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Table of Contents
Related Manuals for Daewoo NC-8913
Summary of Contents for Daewoo NC-8913
- Page 1 9CD8308100 Service Manual Mini Component Sound System July. 2009...
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Page 2: Table Of Contents
Mini component sound system NC-8911/NC-8913/NC-8915DU NC-8911/NC-8913/NC-8915DE Table of Contents SAFETY PRECAUTIONS ..................1 ADJUSTMENTS ......................2 TROUBLE SHOOTING GUIDE ................3 EXPLODED VIEW AND MECHANICAL PARTS LIST ..........4 WIRING DIAGRAM ....................5 BLOCK DIAGRAM ....................6 SCHEMATIC DIAGRAM ................... 7... -
Page 3: Safety Precautions
Safety Precautions... - Page 4 Safety Precautions...
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Page 5: Adjustments
Adjustments ●TUNER Section FM TEST EQUIPMENT 1.Adjust L003 to obtain 87MHz±0.5 2.Adjust PVC1(FM OSC)to obtain 108.5MHz±0.5 3.Adjust L002 to obtain maximal waveform for 90MHz 4.Adjust PVC2(FM ANT)to obtain maximal waveform for 106MHz Item Input Circuit Setup Output Circuit Setup S.S.G setting Adjust point Adjustment FM Frequency... -
Page 6: Adjustments
Adjustments ●TUNER Section AM TEST EQUIPMENT AM Antenna Antenna Terminal 1.Adjust L009 to obtain 510KHz±10(America)/513KHz±9(Europe) 2.Adjust PVC3(AM OSC)to obtain 1730KHz±20(America)/1638KHz±18(Europe). 3.Adjust L011 to obtain maximal waveform for 600KHz 4.Adjust PVC4(AM ANT)to obtain maximal waveform for 1400KHz Item Input Circuit Setup Output Circuit Setup S.S.G setting Adjust point Adjustment... -
Page 7: Trouble Shooting Guide
Trouble Shooting Guide MP3/CD Section AC cord in Power ON/OFF ON Pick-up unit return(outside >> Refer to 1 inside) CD open and disc insert Refer to 2 CD close and CD on CD play on Refer to 3 Laser diode on Refer to 4 Focusing operation Refer to 5... - Page 8 Trouble Shooting Guide MP3/CD Section 1. Pick-up unit return AC cord in 1.Check F980，F981 2.Check PT903 3.Check RF982，RF983 4.Check CN902,CN701 5.Check IC900 of 3pin:9V , Power ON/OFF ON IC704 of 2pin:3.3V 6.IC701 of 22pin:3.3V 1. Check CN704 2. Check IC701 of 38pin and 39pin and 40pin Function to CD 41pin and 44pin.
- Page 9 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 M5673 or M5675 of 126pin). 5. Spindle motor rotation Spindle motor 1.
- Page 10 Trouble Shooting Guide Front Section AC cord in 1.Check F980，F981 2.Check PT903 3.Check RF982，RF983 4.Check CN902,CN701 5.Check IC900 of 3pin:9V , Power ON/OFF ON IC704 of 2pin:3.3V 6.IC701 of 22pin:3.3V 1.Check LC701 LCD Display and back 2.Check IC701 light 3.Check LD701 and LD702 4.Check X701(32.768KHZ) 1.Check IC701 of 7pin /8pin /9pin/10pin Function command...
- Page 11 Trouble Shooting Guide Front Section 1.Check AM ANT and CN001 2.FM ANT: CN101. 3.Check IC101 VCC 6pin: 4.7V. AM/FM Speaker sound 4.Check PC101 5.Check L008 and L009. 6.Check output signal pin of IC101 of 13pin and 14pin. 1.Check CN704 2.Check IC701 of 38pin and 39pin and 40pin Change to CD function 41pin and 44pin.
