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- Alignment and Adjustments
- Exploded Views and Parts List
- Electrical Parts List
- Block Diagrams
- PCB Diagrams
- Wiring Diagram
- Schematic Diagrams
- IC Block Diagrams
- Troubleshooting
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1. Alignment and Adjustments
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
Oscilloscope
Input
Distortion Meter
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(20K�) 28 dB(±2dB)
28 dB FM Antenna SET FM S.S.G GND FM IN 10 k�
* Adjustment Location of Tuner PCB
ITEAM
Received FREQ. Adjustment point
Adjust SVR1 so that �TUNED� of FLT is lighted (Figure 1-2) LW OSC Adjustment 146~290 KHz LO 2~7.0±0.5V LW RF Adjustment 150 KHz LA
Maximum Output(Fig1-4)
AM(MW) OSC Adjustment 522~1611 KHz MO 1~7.0±0.5V
AM(MW) RF Adjustment 594 KHz MA
Maximum Output(Fig1-4)
*Adjust FM S.S.G level to 28dB Figure1-2 FM Auto Search Level Adjustment
Output
AM(MW) I.F Adjustment SSG FREQ. Frequency Adjustment point 450 kHz 522 kHz AM IF
OUTPUT AM SSG 450KHZ
60cm AM IF AM ANT IN Speaker Terminal
Maximum output (Figure 1-3)
INPUT
OUTPUT
VTVM
Oscilloscope
Figure1-3 AM I.F Adjustment
Fig 1-4 OSC Voltage
Samsung Electronics 1-1
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