Jvc-DRMH-300-SAA-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2006 Victor Company of Japan, Limited No.YD090 2006/1 HDD & DVD VIDEO RECORDER YD09020061 DR-MH300SAA TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、. 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、 . 1-6 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . 1-6 Since the whole mechanism assembly unit is replaced, the DVD recorder mechanism of this unit need not be adjusted. DR-MH300SAA D5HR10 Area Suffix AA - Australia STANDBY/ON PR HDDDVD RAM/RW ENTERNAVIGATIONPROG PR PUSH-OPEN This service manual is a service manual of a model in whic

5、h destination added to the issued service manual DR-MH300BE/EK, DR-MH300SE/EF/EK/ER, DR-ED400SE (issue number: YD089 2005/12). This service manual consists of only Parts List, Schematic diagrams and Instruction Book. Regarding service information other than these sections, refer to the service manua

6、l DR-MH300BE/EK, DR-MH300SE/EF/EK/ER, DR-ED400SE (issue number: YD089 2005/12). RadioFans.CN 收音机爱 好者资料库 1-2 (No.YD090) SPECIFICATION E.& O.E. Design and specifications subject to change without notice. Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks

7、 of Dolby Laboratories. “DTS” and “DTS DIGITAL OUT” are trademarks of Digital Theater Systems, Inc. This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Ma

8、crovision. Reverse engineering or disassembly is prohibited. G-CODE is a registered trademark of Gemstar Development Corporation. The G-CODE system is manufactured under license from Gemstar De- velopment Corporation. i-LINK is a trademark of Sony Corp . DR-MH300SAA GENERAL Power requirement AC 110

9、V - 240 V, 50 Hz/60 Hz Power consumption Power on : 36 W Power off : 6.4 W Temperature Operating : 5C to 35C Storage : -20C to 60C Operating position Horizontal only Dimensions (W H D) 435 mm 70 mm 300 mm Weight 4.5 kg VIDEO/AUDIO (DVD Deck) Recordable disc DVD-RAM 12 cm (4.7 GB/9.4 GB*1),DVD-RAM 8

10、cm (1.4 GB/2.8 GB*2),DVD-R 12 cm (4.7 GB),DVD-R 8 cm (1.4 GB),DVD-RW 12 cm (4.7 GB),DVD-RW 8 cm (1.4 GB) *1 9.4 GB double-sided discs *2 2.8 GB double-sided discs Recording format DVD-RAM : DVD Video Recording format DVD-R : DVD Video format, DVD Video Recording format DVD-RW : DVD Video format, DVD

11、 Video Recording format Recording time Maximum 8 hours (with 4.7 GB disc) (XP) : Approx. 1 hour, (SP) : Approx. 2 hours, (LP) : Approx. 4 hours, (EP) : Approx. 6 hours, (FR) : Approx. 1 hour - 8 hours Audio recording system Dolby Digital (2 ch) Linear PCM (XP mode only) Video recording compression s

12、ystem MPEG2 (CBR/VBR) VIDEO/AUDIO (HDD Deck) Capacity 160 GB Recording time (DV) : Approx. 11 hours,(XP) : Approx. 34 hours,(SP) : Approx. 69 hours,(LP) : Approx. 138 hours, (EP) : Approx. 209 hours,(FR480) : Approx. 300 hours Audio recording system Dolby Digital (2 ch) Linear PCM (XP mode only) Vid

13、eo recording compression system MPEG2 (VBR) Input/Output 21-pin SCART connectors IN/OUT X 1, IN/DECODER X 1 S-video input Y:1.0 Vp-p,75 ohms C : 0.3Vp-p, 75 ohms Video input 1.0 Vp-p, 75 ohms (pin jack) Audio input 2 Vrms (pin jack) i.Link 4-pin for DV Input/Output Component video output Y : 1.0 Vp-

14、p, 75 ohms PB/PR: 0.7 Vp-p, 75 ohms Corresponding to copy protection Digital audio output Coaxial Corresponding to Dolby Digital and DTS Digital Surround, Bit stream Selectable in digital audio output setting menu TUNER/TIMER Tuning system Frequency synthesised tuner Signal system PAL/SECAM colour s

15、ignal, 625 lines/50 fields TV channel storage capacity 99 positions (+AUX position) Channel coverage VHF : 44 MHz - 89 MHz/ 104 MHz - 300 MHz/ 302 MHz - 470 MHz UHF : 470MHz - 862MHz Memory backup time Approx. 10 minutes. RadioFans.CN 收音机爱 好者资料库 (No.YD090)1-3 SECTION 1 PRECAUTION 1.1Safety Precautio

16、ns (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those use

17、d in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and

18、 will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the p

19、rotection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identi

20、fied by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4)

21、 The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and d

22、ress should be observed, and it should be confirmed that they have been returned to normal, after reassem- bling. (5) Leakage shock hazard testing After reassembling the product, always perform an isola- tion check on the exposed metal parts of the product (an- tenna terminals, knobs, metal cabinet,

23、 screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester, measure the leakage current f

24、rom each exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter

25、 having, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15F AC-type capacitor between an ex- posed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to e

26、ach exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC

27、(r.m.s.). 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) I

28、t is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre-

29、forming repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are criti

30、cal for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version) Good earth ground Place this probe on each exposed metal part. AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

