LG-HDRF899X-hdd-sm 电路图 维修手册.pdf

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1、HDD/DVD RECORDER SERVICE MANUAL MODEL : RH200MH/HDRF899X MODEL : RH200MH/HDRF899XSERVICE MANUAL P/NO : AFN30347550 MAY,2006 CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETYPRECAUTIONS” IN THIS MANUAL. RadioFans.CN 收音机爱 好者资料库 CONTENTS SECTION 1 . . . .SUMMARY SECTION 2 . . . .CABINET & MAIN CHASSI

2、S SECTION 3 . . . .ELECTRICAL SECTION 4 . . . .RS-01A LOADER PART SECTION 5 . . . .REPLACEMENT PARTS LIST RadioFans.CN 收音机爱 好者资料库 1-2 SECTION 1 SUMMARY CONTENTS NEW FUNCTIONS OF HDD/DVD-RECORDER. 1-2 PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS. 1-3 SERVICING PRECAUTIONS. 1-4 General Servi

3、cing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM IC SETTING. 1-5 SPECIFICATIONS. 1-6 RadioFans.CN 收音机爱 好者资料库 1-3 NEW FUNCTIONS OF HDD/DVD-RECORDER HDMI HDMI IS THE SPECIFICATION FOR THE HIGH-DEFINITION MULTIMEDIA INTERFACE. HDMI IS PRO

4、VID- ED FOR TRANSMITTING DIGITAL TELEVISION AUDIOVISUAL SIGNALS FROM HDD-DVD RECORDER TO TELEVISION SETS, OTHER VIDEO DISPLAYS. HDMI CAN CARRY HIGH QUALITY MULTI-CHANNEL AUDIO DATAAND CAN CARRY ALL STANDARD AND HIGH DEFINITION CONSUMER ELECTRONICS VIDEO FORMATS. CONTENT PROTECTION TECHNOLOGY IS AVAI

5、LABLE. HDMI CAN ALSO CARRY CONTROL AND STATUS INFORMATION IN BOTH DIRECTIONS. AUDIO, VIDEO AND AUXILIARY DATA IS TRANSMITTED ACROSS THE THREE TMDS DATA CHANNELS. THE VIDEO PIXEL CLOCK IS TRANSMITTED ON THE TMDS CLOCK CHANNEL AND IS USED BY THE RECEIVER AS A FREQUENCY REFERENCE FOR DATA RECOVERY ON T

6、HE THREE TMDS DATA CHAN- NELS. VIDEO DATA IS CARRIED AS A SERIES OF 24-BIT PIXELS ON THE THREE TMDS DATA CHANNELS. TMDS ENCODING CONVERTS THE 8BIT PER CHANNEL INTO THE 10BIT DCBALANCED. VIDEO PIXEL RATES CAN RANGE FROM 25MHZ TO 165MHZ. THE VIDEO PIXELS CAN BE ENCODED IN EITHER RGB,YCBCR 4:4:4 OR YCB

7、CR 4:2:2 FORMATS. IN ALL THREE CASES, UP TP 24 BITS PER PIXEL CAN BE TRANSFERRED. FAST DUBBING DUBBING MEANS A COPYING FUNCTION BETWEEN HDD TO DVD DISCS. COPYING BETWEEN HDD TO DVD IS A COMPLETELY DIGITAL PROCESS AND THEREFORE INVOLVES NO LOSS OF QUALITY IN THE AUDIO OR VIDEO. SO THIS MEANS THAT COP

8、YING CAN BE CARRIED OUT AT THE MAXIMUM SPEED POSSIBLE. NORMAL DUBBING : SPEED RATE MAX X1 FAST DUBBING : SPEED RATE MAX X4 WHEN FAST DUBBING FROM HDD TO DVD , THE SPEED OF COPYING DEPENDS ON THE RECORDING MODE AND THE KIND OF USING THE DVD DISC, AND THIS MODE IS NOT AVAILABLE FOR EDITED VIDEO TITLE

9、IN HDD. WHEN FAST DUBBING FROM DVD TO HDD , ONLY AVAILABLE WHEN COPYING VR MODE DISC(DVD- RW) TO HDD , AND ONLY NORMAL DUBBING AVAILABLE WHEN COPYING VIDEO MODE DISC (DVD+R/RW, DVD-R) TO HDD 1-4 IMPORTANT SAFETY NOTICE This manual was prepared for use only by properly trained audio-video service tec

10、hnicians. When servicing this 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 lea

11、d dress must conform to original 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 deviation

