LG NB3532A Service Manual
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LG NB3532A Service Manual

Stylish & slim sound bar
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Internal Use Only
Website http://biz.lgservice.com
300 W STYLISH & SLIM SOUND BAR
SERVICE MANUAL
MODEL: NB3532A
(NB3532A, S33A1-D)
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN76153344
SEPTEMBER, 2013

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  • Page 1 Internal Use Only Website http://biz.lgservice.com 300 W STYLISH & SLIM SOUND BAR SERVICE MANUAL MODEL: NB3532A (NB3532A, S33A1-D) CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : AFN76153344 SEPTEMBER, 2013...
  • Page 2 CONTENTS SECTION 1 ..GENERAL SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..REPLACEMENT PARTS LIST...

  • Page 3: Table Of Contents

    SECTION 1 GENERAL CONTENTS ESD PRECAUTIONS ............................1-3 MICOM HIDDEN KEY MODE ......................... 1-4 UPDATE PROGRAM ............................1-5 SERVICE INFORMATION FOR EEPROM ....................1-5 SPECIFICATIONS ............................1-6...

  • Page 4: 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 5: Micom Hidden Key Mode

    MICOM HIDDEN KEY MODE HIDDEN MODE ENTRANCE KEY EXIT KEY DISPLAY RESULT 1) Micom, 2) ESS, 3) Touch Key M 1009303 4) wireless SPK E 1106151 module TX,RX Ver Front Stop + RMC T 1106301 Version Check POWER OFF ex) TX35RX35 Play for 5s TX35RX35 5) wireless SPK...

  • Page 6: Update Program

    UPDATE PROGRAM 1) File Name Model Name NB3530A Micom Update Filename MICOM_NB3530_1301030_0xFE5C.hex ESS Update Filename DSP_NB3530_1212261_7613.rom Wireless Rx/Tx Module Update Filename WIRELESS.BIN Wireless Rx Micom Update Filename WIRELESS_MICOM.HEX Touch Key Filename TOUCH1_NB3530.DLD 2) File Name is in uppercase letters only. 3) PROGRAM DOWNLOAD 1.

  • Page 7: Specifications

    SPECIFICATIONS • GENERAL Power requirements 120 V ~ 60 Hz Power consumption 40 W Dimensions (W x H x D) 950 x 71 x 47 mm (37.4 x 2.8 x 1.9 inches) Net Weight (Approx.) 2.5 kg (5.5 lbs) Operating temperature 41 °F to 95 °F (5 °C to 35 °C) Operating humidity 5 % to 90 %...
  • Page 8 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ............................2-3 1. RECEIVER BAR SECTION (NB3530A) ....................2-3 2. WIRELESS SUBWOOFER SECTION (S33A1-D) ..................2-5 3. PACKING ACCESSORY SECTION ......................2-7...
  • Page 9 MEMO...

  • Page 10: Exploded Views

    EXPLODED VIEWS 1. RECEIVER BAR SECTION (NB3532A) NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE A44B LITERATURE. CABLE5 CABLE2 SMPS CABLE3 A44A MAIN 250L...

  • Page 11: Wireless Subwoofer Section (S33A1-D)

    2. WIRELESS SUBWOOFER SECTION (S33A1-D) NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. A900 A910 A54W A45W A900A WIRELESS SMPS 300W A47W...

  • Page 12: Packing Accessory Section

    3. PACKING ACCESSORY SECTION 801 Owner’s manual 806 Optical cable 829 Cable ties 808 Batteries for arranging cables 900 Remote control 835 Wall bracket 803 Main packing 804 Bag 803A Packing (Pad) 802 Box...
  • Page 13 MEMO...
  • Page 14 SECTION 3 ELECTRICAL CONTENTS ONE POINT REPAIR GUIDE .......................... 3-2 1. RECEIVER BAR COMPONENT REPAIR GUIDE .................. 3-2 ELECTRICAL TROUBLESHOOTING GUIDE ....................3-7 1. RECEIVER BAR TROUBLESHOOTING ....................3-7 WAVEFORMS OF MAJOR CHECK POINT ....................3-11 WIRING DIAGRAMS ............................3-15 1.

