LG-DR1F9H-cd-sm 电路图 维修手册.pdf

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1、DVD RECORDER SERVICE MANUAL MODEL : DR1F9H CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETYPRECAUTIONS” IN THIS MANUAL. MODEL : DR1F9HSERVICE MANUAL P/NO : 3829RHN005L FEBRUARY,2006 RadioFans.CN 收音机爱 好者资料库 CONTENTS SECTION 1 . . . . SUMMARY SECTION 2 . . . . CABINET & MAIN CHASSIS SECTION 3 . . .

2、 . ELECTRICAL SECTION 4 . . . . RS-01A LOADER PART SECTION 5 . . . . REPLACEMENT PARTS LIST RadioFans.CN 收音机爱 好者资料库 1-1 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS. 1-2 SERVICING PRECAUTIONS. 1-3 General Servicing Precautions Insulation Checking Prodedure Electr

3、ostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM IC SETTING. 1-4 FLASH UPGRADE. 1-5 LOADER UPGRADE. 1-7 SPECIFICATIONS. 1-9 RadioFans.CN 收音机爱 好者资料库 1-21-2 IMPORTANT SAFETY NOTICE This manual was prepared for use only by properly trained audio-video service technicians. When servicing thi

4、s product, under no circumstances should the original design be modified or altered without permission from LG Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to orig

5、inal layout upon completion of repairs. Special components are also used to prevent x-radiation, shock and fire haz- ard. These components are indicated by the letter “x” included in their compo- nent designators and are required to maintain safe performance. No deviations are allowed without prior

6、approval by LG Electronics Corporation. Circuit diagrams may occasionally differ from the actual circuit used. This way, implementation of the latest safety and performance improvement changes into the set is not delayed until the new service literature is printed. CAUTION: Do not attempt to modify

7、this product in any way. Never perform customized installations without manufacturers approval. Unauthorized modi- fications will not only void the warranty, but may lead to property damage or user injury. Service work should be performed only after you are thoroughly familiar with these safety chec

8、ks and servicing guidelines. GRAPHIC SYMBOLS The exclamation point within an equilateral triangle is intended to alert the service personnel to important safety information in the service literature. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the se

9、rvice personnel to the presence of noninsulated “dangerous voltage” that may be of sufficient magnitude to constitute a risk of electric shock. The pictorial representation of a fuse and its rating within an equi- lateral triangle is intended to convey to the service personnel the following fuse rep

10、lacement caution notice: CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED NEAR EACH FUSE. SERVICE INFORMATION While servicing, use an isolation transformer for protection from AC line shock. After the original service problem has been

11、corrected, make a check of the fol- lowing: FIRE AND SHOCK HAZARD 1. Be sure that all components are positioned to avoid a possibility of adjacent component shorts. This is especially important on items trans-ported to and from the repair shop. 2. Verify that all protective devices such as insulator

12、s, barriers, covers, shields, strain reliefs, power supply cords, and other hardware have been reinstalled per the original design. Be sure that the safety purpose of the polarized line plug has not been defeated. 3. Soldering must be inspected to discover possible cold solder joints, solder splashe

13、s, or sharp solder points. Be certain to remove all loose foreign par- ticles. 4. Check for physical evidence of damage or deterioration to parts and compo- nents, for frayed leads or damaged insulation (including the AC cord), and replace if necessary. 5. No lead or component should touch a high cu

14、rrent device or a resistor rated at 1 watt or more. Lead tension around protruding metal surfaces must be avoided. 6. After reassembly of the set, always perform an AC leakage test on all exposed metallic parts of the cabinet (the channel selector knobs, antenna terminals, handle and screws) to be s

15、ure that set is safe to operate without danger of electrical shock. DO NOT USE A LINE ISOLATION TRANS- FORMER DURING THIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by a .15 mfd 150V AC type capaci

16、tor between a known good earth ground water pipe, conduit, etc.) and the exposed metal- lic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug by using a non-polarized adaptor and repeat AC voltage measurements for each

