LG-BD390-br-sm 维修电路原理图.pdf

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1、BLU-RAY DISC PLAYERSERVICE MANUALMODEL: BD390CAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”IN THIS MANUAL.MODEL: BD390SERVICE MANUALP/NO : AFN73271528 OCTOBER, 2009Website http:/Internal Use OnlyRadioFans.CN 收音机爱 好者资料库CONTENTSSECTION 1 .SUMMARYSECTION 2 .CABINET & MAIN CHASSISSECTIO

2、N 3 .ELECTRICALSECTION 4 .HL-05P LOADER PARTSECTION 5 .REPLACEMENT PARTS LIST 1-1RadioFans.CN 收音机爱 好者资料库SECTION 1SUMMARYCONTENTSPRODUCT SAFETY SERVICING GUIDELINES FORBLU-RAY DISC PLAYER PRODUCTS . 1-3SERVICING PRECAUTIONS . 1-4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTAT

3、ICALLY SENSITIVE (ES) DEVICESSOFTWARE UPGRADE . 1-5SPECIFICATIONS . 1-6 1-2PRODUCT SAFETY SERVICING GUIDELINESFOR BLU-RAY DISC PLAYER PRODUCTSIMPORTANT SAFETY NOTICEThis manual was prepared for use only by properly trained audio-video service technicians.When servicing this product, under no circums

4、tances should the original design be modified or altered without permission from LG 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 original layout upon completion of repairs.

5、Special components are also used to prevent x-radiation, shock and fire hazard.These components are indicated by the letter “x” included in their component desig-nators and are required to maintain safe performance. No deviations are allowed without prior approval by LG Corporation.Circuit diagrams

6、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 this product in any way. Never perform cus-tomized instal

7、lations without manufacturers approval. Unauthorized modifications 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 checks and servicing guidelines.GRAPHIC SYMBOLSThe exclamation

8、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 trian-gle is intended to alert the service personnel to the presence of non-insulated “dangerous v

9、oltage” that may be of sufficient magnitude to constitute a risk of electric shock.The pictorial representation of a fuse and its rating within an equilat-eral triangle is intended to convey to the service personnel the follow-ing fuse replacement caution notice:CAUTION : FOR CONTINUED PROTECTION AG

10、AINST RISK OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND RATING AS MARKED NEAR EACH FUSE.SERVICE INFORMATIONWhile servicing, use an isolation transformer for protection from AC line shock. After the original service problem has been corrected, make a check of the following:FIRE AND SHOCK HAZARD1

11、. 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 insulators, barriers, covers, shields, strain reliefs, power supply cords, an

12、d 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 splashes, or sharp solder points. Be certain to remove all loose foreign par

13、ti-cles.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 current device or a resistor rated at 1 watt or more. Lead tension around p

14、rotruding 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 sure that set is safe to operate without danger of elec-trical shock. DO NO

15、T USE A LINE ISOLATION TRANSFORMER 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 capacitor between a known good earth ground water pipe, conduit, etc.) and the ex

16、posed metallic 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 exposed metallic part. Voltage measured must not exceed 0.75 volts RMS. This

17、 corresponds to 0.5 milliamp AC. Any value exceed-ing this limit constitutes a potential shock hazard and must be corrected immedi-ately.TIPS ON PROPER INSTALLATION1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf space over, or close to, a heat duct, or in the

18、 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 obstruct venting. The customer should also avoid the use of decorative scarves

19、or other coverings that might obstruct ventilation.4. Wall- and shelf-mounted installations using a commercial mounting kit must fol-low the factory-approved mounting instructions. A product mounted to a shelf or platform must retain its original feet (or the equivalent thickness in spacers) to prov

20、ide adequate air flow across the bottom. Bolts or screws used for fasteners must not touch any parts or wiring. Perform leakage tests on customized instal-lations.5. Caution customers against mounting a product on a sloping shelf or in a tilted position, unless the receiver is properly secured.6. A

21、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 casters across thresholds or deep pile carpets.7. Caution customers against using extension cords. Explain that a forest of exten-sions, sprouting from a