12、s are allowed without prior 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. CAUTIO

13、N: Do not attempt to modify 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 fam

14、iliar with these safety checks 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 tri- ang

15、le is intended to alert the service personnel to the presence of noninsulated “dangerous voltage” that may be of sufficient magni- tude 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

16、personnel the following fuse replacement 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 or

17、iginal service problem has been 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 prot

18、ective devices such as insulators, 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 co

19、ld solder joints, solder splashes, 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

20、component should touch a high current 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 termi

21、nals, handle and screws) to be sure 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

22、by a .15 mfd 150V AC type capacitor 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

23、AC voltage measurements for each 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 rece

24、iver in a closed-in recess, cubbyhole, 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. Avoi

25、d placement where draperies may 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 produc

26、t mounted to a shelf or platform 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 again

27、st mounting a product on a sloping 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 pil

28、e carpets. 7. Caution customers 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 Wat

29、er Pipe, Conduit, etc. 0.15uF PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1-5 SERVICING PRECAUTIONS CAUTION : Before servicing the HDD/DVD Recorder cov- ered by this service data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances cr

30、eate conflict between the fol- lowing servicing precautions and any of the safety precau- tions in this publications, always follow the safety precau- tions. Remembers Safety First: General Servicing Precautions 1. Always unplug the HDD/DVD Recorder AC power cord from the AC power source before: (1)

31、Removing or reinstalling any component, circuit 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 inc

32、orrect polarity installation of electrolytic capacitors may result in an explosion hazard. 2. Do not spray chemicals on or near this HDD/DVD Recorder or any of its assemblies. 3. Unless specified otherwise in this service data, clean electrical contacts by applying an appropriate contact cleaning so

33、lution to the contacts with a pipe cleaner, cotton-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

34、 be equipped. 5. Do not apply AC power to this HDD/DVD 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. Alway

35、s remove the test instrument ground lead last. Insulation 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 pl

36、ug and acces- sible conductive parts (Note 1) should 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 electricit

37、y. Such components commonly are called Electrostatically 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

38、 by static electricity. 1. Immediately before handling 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 s

39、hould 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. Us

40、e only a grouned-tip soldering iron to solder or unsolder 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 gener

41、ate electrical charge sufficient to damage ES devices. 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

42、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

43、, and observe all other safety precautions. 8. Minimize 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 dam

44、age an ES device.) 1-6 SERVICE INFORMATION FOR EEPROM IC SETTING MICOM START EEPROM ID CHECK 2 BYTE(B3,248,249) NAMEHEXBINARY OPT10000000000 OPT2 0000000000 OPT3 00 00000000 OPT4 0000000000 (reserved) OPT5 00 00000000 (reserved) OPT6 0000000000 (reserved) OPT7 0000000000 (reserved) OPT8 00 00000000

45、(reserved) WRITE:OK EXIT:MENU,MP MOVE: EDIT : _ OPTION WRITE : OK (OK KEY IN) MASK : R00 , EEP : R00 , (D10) (Each mask ,eeprom, It shows a development release version.) DETECT NEW EEPROM (OPTION EDIT SCREEN) * EEPROM INITIAL * - SETUP is displayed in the field if pressing the Front ch- & ch+ Key wi

46、th the Remocon number clear key pressed in the status of powering on. - AUTO SEARCH is done since the initial screen of ACMS is serviced if powering on. OPTION DATA READ 5TIME & COMPARE MICOM NORMAL OPERATION START Press the CLEAR key on the Remote controller and the CH - key one the Front Panel the

47、 same time, then it goes in to Tracking initial mode. OPTION CONFIRMATION MODE ID OK? No No Yes Yes Yes 1-7 SPECIFICATIONS GENERAL Power requirements AC 200-240V, 50/60 Hz Power consumption 35W Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without foot Mass (approx.) 4.1 kg Operating temperatur

48、e 5C to 35C Operating humidity 5 % to 90 % Television system PAL I, B/G, I/I, SECAM D/K, K1 color system Recording format PAL RECORDING Recording format DVD Video Recording, DVD-VIDEO Recordable media HDD (80GB), DVD-ReWritable, DVD-Recordable, DVD+ReWritable, DVD+Recordable, DVD+Recordable (Double Layer) Recordable time DVD (4.7GB): Approx. 1 hour (XP mode), 2 hours (SP mode), 4 hours (LP mode), 6 hours (EP mode) DVD+R DL (8.5GB): Approx. 3 hour (XP mode), 3 hours 40 minutes (