Alignment And Adjustments; Tuner - Samsung SCM-6700 Service Manual

4. Alignment and Adjustments

4-1 Tuner

CSVR801
CCON801
KT431
Samsung Electronics
IT1
ISVR2
ISVR1
IT2
OL2
OT1 OT2
OCT3
OCT2 OCT4
OCT1
OL1
TCON1
FM T.H.D Adjustment
SSG FREQ. 98MHz
Adjustment
point FM DETECTOR COIL
(IT1)
Minumum output(Figure 4-1)
FM Search Level Adjustment
SSG FREQ. 98MHz
Adjustment
point SEMI-VR(50KB)
(ISVR1)
"TUNED" is shown on LCD(Figure 4-2)
FM Stereo Adjustment
SSG FREQ. 98MHz
Adjustment
point SEMI-VR(5KB)
(ISVR2)
L-CH/R-CH : Maximum(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
30dB FM Antenna
75Ω
SET
Dummy
GND
FM IN
FM SSG
50 kB
Figure 4-2 FM Auto Search Level Adjustment
Oscilloscope
EXT FM antenna
50Ω
FM
SET
Dummy
SSG
GND
Speaker
terminal
OUT
5KB
Stereo
Modulator
(Pilot 10%)
Figure 4-3
FM Stereo Separation Adjustment
VTVM
4-1