LG-HB954TBAD-cs-sm 电路图 维修手册.pdf

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1、5.1Ch Blu-ray Receiver System SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. Website Internal Use Only P/NO : AFN73178944JUNE, 2009 MODEL : HB954TB (HB954TB-AD / SB94TB-C/F/S/W) MODEL : HB954TB (HB954TB-AD / SB94TB-C/F/S/W)SERVICE MANUAL RadioFans.CN

2、收音机爱 好者资料库 1-1 CONTENTS SECTION 1 .SUMMARY SECTION 2 .ELECTRICAL SECTION 3 .CABINET & MAIN CHASSIS SECTION 4 .HL-04P LOADER PART SECTION 5 .REPLACEMENT PARTS LIST RadioFans.CN 收音机爱 好者资料库 1-2 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR BLU-RAY DISC PLAYER PRODUCTS . 1-3 SERVICI

3、NG PRECAUTIONS . 1-4 GENERAL SERVICING PRECAUTIONS INSULATION CHECKING PRODEDURE ELECTROSTATICALLY SENSITIVE (ES) DEVICES SERVICE INFORMATION FOR EEPROM . 1-5 1. DVD PART 2. MICOM PART SOFTWARE UPGRADE . 1-7 SPECIFICATIONS . 1-8 RadioFans.CN 收音机爱 好者资料库 1-3 PRODUCT SAFETY SERVICING GUIDELINES FOR BLU

4、-RAY DISC PLAYER PRODUCTS IMPORTANT SAFETY NOTICE This 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 sh

5、ould 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. Special components are also used to prevent x-radiation, shock and fire hazard. These components are indicated by

6、 the letter “x” included in their component des- ignators 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 perfor

7、mance 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 installations without manufacturers approval. Unauthorized modifications will not only void the warranty, but may

8、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 SYMBOLS The exclamation point within an equilateral triangle is intended to alert the service personnel to important safety infor

9、mation in the service literature. The lightning flash with arrowhead 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 represen

10、tation of a fuse and its rating within an equi- lateral triangle 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 IN

11、FORMATION While 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 HAZARD 1. Be sure that all components are positioned to avoid a possibility of adjacent component shorts. Th

12、is 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, and other hardware have been reinstalled per the original design. Be sure that the safety purpose of

13、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- ticles. 4. Check for physical evidence of damage or deterioration to parts and compo- nents, for

14、 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 protruding metal surfaces must be avoided. 6. After reassembly of the set, always perform an AC

15、 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 electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS TEST. Use an AC voltmeter having 5000 ohms per

16、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 exposed metallic parts, one at a time. Measure the AC volt- age across the combination of 1500 o

17、hm resistor and .15 mfd capacitor. Reverse the AC plug by using a non-polarized 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 sh

18、ock hazard and must be corrected immediately. TIPS ON PROPER INSTALLATION 1. 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 path of heated air flow. 2. Avoid conditions of high humidity such as: outdoor patio inst

19、allations 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 or other coverings that might obstruct ventilation. 4. Wall- and shelf-mounted installatio

20、ns using a commercial mounting kit must follow 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 provide adequate air flow across the bottom. Bolts or screws used for fasteners must not touch

21、 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 product on a roll-about cart should be stable in its mounting to the cart. Caution the

22、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 single outlet, can lead to disastrous consequences to home and family. 1-4 SERVICING

23、 PRECAUTIONS CAUTION: Before servicing the BLU-RAY DISC PLAYER cov- ered by this service 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

24、this publications, always follow the safety precautions. Remember Safety First : General Servicing Precautions 1. 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) Disconn

25、ecting 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 polar- ity installation of electrolytic capacitors may result in an explosion hazard. 2.

26、 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 contacts with a pipe cleaner, cotton-tipped swab, or comparable soft appli

27、cator. 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 BLU-RAY DISC PLAYER and / or any of its e

28、lectrical 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 test instrument ground lead last. Insulation Checking Procedure Disc

29、onnect 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 resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1Mohm. Note 1 : Ac

30、cessible Conductive Parts include Metal panels, 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 Electrostatically Sensitive (ES) Devices. Examples o

31、f 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 handling any semiconductor compo- nent or sem

32、iconductor-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 shock reasons prior to applying power to the unit under test.

