Error History stored on the unit. Display reason of error for 5 Press [6] [5] in service mode. seconds. Then press [0] [1] ~ [1] [9], the past 19 error histories are displayed.
DMR-EZ47VP / DMR-EZ475VP 7.2. (VHS) Self-Diagnosis and Special Mode Setting 7.2.1. (VHS) Self-Diagnosis Functions This model has a self-diagnosis and display function. If the VHS section detects trouble during installation or during use, one of the following Error Codes will automatically appear in the display on VHS side. Error Codes are displayed in the form of a single English letter followed by two numbers, as for example "H01".
Page 27
DMR-EZ47VP / DMR-EZ475VP 7.2.2. (VHS) Special Modes Setting Item FL display Key operation Mode name Description Front Key Tracking Center Tape Tracking is adjusted to center No display. During PLAYBACK, press [CH UP] FIX position. DOWN] keys simultaneously. VHS Service Mode...
Page 28
DMR-EZ47VP / DMR-EZ475VP Service Contents Contents of Indication on minute Contents of Indication on second Remarks Number Indication for the Mechanism position Ordering for the Motors There are next conditions in this inner data (Real time) (Real time) mode for enable the mechanism...
Page 29
DMR-EZ47VP / DMR-EZ475VP 7.2.4.2. (VHS) Condition for clearing the self-diagnosis history 1. A case of that press the STOP key and the EJECT key simultaneously over 5 seconds. 7.2.4.3. (VHS) Indication of the self-diagnosis history. 1. The self-diagnosis histories and its supplementary data could be indicated on the FIP with Service mode of number from 3 to 2.
Page 30
DMR-EZ47VP / DMR-EZ475VP <Supplementary Data 4> (LM Information) Result of request of driving Loading Motor. Display Description There was no change of mechanism position. (Loading Motor was OFF) There was some change of mechanism position. (Loading Motor was ON) 7.2.5.
Page 31
DMR-EZ47VP / DMR-EZ475VP Tape Type The aim of Tape position between the starting edge and the finishing edge 60 min. or less type (Large Hub) The Tape position is divided into 6 stages between the Tape beginning edge: "A " and the Tape end edge: "5".
DMR-EZ47VP / DMR-EZ475VP 8 Service Fixture & Tools (For DVD) Part Number Description Compatibility RFKZ0168 Extension Cable (Power & Digital I/F P.C.B. - FAN / 3 Pin) Same as E50 / ES30V / ES40V Series RFKZ0169 Extension Cable (Power & Digital I/F P.C.B. - DVD Drive / 4 Pin)
DMR-EZ47VP / DMR-EZ475VP 9 Assembling and Disassembling Instructions 9.1. 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.
DMR-EZ47VP / DMR-EZ475VP 9.3. Caution with inserting cassette tape when disassembling the unit Note1: For description of the disassembling procedure, see the section 9.4. Note2: Video Cassette might not enter when a strong lighting is applied to VHS Mechanism when Video Cassette is inserted. Please...
DMR-EZ47VP / DMR-EZ475VP arrow. 9.4. Top cover 1. Remove the 4 screws (A) and 3 screws (B). 2. Slide Top cover rearward and open the both ends at rear side of the Top cover a little and lift the Top cover in the direction of the arrows.
DMR-EZ47VP / DMR-EZ475VP 9.6. Front (L) P.C.B. & Front (R) P.C.B. 9.6.1. Front (L) P.C.B. 1. Remove 4 tabs to remove Front (L) P.C.B.. 9.6.2. Front (R) P.C.B. 1. Remove 3 screws (A) and tab to remove Front (R) P.C.B..
Page 38
DMR-EZ47VP / DMR-EZ475VP 9.6.4. Assembly of Blinder Panel and Blinder Spring Step 3 : Slide Blinder Panel into shaft hole of Front Panel. Step 1 : Insert Blinder Spring into shaft of Blinder Panel. Step 4 : Slide down Blinder Panel to touch the shaft on top of the rib.
DMR-EZ47VP / DMR-EZ475VP 9.7. DVD drive 9.8. SD/DV Jack P.C.B. 1. Remove 3 Screws (A). 1. Remove 2 Screws (A) to remove SD/DV jack P.C.B.. 2. Disconnect FFC and Wire with connector, remove DVD drive.