17、 exposed metallic part. Voltage measured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any value exceeding this limit consti- tutes a potential shock hazard and must be corrected immediately. TIPS ON PROPER INSTALLATION 1. Never install any receiver in a closed-in recess, cubb

18、yhole, or closely fitting shelf space over, or close to, a heat duct, or in the path of heated air flow. 2. Avoid conditions of high humidity such as: outdoor patio installations where dew is a factor, near steam radiators where steam leakage is a factor, etc. 3. Avoid placement where draperies may

19、obstruct venting. The customer should also avoid the use of decorative scarves or other coverings that might obstruct ventilation. 4. Wall- and shelf-mounted installations using a commercial mounting kit must follow the factory-approved mounting instructions. A product mounted to a shelf or platform

20、 must retain its original feet (or the equivalent thickness in spacers) to provide adequate air flow across the bottom. Bolts or screws used for fasteners must not touch any parts or wiring. Perform leakage tests on customized installations. 5. Caution customers against mounting a product on a slopi

21、ng shelf or in a tilt- ed position, unless the receiver is properly secured. 6. A product on a roll-about cart should be stable in its mounting to the cart. Caution the customer on the hazards of trying to roll a cart with small cast- ers across thresholds or deep pile carpets. 7. Caution customers

22、against using extension cords. Explain that a forest of extensions, sprouting from a single outlet, can lead to disastrous conse- quences to home and family. A.C. Voltmeter 1500 OHM 10 WATT Place this probe on each exposed metal part. Good Earth Ground such as the Water Pipe, Conduit, etc. 0.15uF PR

23、ODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1-3 SERVICING PRECAUTIONS CAUTION : Before servicing the DVD Recorder covered by this service data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances create conflict between the following se

24、rvic- ing precautions and any of the safety precautions in this pub- lications, always follow the safety precautions. Remembers Safety First: General Servicing Precautions 1. Always unplug the DVD Recorder AC power cord from the AC power source before: (1)Removing or reinstalling any component, circ

25、uit board, module, or any other assembly. (2)Disconnection or reconnecting any internal electrical plug or other electrical connection. (3)Connecting a test substitute in parallel with an elec- trolytic capacitor. Caution : A wrong part substitution or incorrect polarity installation of electrolytic

26、 capacitors may result in an explosion hazard. 2. Do not spray chemicals on or near this DVD Recorder or any of its assemblies. 3. Unless specified otherwise in this service data, clean electrical contacts by applying an appropriate contact cleaning solution to the contacts with a pipe cleaner, cott

27、on-tipped swab, or comparable soft applicator. Unless specified otherwise in this service data, lubrication of contacts is not required. 4. Do not defeat any plug/socket B+ voltage interlocks with whitch instruments covered by this service manual might be equipped. 5. Do not apply AC power to this D

28、VD Recorder and/or any of its electrical assemblies unless all solid-state device heat sinks are cerrectly installed. 6. Always connect test instrument ground lead to the appropriate ground before connection the test instrument positive lead. Always remove the test instrument ground lead last. Insul

29、ation Checking Procedure Disconnect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance meter(500V) to the blades of the attachment plug. The insulation resis- tance between each blade of the attachment plug and acces- sible conductive parts (Note 1) should

30、 be more than 1M- ohm. Note 1 : Accessible Conductive Parts including Metal pan- els, Input terminals, Earphone jacks, etc. Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatic

31、ally Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handli

32、ng any semiconductor compo- nent or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commer- cially available discharging wrist strap device, which should be removed for potential shock reasons prior t

33、o 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 grouned-tip soldering iron to solder or uns

34、older ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified a “anti-static” can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charge sufficient to damage ES device

35、s. 6. Do not remove a replacement ES device from its protec tive 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 befo

36、re 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. Minim

37、ize bodily motions when handling unpackaged replacement ES devices. (Normally harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static elec- tricity sufficient to damage an ES device.) 1-4 SERVICE INFORMATION FOR EEPRO