  • Page 15: One Point Repair Guide

    ONE POINT REPAIR GUIDE 1. RECEIVER BAR ONE POINT REPAIR GUIDE 1-1. NO POWER PROBLEM No power problem occurs when you power on the unit. 1-1-1. 23.5 VA 1-1-1-1. Solution Replace F900, BD900, IC920, PC900, IC950. 1-1-1-2. How to troubleshoot (Countermeasure) Case 1) No Standby LED: Check F900, BD900, IC920 and around components Replace these.
  • Page 16 RECEIVER BAR ONE POINT REPAIR GUIDE 1-2. POWER ON ERROR No display or Not working. 1-2-1. DC-DC Converter 1-2-1-1. Solution Replace IC802 on MAIN board. 1-2-1-2. How to troubleshoot (Countermeasure) 1) Please check T801 voltage(12 V). Please check CA807(Vkk), CA805(FL+), CA806(FL-). 2) If you cannot get 12 V, IC802 has problem.
  • Page 17 RECEIVER BAR ONE POINT REPAIR GUIDE 1-3. NO SOUND 1-3-1. Portable or Optical Function 1-3-1-1. Solution Replace IC301 or IC304 or Portable/ Optical Jack. 1-3-1-2. How to troubleshoot (Countermeasure) 1) Please check Portable input and Optical Input. Please check ADC output(Pin9, 10, 13 - I2S signal). Please check DSP input(Pin80, 94 - S/PDIF signal).
  • Page 18 RECEIVER BAR ONE POINT REPAIR GUIDE NO SOUND 1-3-2. USB Function 1-3-2-1. Solution Replace IC301 on MAIN board. 1-3-2-2. How to troubleshoot (Countermeasure) 1) Please check IC301(Pin112, 113) USB data signal. If you cannot find IC301 USB data signal, replace IC301. 1-3-2-3.
  • Page 19 RECEIVER BAR ONE POINT REPAIR GUIDE 1-4. NO AUDIO 1-4-1. All function 1-4-1-1. Solution Replace IC301 or IC701. 1-4-1-2. How to troubleshoot (Countermeasure) 1) Please check IC301(Pin71, 74 and 69, 70) or IC701(Pin5, 6 and 14, 15). PWM signal output (or input) 2) If you cannot find PWM signal, replace IC301.

  • Page 20: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. RECEIVER BAR TROUBLESHOOTING 1-1. POWER SUPPLY ON SMPS BOARD No 24 VA F900 normal? Replace F900 (same fuse). TH900 normal? Replace TH900. BD900 normal? Replace BD900. Is the Vcc (12 V ~ 24 V) supplied to IC920 D921 normal? Pin4? Power Line of Main PCB is short.
  • Page 21 RECEIVER BAR TROUBLESHOOTING 1-2. SYSTEM PART Power On IC101 “WELCOME” 3 V_MICOM, 3.3 V Check IC801 and SMPS. Display on FLD X101 Replace X100. 20.000 MHz Replace IC100 UPD78F1165. MAIN board 3V_MICOM, Check D804, IC802 FL(+), FL(-) & SMPS. 3401_RX, 3401_CLK, 3401_STB Check CN303.
  • Page 22 RECEIVER BAR TROUBLESHOOTING 1-3. NO AUDIO OUTPUT BD/ CD/ DVD disc or USB play IC301 Pin112, 113 USB_IN signal Check JK304 or replace. IC301 Pin69,70, 71, 74 PWM Signal Check IC301 or replace. Check AMP IC output stage and speaker terminal. Portable function IC304 Pin1, 2 PTB input signal...
  • Page 23 RECEIVER BAR TROUBLESHOOTING Optical function IC301 Pin35, 94 OPT_IN signal Check JK301, JK302 or replace. IC301 Pin69, 70, 71, 74 PWM signal Check IC301 or replace. Check AMP IC output stage and speaker terminal. 3-10...

  • Page 24: Waveforms Of Major Check Point

    WAVEFORMS OF MAJOR CHECK POINT 1. SYSTEM PART-1 (X-TAL) FIG 1-1 MICOM(IC100) - R5F100GEAFB FIG 1-2 DSP(IC301) – ES8690 3-11...
  • Page 25 2. SYSTEM PART-2 (I2S SIGNAL) FIG 2-1 DSP(IC301) – ES8690 3-12...
  • Page 26 FIG 2-2 DSP(IC301) – ES8690 3-13...
  • Page 27 MEMO 3-14...

  • Page 28: Wiring Diagrams

    WIRING DIAGRAMS 1. RECEIVER BAR WIRING DIAGRAM 3-15 3-16...

