SAMSUNG MAX-K15, MAX-K17 Alignment and Adjustments

1. Alignment and Adjustments

1-1 Instrument

Samsung Electronics 1-1

Fig 1-1 Location of Adjustment Point

1-1-1 Test Equipment

1-1-2 Pre-Adjustment

1. AM/FM Standard Signal Generator (S.S.G)

- AM : 400Hz, 30% MOD - FM : 1KHz , 40KHz(Deviation)

2. Oscilloscope

3. VTVM

4. Frequency counter

5. Loop antenna

6. Dummy load (4Ω)

7. DC voltmeter

8. SW Dummy ANT

9. FM Stereo Modulator

10. FM/AM IF Generator : 10.7MHz,455kHz

1. Check the source voltage

2. Select desired Band and Function.

3. Set the SURROUND control to off position.

4. Set volume control to approximatly 50mW(4Ω)

1-2 Tuner Section

1-2-1 FM Adjustment(T-BAND, OIRT-BAND :OPTION)

Circuit Measuring Instrument & Step S.S.G Radio dial Adjusting Adjust

to be Arrangement Frequency Setting Point for

Adjusted

FM OSC Aduust for 1.8V±0.05V at the low.

T-BAND

87.5MHz 87.5MHz COIL(TL2)

Check for 9.0V±0.2V at the high.

Frequency Connect FM signal ATT:60dB (IR152)
coverage generator to loop

antenna,VTVM AND OIRT FM OSC Aduust for 1.8±0.05V at the low.

FM oscilloscope(Fig 1-2) ATT:60dB 65MHz 65MHz COIL(TL2) Check for 9.0V±0.2V at the high.

(IR152)

DET COIL “ - FREQ: 90MHz 90MHz TL5 Aduust for 1.2V±0.02V at the

ATT: 60dB location NO of IC006(104M).

IF COIL “ - FREQ: 90MHz 90MHz TL4 Aduust for sine wave closely

ATT: 18dB

1-2 Samsung Electronics

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

Fig 1-3

Fig 1-2

Circuit Measuring Instrument & Step S.S.G Radio dial Adjusting Adjust for
to be Arrangement Frequency Setting Point
Adjusted

1 522KHz 522KHz TL11 Aduust for 1.0V±0.1V at the low.

OSC Connect AM signal (IR117)

generator to loop
antenna,VTVM AND
oscilloscope 2 1611KHz 1611KHz -

Check for 7.0V±1.0V at the high.

(Fig 1-3) (IR117)
AM
(MW)

RF “ 1 594KHz 594KHz TL10 Maximum out

DET “ 1 594KHz 594KHz - Check for 1.2V±0.03V at the location NO

ATT:60dB of IC006(104M) after short-circuit IC1(0.47u).

INTER FREQ

“ 1 455KHz 522KHz TL3 Maximum out

OSC Fig 1-3 1 146KHz TL6 Aduust for

2.0V±0.1V at the low.

LW 2 290KHz -

Check for 7.0V±1.0V at the high.

RF 1 150KHz 150KHz TL9 Maximum out

OSC Fig 1-3 1 2.3MHz TL4 Aduust for 1.0V±0.1V at the low.

SW1 2 7.3MHz -

Check for 8.5V±1.0V at the high.

RF 1 3.5MHz 3.5MHz TL8 Maximum out

OSC Fig 1-3 1 9.5MHz TL3 Aduust for 1.5V±0.1V at the low.

SW2 2 26.1MHz - Check for 8.0V±1.0V at the high.

RF 1 10MHz 10MHz TL5 Maximum out

AM SIGNAL
GENERATOR

OUTPUT
GND

FM ANTENA
CONNECTING
POINT

SET

IC006
(104M)

TESTER

IR152
(56K)

TESTER

SPEAKER
OUTPUT
CONNECTING
POINT

VTVM

INPUT

OSCILLOSCOPE

OUTPUT

VTVM OSCILLOSCOPE

AM SIGNAL

IR117
(4.7K)

SPEAKER
OUTPUT
CONNECTING
POINT

TESTER

IN

GND

DUMMY LOAD
(4 ohm)

OUT

GND

GENERATOR

LOOP
ANTENNA

60 cm

AM
ANTENA

IC006
(104M)

TESTER

SET