38、M IC SETTING MICOM START Press the CLEAR key on the Remote controller and the PROG. - key one the Front Panel the same time, then it goes in to Tracking initial mode. EEPROM ID CHECK 2 BYTE(B3,248,249) NAMEHEXBINARY OPT1 91 00000000 OPT2 20 00000000 OPT30000000000 OPT4 49 00000000 OPT5 8F 00000000 O

39、PT6 9E 00000000 OPT7 15 00000000 OPT8 13 00000000 WRITE : OKEXIT : MP MOVE : EDIT : MASK : 00 , EEP : FF(0R), D17 (Each mask ,eeprom, It shows a development release version.) * EEPROM INITIAL * - SETUP is displayed in the field if pressing the Front PROG. - & + Key with the Remote Control number cle

40、ar key pressed in the status of powering on. - AUTO SEARCH is done since the initial screen of ACMS is serviced if powering on. DETECT NEW EEPROM (OPTION EDIT SCREEN) OPTION condition of Present time the CHECK There is a Possibility of doing and the OPTION the REWRITE it is possible. OPTION DATA REA

41、D 5TIME & COMPARE MICOM NORMAL OPERATION START ID OK? OPTION CONFIRMATION MODE Yes Yes No No 1-5 FLASH UPGRADE 1. MAKING UPGRADE DISC 1) Physical format must be ISO9660 or JOLIET file system. 2) CD Volume label is unimportant. 3) Write DR100 BE Upgrade File on Root. 2. UPGRADE FLASH 1) Put Flash Upg

42、rade Disc in the DVD Player. 2) After Disc Reading, you can see below screen. 3) Press REC KEY 3 times. It will start Inspection. * OPTIONAL PARTS DR100 8601 64M NTSC) : LG_DR100_8601NT64_UPDATE.590 DR100 860164M (PAL ) : LG_DR100_8601PAL64_UPDATE.590 DR100 860132M (NTSC) : LG_DR100_8601NT_UPDATE.59

43、0 DR100 860132M (PAL ) : LG_DR100_8601PAL_UPDATE.590 DR100 8603 64M (NTSC) : LG_DR100_8603NT_UPDATE.590 DR100 8603 64M (PAL ) : LG_DR100_8603PAL_UPDATE.590 1-6 4) You can see both current and upgrade version. Press REC KEY. 5) Upgrading. 6) After Upgrading, you can see the below screen. And automati

44、cally open tray. Remove the Disc. Reboot the set. 1-7 LOADER UPGRADE 1.MAKING UPGRADE DISC 1) Physical format must be ISO9660 or JOLIET file system 2) Name the Volume label as “DRIVE_UP”. 3) Write DvdSLxx.rs1, YASMSLxx.BIN on Root like below.(xx is Version) 2. LOADER UPGRADE 1) Put Loader Upgrade Di

45、sc in the DVD Player. 2) After Disc Reading, you can see the below screen. 3) Press REC KEY 3 times. 1-8 4) After Tray open, remove the disc and close the tray. 5) It shows both the current version and upgrade version. Press REC KEY. 6) Upgrading. 7) After finishing Upgrade, it shows the below scree

46、n and powers off 1-9 SPECIFICATIONS GENERAL Power requirements AC 120V, 60 Hz Power consumption 22W Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without feet Mass (approx.) 4.1 kg Operating temperature 5C to 35C Operating humidity 5 % to 90 % Television system PAL I, B/G, I/I, SECAM D/K, K1 co

47、lor system Recording format PAL RECORDING Recording format DVD Video Recording, DVD-VIDEO Recordable media DVD-ReWritable, DVD-Recordable, DVD+ReWritable, DVD+Recordable, DVD+Recordable (Double Layer), DVD-RAM Recordable time DVD (4.7GB): Approx. 1 hour (XP mode), 2 hours (SP mode), 4 hours (LP mode

48、), 6 hours (EP mode) DVD+R DL (8.5GB): Approx. 3 hour (XP mode), 3 hours 40 minutes (SP mode), 7 hours 10 minutes (LP mode), 10 hours 30 minutes (EP mode) Video recording format Sampling frequency 27MHz Compression format MPEG 2 (VBR support) Audio recording format Sampling frequency 48kHz Compression format Dolb