Am(Mw),Lw,Sw1,Sw2 Adjustment - Samsung MAX-S720 Service Manual

Alignment and Adjustments

1-1-2 AM(MW),LW,SW1,SW2 Adjustment

Circuit Measuring Instrument & Step
to be Arrangement
Adjusted
1
OSC Connect AM signal
generator to loop
antenna,VTVM AND
oscilloscope 2
(Fig 1-3)
AM
(MW)
RF " 1
" 1
INTER FREQ
OSC Fig 1-3 1
LW 2
RF 1
OSC Fig 1-3 1
SW1 2
RF 1
OSC Fig 1-3 1
SW2 2
RF 1
1-2
S.S.G Radio dial Adjusting Adjust for
Frequency Setting Point
522KHz 522KHz MW OSC Adjust for
1.0V±0.1V at the low.
(IR117)
1611KHz 1611KHz MW OSC
Check for 7.0V±1.0V at the high.
(IR117)
594KHz 594KHz MW ANT Maximum out
455KHz 522KHz TL2 Maximum out
146KHz LW OSC Adjust for
2.0V±0.1V at the low.
290KHz LW OSC
Check for 7.0V±1.0V at the high.
150KHz 150KHz LW ANT Maximum out
2.3MHz SW1 OSC Adjust for
1.0V±0.1V at the low.
7.3MHz -
Check for 8.5V±1.0V at the high.
3.5MHz 3.5MHz SW1 ANT Maximum out
9.5MHz SW2 OSC Adjust for
1.5V±0.1V at the low.
26.1MHz -
Check for 8.0V±1.0V at the high.
10MHz 10MHz SW2 ANT Maximum out
Samsung Electronics