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LG FB165DAB Service Manual

Dvd micro hi-fi system
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Internal Use Only
Website http://biz.lgservice.com
DVD Micro Hi-Fi System
SERVICE MANUAL
MODEL: FB165DAB
(FB165DAB, FBS166V)
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN75496302
APRIL, 2011

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  • Page 1 Internal Use Only Website http://biz.lgservice.com DVD Micro Hi-Fi System SERVICE MANUAL MODEL: FB165DAB (FB165DAB, FBS166V) CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : AFN75496302 APRIL, 2011...
  • Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..REPLACEMENT PARTS LIST...

  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS SERVICING PRECAUTIONS ........................1-3 ESD PRECAUTIONS ..........................1-5 FIRMWARE UPGRADE ..........................1-6 1. MPEG 2. AUDIO MICOM 3. BLUETOOTH 4. TOUCH EEPROM OPTION SETTING ........................1-7 SYSTEM RESET ............................1-7 SPECIFICATIONS ............................1-8...

  • Page 4: Servicing Precautions

    SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage 1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact. Storage in conductive bag Drop impact 2.
  • Page 5 NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations 1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care.

  • Page 6: Esd Precautions

    ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD 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.

  • Page 7: Firmware Upgrade

    FIRMWARE UPGRADE 1. MPEG 1) Copy rmware to USB (Do not change le name). Ex) LG_FB166LD1_1011290.rom 2) Change function to DVD/CD by pressing input key, and wait until home menu is shown. 3) Inset USB device which includes rmware. 4) Firmware is detected automatically and then, shows blue screen in TV. If home menu is maintained after inserting USB, press music Icon.

  • Page 8: Eeprom Option Setting

    EEPROM OPTION SETTING 1) Change function to DVD/CD by pressing input key, and wait until home menu is shown. - Do not insert disc or USB at the set. 2) Press "PAUSE 1 4 7 2" in order. 3) and then, option setting menu is displayed. You can see 10 bytes option value.

  • Page 9: Specifications

    SPECIFICATIONS • GENERAL Power requirements 200 - 240 V ~ 50/ 60 Hz Power consumption 55 W Dimensions (W x H x D) 135 x 285 x 280.5 mm without foot Net Weight (Approx.) 2.8 kg Operating temperature 41 °F to 95 °F (5 °C to 35 °C) Operating humidity 5 % to 90 % •...
  • Page 10 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ............................. 2-1 1. CABINET AND MAIN FRAME SECTION (FB165DAB) ................2-3 2. DECK MECHANISM SECTION (SDP-08) ....................2-5 3. PACKING ACCESSORY SECTION ......................2-7 4. SPEAKER SECTION (FBS166V) ......................2-8...
  • Page 11 MEMO...
  • Page 14 3. PACKING ACCESSORY SECTION 801 Owner’s Manual 811 RCA 1Pin (Video) 808 Battery 825C DAB Antenna 825 FM Wire Antenna 900 Remote Control 803 Packing 804 Bag 802 Box...
  • Page 15 4. SPEAKER SECTION (FBS166V) A60L A60R...
  • Page 16 SECTION 3 ELECTRICAL CONTENTS DIGITAL DISPLAY & MEDIA TRAINING MASTER ..................3-2 1. DISTORTED PICTURE ........................... 3-2 2. NO PICTURE ............................3-7 3. PICTURE COLOR ..........................3-12 4. NOISE/AUDIO PROBLEMS ........................3-14 5. MISCELLANEOUS ..........................3-17 ONE POINT REPAIR GUIDE .......................... 3-26 1.

  • Page 17: Digital Display & Media Training Master

    DIGITAL DISPLAY & MEDIA TRAINING MASTER Objective: To provide clear and concise guidelines for customer service agents to handle calls on box goods calls. 1. DISTORTED PICTURE 1-1. Lines on Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using What cables is to connect the DVD to the TV and if connected properly.
  • Page 18 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-2. Ghost Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. What cables is the customer Refer to OM for connections.
  • Page 19 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-3. Rolling Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. What cables is the customer Refer to OM for connections.
  • Page 20 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-4. Shaky Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. What cables is the customer Refer to OM for connections.
  • Page 21 DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-5. Blurry Picture Distorted picture refers to the customer getting video, but there is a problem with the video. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. What cables is the customer Refer to OM for connections.