22、 single outlet, can lead to disastrous consequences to home and family. 1-3SERVICING PRECAUTIONSCAUTION: Before servicing the BLU-RAY DISC PLAYER covered by this service data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE: if unforeseen circumstances create conflict be

23、tween the following servicing precautions and any of the safety pre-cautions in this publications, always follow the safety precau-tions.Remember Safety First :General Servicing Precautions1. Always unplug the BLU-RAY DISC PLAYER AC power cord from the AC power source before: (1) Removing or reinsta

24、lling any component, circuit board, module, or any other assembly. (2) Disconnecting or reconnecting any internal electrical plug or other electrical connection. (3) Connecting a test substitute in parallel with an electro-lytic capacitor. Caution : A wrong part substitution or incorrect polarity in

25、stallation of electrolytic capacitors may result in an explosion hazard.2. Do not spray chemicals on or near this BLU-RAY DISC PLAYER or any of its assemblies.3. Unless specified otherwise in this service data, clean elec-trical contacts by applying an appropriate contact cleaning solution to the co

26、ntacts 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 be equipped.5. D

27、o not apply AC power to this BLU-RAY DISC PLAYER and / or any of its electrical assemblies unless all solidstate device heat sinks are correctly installed.6. Always connect the test instrument ground lead to an appropriate ground before connecting the test instrument positive lead. Always remove the

28、 test instrument ground lead last.Insulation Checking ProcedureDisconnect 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 resist-ance between each blade of the attachment plug and acces-si

29、ble conductive parts (Note 1) should be more than 1Mohm.Note 1 : Accessible Conductive Parts include Metal panels, Input terminals, Earphone jacks,etc.Electrostatically Sensitive (ES) DevicesSome semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonl

30、y 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 by static electricity.1. I

31、mmediately 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 commercially available discharging wrist strap device, which should be removed for potential

32、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. Use only a grounded-tip soldering i

33、ron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate an electrical charge sufficie

34、nt to damage ES devices.6. Do not remove a replacement ES device from its protective 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

35、. 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 cir-cuit, and observe all other safety pre

36、cautions.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 damage an ES device.) 1-4 Burn a DVD re

37、cordable disc or USB with a file that is named to “LG_BD_390VBB.ROM”. Insert a upgrading disc or USB. Show help message for disc upgrade as follows. Press play key to upgrade and it will show progress informationAfter completing upgrade then power is off.SOFTWARE UPGRADE 1-5SPECIFICATIONS GENERALPow

38、er requirements: AC 200-240V, 50/60HzPower consumption: 21WDimensions (W x H x D): Approx. 16.9 x 2.3 x 10.9 inches (430 x 58 x 277mm) without feetWeight (Approx.): 3kg (6.6lbs)Operating temperature: 41F to 95F (5C to 35C)Operating humidity: 5% to 90% OUTPUTSVIDEO OUT: 1.0V (p-p), 75, sync negative,

39、 RCA jack x 1COMPONENT VIDEO OUT: (Y) 1.0V (p-p), 75,negative sync, RCA jack x 1 (Pb)/(Pr) 0.7V (p-p), 75, RCA jack x 2HDMI OUT (video/audio): 19pin (HDMI standard, Type A)ANALOG AUDIO OUT: 2.0Vrms (1kHz, 0dB), 600, RCA jack (L, R) x 1DIGITAL OUT (OPTICAL): 3V (p-p), Optical jack x 1DIGITAL OUT (COA

40、XIAL): 0.5V (p-p), 75, RCA jack x 1MULTI CHANNEL OUT: 2.0Vrms (1kHz, 0dB), 600, RCA jack x 8 SYSTEMLaser: Semiconductor laser, wavelength: 405nm / 650nmSignal system: Standard NTSC Color TV systemFrequency response: 20Hz to 20kHzSignal-to-noise ratio: More than 100dB (ANALOG OUT connectors only)Harm

41、onic distortion: Less than 0.008%Dynamic range: More than 95dBLAN port: Ethernet jack x 1, 10BASE-T/100BASE-TXNote : Design and specifications are subject to change prior notice. 1-6SECTION 2CABINET & MAIN CHASSISCONTENTSDISASSEMBLY INSTRUCTIONS . 2-2EXPLODED VIEWS . 2-31. CABINET AND MAIN FRAME SEC

