DMR-EZ28P / DMR-EZ28PC 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-EZ28P / DMR-EZ28PC 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-EZ28P / DMR-EZ28PC 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-EZ28P / DMR-EZ28PC 6 Operation Instructions 6.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 6.1.1. Forcible Disc Eject 6.1.1.1. 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.
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DMR-EZ28P / DMR-EZ28PC 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. Remove the Sheet of the bottom side. 5. Slide SLIDE CAM by Eject Pin (JZJ0484) or minus screw driver (small) in the direction of arrow to eject tray slightly.
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DMR-EZ28P / DMR-EZ28PC Note: Use the replacement parts (RMV0335) when the Sheet has not being stickability.
DMR-EZ28P / DMR-EZ28PC 7 Service Mode 7.1. Self-Diagnosis and Special Mode Setting 7.1.1. Self-Diagnosis Functions Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has occurred. U**, H** and F** are stored in memory and held.
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DMR-EZ28P / DMR-EZ28PC Error Code Diagnosis contents Description Monitor Display Automatic FL display Initialization error when main When initialization error is detected after No display No display microprocessor is started up starting up main microprocessor for program for program recording...
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DMR-EZ28P / DMR-EZ28PC 7.1.2. Special Modes Setting Item FL display Key operation Mode name Description Front Key TEST Mode *All the main unit´s parameters are initialized. Press [STOP], [OPEN/CLOSE] keys simultaneously for five seconds when power is off. Rating password...
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DMR-EZ28P / DMR-EZ28PC Item FL display Key operation Mode name Description Front Key Aging Contents (Example): Demonstration Ejection of the disc is prohibited. *When lock the tray. When the power is on, press lock/unlock The lock setting is effective until unlocking the...
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DMR-EZ28P / DMR-EZ28PC Item FL display Key operation Mode name Description Front Key Progressive initialization The progressive setting is initialized to display before execution When the power is on (E-E mode), Interlace. leaves. press [STOP] [PLAY] simultaneously for 5 seconds.
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DMR-EZ28P / DMR-EZ28PC 7.1.3. Service Modes at a glance Service mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds. Item FL display Key operation Mode name Description (Remote controller key) Release Items Item of Service Mode executing is cancelled.
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DMR-EZ28P / DMR-EZ28PC Item FL display Key operation Mode name Description (Remote controller key) Laser Used Time Check laser used time (hours) of drive. Press [4] [1] in service mode. Indiction (*****) is the used time display in hour. Laser used time of DVD/ CD in...
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DMR-EZ28P / DMR-EZ28PC 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. seconds. *For details about the drive error code, refer When “INFO******”...
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DMR-EZ28P / DMR-EZ28PC 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.
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DMR-EZ28P / DMR-EZ28PC 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-EZ28P / DMR-EZ28PC 9 Assembling and Disassembling 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-EZ28P / DMR-EZ28PC 9.3. Top cover 1. Remove the 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.
DMR-EZ28P / DMR-EZ28PC CAUTION: When replacing Digital P.C.B., pay attention as below. 3. Confirm the Brinder spring is attached as following. 9.6. Rear Panel 1. Remove 6 Screws (A) and 2 Screws (B). 2. Unlock 2 Locking Tabs (A) to remove Rear Panel.
DMR-EZ28P / DMR-EZ28PC 9.8. DVD Drive 1. Remove 3 Screws (A) and wire with connector to remove DVD Drive. 9.7. Digital P.C.B. 1. Remove 2 Screws (A), wire and 2 FFCs. And lift up Digital P.C.B. slightly so to disconnect connectors to remove Digital P.C.B..
DMR-EZ28P / DMR-EZ28PC 3. Remove Side angle. 9.9. Main P.C.B. and SW P.C.B. Remove 4 Screws (A) and Rear angle to remove Main P.C.B.. 1. Remove SW P.C.B. 2. Remove 2 Screws (A) to remove Front angle.
DMR-EZ28P / DMR-EZ28PC 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 Digital P.C.B.
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DMR-EZ28P / DMR-EZ28PC 10.1.2. Checking and Repairing of Main P.C.B.
DMR-EZ28P / DMR-EZ28PC 10.2. Notice after replacing Digital P.C.B. [TM L1] is displayed after replacing Digital P.C.B. Once power off, and start up again. 10.3. Caution for Replacing Parts 10.3.1. Items that should be done after replacing parts...
DMR-EZ28P / DMR-EZ28PC 10.4. Standard Inspection Specifications after Making Repairs After making repairs, we recommend performing the following inspection, to check normal operation. Use the following checklist to establish the judgement criteria for the picture and sound. Item Contents Check...
DMR-EZ28P / DMR-EZ28PC 11.2. Analog Video Block Diagram IC3001 (VIDEO PROCESSOR) P55201 P7401 I2C5CK IIC CLOCK FROM/TO DIGITAL :REC SIGNAL :PB SIGNAL BLOCK SECTION P55201 P7401 I2C5DT IIC DATA JK3002 FRONT A/V IN JACK FRONT V IN S2 DET.IN VIDEO IN...
DMR-EZ28P / DMR-EZ28PC 11.3. Analog Audio Block Diagram :REC SIGNAL :PB SIGNAL IC7301 IC3001 (AUDIO MULTIPLEX DECODER) (AUDIO PROCESSOR) SCL 10 I2C5CK P7401 P55201 TU7801 DIGITAL/ANALOG TUNER TUN R IN G SIF A G TU R A SIF OUT PCFIL...
DMR-EZ28P / DMR-EZ28PC 11.4. Analog Timer Block Diagram IC7501 (TIMER) IC7591 (FAN MOTOR DRIVE) Q7591 FAN MOTOR FAN OUT P7509 FAN PWM 1 MOTOR DRIVE P7509 FAN LOCK DP7501 T7501 FAN LOCK 1 KEY1 G1-G4 TIMER S1-S18 DISPLAY DISPLAY Q7502...