- Page 12 Trouble Shooting Guide POWER& Section AC cord in 1.Check F980，F981 2.Check PT903 3.Check RF982，RF983 4.Check CN902,CN701 5.Check IC900 of 3pin:9V , Power ON/OFF ON IC704 of 2pin:3.3V 6.IC701 of 22pin:3.3V 1.Check LC701 2.Check IC701 LCD Display and back 3.Check LD701 and LD702 light 1.Check IC800(TDA7292):Voltage of 3pin, 6pin and 1pin :more than DC(29.5,-29.5V).
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Page 13: Exploded View And Mechanical Parts List
Exploded View and Mechanical Parts List... - Page 14 HOLDER SCREW B 9CD2307600 36-1 HEAT SINK 75 9CD4415300 NC-8915 (75W) PANEL FRONT 9CD0321600 HIPS 36-2 HEAT SINK 50 9CD4415200 NC-8913 (50W) COVER SIDE L 9CD0425400 HIPS 36-3 HEAT SINK 15 9CD4415000 NC-8911 (15W) COVER SIDE R 9CD0425500 HIPS PLATE MICA...
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Page 15: Wiring Diagram
Wiring Diagram... -
Page 16: Block Diagram
Title Block Diagram... - Page 17 220UF/16V HC328 HC329 TO CD MP3 PCB HQ706 Q705 HR761 103PF 3.9K HD709 103PF C111S KDS160 PSM OPTION NC-8911 NC-8913/8915 COMPANY: DAT HK LTD. HR780 HR781 HR782 HR789 HR790 CE713 LD703 HQ717/710 NEW MODEL TITLE: FRONT SCH HR766 HR734 6.2K HR762 3.9K...
- Page 18 Title Schematic Diagram MP3 / CD Section...
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Page 19: Schematic Diagram
2.2UF/50V LOCATION NC-8911 NC-8913 NC-8915 CE(400MV) S/T(550MV) CE(400MV) S/T(550MV) CE(400MV) S/T(550MV) 392P CE421 HR422 8.2K 8.2K 8.2K CE416 2.2UF/50V *Only NC-8913/8915DU(DE) HR423 8.2K 8.2K 8.2K 47UF/16V HR424 HR437 2.7K HR425 HC803 +9V(SW) CE804 100UF/50V(*) 104P HR434 100 SPEAKER JACK PCB... - Page 20 Schematic Diagram POWER Section SW901 ZH-06-01 NC-891XDU/DE POWER SCHEMATIC...
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Page 21: Front Section
Title P.C.B Pattern Layout FRONT Section <Top View>... - Page 22 Title P.C.B Pattern Layout FRONT Section <Bottom View>...
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Page 23: Mp3 / Cd Section
Title P.C.B Pattern Layout MP3 / CD Section <Top View>... - Page 24 Title P.C.B Pattern Layout MP3 / CD Section <Bottom View>...
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Page 25: Main Section
P.C.B Pattern Layout MAIN Section <Top View>... - Page 26 P.C.B Pattern Layout MAIN Section <Bottom View>...
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Page 27: Power Section
P.C.B Pattern Layout POWER Section <Top View>... - Page 28 P.C.B Pattern Layout POWER Section <Bottom View>...
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Page 29: Appendix - Electrical Part List
APPENDIX - ELECTRICAL PART LIST NC-8911/NC-8913/NC-8915DU,NC-8911/NC-8913/NC-8915DE SVC BOM ◆◆◆◆◆◆ PCB MAIN ASS'Y ◆◆◆◆◆◆ Location Part Code Part Name Description Remark D900 、 D901 、 D902 、 D903 DIN5402--- DIODE IN5402 Only NC-8913DU/DE, NC-8915DU/DE D900 、 D901 、 D902 、 D903... - Page 30 APPENDIX - ELECTRICAL PART LIST ◆◆◆◆◆◆ PCB MP3CD ASS'Y ◆◆◆◆◆◆ Location Part Code Part Name Description Remark D500 、 D501 、 D502 DIN4001--- DIODE IN4001 HQ500 TZTA1504S- TR CHIP KTA1504S HQ508 TZRC107S-- TR CHIP KRC107S HQ503 、 HQ504 、 HQ509 TZTC3875S- TR CHIP KTC3875Y...
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