  • Page 29: Wireless Subwoofer Wiring Diagram

    2. WIRELESS SUBWOOFER WIRING DIAGRAM 3-17 3-18...

  • Page 30: Block Diagrams

    BLOCK DIAGRAMS 1. RECEIVER BAR BLOCK DIAGRAMS 1-1. OVERALL BLOCK DIAGRAM 3-19 3-20...

  • Page 31: Receiver Bar Block Diagrams

    RECEIVER BAR BLOCK DIAGRAMS 1-2. POWER BLOCK DIAGRAM 3-21 3-22...

  • Page 32: Wireless Subwoofer Block Diagram

    2. WIRELESS SUBWOOFER BLOCK DIAGRAM 3-23 3-24...

  • Page 33: Circuit Diagrams

    BE MODIFIED OR ALTERED WITH OUT PERMISSION WAY, IMPLEMENTATION OF THE LATEST SAFETY during Play mode. FROM THE LG CORPORATION. ALL COMPONENTS AND PERFORMANCE IMPROVEMENT CHANGES SHOULD BE REPLACED ONLY WITH TYPES INTO THE SET IS NOT DELAYED UNTIL THE NEW IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.

  • Page 34: Receiver Bar Circuit Diagrams

    RECEIVER BAR CIRCUIT DIAGRAMS 1-2. MAIN-MICOM CIRCUIT DIAGRAM MICOM : WAVEFORM NUMBER EAX65067301_4.1.3_MAIN_SD_1 2012.12.20 3-27 3-28...
  • Page 35 RECEIVER BAR CIRCUIT DIAGRAMS 1-3. MAIN-DSP CIRCUIT DIAGRAM : WAVEFORM NUMBER EAX65067301_4.1.3_MAIN_SD_2 2012.12.20 3-29 3-30...
  • Page 36 RECEIVER BAR CIRCUIT DIAGRAMS 1-4. MAIN-AMP CIRCUIT DIAGRAM EAX65067301_4.1.3_MAIN_SD_3 2012.12.20 3-31 3-32...
  • Page 37 RECEIVER BAR CIRCUIT DIAGRAMS 1-5. MAIN-POWER CIRCUIT DIAGRAM POWER EAX65067301_4.1.3_MAIN_SD_4 2012.12.20 3-33 3-34...
  • Page 38 RECEIVER BAR CIRCUIT DIAGRAMS 1-6. FRONT CIRCUIT DIAGRAM FRONT EAX65030201_6.1.4_FRONT_SD 2012.12.20 3-35 3-36...

  • Page 39: Circuit Voltage Chart

    CIRCUIT VOLTAGE CHART 1. ICs LOCATION ENG. REAL LOCATION ENG. REAL SPECIFICATION DIVISION PIN NO. SPEC. SPECIFICATION DIVISION PIN NO. SPEC. DESCRIPTION DESCRIPTION VOLTAGE VOLTAGE VOLTAGE VOLTAGE R5F100GEAFB 0.5 VCC_12V 2 PIN -0.3~13V 12.290 to 6.5 170mA 20MHz TAS5612LADDVR -0.3 ~ GVDD1 1,22 -0.3~13V...
  • Page 40 2. COILS 3. CAPACITORS LOCATION NO. DESCRIPTION Before After Current Difference Vol. LOCATION NO. DESCRIPTION SPECIFICATION VOLTAGE L101 Filter,Bead UBW2012-301 300OHM 2A 3.339 3.339 0.011 CA201 Capacitor,AL,Chip 22uF 20% 16V 3.291 L102 Filter,Bead UBW2012-301 300OHM 2A 18.17 18.17 0.061 CA301 Capacitor,AL,Chip 33uF 20% 25V 5.01...

  • Page 41: Printed Circuit Board Diagrams

    PRINTED CIRCUIT BOARD DIAGRAMS 1. RECEIVER BAR PRINTED CIRCUIT BOARD DIAGRAMS 1-1. SMPS P. C. BOARD (TOP VIEW) (BOTTOM VIEW) NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock. 3-41 3-42...

  • Page 42: Receiver Bar Printed Circuit Board Diagrams

    RECEIVER BAR PRINTED CIRCUIT BOARD DIAGRAMS 1-2. MAIN P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 3-43 3-44...
  • Page 43 RECEIVER BAR PRINTED CIRCUIT BOARD DIAGRAMS 1-3. FRONT P. C. BOARD (TOP VIEW) (BOTTOM VIEW) 3-45 3-46...

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S33a1-d

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