Daewoo NC-8011 Manuel utilisateur

Service Manual

MiniComponentSoundSystem

MAY.2010

00506

S/N : 9CD8308200

SAFETY PRECAUTIONS ......................................................................................... 1

TROUBLE SHOOTING GUIDE ................................................................................ 3

EXPLODED VIEW AND MECHANICAL PARTS LIST ............................................. 4

WIRING DIAGRAM ................................................................................................... 5

BLOCK DIAGRAM .................................................................................................... 6

SCHEMATIC DIAGRAM ........................................................................................... 7

FRONT&TUNER Section

MP3/CD Section

POWER Section (Only NC-8011DE Model)

P.C.B PATTERN LAYOUT.........................................................................................8

FRONT Section

MP3/CD Section

APPENDIX-ELECTRICAL PART LIST ...................................................................9

TableofContents

Mini component sound system

NC-8011/NC-8015/NC-8016DE

ADJUSTMENTS ........................................................................................................ 2

SMPS Section (Only NC-8015/8016DE Model)

TUNER Section

SMPS Section (Only NC-8015/8016DE Model)

MAIN Section (Only NC-8011DE Model)

MAIN Section (Only NC-8015/8016DE Model)

MAIN Section (Only NC-8011DE Model)

MAIN Section (Only NC-8015/8016DE Model)

POWER Section (Only NC-8011DE Model)

SafetyPrecautions

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 Connect output signal Connect V-Input signal 87MHz L003 Adjust for

Range Adjustment generator to FM ANT generator to CE002(-)/ Dev.26dB 87MHz±0.5

terminal of D001(-) CE003(-) pin 108.5MHz PVC1(FM OSC) Adjust for

5.0±zHM5.801Bd62.veDnip

FM RF Connect output signal Connect V-Input signal 90MHz L002 Adjust maximal

generator to FM ANT generator to CE002(-)/ Dev.26dB waveform for 90MHz

terminal of D001(-) CE003(-) pin 106MHz PVC2(FM ANT) Adjust maximal

zHM601rofmrofevawBd62.veDnip

Adjustments

●TUNER Section

AM TEST EQUIPMENT

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

AM Frequency Connect output signal Connect V-Input signal 510KHz(America) L009 Adjust for

Range Adjustment generator to test loop generator to CE002(-)/ 513KHz(Europe) 510KHz±10(America)

)eporuE(9±zHK315Bd06.veDnip)-(300EC

1730KHz(America) PVC3(AM OSC) Adjust for

1638KHz(Europe) 1730KHz±20(America)

)eporuE(81±zHK8361Bd06.veD

AM RF Connect output signal Connect V-Input signal 600KHz L011 Adjust maximal

zHK006rofmrofevawBd06.veD/)-(200ECotrotarenegpooltsetotrotareneg

CE003(-) pin 1400KHz PVC4(AM ANT) Adjust maximal

zHK0041rofmrofevawBd06.veD

AM Antenna

Antenna

Terminal

SET

MP3/CD Section

TroubleShootingGuide

CD open and disc insert Refer to 2

Spindle motor rotation

Pick-up unit return(outside >>

inside)

Laser diode on

Focusing operation

Read in CD/MP3 disc operation

Reading and auto play

CD play on

Refer to 3

Refer to 4

Refer to 5

Refer to 6

Auto to play

CD close and CD on

Refer to 1

AC cord in

Power ON/OFF ON

Reading in USB file and USB

Encoding operation Refer to 7

TroubleShootingGuide

MP3/CD Section

1. Pick-u

unit return

2. CD o

en and disc insert

3. Laser diode on

STOP PLAY

C 0V 1.8V

B 3.3V 2.1V

(HQ500) E 3.3V 2.8V

CD open and disc

insert

AC cord in

Function to CD

and Initializing

1. Check CN704

2. Check IC701 of 38pin and 39pin and 40pin

41pin and 44pin.

