Daewoo NC-8112E Service Manual
Daewoo NC-8112E Service Manual

Daewoo NC-8112E Service Manual

Mini component sound system

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Service Manual
Mini Component Sound System
NC-8112E/NC-8114E/NC-8115E/NC-8117E
S/N : FCD8308000
OCT.2011

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Summary of Contents for Daewoo NC-8112E

  • Page 1 Service Manual Mini Component Sound System NC-8112E/NC-8114E/NC-8115E/NC-8117E S/N : FCD8308000 OCT.2011...
  • Page 2: Table Of Contents

    Mini component sound system NC-8112E/NC-8114E/NC-8115E/NC-8117E Table of Contents SAFETY PRECAUTIONS ..................1 TROUBLE SHOOTING GUIDE ................2 EXPLODED VIEW AND MECHANICAL PARTS LIST ..........3 WIRING DIAGRAM ....................4 BLOCK DIAGRAM ....................5 SCHEMATIC DIAGRAM ................... 6 FRONT & TUNER Section...
  • Page 3: Safety Precautions

    Safety Precautions...
  • Page 4 Safety Precautions...
  • Page 5: Trouble Shooting Guide

    Trouble Shooting Guide MP3/CD Section AC cord in Power ON/OFF ON Pick-up unit return(outside >> inside) Refer to 1 and Rollette rotation Refer to 2 CD open and disc insert CD close and CD on CD play on Laser diode on Refer to 3 Refer to 4 Focusing operation...
  • Page 6 Trouble Shooting Guide MP3/CD Section 1. Pick-up unit return AC cord in 1.Check CN700 2.Check IC701 of 33pin/40pin:3.3V Power ON/OFF ON 3..Check IC707(MCU IC) of 32pin:(main power on) 1.Check CN704 2.Check IC707(MCU IC) of 23/24/25/26/27/28pin 3.Check IC705 of 5/12/13pin 4. Check CN502,CW504.CN505 5.
  • Page 7 Trouble Shooting Guide MP3/CD Section 4. Focusing operation 1. Check (IC502 SA5888 of 13pin and 14pin) Focusing 13pin 3.95V >>3.99V, pin18 3.72V >> 3.75V >>> operation in case of play. 2. Check +1.58V(IC500 M5675 of 126pin). 5. Spindle motor rotation 1.
  • Page 8 Trouble Shooting Guide Front & Tuner Section AC cord in 1.Check CN700 2.Check IC701 of 33pin/40pin:3.3V Power ON/OFF ON 3.Check IC707(MCU IC) of 32pin:(main power on) 1.Check CN702 2.Check FD701(VFD) VFD Display 3.Check IC701(SC16315) 1.Check CN700 of 10pin:5V 2.Check LD705/LD706/LD707/LD709/ Function LED light LD710/LD711/LD712/LD713/LD714/ LD715...
  • Page 9 Trouble Shooting Guide Front & Tuner Section 1.Check IC707(MCU IC) of 27/28/31pin 2.Check CN703 Change to tuner function 3.Check CW703 4.Check IC105(TUNER IC) 5.Check X104(12MHZ) 1.Check CN704 2.Check IC707(MCU IC) of 23/24/25/26/27/28pin Change to CD function 3.Check IC705 of 5/12/13pin 1.Check J301 2.Check IC702(IL4560D) Phones sound...
  • Page 10 Trouble Shooting Guide SMPS & AMP Section (Only NC-8112E Model) AC cord in 1.Check F901 2.Check PT901 3.Check CW902 of 6pin:3.3V 4.Check CW902 of 7pin:(main power on) 5.Check CN700 Power ON/OFF ON 6.Check IC707(MCU IC)of 33pin/40pin:3.3V 7.Check IC707(MCU IC) of 32pin:(main power 1.Check CW903...
  • Page 11 Trouble Shooting Guide SMPS & AMP Section (Only NC-8114E/NC-8115E Model) AC cord in 1.Check F901 2.Check PT901 3.Check CN902 of 6pin:3.3V 4.Check CN902 of 7pin:(main power on) 5.Check CN700 Power ON/OFF ON 6.Check IC707(MCU IC)of 33pin/40pin:3.3V 7.Check IC707(MCU IC) of 32pin:(main power 1.Check CW903 2.Check CN702 3.Check FD701(VFD)
  • Page 12 Trouble Shooting Guide SMPS & AMP Section (Only NC-8117E Model) START(AC cord ON) DISPLAY(DEMO) 1. SMPS Primary Part : Power Cord, Fuse, IC907, PT901, IC905 Check. 2. SMPS Secondary Part : IC902, Q951~Q961 Check 1. FRONT : Micom(IC707) 1. Front : VFD Driver(IC707), VFD(FD701) Check 1.
  • Page 13 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 14 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 15 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 16 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 17 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 18 Trouble Shooting Guide SMPS & AMP section (Only NC-8117E Model)
  • Page 20 PARTS NAME CODE NO. DESCRIPTIONS Q'TY REMARKS PARTS NAME CODE NO. DESCRIPTIONS Q'TY REMARKS MAIN PCB FCD6501250 NC-8112E MAIN PCB FCD6501310 NC-8114E/NC-8115E MAIN PCB FCD6501290 NC-8114E /NC-8115E FCD6501260 NC-8112E FCD6501270 NC-8114E/8115E FCD6501280 10 BRACKET CABINET 9CD2421200 SECC T1.0 13 CUSHION FOOT 9CD4212500 POPON MX-48HF Φ...
  • Page 21: Wiring Diagram