  • Page 22: Picture

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 2. NO PICTURE 2-1. Black Screen The entire screen is black. Make sure the customer did not select 480I resolution in the menu Does the DVD on-screen of the MICRO System if using HDMI connections. Change resolution on menu appear? upconversion MICRO System by pushing the resolution button of the remote controller.
  • Page 23 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-2. Blue Screen The entire screen is a solid blue color. Make sure the customer did not select 480I resolution in the menu Does the DVD on-screen of the MICRO System if using HDMI connections. Change resolution on menu appear? upconversion MICRO System by pushing the resolution button of the remote controller.
  • Page 24 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-3. Snowy Screen A snowy picture is when black and white dots are all over the screen. Make sure the customer did not select 480I resolution in the menu Does the DVD on-screen of the MICRO System if using HDMI connections. Change resolution on menu appear? upconversion MICRO System by pushing the resolution button of the remote controller.
  • Page 25 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-4. No Signal A “no signal” message appears on the screen of the display. Make sure the customer did not select 480I resolution in the menu Does the DVD on-screen of the MICRO System if using HDMI connections. Change resolution on menu appear? upconversion MICRO System by pushing the resolution button of the remote controller.
  • Page 26 DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-5. Invalid Format or Format Not Supported Customer’s using an DVI, or HDMI cable connection need to set Is the customer using a the resolution on the product above 480I. HDMI, digital cable connection? DVI connections can not process a 480I resolution.

  • Page 27: Picture Color

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 3. PICTURE COLOR 3-1. No Color The video displays no color and only shows in black and white. Determine what cables the customer is using to connect the DVD What cables is the customer to the TV and if connected properly.
  • Page 28 DIGITAL DISPLAY & MEDIA TRAINING MASTER 3-2. Poor Color The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to a screen. Determine what cables the customer is using to connect the DVD to What cables is the customer the TV and if connected properly.

  • Page 29: Noise/Audio Problems

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 4. NOISE/AUDIO PROBLEMS 4-1. No Audio The customer is not able to get audio. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 30 DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-2. Distorted Audio The audio sounds muffled, scratchy, or the audio skips. Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. What cables is the customer Tighten any loose cables.
  • Page 31 DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-3. Humming/Clicking Noise The unit is making a humming noise or a clicking noise. DVDs make a slight hum when playing discs. Does the noise only A clicking noise or a noise interfering with audio may indicate a problem. happen when a disc Try multiple discs.

  • Page 32: Miscellaneous

    DIGITAL DISPLAY & MEDIA TRAINING MASTER 5. MISCELLANEOUS 5-1. No Power The unit will not turn on. Is the unit plugged in? Make sure the unit is plugged into a surge protector or the wall. Does the unit turn on See if the unit will turn on when the power button the unit is pressed.
  • Page 33 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-2. Disc Error The unit displays “disc error” when a disc is inserted into the MICRO System. Is the disc inserted into Make sure the disc has been inserted into the MICRO System properly. the MICRO System properly? The HTS can not read a disc inserted into the unit upside down.
  • Page 34 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-3. Unit Locks Up Unit does not respond to any commands. If the unit will turn on or off with the button on the unit, Does the unit respond to troubleshoot the remote control. Please refer to the buttons on the unit? Remote Control Not Working call flow.
  • Page 35 Please refer to the OM for instructions on how to program remote to TV. Customer wants to program a remote Does the customer want to other than Zenith or LG, the customer will need to contact program their remote? the manufacturer of the remote control. Codes do not work, remote is not compatible.
  • Page 36 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-6. Will Not Play Disc The unit will not play a disc when a disc is inserted into the HTS. Is the disc inserted into Make sure the disc has been inserted into the MICRO System properly. the MICRO System properly? The HTS can not read a disc inserted into the unit upside down.
  • Page 37 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-7. Disc Freezes or Skips The audio and video freeze and skip during play back of a DVD disc. Is the disc inserted into Make sure the disc has been inserted into the MICRO System properly. the MICRO System properly? The HTS can not read a disc inserted into the unit upside down.
  • Page 38 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-8. Can Access Menu, but Not Play a Movie The disc menu is displayed but the disc will not play. Go into the system information screen of the MICRO System. Check the system information To access this menu, bring up the main menu.
  • Page 39 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-10. Aspect Ratio The customer has bars on the top and bottom of the screen, the left and right of the screen, or both. A full screen movie played on a wide screen TV will have bars Is the movie on the left and right side of the TV.
  • Page 40 DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-11. My Unit Won’t Upconvert The customer has a problem with getting the unit to change resolutions to 480p, 720p, 1080i, or 1080p. Ask the customer to press stop to stop the disc from playing. Is the disc Ask the customer to press the resolution button to change the resolution.

