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
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FM THD Adjustment
SSG FREQ.
Adjustment
point
FM DETECTOR COIL
(FM DET)
60 dB
Output
Minimum Distortion (0.4% below)
(Figure 1-1)
FM Search Level Adjustment
SSG FREQ.
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
GND
Terminal
98 MHz
FM S.S.G
Speaker
Terminal
Figure1-1 IF CENTER and THD Adjustment
28 dB
98 MHz
GND
FM S.S.G
Figure1-2 FM Auto Search Level Adjustment
SET
Oscilloscope
Input
output Input
Distortion Meter
FM Antenna
SET
FM IN
10 kΩ
1-1