DMR-EZ28P / DMR-EZ28PC 12 Schematic Diagram 12.1. Interconnection Schematic Diagram P7401 P55201 P55001 P66801 DI PON H DI PON H SCLK SCLK DI PON DL H DI PON DL H PP7201 P7502 XINTM XINTM HDMI MONI HDMI MONI AD5V AD5V...
DMR-EZ28P / DMR-EZ28PC 12.3. AV IO (1/4) Section (Main P.C.B. (2/4)) Schematic Diagram (A) P:Power Supply Section:(Page: A:AV IO Section:(Page: TU:Tuner Section:(Page: T:Timer Section:(Page: 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-EZ28P / DMR-EZ28PC 12.4. AV IO (2/4) Section (Main P.C.B. (2/4)) Schematic Diagram (A) P:Power Supply Section:(Page: A:AV IO Section:(Page: TU:Tuner Section:(Page: T:Timer Section:(Page: JK3003 K2HA304B0007 NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. K2HA304B0003 THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
DMR-EZ28P / DMR-EZ28PC 12.5. AV IO (3/4) Section (Main P.C.B. (2/4)) Schematic Diagram (A) P:Power Supply Section:(Page: A:AV IO Section:(Page: TU:Tuner Section:(Page: AV IO SECTION T:Timer Section:(Page: (1/4) NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.
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L CH TUN L IN L1 L IN L ch L2 L IN A OUT R2 A OUT R2 A OUT L2 A OUT L2 IC3001 Detail Block Diagram IC4001 Detail Block Diagram IC4901 Detail Block Diagram DMR-EZ28P/PC IC-Detail Block Diagram...
DMR-EZ28P / DMR-EZ28PC 12.9. DV Jack Schematic Diagram TO P55101 DIGITAL P.C.B. (AVENC/RTSC/AVDEC/MAIN CPU-1 Section (1/4)) P37001 DV Jack K1MN07AA0003 P37002 RET1 K1FY104B0006 TPB- TPB- TPB+ TPB+ TPA- TPA- TPA+ TPA+ RET2 DMR-EZ28P/PC K9ZZ00001279 NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.
DMR-EZ28P / DMR-EZ28PC 12.11. SW Schematic Diagram 12.13. Front (R) Schematic Diagram IC7701 PNA4618M13VT OPEN/CLOSE RET1 RET2 S7201 TO JW7501 EVQ11G07K MAIN P.C.B. TO PP7701 POWER (TIMER SECTION) FRONT (L) P.C.B. R7703 JW7001 P7001 K1KB06B00033 TO P7502 MAIN P.C.B. KEY_POWER...
DMR-EZ28P / DMR-EZ28PC 13.2. Front (L) P.C.B. 13.3. Front (R) P.C.B. FRONT (L) P.C.B. FRONT (R) P.C.B. DMR-EZ28P/PC DMR-EZ28P/PC FRONT (L) P.C.B. FRONT (R) P.C.B. (VEP73154A) (VEP73156A)
DMR-EZ28P / DMR-EZ28PC 13.4. DV Jack P.C.B. 13.5. SW P.C.B. DV JACK P.C.B. SW P.C.B. DMR-EZ28P/PC DMR-EZ28P/PC DV JACK P.C.B. SW P.C.B. (VEP73155A) (VEP70216A)
DMR-EZ28P / DMR-EZ28PC 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.
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DMR-EZ28P / DMR-EZ28PC IC7501 Re f No. MODE P LAY S TOP Re f No. IC7501 MODE P LAY S TOP IC7501 Re f No. MODE -8.2 -8.2 -8.1 P LAY -8.2 -8.2 -8.1 S TOP -8.2 -8.2 -8.1 IC7501 Re f No.
DMR-EZ28P / DMR-EZ28PC 15.2. Replacement Parts List Notes: Ref. Part No. Part Name & Remarks Description *Important safety notice: C1353 ECJ1VB1H103K 50V 0.01U Components identified mark have special C1361 F2A1A1010072 10V 100U C1362 ECJ1VB1C333K 16V 0.033U characteristics important for safety.
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DMR-EZ28P / DMR-EZ28PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C7314 F2A1H2R2B032 50V 2.2U DZ1101 J0LV00000001 SERGE ABSORBER (PC) C7316 ECJ1VB0J105K 6.3V 1U DZ1101 J0LY00000045 SERGE ABSORBER C7317 ECJ1VB0J105K 6.3V 1U...
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DMR-EZ28P / DMR-EZ28PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description P1240 K1KA04AA0180 CONNECTOR(4P) R4001 ERJ3GEYJ133V 1/10W 13K P7401 K1KY64A00001 CONNECTOR(64P) R4002 ERJ3GEYJ133V 1/10W 13K P7502 K1KB06B00033 CONNECTOR(6P) R4003 ERJ3GEYJ123V 1/10W 12K...
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DMR-EZ28P / DMR-EZ28PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R7551 ERJ3GEYJ470V 1/10W 47 W534 ERJ3GEY0R00V 1/10W 0 R7552 ERJ3GEYJ473V 1/10W 47K W535 ERJ3GEY0R00V 1/10W 0 R7553 ERJ3GEYJ473V 1/10W 47K W536...
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DMR-EZ28P / DMR-EZ28PC Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description RMA2049 REAR ANGLE P66801 K1KA06AA0231 CONNECTOR(6P) RMA2093 FRONT ANGLE P66804 K1FY104B0011 USB CONNECTOR RMC0728 EARTH SPRING P66805 K1NA09E00099 SD CARD CONNECTOR...