  • Page 41: One Point Repair Guide

    ONE POINT REPAIR GUIDE 1. NO POWER PROBLEM No power problem occurs when you power on the unit. 1-1. Solution Replace X100, IC101, IC103. 1-2. How to troubleshoot (Countermeasure) 1) Check X100(Crystal). If it does not oscillate, change X100. 2) Check IC103(Reset IC). IF its output voltage is not more than +2.7 V, change IC103.

  • Page 42: Speaker No Audio Output

    ONE POINT REPAIR GUIDE 2. SPEAKER NO AUDIO OUTPUT No audio output problem occurs when you power on the unit. 2-1. Solution Reassemble AMP IC heat-sink, replace IC101. 2-2. How to troubleshoot (Countermeasure) 1) Reassemble AMP IC heat-sink (heat-sink screw must be assembled tightly). 2) Still NG, please check CN902 Pin1(12 V), Pin 2, 3 (25 V) 3) If it is not appear Vcc, change SMPS board assembly.

  • Page 43: Usb No Detect

    ONE POINT REPAIR GUIDE 3. USB NO DETECT When USB insert, USB no detect on the unit. 3-1. Solution Replace IC350. 3-2. How to troubleshoot (Countermeasure) 1) Please check IC350. Pin3 : 5 V 2) If it is not OK, replace IC350. 3-3.

  • Page 44: Booting

    ONE POINT REPAIR GUIDE 4. NO BOOTING When you turn on unit, it will display “Hello” or “Please wait” message continuously on front panel, and it will not boot-up normally. 4-1. Solution Replace X500. 4-2. How to troubleshoot (Countermeasure) 1) Please check the soldering status of 27 MHz crystal (X500). 2) Please check the frequency of 27 MHz crystal (X500).

  • Page 45: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER (SMPS) Power (SMPS) Check the fuse Replace the fuse. F901. Check the DC V of C901 Check BD901, LF901, LF902. if DC V is over 400 V. Check the DC V of C912,C920,C914 Check IC901, IC954. Replace IC901, IC954.

  • Page 46: P-Sens

    ELECTRICAL TROUBLESHOOTING GUIDE 2. P-SENS -COM, P-SENS Check Pin5,6 of CN901 if DC V is Check power circuit troubleshooting. over 6.2V. 3. VKK CHECK VKK check Check Check power circuit troubleshooting. Pin14 of CN901 if DC V is over -31V. 3-31...

  • Page 47: Com Part Check-1

    ELECTRICAL TROUBLESHOOTING GUIDE 4. -COM PART CHECK-1 -com part check-1 Refer to Check P-SENS (CN001_Pin1,2) SMPS troubleshooting. Check Check both Check the Periphery of If input voltage of IC100 is end voltage of IC100 IC100(AZ7027). over 3.7 V. (AZ7027). Check if IC100 of output voltage Replace Check voltage of IC101 Pin4.

  • Page 48: Fld Display Check

    ELECTRICAL TROUBLESHOOTING GUIDE 6. FLD DISPLAY CHECK FLD display check Check Refer to CN301 Pin3,4,5 voltage SMPS troubleshooting. input. Check if both end voltage of FL+, FL- are -24V, -28V VKK : -31V. Check IC301 Pin9 3.3V Check CN301 connection. Pin50 VKK : -31V.

  • Page 49: Touch Part Check

    ELECTRICAL TROUBLESHOOTING GUIDE 7. TOUCH PART CHECK Touch part check Check the FFC cable IC302 Pin28 voltage 3.3 V OK? or refer to SMPS part. Check TOUCH_IRQ signal(IC302 Pin11). When you touch pad, it is ‘Low’. Replace IC302. When you non-touch pad, it’s ‘High’. Check the connection, TOUCH_DAT,CLK signal OK? or replace IC101.

  • Page 50: Pwm Modulation Check

    ELECTRICAL TROUBLESHOOTING GUIDE 8. PWM MODULATION CHECK PWM modulation part check Check Refer to CN700 Pin1 SMPS troubleshooting. 5 V. Check IC701(PS9851) Replace IC703. VDD Pin voltage(16,24,29,32,35,40,48). Check X601 Pin2: 3.3 V. Check X700 19.2 MHz Replace X601. operation. Check IC701 Pin51 CLK input. IC101 Check Pin38: PWM RESET...

