Samsung MAX-N25 Service Manual page 4

1-1-2 AM(MW),LW,SW1,SW2 Adjustment
Circuit Measuring Instrument & Step
to be Arrangement
Adjusted
OSC Connect AM signal
generator to loop
antenna,VTVM AND
oscilloscope
(Fig 1-3)
AM
(MW)
RF "
DET "
"
INTER FREQ
OSC Fig 1-3
LW
RF
OSC Fig 1-3
SW1
RF
OSC Fig 1-3
SW2
RF
2-2
S.S.G Radio dial Adjusting Adjust for
Frequency Setting Point
1 522KHz 522KHz TL11 Aduust for
(IR117)
2 1611KHz 1611KHz -
Check for 7.0V±1.0V at the high.
(IR117)
1 594KHz 594KHz TL10 Maximum out
1 594KHz 594KHz -
Check for 1.2V±0.03V at the location NO
ATT:60dB
of IC006(104M) after short-circuit IC1(0.47u).
1 455KHz 522KHz IFT1 Maximum out
1 146KHz TL6 Aduust for
2 290KHz -
Check for 7.0V±1.0V at the high.
1 150KHz 150KHz TL9 Maximum out
1 2.3MHz TL4 Aduust for
2 7.3MHz -
Check for 8.5V±1.0V at the high.
1 3.5MHz 3.5MHz TL8 Maximum out
1 9.5MHz TL3 Aduust for
2 26.1MHz -
Check for 8.0V±1.0V at the high.
1 10MHz 10MHz TL5 Maximum out
1.0V±0.1V at the low.
2.0V±0.1V at the low.
1.0V±0.1V at the low.
1.5V±0.1V at the low.
Samsung Electronics