    Wiring Diagram Only NC-8112E Model...
  • Page 22 Wiring Diagram Only NC-8114E/NC-8115E Model...
  • Page 23 Wiring Diagram Only NC-8117E Model...
  • Page 24: Block Diagram

    Block Diagram Only NC-8112E Model...
  • Page 25 Block Diagram Only NC-8114E/NC-8115E Model...
  • Page 26 Block Diagram Only NC-8117E Model...
  • Page 27: Schematic Diagram

    Schematic Diagram FRONT & TUNER Section...
  • Page 28: Mp3 / Cd Section

    Schematic Diagram MP3 / CD Section...
  • Page 29: Main Section

    Schematic Diagram MAIN Section (Only NC-8112E Model)
  • Page 30 Schematic Diagram MAIN Section (Only NC-8114E/NC-8115E Model)
  • Page 31 Schematic Diagram MAIN Section (Only NC-8117E Model) TI POWER...
  • Page 32 Schematic Diagram SMPS Section (Only NC-8112E Model)
  • Page 33: Smps Section

    Schematic Diagram SMPS Section (Only NC-8114E/NC-8115E Model) *NC-8114/8115E POWER OPTION NC-8114E NC-8115E CE904 330UF/200V 470UF/200V CE923 330UF/200V 470UF/200V IC904 TNY280PN TOP-250Y DZ911 DZ912 3.9B 5.1B Vcut -4.3V +4.3V -12V_SW +12V_SW MVCC +5.3V_SW STBY +3.3V MAIN Power_On SYS +5.3V_SW...
  • Page 34 Schematic Diagram SMPS Section (Only NC-8117E Model)
  • Page 35: Pattern Layout

    P. C. B Pattern Layout FRONT Section <Top View>...
  • Page 36 P. C. B Pattern Layout FRONT Section <Bottom View>...
  • Page 37: Tuner Section

    P. C. B Pattern Layout TUNER Section <Top View>...
  • Page 38 P. C. B Pattern Layout TUNER Section <Bottom View>...
  • Page 39: Mp3 / Cd Section

    P. C. B Pattern Layout MP3 / CD Section <Top View>...
  • Page 40 P. C. B Pattern Layout MP3 / CD Section <Bottom View>...
  • Page 41: Main Section

