Alignment And Adjustments; Tuner - Samsung MAX-445 Service Manual

4. Alignment and Adjustments

4-1 Tuner

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