Samsung HT-DB750 Manual de usuario

DVD RECEIVER AMP

HT-DB750

HT-DB770

HT-DB1750

HT-DB1850

SERVICE Manual

DVD RECEIVER AMP SYSTEM CONTENTS

ASC LSM V-H/P

1. Alignment and Adjustments

2. Exploded Views and Parts List

3. Electrical Parts List

4. Block Diagrams

5. PCB Diagrams

6. Wiring Diagram

7. Schematic Diagrams

8. IC block Diagrams

9. Troubleshooting

- Confidential -

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1-1Samsung Electronics

1. Alignment and Adjustments

1. Tuner

FM THD Adjustment

Output

Output 28 dB(±2dB)

60 dB

Minumum Distortion (0.4% below)

(Figure 1-1)

SSG FREQ.

Adjustment

point

(FM DET)

98 MHz

FM DETECTOR COIL

FM Search Level Adjustment

Adjust SVR1 so that “TUNED” of FLT is

lighted (Figure 1-2)

Figure1-2 FM Auto Search LevelAdjustment

*Adjust FM S.S.G level to 28dB

Figure1-1 IF CENTER and THD Adjustment

SSG FREQ.

Adjustment

point

(SVR1)

98 MHz

BEACON

SENSITIVITY

SEMI-VR(20KΩ)FM S.S.G GND

28 dB

FM S.S.G

Output

GND

Speaker

Terminal

Antenna

Terminal

Distortion Meter

Input

SET

Input

output

Oscilloscope

FM IN

FM Antenna

SET

10 kΩ

OUTPUT

AM SSG

450KHZ

INPUT

AM ANT

Speaker Terminal

60cm

AM IF

VTVM Oscilloscope

AM(MW) I.F Adjustment

Maximum output (Figure 1-3)

SSG FREQ.

Frequency

Adjustment

point

450 kHz

522 kHz

AM IF

Figure1-3 AM I.F Adjustment

OUTPUT

* Adjustment Location of Tuner PCB

Fig 1-4 OSC Voltage

AM(MW) OSC

Adjustment

Output 1~7.0±0.5V

Received FREQ.

Adjustment

point

522~1611 KHz

AM(MW) RF

Adjustment

ITEAM

594 KHz

Maximum

Output(Fig1-4)

LW OSC

Adjustment

146~290 KHz

2~7.0±0.5V

LW RF

Adjustment

150 KHz

Maximum

Output(Fig1-4)