  • Page 51: Power Amp Part Check

    ELECTRICAL TROUBLESHOOTING GUIDE 9. POWER AMP PART CHECK Power AMP part check CN702 Refer to SMPS troubleshooting. Pin1: +12V Pin2,3: 25V Check each IC702 Pin25,26,55,56 input voltage. Check IC702 Pin25,26,55,56 :+12V Check each line resistor output voltage. input. Check PWM modulator input each Pin3, 4, 10, 11.

  • Page 52: Video Part Check

    ELECTRICAL TROUBLESHOOTING GUIDE 10. VIDEO PART CHECK Video part check IC201 Check or replace IC500. Pin1,2,3,4 video signal IC201 Replace IC201. Pin11,12,13,14 signal Check Replace the cable. external cable If it’s still NG, check display device(TV or monitor). 3-37...

  • Page 53: Tuner Function Check

    ELECTRICAL TROUBLESHOOTING GUIDE 11. TUNER FUNCTION CHECK Tuner function check Check Check tuner module voltage tuner module(TU100) (Pin4 : +3.3 V). operation. Check IC200(CS5346)_Pin41,42,43,44 Replace the module. output waveform. Waveform OK? Check or replace IC200. Check IC500 Pin156,157,161,162 I2S signal. Replace IC500.

  • Page 54: Details And Waveforms On System Test And Debugging

    DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27 MHz CLOCK,RESET,FLASH R/W SIGNAL 1) MT1389FE/GH main clock is at 27 MHz(X500) IC500 FIG 1-1 2) MT1389FE/GH reset is high active. 3.3 V 1.2 V DVD_RESET IC500 FIG 1-2 IC500 3-39...

  • Page 55: Sdram Clock

    3) Flash R/W enable signal during download(Downloading) SF_DI SF_DO FIG 1-3 2. SDRAM CLOCK 1) MT1389FE/GH main clock is at 27 MHz(X500) DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V SDCLK IC502 FIG 2-1 3-40...

  • Page 56: Video Part-1 (100% Full Color-Bar)

    3. VIDEO PART-1 (100% FULL COLOR-BAR) CVBS_I 11 10 3-41...

  • Page 57: Video Part-2 (100% Full Color-Bar)

    4. VIDEO PART-2 (100% FULL COLOR-BAR) CVBS COMP_Y COMP_Pb COMP_Pr 3-42...

  • Page 58: Hdmi Part

    5. HDMI PART HDMI_SDA HDMI_SCL HDMI_CLK HDMI_DATA 3-43...

  • Page 59: Servo Open/Close Signal

    6. SERVO OPEN/CLOSE SIGNAL 1) Tray open/close waveform 2) Tray close waveform OPENSW OPENSW CLOSESW CLOSESW OPEN OPEN CLOSE CLOSE FIG 3-1 FIG 3-2 3) Tray open waveform OPENSW CLOSESW OPEN CLOSE FIG 3-3 3-44...
  • Page 60 4) SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) M-STBY FIG 4-1 26 27 3-45...
  • Page 61 5) LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) FIG 5-1 29 30 6) LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION) IC500 DVDLD CDLD FIG 6-1 3-46...
  • Page 62 7) DISC TYPE JUDGEMENT WAVEFORMS PU_DET IC400 FIG 7-1 (DVD) IC500 PU_DET FIG 7-2 (DVD) 35 : This signal can see using special debug program 3-47...
  • Page 63 PU_DET IC400 FIG 7-3 (CD) IC500 PU_DET FIG 7-4 (CD) 38 : This signal can see using special debug program 3-48...
  • Page 64 8) FOCUS ON WAVEFORMS IC500 PU_DET FIG 8-1 (DVD) 40 : This signal can see using special debug program PU_DET FIG 8-2 (CD) 42 43 3-49...
  • Page 65 9) SPINDLE CONTROL WAVEFORMS (NO DISC CONDITION) SPIND FIG 9-1 3-50...
  • Page 66 10) TRACKING CONTROL RELATED SIGNAL(System checking) IC500 PU_DET PU_DET FIG 10-1(DVD) 47 : This signal can see using special debug program PU_DET PU_DET FIG 10-2(CD) 3-51...
  • Page 67 MEMO 3-52...
  • Page 68 PN900 CN902...
  • Page 69 DMA[0-10] DVD_RESET DB[0-15] DVD_TX DVD_RX...
  • Page 83 EAX63686102 Rev 3.15...
  • Page 84 EAX63544601 Rev 3.3...

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Fbs166v

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