    P. C. B Pattern Layout MAIN Section (Only NC-8112E Model) <Top View>...
  • Page 42 P. C. B Pattern Layout MAIN Section (Only NC-8112E Model) <Bottom View>...
  • Page 43 P. C. B Pattern Layout MAIN Section (Only NC-8114E/NC-8115E Model) <Top View>...
  • Page 44 P. C. B Pattern Layout MAIN Section (Only NC-8114E/NC-8115E Model) <Bottom View>...
  • Page 45 P. C. B Pattern Layout MAIN Section (Only NC-8117E Model) <Top View>...
  • Page 46 P. C. B Pattern Layout MAIN Section (Only NC-8117E Model) <Bottom View>...
  • Page 47 P. C. B Pattern Layout SMPS Section (Only NC-8112E Model) <Top View>...
  • Page 48 P. C. B Pattern Layout SMPS Section (Only NC-8112E Model) <Bottom View>...
  • Page 49: Smps Section

    P. C. B Pattern Layout SMPS Section (Only NC-8114E/NC-8115E Model) <Top View>...
  • Page 50 P. C. B Pattern Layout SMPS Section (Only NC-8114E/NC-8115E Model) <Bottom View>...
  • Page 51 P. C. B Pattern Layout SMPS Section (Only NC-8117E Model) <Top View>...
  • Page 52 P. C. B Pattern Layout SMPS Section (Only NC-8117E Model) <Bottom View>...
  • Page 53 APPENDIX - ELECTRICAL PART LIST NC-8112E/NC-8114E/NC-8115E/NC-8117E SVC BOM ◆◆◆◆◆◆PCB MAIN ASS'Y FOR NC-8112E◆◆◆◆◆◆ CM800、CM801 CMXK1J224J-X C MYLAR MC 63V 0.22MF J HD401、HD402、HD802 DZDS160--- DIODE SW CHIP KDS160 (KDS511) 1SR154-400 4526 - - - L800、L801、L802、L803 5LF220K900 COIL LPF 22UH LPF 7012P-02-220L ◆◆◆◆◆◆PCB MAIN ASS'Y FOR NC-8114E/NC-8115E◆◆◆◆◆◆...
  • Page 54 5S50101Z67A-2 SW TACT THVV502GAA SW713、SW714、SW715 5S50101Z67A-2 SW TACT THVV502GAA SW716、SW717、SW718 5S50101Z67A-2 SW TACT THVV502GAA ◆◆◆◆◆◆PCB USB&AUX JACK ASS'Y FOR NC-8112E/NC-8114E/NC-8115E/NC-8117E◆◆◆◆◆◆ JACK H/P EJ-3511 ◆◆◆◆◆◆PCB TUNER ASS'Y FOR NC-8112E/NC-8114E/NC-8115E/NC-8117E◆◆◆◆◆◆ HD051、HD052 DZDS160--- DIODE SW CHIP KDS160(KDS511) ◆◆◆◆◆◆PCB MP3CD FOR NC-8112E/NC-8114E/NC-8115E/NC-8117E◆◆◆◆◆◆ D500 IN4001...
  • Page 55 APPENDIX - ELECTRICAL PART LIST DZ904、DZ905、DZ906 DZTZ9R1B-- DIODE(Zener) MTZ-9.1V B 0.5W (AUTO) c t i - - - - - - L901、 ) ◆◆◆◆◆◆PCB SMPS ASS'Y FOR NC-8114E/NC-8115E◆◆◆◆◆◆ - - - - - - D910、D915、D917 DHER108G-- DIODE(UFR) HER108G(HER108S) D918、D923、D924 DHER108G-- DIODE(UFR) HER108G(HER108S) D911、...
  • Page 56: Appendix - Electrical Part List

    APPENDIX - ELECTRICAL PART LIST ◆◆◆◆◆◆PCB SMPS ASS'Y FOR NC-8117E◆◆◆◆◆◆ CM901、CM904 CMXK2J472K C MYLAR MC 630V 4700MF J CM902、CM951 CMXM2A104J-X C MYLAR 100V 0.1MF J CM905 CMXM2A102J-X C MYLAR 100V 1000PF J CX901、CX903 CL1BB3334K C CERA(X-CAP) 275V 334(X-CAP)436D D901、D902、D904、D906 DHER108S-- DIODE HER108S A-405 TYPE (HER108G) D907、D954、D956、D957...

This manual is also suitable for:

Nc-8114eNc-8115eNc-8117e

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