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Samsung Electronics 2-1

2.Exploded Views and Parts List

2-1-1 Total Exploded View

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Samsung Electronics

2-2

* Parts List of Total Exploded view : HT-DB750

No. Code No. Description Specification Q’ty Remark

1AH64-02431A BADGE-BRAND AL, DIA-CUT 1

2AH64-02362C PANEL-FRONT AL EXTRUSION (P-SCAN) 1 HT-DB750

AH64-02362D AL EXTRUSION (EUROPE) 1 HT-DB750

AH64-02362F AL EXTRUSION (ASIA,NO P-SCAN) 1 HT-DB750

AH64-02362H AL EXTRUSION (EUROPE) 1 HT-DB1750

AH64-02362K AL EXTRUSION (S.AMERICA) 1 HT-DB1750

AH64-02362M AL EXTRUSION (CIS) 1 HT-DB1850

AH64-02362N AL EXTRUSION (CHINA) 1 HT-D750C

3AH67-00217A LENS-POWER PMMA 1

4AH64-02429A WINDOW-DVD HALF MIRROR 3T 1

5AH64-02430A WINDOW-VFD HALF MIRROR 3T 1

6AH61-01279A BRKT-DOOR SPTE 0.5T 1

7AH61-01277A HOLDER-DOOR ABS 1

8AH61-01280A SPRING-DOOR SUS 0.2T 1

9AH64-02359B CABINET-FRONT HIPS 1

10 AH64-02360A KNOB-FUNCTION ABS 1

11 AH81-01117A A/S-VOLUME ASSY AL, DIA-CUT 1

12 AH67-00210A LENS-VOLUME PMMA 1

13 AH73-00005A CUSHION-FOOT EVA 4

14 AH64-02322A KNOB-DSP ABS 1

15 AH67-00216A LENS-DSP PMMA 3

16 AH64-02356A CABINET-BOTTOM SECC 1.0T 1

17 AH61-01377A BRKT-PCB FUNCTION SECC 2.0T 1

18 AH64-02355C CABINET-REAR SECC 0.8T (EXP, BASIC) 1

AH64-02355D SECC 0.8T (EUROPE,SCART JACK) 1

AH64-02355E SECC 0.8T (ASIA, DUAL VOLTAGE) 1

19 AH31-00030B MOTOR-DC RF 300E 1

20 AH63-00303B COVER-FAN ABS 1

21 AH64-02357B CABINET-TOP SECC 0.6T 1

RAH59-01169G REMOCON ASSY RDS 1

AH59-01169H REMOCON ASSY P-SCAN 1

AH59-01169J REMOCON ASSY NO RDS, NO P-SCAN 1

R1 AH81-01337A DOOR-HIDDEN 1

R2 AH81-01336A COVER-BATTERY 1

MAH59-01183D MICROPHONE ASSY MIC 1

A6003-001499 SCREW-TAP TITE BWH 3 * 8 SILVER 13

B6002-000126 SCREW-TAPPING FH 3 * 10 BLK 2

CAH60-10020D SCREW-TAP TITE RH 2.6 * 8 YEL 5

D6003-000276 SCREW-TAP TITE BH 3 * 10 YEL 12

EAH60-10108A SCREW-TAP TITE BWH 3*10 (W10) YEL 1

F6002-000398 SCREW-TAP TITE BH 3 * 6 YEL 21

GAH60-00014A SCREW-TAP TITE TH 4* 6 YEL 4

HAH60-00025A SCREW-TAP TITE BH 3 * 10 SILVER 17

No. Code No. Description Specification Q’ty Remark

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Samsung Electronics 2-3

2-1-2 Total Exploded View

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Samsung Electronics

2-4

* Parts List of Total Exploded view : HT-DB770

No. Code No. Description Specification Q’ty Remark

1AH64-02431E BADGE-BRAND AL,SANDING 1

2AH64-02362J PANEL-FRONT AL EXTRUSION 1

3AH67-00217A LENS-POWER PMMA 1

4AH64-02429A WINDOW-DVD HALF MIRROR 3T 1

5AH64-02430A WINDOW-VFD HALF MIRROR 3T 1

6AH61-01279A BRKT-DOOR SPTE 0.5T 1

7AH61-01277A HOLDER-DOOR ABS 1

8AH61-01280A SPRING-DOOR SUS 0.2T 1

9AH64-02359B CABINET-FRONT HIPS 1

10 AH64-02360A KNOB-FUNCTION ABS 1

11 AH81-01117A A/S-VOLUME ASSY AL, DIA-CUT 1

12 AH67-00210A LENS-VOLUME PMMA 1

13 AH73-00005A CUSHION-FOOT EVA 4

14 AH64-02322A KNOB-DSP ABS 1

15 AH67-00216A LENS-DSP PMMA 3

16 AH64-02356A CABINET-BOTTOM SECC 1.0T 1

17 AH61-01377A BRKT-PCB FUNCTION SECC 2.0T 1

18 AH64-02355M CABINET-REAR SECC 0.8T 1

19 AH31-00030B MOTOR-DC RF 300E 1

20 AH63-00303B COVER-FAN ABS 1

21 AH64-02357B CABINET-TOP SECC 0.6T 1

22 AH61-01377B BRKT-DAB SECC 1.0T 1

RAH59-01169Z REMOCON ASSY RDS 1

R1 AH81-01337A DOOR-HIDDEN 1

R2 AH81-01336A COVER-BATTERY 1

MAH59-01183D MICROPHONE ASSY MIC 1

A6003-001499 SCREW-TAP TITE BWH 3 * 8 SILVER 4

B6002-000126 SCREW-TAPPING FH 3 * 10 BLK 2

CAH60-10020D SCREW-TAP TITE RH 2.6 * 8 YEL 5

D6003-000276 SCREW-TAP TITE BH 3 * 10 YEL 17

EAH60-10108A SCREW-TAP TITE BWH 3 * 10 (W10) 1

F6002-000398 SCREW-TAP TITE BH 3 * 6 YEL 24

GAH60-00014A SCREW-TAP TITE TH 4 * 6 YEL 4

HAH60-00025A SCREW-TAP TITE BH 3 * 10 SILVER 19

J6003-001486 SCREW-TAP TITE BH 3 * 5 SILVER 9

No. Code No. Description Specification Q’ty Remark

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2-52-5Samsung Electronics 2-5

2-2 DVD MECHA Exploded View and Parts list

No. Code No. Description ; Specification

AH59-01153A DECK-MECHA ASS’Y CMS-SD100

1AH61-01293A BASE-MAIN ABS BLK

2AH63-00535A TRAY-DISC ABS D/GRAY

3AH66-00214A LEVER-LIFT ABS+GF20%

4AH66-00215A PULLEY-MOTOR POM WHT

5AH66-00216A GEAR-PULLEY TPE WHT

6AH66-00217A GEAR-TRAY POM WHT

7AH61-01295A CLAMPER-BRKT SECC t0.8

8AH63-00536A CLAMPER-MOLD POM WHT

9AH66-00218A SLIDE-CAM PC WHT

10 AH61-01296A HOLDER-BRACKET SECC t0.8

11 AH31-00035B MOTOR-DC RF-300E-1D390

12 AH41-00560A PCB-SWITCH 43.5 * 32.5

13 AH66-00219A BELT-PULLEY CR 1.2

14 3409-001119 SWITCH-DETECTOR JDS2200

15 AH59-01184A DVD-DECK ASSY CMS-S51PG4

16 6001-001257 SCREW-MACHINE 1.7*3(W4.5)

17 AJ60-10001A SCREW-TAP WASHER 6.8

18 6003-000152 SCREW-TAP 2*10.12

19 AH73-00055A RUBBER-CD SILICON 30

20 0205-001106 GREASE GX-99004

21 0205-001109 GREASE DM-523

22 6003-000283 SCREW TAP 3*8

23 AH02-00038A TAPE 10mm*80mm

24 3809-001451 CABLE-FLAT 60mm 24P

25 3302-001505 MAGNET CHUCK 190 gf

26 AH30-00055A PICK-UP 4P.JST

27 AH39-00495A WIRE-HARNESS UL1007,#28,70mm

28 AH39-00496A WIRE-HARNESS UL1007,#28,65mm

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Samsung Electronics

2-6

2-3 SPEAKER Syetem Composition View



* Center Speaker

* Satellite Speaker

2-3-1 HT-DB750



* SUBWOOFER

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Samsung Electronics 2-7

2-3-2 HT-DB1750

*CENTER SPEAKER

CENTER SPEAKER

* SUBW

SUBWOOFER

OOFER

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Samsung Electronics

2-8

*FR

FRONT SPEAKER

ONT SPEAKER *

* REAR SPEAKER

REAR SPEAKER

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