File name SAMSUNG DVD HT-DM150N_155_160.pdfDVD RECEIVER AMP
HT-DM150N HT-DM155 HT-DM160
SERVICE
DVD RECEIVER AMP SYSTEM
Manual
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 -
ELECTRONICS
© Samsung Electronics Co.,Ltd. APR. 2003 Printed in Korea Code no. AH68-01225N
1. Alignment and Adjustments
1-1. Tuner
FM THD Adjustment SSG FREQ. Adjustment point (FM DET) Output 98 MHz FM DETECTOR COIL 60 dB
Output GND FM S.S.G
FM Antenna SET Terminal Input Speaker Terminal output Distortion Meter
Oscilloscope
Input
Minumum Distortion (0.4% below) (Figure 1-1)
Figure1-1 IF CENTER and THD Adjustment
FM Search Level Adjustment SSG FREQ. Adjustment point (SVR1) Output 98 MHz BEACON SENSITIVITY SEMI-VR(10K) 28 dB(±2dB)
20 k 28 dB FM Antenna
SET FM S.S.G GND FM IN
* Adjustment Location of Tuner PCB
Adjust SVR1 (Figure 1-2) *Adjust FM S.S.G level to 28dB
ITEAM
Received FREQ. Adjustment point
AM(MW) OSC Adjustment 522~1611 KHz MO 1~7.0±0.5V
AM(MW) RF Adjustment 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 AM(MW) I.F Adjustment
Maximum Output(Fig1-4)
Figure1-2 FM Auto Search Level Adjustment
60cm AM IF OUTPUT AM SSG 450KHZ
INPUT
Output
SSG FREQ. Frequency Adjustment point
450 kHz 522 kHz AM IF
AM ANT IN
Speaker Terminal
Maximum output (Figure 1-3)
VTVM
OUTPUT
Oscilloscope
Figure1-3 AM I.F Adjustment
Fig 1-4 OSC Voltage
Samsung Electronics 1-1
Alignment and Adjustments
1-1-2 AM(MW),LW,SW1,SW2 Adjustment
Circuit to be Adjusted Measuring Instrument & Step Arrangement S.S.G Radio dial Adjusting Frequency Setting Point Adjust for
1 OSC Connect AM signal generator to loop antenna,VTVM AND oscilloscope (Fig 1-3)
522KHz
522KHz
MW OSC
Adjust for (IR117)
1.0V±0.1V at the low.
2
1611KHz
1611KHz
MW OSC
Check for 7.0V±1.0V at the high.
(IR117)
AM (MW) RF " 1 594KHz 594KHz MW ANT Maximum out
INTER FREQ
" Fig 1-3
1 1 2
455KHz
522KHz 146KHz 290KHz
TL2 LW OSC LW OSC LW ANT SW1 OSC SW1 ANT SW2 OSC SW2 ANT
Maximum out Adjust for
2.0V±0.1V at the low.
OSC LW RF OSC SW1 RF OSC SW2 RF
Check for 7.0V±1.0V at the high.
1 Fig 1-3 1 2 1 Fig 1-3 1 2 1
150KHz
150KHz 2.3MHz 7.3MHz
Maximum out Adjust for
1.0V±0.1V at the low.
Check for 8.5V±1.0V at the high.
3.5MHz
3.5MHz 9.5MHz 26.1MHz
Maximum out Adjust for
1.5V±0.1V at the low.
Check for 8.0V±1.0V at the high.
10MHz
10MHz
Maximum out
1-2
Samsung Electronics
2.Exploded Views and Parts List
2-1-1 Total Exploded View (EXPORT BASIC)
Samsung Electronics
2-1
* Parts List of Total Exploded view (EXPORT BASIC)
No. 1 2 3 4 5 Code No. AH64-02071A AH64-02006B AH64-02072B AH64-02008B AH64-02003B AH64-02003C 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 AH67-00182B AH64-02010A AH64-02009B AH64-01999A AH64-02011B AH67-00183A AH73-00005A AH61-01131A AH63-00388D AH63-0038 |