Alignment and Adjustments
1-4
Samsung Electronics
FM Sensitivity Adjustment
SSG.FREQ.
FREQ.SETTING
ADJUST.POINT
REMARK
90MHZ
90MHZ
L102
MAX. OUTPUT
106MHZ
98MHZ
C161
MAX. OUTPUT
FM Stereo Separation Check
fc
fs
Main
Pilot
Level
Spec
98.0MHZ
1KHZ
53%
10%
66dB
Normal : 25dB Limit : 20dB
Normal : 25dB Limit : 20dB
FM Seek Stop Check
fc
fs
Dev
Level
Spec.
Seek Stop
98MHZ
1KHZ
40KHZ
23-30dB
Output
Output Level
FM ANT.
GND SET
FM SSG OSCILLOSCOPE VTVM
Figure 1-3 FM Stereo Separation AND Seek Stop Ch
eparation AND Seek Stop Ch
eck
AM (MW) Section
AM (MW) Section
AM (MW) IF Adjustment
IF GENERATOR
450KHZ
Frequency
999KHZ
Adjustment Point T102
AM IF COIL
Maximum output (Figure 1-4)
60cm AM ANT
T102
IF GENERATOR
450KHZ SET
OSCILLOSCOPE
Figure 1-4 AM IF Adjustment
MW Tuning Voltage (VT) Check
522KHZ : 0.9V+/-0.1V
Spec.
1611KHZ : 7.25V+/-0.5V
Adjustment
Low(522KHZ) VT Basic , Adjust T105(OSC)
Low(522KHZ) VT Basic , Adjust T105(OSC)
RF Adjustment(Figure
1
Low Frequency(594KHZ), High Frequency(1404KHz),Usable Senc. (S/N 20dB) < 60dB
Low Frequency(594KHZ), High Frequency(1404KHz),Usable Senc. (S/N 20dB) < 60dB
2
Adjust T104(MW ANT), Gain
Adjust T104(MW ANT), Gain Output Max.
3
Adjust C162 Gain Output Max.
60cm AM ANT
AM SSG
450KHZ SET
Speaker terminal
VTVM Oscilloscope
Figure 1-5 MW RF. Adjustment
Seek Stop Check
fc
fs
Dev
Level
Spec.
999KHZ
400 HZ
30%
40-70dB
AM (LW) Section
Tuning Voltage (VT) Check
144KHZ : 1.0V +/- 0.2V
Spec.
290KHZ : 6.0V+/-0.5V
Adjustment
Low (144KHZ) VT
Low (144KHZ) VT Basic , Adjust T106(OSC)
RF Adjustment
1
Low Frequency (170KHZ), High Frequency(270KHz),Usable Senc. (S/N 20dB) < 68dB
Low Frequency (170KHZ), High Frequency(270KHz),Usable Senc. (S/N 20dB) < 68dB
2
Adjust T103 (LW ANT), Gain Output Max.
3
Adjust C183 (LW ANT), Gain Output Max.
Seek Stop Check
fc
fs
Dev
Level
Spec.
212KHZ
400KHZ
30%
40-70dB
Summary of Contents for MM-L2G
Page 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2001 Printed in Korea Code no AH68 20183R ...
Page 3: ...1 1 Samsung Electronics 1 Alignment and Adjustments Only MM L4 L4G 40 1 85 0 05V ...
Page 4: ...Alignment and Adjustments 1 2 Samsung Electronics OPTION LW ...
Page 10: ...Samsung Electronics 2 3 2 3 TOTAL MM L4 L4G 48 1 ...
Page 12: ...Samsung Electronics 2 5 2 4 TOTAL MM L2 L2G 48 1 ...
Page 25: ...Samsung Electronics 4 1 4 Block Diagram 4 1 Main MM L4 ...
Page 26: ...4 2 Samsung Electronics 4 2 Main MM L2 ...
Page 27: ...Samsung Electronics 4 3 4 3 CD MM L4 ...
Page 28: ...4 4 Samsung Electronics 4 4 CD MM L2 ...
Page 29: ...Samsung Electronics 6 1 6 Wiring Diagram 6 1 MM L4 ...
Page 30: ...6 2 Samsung Electronics 6 2 MM L2 ...
Page 32: ...7 2 Samsung Electronics 7 2 FRONT MM L2 ...
Page 33: ...Samsung Electronics 7 3 7 3 CD FRONT MM L4 ...
Page 34: ...7 4 Samsung Electronics 7 4 MAIN POWER MM L2 ...
Page 35: ...Samsung Electronics 7 5 7 5 MAIN POWER MM L4 ...