DMR-EZ47VP / DMR-EZ475VP 9.9. Rear Panel, Fan Motor 9.10. Digital P.C.B. 9.9.1. Only Fan motor 1. Disconnect Fan Connector. 2. Remove 2 Screws (A) to Remove Fan Motor. 1. Remove 2 Screws (A) and 2 FFCs. And lift up Digital P.C.B. slightly so to disconnect connectors to remove Digital P.C.B..
DMR-EZ47VP / DMR-EZ475VP 9.11.1. Caution for attaching VHS 9.11. VHS Mechanism Unit Mechanism Unit 1. Disconnect 3 Connectors (P1531, P2501 and P4002). 1. Because Position SW should be set to "Eject Position", 2. Remove 3 Screws (A), Screw (B) , Screw (C) and Screw refer to fig.(A) and set the position switch so that the boss...
DMR-EZ47VP / DMR-EZ475VP 10 Measurements and Adjustments 10.1. Service Positions Note: For description of the disassembling procedure, see the section 9. 10.1.1. Checking and Repairing of Power & Digital I/F P.C.B.
Page 44
DMR-EZ47VP / DMR-EZ475VP 10.1.2. Checking and Repairing of Main P.C.B.
Page 45
DMR-EZ47VP / DMR-EZ475VP 10.1.3. Checking and Repairing of Digital P.C.B.
Page 46
DMR-EZ47VP / DMR-EZ475VP 10.1.4. Checking and Repairing of DVD...
DMR-EZ47VP / DMR-EZ475VP 10.2. Caution for Replacing Parts 10.2.1. Notice after replacing Digital P.C.B. [TM L1] is displayed, after replacing Digital P.C.B. Once power off, and start up again. 10.2.2. Items that should be done after replacing parts...
DMR-EZ47VP / DMR-EZ475VP 10.3. Standard Inspection Specifications after Making Repairs After making repairs, we recommend performing the following inspection, to check normal operation.
Page 51
DMR-EZ47VP / DMR-EZ475VP Use the following checklist to establish the judgement criteria for the picture and sound. Item Contents Check Item Contents Check Block noise Distorted sound Crosscut noise Noise (static, background noise, etc.) Dot noise The sound level is too low.
DMR-EZ47VP / DMR-EZ475VP 14 Appendix for Schematic Diagram 14.1. Voltage and Waveform Chart Note) Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
DMR-EZ47VP / DMR-EZ475VP 14.2. Abbreviations INITIAL/LOGO ABBREVIATIONS ERROR TORQUE CONTROL ERROR TORQUE CONTROL 14.2.1. DVD REFERENCE ENCSEL ENCODER SELECT INITIAL/LOGO ABBREVIATIONS ETMCLK EXTERNAL M CLOCK (81MHz/40.5MHz) A0~UP ADDRESS ETSCLK EXTERNAL S CLOCK (54MHz) ACLK AUDIO CLOCK FBAL FOCUS BALANCE AD0~UP...
Page 105
DMR-EZ47VP / DMR-EZ475VP INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS READ ENABLE VBLANK V BLANKING RFENV RF ENVELOPE COLLECTOR POWER SUPPLY RF PHASE DIFFERENCE OUTPUT VOLTAGE (CD-ROM) REGISTER SELECT VCDCONT VIDEO CD CONTROL (TRACKING RSEL RF POLARITY SELECT BALANCE) RESET DRAIN POWER SUPPLY VOLTAGE...
Page 106
DMR-EZ47VP / DMR-EZ475VP 14.2.2. VHS 3-1. ABBREVIATIONS 4.43 NTSC L 443NT [L] BILINGUAL BILINGUAL L A. COMP AUDIO COMPONENT SIGNAL BIL [L] BIL. [H] BILINGUAL H A. COMPO AUDIO COMPONENT SIGNAL BIL/M1 [L] BILINGUAL L AUDIO DUBBING PAUSE L A. D.P [L]...
