Samsung MAX-445 - Alignment and Adjustments; Tuner

4. Alignment and Adjustments
4-1 Tuner
FM T.H.D Adjustment
SSG FREQ. 98MHz
Adjustment
point FM DETECTOR COIL
(IFT2)
Minumum Distortion(Figure 4-1)
FM Search Level Adjustment
SSG FREQ. 98MHz
Adjustment
point SEMI-VR(5KB)
(IVR1)
"TUNED" is shown on FLT(Figure 4-2)
FM
Antenna
Terminal
Speaker
Terminal
Input
Input
Figure 4-1 IF CENTER and T.H.D Adjustment
Figure 4-2 FM Auto Search Level Adjustment
Output
Distortion Meter
Oscilloscope
Oscilloscope
FM SSG
FM SSG
GND
26dB
75Ω
Dummy
FM IN
FM Antenna
SET
5 kΩ
SET
Output
GND
AM(MW) I.F Adjustment
SSG FREQ. 450KHz
Adjustment
point AM I.F COIL
(IFT1)
Maximum output(Figure 4-3)
Figure 4-3 AM I.F Adjustment
AM ANT
60cm
IFT1
IN
AM SSG
450KHZ
Speaker Terminal
INPUT
OUTPUT
OUTPUT
VTVM
4-1Samsung Electronics
SPEAKER JACK
L
R
FM
AM
ANT JACK