Alignment And Adjustments - Samsung MM-26 Service Manual

4. Alignment and Adjustments

4-1 Tuner
Samsung Electronics
FM T.H.D Adjustment
SSG FREQ. 98MHz
Adjustment
point FM DETECTOR COIL
(IFT2))
Minumum output(Figure 4-1)
FM Stereo Adjustment
SSG FREQ. 98MHz
Adjustment
point SEMI-VR(5KB)
(ISVR1)
"TUNED" is shown on LCD (Figure 4-2)
AM I.F Adjustment
SSG FREQ. 450KHz
SET FREQ. 522KHz
Adjustment
point AM IF COIL
(IFT1)
"TUNED" is shown on LCD(Figure 4-3)
AM Search Level Adjustment
SSG FREQ. 999KHz
Adjustment
point SEMI-VR(20KB)
(ISVR2)
"TUNED" is shown on LCD(Figure 4-3)
AM Loop
antenna jack Speaker
AM SSG
Test Loop AM
Antenna Antenna
60 cm
52dB
Figure 4-3
AM Auto Search Level Adjustment
SET
FM
Output
Antenna
GND
Terminal
Oscilloscope
FM SSG
Input
Speaker
Terminal
Output
Input
Distortion Meter
Figure 4-1 IF CENTER and T.H.D Adjustment
20dB FM Antenna
75Ω
SET
Dummy
GND
FM IN
5 kB
Figure 4-2
FM Stereo Separation Adjustment
*** Remark ***
After adjusting the AM, be sure to
adjust the FM.
Terminal
IN
OUT
SET
GND
Oscilloscope
Electronic
20K
Voltmeter
4-1