LG-HB954TBAD-cs-sm 维修电路原理图.pdf

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1、5.1Ch Blu-ray Receiver SystemSERVICE MANUALCAUTIONBEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”IN THIS MANUAL.Website http:/Internal Use OnlyP/NO : AFN73178944JUNE, 2009MODEL : HB954TB(HB954TB-AD / SB94TB-C/F/S/W)MODEL : HB954TB (HB954TB-AD / SB94TB-C/F/S/W)SERVICE MANUALRadioFans.CN 收音机爱

2、 好者资料库 1-1CONTENTSSECTION 1 .SUMMARYSECTION 2 .ELECTRICALSECTION 3 .CABINET & MAIN CHASSISSECTION 4 .HL-04P LOADER PARTSECTION 5 .REPLACEMENT PARTS LISTRadioFans.CN 收音机爱 好者资料库 1-2SECTION 1SUMMARYCONTENTSPRODUCT SAFETY SERVICING GUIDELINES FOR BLU-RAY DISC PLAYER PRODUCTS . 1-3SERVICING PRECAUTIONS .

3、 1-4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTATICALLY SENSITIVE (ES) DEVICESSERVICE INFORMATION FOR EEPROM . 1-51. DVD PART2. MICOM PARTSOFTWARE UPGRADE . 1-7SPECIFICATIONS . 1-8 1-3PRODUCT SAFETY SERVICING GUIDELINESFOR BLU-RAY DISC PLAYER PRODUCTSIMPORTANT SAFETY NOTIC

4、EThis manual was prepared for use only by properly trained audio-video service technicians.When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Corporation. All components should be replaced only with types identical to thos

5、e in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.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 des-igna

6、tors and are required to maintain safe performance. No deviations are allowed without prior approval by LG 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

7、until the new service literature is printed.CAUTION : Do not attempt to modify this product in any way. Never perform cus-tomized installations without manufacturers approval. Unauthorized modifications will not only void the warranty, but may lead to property damage or user injury.Service work shou

8、ld be performed only after you are thoroughly familiar with these safety checks and servicing guidelines.GRAPHIC SYMBOLSThe 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 a

9、rrowhead symbol within an equilateral triangle is intended to alert the service 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 triang

10、le is intended to convey to the service 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 INFORMATIONWhile servicing, use an isolation transformer for prote

11、ction from AC line shock. After the original service problem has been corrected, make a check of the following:FIRE AND SHOCK HAZARD1. 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 re

12、pair shop.2. Verify that all protective 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 i

13、nspected to discover possible cold 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

14、 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 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 se

15、lector knobs, antenna terminals, handle and screws) to be sure that set is safe to operate without danger of electrical shock. DO NOT 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 w

16、att resistor, paralleled by a .15 mfd 150V AC type capacitor between a known good earth ground water pipe, conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC volt-age across the combination of 1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug by using a non-polar

17、ized adaptor and repeat AC voltage measure-ments 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 constitutes a potential shock hazard and must be corrected immediately.TIPS ON PROPER INSTALLATION1. N

18、ever install any receiver 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

19、 factor, etc. 3. Avoid 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 in

20、structions. A product 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 instal-lations.5. Cau

21、tion customers against mounting a product on a sloping shelf or in a tilted 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 casters across thresho

22、lds or deep pile carpets.7. Caution customers against using extension cords. Explain that a forest of exten-sions, sprouting from a single outlet, can lead to disastrous consequences to home and family. 1-4SERVICING PRECAUTIONSCAUTION: Before servicing the BLU-RAY DISC PLAYER cov-ered by this servic

23、e data and its supplements and addends, read and follow the SAFETY PRECAUTIONS. NOTE: if unforeseen circumstances create conflict between the follow-ing servicing precautions and any of the safety precautions in this publications, always follow the safety precautions.Remember Safety First :General S

24、ervicing Precautions1. Always unplug the BLU-RAY DISC PLAYER AC power cord from the AC power source before: (1) Removing or reinstalling any component, circuit board, module, or any other assembly. (2) Disconnecting or reconnecting any internal electrical plug or other electrical connection. (3) Con

25、necting a test substitute in parallel with an electro-lytic capacitor. Caution : A wrong part substitution or incorrect polar-ity installation 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

26、 specified otherwise in this service data, clean elec-trical contacts by applying an appropriate contact cleaning solution 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.

