Samsung MAX-939 - Alignment and Adjustments; 1-1 Tuner Adjustments

OUTPUT
AM SSG
450KHZ
INPUT
AM ANT
IN
Speaker Terminal
60cm
TL2
VTVM Oscilloscope
1. Alignment and Adjustments
1-1 Tuner
Samsung Electronics 1-1
FM THD Adjustment
Output
Output
1kHz 28dB
60 dB
Minumum Distortion (0.3% below)
(Figure 1-2)
SSG FREQ.
Adjustment
point
(TL3)
98 MHz
FM DETECTOR COIL
AM(MW) I.F Adjustment
Maximum output (Figure 1-4)
SSG FREQ.
Frequency
Adjustment
point
(TL2)
450 kHz
522 kHz
AM I.F COIL
FM Search Level Adjustment
Adjust IVR1 so that “TUNED” of FLT is
lighted (Figure 1-3)
4Gain : 20dB(CE standard)
Figure1-3 FM Auto Search Level Adjustment
Figure1-4 AM I.F Adjustment
Figure1-2 IF CENTER and THD Adjustment
SSG FREQ.
Adjustment
point
(TSR1)
98 MHz
BEACON
SENSITIVITY
SEMI-VR(10KΩ)
FM SSG
GND
28 dB
FM SSG
Output
GND
Speaker
Terminal
FM
Antenna
Terminal
Distortion Meter
Input
SET
Input
output
Oscilloscope
FM IN
FM Antenna
SET
TSR1
10KHz
* When adjusting T.H.D., readjust I/F coil on the Tuner Pack.
OUTPUT
Fig1-1. Adjustment location of Tuner Part
Speaker
Terminal
output
Frequency Counter
Figure 1-5
Figure 1-6
In Out
Cassette Deck
Oscilloscope
SET
(GND)
VTVM
V H
SPEAKER
Figure 1-7
Recording /Play head
AZIMUTH control