33、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 iron to solder or unsolder ES devices. 4. Use only an anti-st

34、atic 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 sufficient to damage ES devices. 6. Do not remove a replacement ES

35、 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. Immediately before removing the protective material fr

36、om 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 precautions. 8. Minimize bodily motions when handling unpa

37、ckaged 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.) 1-5 SERVICE INFORMATION FOR EEPROM POWER ON Press number 09, Press cha

38、racter AF (16 for a while) Press pause key once Change will be applied when power OFF-ON. Use arrow key ( ) to move to appropriate position and make changes FLD “NO DISK” or “OPEN” status. Remote control Pause key-1-4-7-2 in order. DETECT NEW EEPROM (OPTION EDIT SCREEN) 1. DVD PART EEPROM Edit Table

39、 Up/Down key : Change the EEPROM data Left/Righr key : Move the Cursor PAUSE key : Store the changed data and Exit the EEPROM Edit Table *APPLICABLE MODELS : HB954TB-AD.BINDLLK (LGEIL) HB954TB-AD.BMYSLLB (LGEML) 52 55 06 A6 00 05 2C 40 55 53 00 CA 00 05 2C 40 1-6 POWER ON Auto power off FLD OP-0. Pr

40、ess ENTER key once Remote control 2 + Front STOP push same timing FLD write ok or up ok FLD display E2P CLR or EP CLR Use arrow key ( ) to move to appropriate position and make changes FLD no disc status Remote control 2 + Front STOP push same timing during 5s DETECT NEW EEPROM (OPTION EDIT SCREEN)

41、2. MICOM PART NAME HEX OP-009 OP-17A OP-210 OP-3C3 OP-4 00 1-7 1. Copy D/L program to USB Memory. - file name : Backend program = LG_-.ROM ex) LG_HB_LV421BP.ROM MICOM program = MICOM_-.HEX ex) MICOM_HB954.HEX / MICOM_HB354.HEX TOUCH program = TOUCH_-.HEX ex) TOUCH_HB954.HEX / TOUCH_HB354.HEX DSP pro

42、gram = DSP_-.HEX ex) DSP_HB954.HEX / DSP_HB354.HEX 2. Insert USB Memory. (at No disc status) - If USB indicate normally, screen display pop up. (Pop up message is “Do you want to update?”) 3. Press “ENTER” key. - Program D/L start. - Screen display popup message (“Updating.”). - VFD display order Ba

43、ckend program : 0 EXTRACT - _PREPARE - 0_INSTALL - VERIFY- FINALIZE - UPDATE DONE -POWEROFF (download time : 2m 30s) MICOM program : M-UPDATE (download time : 40s50s) TOUCH program : T-UPDATE (download time : 20s30s) DSP program : D-UPDATE (download time : 13m) 4. SET auto power off. SOFTWARE UPGRAD

44、E 1-8 SPECIFICATIONS GENERAL Power requirements: Refer to main label . Power consumption: 130W Dimensions (W x H x D): Approx. 430 x 76 x 379mm without foot Net Weight (Approx.): 4.8kg Operating temperature: 41F to 95F (5C to 35C) Operating humidity: 5% to 90% INPUTS/OUTPUTS VIDEO OUT: 1.0V (p-p), 7

45、5, sync negative, RCA jack x 1 COMPONENT VIDEO OUT: (Y) 1.0V (p-p), 75, sync negative, RCA jack x 1 (Pb)/(Pr) 0.7V (p-p), 75, RCA jack x 2 HDMI OUT (video/audio): 19 pin (HDMI standard, Type A) HDMI IN (video/audio): 19 pin (HDMI standard, Type A) ANALOG AUDIO IN: 2.0Vrms (1kHz, 0dB), 600, RCA jack

46、(L, R) x 1 DIGITAL IN (COAXIAL): 0.5V (p-p), 75, RCA jack x 1 DIGITAL IN (OPTICAL): 3V (p-p), Optical jack x 1 PORT. IN: 0.5Vrms (3.5 stereo jack) FM Tuning Range: 87.5 108.0MHz AMPLIFIER Stereo mode: 155W + 155W (4 at 1kHz, THD 10%) Surround mode: Left+Right: 155W + 155W (THD 10%) Center: 155W Surr

47、ound: 155W + 155W (4 at 1kHz, THD 10%) Subwoofer: 225W (3 at 30Hz, THD 10%) SYSTEM Laser: Semiconductor laser, wavelength: 405nm / 650nm Signal system: Standard PAL/NTSC color TV system Frequency 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 95dB LAN port: Ethernet jack x 1, 10BASE-T/100BASE-TX SPEAKERS Front Speaker Rear Speaker Center Speaker Passive Subwoofer SB94TB-FSB94TB-W Type2 Way 3 speaker2 Way 2 speaker2 Way 3 speaker1 Way 1 speaker Impedance