Samsung HT-DB120 Service Manual

DVD RECEIVER AMP
HT-DB120
SERVICE
Manual
DVD RECEIVER AMP SYSTEM CONTENTS
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 -

Samsung HT-DB120 Specifications

General

Type	Home Theater System
Total Power Output	1000W
Number of Channels	5.1
DVD Player	Yes
USB Playback	Yes
Bluetooth	No
RMS output power	1000W
USB Port	1
HDMI Output	1
Optical Digital Audio Input	1
Dolby Digital	Yes
DTS	Yes
Karaoke	Yes

Summary

Alignment and Adjustments

1. Tuner Alignment

Covers FM THD, FM Search Level, and AM I.F adjustments for the tuner.

Block Diagrams

4-1 MAIN Part Block Diagram

Overall block diagram of the main system, showing connections between major components.

4-2 DVD Part Block Diagram

Block diagram specific to the DVD drive and its components.

Schematic Diagrams

7-1 MAIN Schematic Diagram

Detailed schematic diagram of the main PCB and power block.

7-2 FRONT Schematic Diagram

Circuit diagram for the front PCB, including VFD, MIC, and headphone sections.

7-3 DSP Schematic Diagram

7-6 DVD PACK (MPEG DECODER Part) Schematic Diagram

Troubleshooting

9-1 Main Unit Troubleshooting

Troubleshooting for power, output, and protection issues in the main unit.

9-2 DVD Servo Troubleshooting

Troubleshooting for DVD servo operations including initial, play, and motor functions.

9-3 DVD MPEG Troubleshooting

Troubleshooting for DVD MPEG functions like initial operation, logo, and audio.