Samsung S2000 - Page 6

1-2 Samsung Electronics
1-1-1 Test Equipment
1-1-2 Pre-Adjustment
1-1-3 MW(AM)/LW/SW 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 (3.2½)
7. DC voltmeter
1. Check the source voltage
2. Press TUNER/BAND to select the AM(MW) function.
3. Set the EQ/P.SOUND control to OFF position.
4. Set the volume control to approximaterly 50mw.
AM(MW)-OSC
1
2
4
5
3
594 KHz
170 KHz
Figure 1-6 MW(AM)/LW/SW Adjustment
TUNER
PCB
TP3
GND
Input
DC Voltmeter
2.3~7.3MHz
-
3.5MHz
3.5MHz
170 KHz
-
522~1611 KHz
146~290 KHz
MW OSC
1.0( ±0.1V : Adj.) ~ 7.0V( ±0.1V : Check)
Maximum output
Remark
Low Cover(Adj.)~High Cover(Check)
FREQ.
Setting
Adjust.
Point
SSG.
FREQ.
Item
Step
Alignment and Adjustments
MW
LW
SW
6
AM(MW)-RF
-
LW-OSC
LW-RF
SW1-OSC
SW1-RF
SW2-OSC
SW2-RF
7
8
-
10MHz
10MHz
9.5~26.1 MHz
594 KHz
MW ANT
LW OSC
LW ANT
SW1 OSC
SW1 ANT
SW2 OSC
SW2 ANT
Maximum output
Maximum output
Maximum output
1.0( ±0.1V : Adj.) ~ 7.0V( ±0.1V : Check)
1.0( ±0.1V : Adj.) ~ 6.5V( ±0.5V : Check)
1.0( ±0.1V : Adj.) ~ 6.5V( ±0.5V : Check)