42、TION . 2-32. DECK MECHANISM SECTION (HL-05P) . 2-43. PACKING ACCESSORY SECTION . 2-5 2-1DISASSEMBLY INSTRUCTIONS1. It is the product appearance.2. Remove the three screws on the back panel to seperate the top cover.3. Push the top cover backward to seperate the top cover completely.4. Remove the sev

43、en front panel hooks (two hooks on the top, two hooks on the both side and three hooks on the bottom) to seperate the front panel.5. It is the feature that the top and front panel are seperated. 2-2SVC purchase order cautionKey board is array coming timer board.Purchase order board separately supply

44、 incomprehensible.Supply is possible in Location No. A50 state in exploded views.462250468CABLE3CABLE6BCABLE5CA43A50A51A43A287468468A47SMPSBOARD260261261261A261261B261AMAINBOARD 7.1CHJACK BOARDBCA468468468468A44470465320465465283284284285ACABLE1452452275278275CABLE2A46EXPLODED VIEWS1. CABINET AND MA

45、IN FRAME SECTION 2-3CABLE4300A48261B2612. DECK MECHANISM SECTION (HL-05P)14371025143910471048104110111030A00214311002A001100110031026101310171433101610151012102010201046CABLE3A52LOADERBOARDCABLE41049A60OPTIONAL PARTRefer to “HOW T O USE THE BAR-CODE SCAN TOOL”(Page4-11 4-13) after replacing A002, A5

46、2 and 1049.Service Notice1019101810431045A005 2-42-5Copyright 2008 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only3. PACKING ACCESSORY SECTION808 Battery811 Plug Assy 1way812 Plug Assy 2way804 Bag803 Packing900 Remote Control801 Instruction Assy803

47、 Packing802 BoxDISK832MEMO 2-6SECTION 3ELECTRICALCONTENTSTRAINING MASTER FOR BLU-RAY (BD) . 3-21. DISTORTED PICTURE . 3-22. NO PICTURE . 3-73. PICTURE COLOR . 3-124. NOISE/AUDIO PROBLEMS . 3-145. MISCELLANEOUS . 3-176. BLU-RAY PLAYER (BD390) . 3-267. NETFLIX . 3-288. YouTube . 3-329. CINEMANOW . 3-3

48、3ELECTRICAL TROUBLESHOOTING GUIDE . 3-381. POWER SUPPLY (SMPS) . 3-382. POWER ON . 3-403. SYSTEM PART . 3-414. COMPONENT (YPbPr) VIDEO OUT . 3-425. CVBS VIDEO OUT . 3-436. AUDIO (S/PDIF, OPTICAL) . 3-447. AUDIO (ANALOG) . 3-458. HDMI . 3-46COMPONENT REPAIR GUIDE .3-47WAVEFORMS . 3-621. SYSTEM PART-1

49、 . 3-622. SYSTEM PART-2 (SYSTEM MEMORY) .3-633. VIDEO PART-1 (100% FULL COLOR-BAR) . 3-644. VIDEO PART-2 (100% FULL COLOR-BAR) . 3-655. AUDIO PART (S/PDIF) . 3-666. HDMI PART . 3-677. FRONT I/F PART . 3-68BLOCK DIAGRAMS . 3-691. OVERALL BLOCK DIAGRAM . 3-692. SMPS BLOCK DIAGRAM . 3-703. SYSTEM STRUC

50、TURE BLOCK DIAGRAM . 3-714. FRONT PART BLOCK DIAGRAM . 3-725. 2CH AUDIO INTERFACE BLOCK DIAGRAM . 3-736. 7.1CH AUDIO INTERFACE BLOCK DIAGRAM . 3-747. VIDEO INTERNAL BLOCK DIAGRAM . 3-758. Wi-Fi BLOCK DIAGRAM . 3-76CIRCUIT DIAGRAMS . 3-771. SMPS (POWER) CIRCUIT DIAGRAM . 3-772. BCM7602-2 CIRCUIT DIAG