Page 107
DMR-EZ47VP / DMR-EZ475VP CYL GND CYLINDER GND FULL. E. 12V FULL ERASE 12V D.F.M. REC [H] DELAIED FM RECORDING H GND [A] GND (ANALOG) D. FM REC [L] DELAIED FM RECORDING L GND [TU] GND (TUNER) D. GND DIGITAL GND GND/N.
Page 108
DMR-EZ47VP / DMR-EZ475VP POWER OFF H LINE IN [R] LINE INPUT (R) P-OFF [H] POWER OFF L LINE OUT [L] LINE OUTPUT (L) P-OFF [L] LINE OUT [R] LINE OUTPUT (R) P. FAIL POWER FAILURE DETECT LP H POWER OFF H LP [H] P.
Page 109
DMR-EZ47VP / DMR-EZ475VP RF OUT RF OUTPUT SYSCON 5V SYSTEM CONTROL 5V RF Y RF LUMINANCE SIGNAL SYSTEM SYSTEM SW RF. Y. IN RF LUMINANCE SIGNAL INPUT T-PHOTO TAKE-UP PHOTO TRANSISTOR RF. Y. OUT RF LUMINANCE SIGNAL OUTPUT T-RL. PLS TAKE-UP REEL PULSE ROTAR.
DMR-EZ47VP / DMR-EZ475VP 15.2. Replacement Parts List Notes: Ref. No. Part No. Part Name & Remarks Description *Important safety notice: C3011 F1H1C104A071 16V 0.1U C3012 F2A0J470A824 6.3V 47P Components identified mark have special C3013 F2A1C100B099 16V 10P characteristics important for safety.
Page 115
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description C4004 ECJ1VB1H182K 50V 1800P C4823 ECJ1VB1H103K 50V 0.01U C4005 F2A0J220A878 6.3V 22P C4827 ECJ1VF1C104Z 16V 0.1U C4006 F2A1H4R7B033 50V 4.7U...
Page 116
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description D7506 B0AACK000004 DIODE P2501 K1MN07A00019 CONNECTOR(7P) D7507 MAZ4091NHF DIODE P2571 K1KA08A00355 CONNECTOR(8P) P3001 K1MN09A00022 CONNECTOR(9P) DP7501 A2BD00000168 DISPLAY TUBE...
Page 117
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description R3002 ERJ3GEYJ622V 1/10W 6.2K R4518 ERJ3GEYJ622V 1/10W 6.2K R3003 ERDS2TJ471T 1/4W 470 R4519 ERJ3GEYJ753V 1/10W 75K R3009 ERJ3GEYJ153V 1/10W 15K R4520 ERJ3GEYJ472V 1/10W 4.7K...
Page 118
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description R6006 ERJ3GEYJ183V 1/10W 18K W705 ERJ8GEY0R00V 1/4W 0 R6008 ERJ3GEYJ222V 1/10W 2.2K W706 ERJ8GEY0R00V 1/4W 0 R6012 ERJ3GEYJ221V 1/10W 220...
Page 119
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description W778 ERJ3GEY0R00V 1/10W 0 S27509 EVQ11G07K SWITCH,SELECT S27510 EVQ11G07K SWITCH,RESET X3002 H0D357400067 OSCILLATOR X6001 H0D120500009 OSCILLATOR VEP73144A SD/DV JACK (RTL) P.C.B.
Page 120
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description C7301 F2A0J220A878 6.3V 22P D1350 MA2J11100L DIODE C7302 F2A1H4R7B033 50V 4.7U D1351 MA2J11100L DIODE C7304 F2A0J220A878 6.3V 22P D1400...
Page 121
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description LB7811 J0JCC0000103 COIL R1370 ERJ3GEYJ391V 1/10W 390 LB7812 ERJ3GEY0R00V 1/10W 0 R1371 ERJ3GEYJ102V 1/10W 1K LB7813 ERJ3GEY0R00V 1/10W 0...
Page 122
DMR-EZ47VP / DMR-EZ475VP Ref. No. Part No. Part Name & Remarks Ref. No. Part No. Part Name & Remarks Description Description ZJ37001 K9ZZ00001279 EARTH PLATE VEM0797 LOADING MOTOR ZJ37002 K9ZZ00001279 EARTH PLATE VMB3550A CHANGING GEAR SPRING ZJ37003 K9ZZ00001279 EARTH PLATE...