31、1500 10W 0.15 F AC TYPE RadioFans.CN 收音机爱 好者资料库 1-4 (No.YD090) 1.5Important for laser products 1.CLASS 1 LASER PRODUCT 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 3.CAUTION : There are no serviceable parts inside the Laser Unit. Do

32、 not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions. 4.CAUTION : The CD,MD and DVD player uses invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defea

33、ted. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure. ! Please use enough caut

34、ion not to see the beam directly or touch it in case of an adjustment or operation check. REPRODUCTION AND POSITION OF LABEL On mechaism assembly The photograph might be different from the actual thing. OR (No.YD090)1-5 1.6Hard Disk Drive (HDD) Handling Precautions The HDD is a precision device for

35、use in reading and writing a large amount of data on or from a disk rotating at a high speed. If it is not handled carefully, either abnormal operation may result or it may not be possible to read data. The HDD is sensitive to the following items and special care is required in safeguarding against

36、them when handling an HDD. Also take care in handling a set incorporating an HDD. (1) Vibrations and impacts (2) Static electricity (3) Rough handling 1.6.1Handling in transport, etc. Be sure to place the HDD in the manufacturers specified pack- age carton before transport. When receiving a package

37、containing an HDD, check that the package carton is not damaged (such as having holes in the carton, crushed corners, etc.). Do not impact the packaging carton when loading or unloading it. It is not permitted to use the inner package carton only for transporting an HDD. Do not stack package cartons

38、 one upon another. 1.6.2Handling an HDD in the stand-alone status When handling an HDD on a hard workbench, place an anti- static mat (rubber sheet) or similar object on the hard surface (to prevent any impacts occurring between the HDD and bench). Do not stack the HDDs one upon another. Do not knoc

39、k an HDD with a hard object (such as a screwdriv- er). Do not place an HDD on its side panel without using a support (do not place an HDD in an unstable position). 1.6.3Handling the installation of an HDD Place antistatic mats or similar sheets on all of the surfaces on which work is conducted or wh

40、en the HDD is transported. Do not permit the HDD to knock against the sets brackets. When screwing the brackets, be careful not to knock the HDD. When using a power screwdriver, use a low-shock model and arrange the tightening torque properly. When mounting an HDD in a main body, take care not to ap

41、ply excessive force to the brackets. HDD Do not throw or drop packages. Be sure to package and transport the HDDs correctly. 1-6 (No.YD090) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Please refer to DR-MH300BE, D

42、R-MH300BEK, DR-MH300SE, DR-MH300SEF, DR-MH300SEK,DR-MH300SER, DR-ED400SE (issue number : YD089 2005/12) about this section. SECTION 4 ADJUSTMENT Please refer to DR-MH300BE, DR-MH300BEK, DR-MH300SE, DR-MH300SEF, DR-MH300SEK,DR-MH300SER, DR-ED400SE (issue number : YD089 2005/12) about this section. SE

43、CTION 5 TROUBLESHOOTING Please refer to DR-MH300BE, DR-MH300BEK, DR-MH300SE, DR-MH300SEF, DR-MH300SEK,DR-MH300SER, DR-ED400SE (issue number : YD089 2005/12) about this section. (No.YD090)1-7 (No.YD090) DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture

44、, 221-8528, Japan Victor Company of Japan, Limited VPT Printed in Japan SCHEMATIC DIAGRAMS HDD & DVD VIDEO RECORDER No.YD090SCH 2006/1 COPYRIGHT 2006 Victor Company of Japan, Limited DR-MH300SAA CD-ROM No.SML200601 Since the whole mechanism assembly unit is replaced, the DVD recorder mechanism of th

45、is unit need not be adjusted. DR-MH300SAA D5HR10 Area Suffix AA - Australia STANDBY/ON PR HDDDVD RAM/RW ENTERNAVIGATIONPROG PR PUSH-OPEN This service manual is a service manual of a model in which destination added to the issued service manual DR-MH300BE/EK, DR-MH300SE/EF/EK/ER, DR-ED400SE (issue nu

46、mber: YD089 2005/12). This service manual consists of only Parts List, Schematic diagrams and Instruction Book. Regarding service information other than these sections, refer to the service manual DR-MH300BE/EK, DR-MH300SE/EF/EK/ER, DR-ED400SE (issue number: YD089 2005/12). ! CHARTS AND DIAGRAMS NOT

47、ES OF SCHEMATIC DIAGRAM Safety precautions The Components indentified by the symbolare critical for safety. For continued safety, replace safety critical components only with manufacturers recom- mended parts. 1. Units of components on the schematic diagram Unless otherwise specified. 1) All resista

48、nce values are in ohm. 1/6 W, 1/8 W (refer to parts list). Chip resistors are 1/16 W. K: K(1000), M: M (1000K) 2) All capacitance values are in F, (P: PF). 3) All inductance values are in H, (m: mH). 4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts list). 2. Indications of control voltage

49、AUX : Active at high. AUX or AUX(L) : Active at low. 3. Interpreting Connector indications Note: If the voltages are not indicated on the schematic diagram, refer to the voltage charts. 123 2.5 (5.0) 1.8 PB and REC modes (Voltage of PB and REC modes are the same) PB mode REC mode 4. Voltage measurement 1) Regulator (DC/DC CONV) circuits REC : Colour bar signal. PB : Alignment tape (Colour bar). : Unmeasurable or unnecessary to measure. 2) Indication on schematic diagram Voltage indications for REC and