Alignment And Adjustments - Samsung HT-DS650 Service Manual

1. Alignment and Adjustments

1. Tuner
* Adjustment Location of Tuner PACK
* AM, LW, SW Band : No Adjustment point
Samsung Electronics
FM THD Adjustment
SSG FREQ.
98 MHz
Adjustment
point
FM DETECTOR COIL
(FM DET)
60 dB
Output
Minimum Distortion (0.4% below)
(Figure 1-1)
FM Search Level Adjustment
SSG FREQ. 98 MHz
Adjustment
BEACON
point
SENSITIVITY
(SVR1) SEMI-VR(20KΩ)
Output 28 dB(±2dB)
Adjust SVR1 so that "TUNED" of FLT is
lighted (Figure 1-2)
*Adjust FM S.S.G level to 28dB
FM
Output
Antenna SET
GND
Terminal
Oscilloscope
FM S.S.G
Input
Speaker
Terminal
output
Distortion Meter
Figure1-1 IF CENTER and THD Adjustment
FM Antenna
28 dB
SET
GND
FM S.S.G FM IN
10 kΩ
Figure1-2 FM Auto Search Level Adjustment
Input
1-1