SAMSUNG HT-DM155
Instrukcja Serwisowa

Alignment and Adjustments

1-1-2 AM(MW),LW,SW1,SW2 Adjustment
Circuit to be Adjusted Measuring Instrument & Step Arrangement S.S.G Radio dial Adjusting Frequency Setting Point Adjust for

1 OSC Connect AM signal generator to loop antenna,VTVM AND oscilloscope (Fig 1-3)

522KHz

522KHz

MW OSC

Adjust for (IR117)

1.0V±0.1V at the low.

2

1611KHz

1611KHz

MW OSC

Check for 7.0V±1.0V at the high.

(IR117)

AM (MW) RF � 1 594KHz 594KHz MW ANT Maximum out

INTER FREQ

� Fig 1-3

1 1 2

455KHz

522KHz 146KHz 290KHz

TL2 LW OSC LW OSC LW ANT SW1 OSC SW1 ANT SW2 OSC SW2 ANT

Maximum out Adjust for
2.0V±0.1V at the low.

OSC LW RF OSC SW1 RF OSC SW2 RF

Check for 7.0V±1.0V at the high.

1 Fig 1-3 1 2 1 Fig 1-3 1 2 1

150KHz

150KHz 2.3MHz 7.3MHz

Maximum out Adjust for
1.0V±0.1V at the low.

Check for 8.5V±1.0V at the high.

3.5MHz

3.5MHz 9.5MHz 26.1MHz

Maximum out Adjust for
1.5V±0.1V at the low.

Check for 8.0V±1.0V at the high.

10MHz

10MHz

Maximum out

1-2

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