1-2 Samsung Electronics
1-1-1 Test Equipment
1-1-2 Pre-Adjustment
1-1-3 AM(MW) Adjustment
1. AM Standard Signal Generator (S.S.G) : 400Hz, 30% MOD
2. Oscilloscope
3. VTVM
4. Frequency counter
5. Loop antenna
6. Dummy load (3Ω)
7. DC voltmeter
1. Check the source voltage
2. Press TUNER/BAND to select the AM(MW) function.
3. Set the EQ/S.BASS control to OFF position.
4. Set the volume control to approximaterly 50mw
Intermediate
frequency (IF)
adjustment
AM frequency
coverage
adjustment
AM tracking
adjustment
Figure 1-4
Connect DC voltmeter to AM
VT(OR10) and GND
1
2
4
5
3
Figure 1-5
Figure 1-5
455 KHz
600 KHz
Figure 1-4
SET
60 cm
AM Signal
Generator
Test Loop
Antenna
Speaker
Terminal
VTVM
IN
OUT
GND
Oscilloscope
AM-ANT
Figure 1-5
SET
AM VT(OR10)
GND
Input
DC Voltmeter
600 KHz
L105(BAR ANT)
515 KHz
1400 KHz 1400 KHz TC102
TC103
1650KHz
1650KHz
-
515 KHz
515 KHz
T102(White)
T100(Red)
1.0V
Maximum output
Maximum output
4.6V
Remark
FREQ. Setting
Adjust. PointSSG.FREQ.Item
Step
Connection
Alignment and Adjustments
1-2 Cassette Deck
Dummy Load(3Ω)
1-2-1. Recording BIAS adjustment
1) Connect frequency counter to C402 (See Fig.1-6)and press the Record button.
2) Adjust T400 (BIAS OSC COIL) until frequency counter reads 39.5~40.5KHz.
1-2-2. Tape AZIMUTH adjustment
1) Connect the equipments as per Fig.1-8 to adjust the tape azimuth with
test tape (recorded at 6.3KHz : MTT-113N)
2) Play the test tape after inserting in DECK.
3) Adjust the azimuth ajustment screw of left side of record/play head for maximum
output and for the same channel phase. (see Fig.1-7)
1-2-3. Tape speed adjustment
1) Connect the equipments as shown in Fig.1-8 adjust the tape speed with
test tape (recorded at 3KHz : MTT-111N)
2) Adjust SVR OF MOTOR until frequency counter reads 3KHz±1%.
Fig.1-6 Recording bias adjustment
Fig.1-8
Fig.1-7 Azimuth speed adjustment