27、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 BLU-RAY DISC PLAYER and / or any of its electrical assemblies unless all solidstate device heat sinks are correctly installed.6. Always con

28、nect the test instrument ground lead to an appropriate ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last.Insulation Checking ProcedureDisconnect the attachment plug from the AC outlet and turn the power on. Connect an insulation resistance

29、 meter (500V)to the blades of the attachment plug. The insulation resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1Mohm.Note 1 : Accessible Conductive Parts include Metal panels, Input terminals, Earphone jacks,etc.Electrostatically S

30、ensitive (ES) DevicesSome semiconductor (solid state) devices can be damaged easily by static electricity. 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 com

31、ponents.The following techniques should be used to help reduce the incidence of component damage caused 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 grou

32、nd. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should 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

33、 such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.3. Use only a grounded-tip soldering iron 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

34、 charges sufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate an electrical charge sufficient 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 de

35、vices are packaged with leads electrically shorted together by conductive foam, aluminum foil,or 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 whi

36、ch the device will be installed. Caution: Be sure no power is applied to the chassis or cir-cuit, 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

37、 lifting of your foot from a carpeted floor can generate static elec-tricity sufficient to damage an ES device.) 1-5SERVICE INFORMATION FOR EEPROMPOWER ONPress number 09, Press characterAF (16 for a while)Press pause key onceChange will be appliedwhen powerOFF-ON.Use arrow key ( ) tomove to appropri

38、ate position andmake changesFLD “NO DISK” or “OPEN” status.Remote controlPause key-1-4-7-2 in order.DETECT NEW EEPROM (OPTION EDIT SCREEN)1. DVD PARTEEPROM Edit TableUp/Down key : Change the EEPROM dataLeft/Righr key : Move the CursorPAUSE key : Store the changed data and Exit the EEPROM Edit Table*

39、APPLICABLE MODELS : HB954TB-AD.BINDLLK (LGEIL) HB954TB-AD.BMYSLLB (LGEML)52 55 06 A6 00 05 2C 4055 53 00 CA 00 05 2C 40 1-6POWER ONAuto power offFLD OP-0.Press ENTER key onceRemote control 2 + Front STOPpush same timingFLD write ok or up okFLD display E2P CLR or EP CLRUse arrow key ( ) tomove to app

40、ropriate position andmake changesFLD no disc statusRemote control 2 + Front STOPpush same timing during 5sDETECT NEW EEPROM(OPTION EDIT SCREEN)2. MICOM PARTNAME HEXOP-009OP-17AOP-210OP-3C3OP-4 00 1-71. Copy D/L program to USB Memory. - file name : Backend program = LG_-.ROM ex) LG_HB_LV421BP.ROM MIC

41、OM program = MICOM_-.HEX ex) MICOM_HB954.HEX / MICOM_HB354.HEX TOUCH program = TOUCH_-.HEX ex) TOUCH_HB954.HEX / TOUCH_HB354.HEX DSP program = DSP_-.HEX ex) DSP_HB954.HEX / DSP_HB354.HEX2. Insert USB Memory. (at No disc status) - If USB indicate normally, screen display pop up. (Pop up message is “D

42、o you want to update?”)3. Press “ENTER” key. - Program D/L start. - Screen display popup message (“Updating.”). - VFD display order Backend program : 0 EXTRACT - _PREPARE - 0_INSTALL - VERIFY- FINALIZE - UPDATE DONE -POWEROFF (download time : 2m 30s) MICOM program : M-UPDATE (download time : 40s50s)