3. Check CN502,CW504.CN505

4. Check IC504 of 3pin:5.0V

5. Check Q501 collector:+3.3V

6. Check +3.3V (IC500 pin8/18/23/25/38/57/85

/113/116/122)

7. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,

SP- 3.41V

8. Check SPDO +1.90V (IC500 M5675 pin123)

9. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,

SL+ 3.91V

10. Check CD Board(Around IC solder short,cold soldering )

CD open and disc insert

Yes

CD close and cd on

Laser diode on

Yes

Focusing operation

1. Check +1.8V LD on(HQ500 collector)

2. Check +2.1V (HQ500 base pin) >>>in case

of play

Yes

Power ON/OFF ON no

1. Check CN505 of 5pin.

2. Check IC502 SA5888 of 10pin

1. Check CN505 of 3pin.

2. Check IC502 SA5888 of 9pin

*Only NC-8011DE

1.Check F980，F981

2.Check PT903

3.Check RF982，RF983

4.Check CN902,CW902

5.Check CW401 of 4pin(main power on)

6.Check IC900 of 3pin:9V

7.Check Q902 collector:9V

8.Check IC704 of 2pin:3.3V

9.Check IC701 of 22pin:3.3V

*Only NC-8015/8016DE

1.Check F901

2.Check PT901

3.Check CN902 of 6pin:5V

4.Check CN902 of 7pin:(main power on)

5.Check IC911 of 3pin:9V.

6.Check IC704 of 2pin:3.3V

7.Check IC701 of 22pin:3.3V

TroubleShootingGuide

MP3/CD Section

4. Focusing operation

5. Spindle motor rotation

6. Read in CD/MP3 disc operation

7. Read in USB file and USB Encoding operation

Focusing

operation

Yes

1. Check (IC502 SA5888 of 13pin and 14pin)

13pin 3.95V >>3.99V, pin18 3.72V >> 3.75V >>>

in case of play.

2. Check +1.58V(IC500 M5675 of 126pin).

Spindle motor

rotation

Yes

no 1. Check SPDO +1.90V(IC500 M5675 of 123Pin)

in case of play。

2. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,

SL+ 3.91V.

3. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,

SP- 3.41V

Read in CD/MP3

disc

Yes

1. Check CN704

2. Check IC701 of 38pin and 39pin and 40pin

41pin and 44pin.

3. Check CN502,CW504.CN505

4. Check IC504 of 3pin:5.0V

5. Check Q501 collector:+3.3V

6. Check +3.3V (IC500 pin8/18/23/25/38/57/85/113/116/122)

7. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,

SP- 3.41V

8. Check SPDO +1.90V (IC500 M5675 pin123)

9. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,

SL+ 3.91V

10. Check CD Board(Around IC solder short,cold soldering )

Yes

Read in USB file

operation

1. Check IC500(M5675) of 52pin and 53pin.

2. Check CW507,CN707.

3. Check J702.

USB Encoding no

1. Check IC500 (M5675) of 52pin and 53pin.

2. Check CN502 7pin 8pin and 9pin.

3. Check IC500(M5675) 40pin,43pin input signal.

4. Check IC500(M5675) 33pin,36pin output signal.

TroubleShootingGuide

Front &Tuner Section(only NC-8011DE Model)

Change to tuner function

AC cord in

Yes

Power ON/OFF ON

Yes

LCD Display and back

light

1.Check LC701

2.Check IC701

3.Check LD701 and LD702

4.Check X701(32.768KHZ)

Yes

Tuner LCD Display no

1.Check IC102 of 2pin Voltage:3.3V

2.Check IC700(CS9255)

3.Check Q002(S9018) and

Q003(S9018).

4.Check IC701 (CA6808F) of 40pin and

41pin.

5.Check X702(32.768KHZ)

Yes

Function command no

Yes

1.Check IC701 of 7pin /8pin /9pin/10pin/11pin

2.Check SW701/SW702/SW703/SW704/

SW705/SW706/SW707/SW708/SW709/

SW710/SW711/SW712/SW713/SW714

SW715/SW716/SW717/SW718/SW719.

1.Check F980，F981

2.Check PT903

3.Check RF982，RF983

4.Check CN902,CW902

5.Check CW401 of 4pin(main power on)

6.Check IC900 of 3pin:9V

7.Check Q902 collector:9V

8.Check IC704 of 2pin:3.3V

9.Check IC701 of 22pin:3.3V

Function LED light no 1.Check CN700 of 8pin:9V

2.Check LD705/LD706/LD707/LD709/

LD710/LD711/LD712/LD713/LD714/

LD715

Yes

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