Samsung HT-DB750 Manuel utilisateur
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 -
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
FM
Antenna
Terminal
Distortion Meter
Input
SET
Input
output
Oscilloscope
FM IN
FM Antenna
SET
10 kΩ
OUTPUT
AM SSG
450KHZ
INPUT
AM ANT
IN
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
MO
AM(MW) RF
Adjustment
ITEAM
594 KHz
MA
Maximum
Output(Fig1-4)
LW OSC
Adjustment
146~290 KHz
LO
2~7.0±0.5V
LW RF
Adjustment
150 KHz
LA
Maximum
Output(Fig1-4)
Samsung Electronics 2-1
2.Exploded Views and Parts List
2-1-1 Total Exploded View
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
Samsung Electronics 2-3
2-1-2 Total Exploded View
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
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
Samsung Electronics
2-6
2-3 SPEAKER Syetem Composition View
* Center Speaker
* Satellite Speaker
2-3-1 HT-DB750
* SUBWOOFER
Samsung Electronics 2-7
2-3-2 HT-DB1750
*
*CENTER SPEAKER
CENTER SPEAKER
*
* SUBW
SUBWOOFER
OOFER
Samsung Electronics
2-8
*
*FR
FRONT SPEAKER
ONT SPEAKER *
* REAR SPEAKER
REAR SPEAKER
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