43、 TOUCH program : T-UPDATE (download time : 20s30s) DSP program : D-UPDATE (download time : 13m)4. SET auto power off. SOFTWARE UPGRADE 1-8SPECIFICATIONS GENERALPower requirements: Refer to main label .Power consumption: 130WDimensions (W x H x D): Approx. 430 x 76 x 379mm without footNet Weight (App

44、rox.): 4.8kgOperating temperature: 41F to 95F (5C to 35C)Operating humidity: 5% to 90% INPUTS/OUTPUTSVIDEO OUT: 1.0V (p-p), 75, sync negative, RCA jack x 1COMPONENT VIDEO OUT: (Y) 1.0V (p-p), 75, sync negative, RCA jack x 1 (Pb)/(Pr) 0.7V (p-p), 75, RCA jack x 2HDMI OUT (video/audio): 19 pin (HDMI s

45、tandard, Type A)HDMI IN (video/audio): 19 pin (HDMI standard, Type A)ANALOG AUDIO IN: 2.0Vrms (1kHz, 0dB), 600, RCA jack (L, R) x 1DIGITAL IN (COAXIAL): 0.5V (p-p), 75, RCA jack x 1DIGITAL IN (OPTICAL): 3V (p-p), Optical jack x 1PORT. IN: 0.5Vrms (3.5 stereo jack) FM Tuning Range: 87.5 108.0MHz AMPL

46、IFIERStereo mode: 155W + 155W (4 at 1kHz, THD 10%)Surround mode: Left+Right: 155W + 155W (THD 10%) Center: 155W Surround: 155W + 155W (4 at 1kHz, THD 10%) Subwoofer: 225W (3 at 30Hz, THD 10%) SYSTEMLaser: Semiconductor laser, wavelength: 405nm / 650nmSignal system: Standard PAL/NTSC color TV systemF

47、requency response: 20Hz to 20kHz (48kHz, 96kHz, 192kHz sampling)Signal-to-noise ratio: More than 100dB (ANALOG OUT connectors only)Harmonic distortion: Less than 0.008%Dynamic range: More than 95dBLAN port: Ethernet jack x 1, 10BASE-T/100BASE-TX SPEAKERS Front Speaker Rear Speaker Center Speaker Pas

48、sive SubwooferSB94TB-FSB94TB-WType2 Way 3 speaker2 Way 2 speaker2 Way 3 speaker1 Way 1 speakerImpedance4443Rated Input Power155W155W155W225WMax. Input power310W310W310W450WNet Dimensions330 x 1265 x 300mm 330 x 1265 x 300mm(W x H x D)Net Weight5.0kg4.7kg1.0kg7.3kgSB94TB-SSB94TB-C350 x 105 x 88mm216

49、x 405 x 360mm TUNER FM/AM :egnaR gn i nuT MA520 1.710kHz 2-1SECTION 2ELECTRICALCONTENTSTRAINING MASTER FOR BLU-RAY (BD) . 2-21. DISTORTED PICTURE . 2-22. NO PICTURE . 2-73. PICTURE COLOR . 2-124. NOISE/AUDIO PROBLEMS . 2-145. MISCELLANEOUS . 2-176. BLU-RAY PLAYER . 2-267. YouTube . 2-28ELECTRICAL TR

50、OUBLESHOOTING GUIDE . 2-301. SMPS PART CHECK . 2-302. AMP PROTECTION . 2-313. POWER KEY OPERATION . 2-324. FRONT BLOCK . 2-335. TOUCH KEY BLOCK . 2-346. NO AUDIO CHECK . 2-357. NO VIDEO CHECK . 2-378. HDMI NO AUDIO/VIDEO CHECK (with HDMI IN) . 2-399. HDMI NO AUDIO/VIDEO CHECK (without HDMI IN) . 2-4