Alignment and Adjustments
1-2
Samsung Electronics
1-2. Tuner: MAXZB450
FM THD Adjustment
Output
Output
28 dB(
±2
dB)
60 dB
Minumum Distortion (0.4% below)
(Figure 1-1)
SSG FREQ.
Adjustment
point
(FM DET)
98 MHz
FM DETECTOR COIL
FM Search Level Adjustment
Adjust SVR1 so that “TUNED” of FLT is
lighted (Figure 1-2)
Figure1-2 FM Auto Search Level Adjustment
*Adjust FM S.S.G level to 28dB
Figure1-1 IF CENTER and THD Adjustment
SSG FREQ.
Adjustment
point
(SVR1)
98 MHz
BEACON
SENSITIVITY
SEMI-VR(10K
½
)
FM S.S.G
GND
28 dB
FM S.S.G
Output
GND
Speaker
Terminal
FM
Antenna
Terminal
Distortion Meter
Input
SET
Input
output
Oscilloscope
FM IN
FM Antenna
SET
20 k
½
OUTPUT
AM SSG
450KHZ
INPUT
AM ANT
IN
Speaker Terminal
60cm
AM IF
VTVM
Oscilloscope
AM(MW) I.F Adjustment
Maximum output (Figure 1-3)
SSG FREQ.
Frequency
Adjustment
point
450 kHz
522 kHz
AM IF
Figure1-3 AM I.F Adjustment
OUTPUT
* Adjustment Location of Tuner PCB
TESTER
MAIN
PCB
VT
GND
Fig 1-4 OSC Voltage
AM(MW)
OSC
Output
1~7.0
±0.5
V
Received FREQ.
Adjustment
point
522~1611 KHz
MO
AM(MW)
RF
ITEAM
594 KHz
MA
Maximum
Output
(Fig1-4)
LW
OSC
146~290 KHz
LO
2~7.0
±0.5
V
AM(MW)
RF
150 KHz
LA
Maximum
Output
(Fig1-4)
SW1
OSC
2.3~7.3 MHz
LO
1~8V
±1
V
SW1
RF
3.5MHz
MA
Maximum
Output
(Fig1-4)
SW2
OSC
9.5~26.1MHz
LO
SW2
RF
10MHz
MA
Maximum
Output
(Fig1-4)
1~8V
±1
V
Summary of Contents for MAX-B420
Page 6: ...Samsung Electronics 6 1 6 Wiring Diagram MAX B420 ...
Page 7: ...6 2 Samsung Electronics 6 1 Wiring Diagram MAX B450 ZB450 ...
Page 8: ...Samsung Electronics 5 1 5 Printed Circuit Board Diagram 5 1 MAIN MAX B420 ...
Page 9: ...5 2 Samsung Electronics 5 2 MAIN MAX B450 ZB450 ...
Page 10: ...Samsung Electronics 5 3 5 3 FRONT MAX B420 ...
Page 11: ...5 4 Samsung Electronics 5 4 FRONT MAX B450 ZB450 ...
Page 12: ...Samsung Electronics 5 5 5 5 TUNER 2BAND ...
Page 13: ...5 6 Samsung Electronics 5 6 CD MP3 CW106 ...
Page 14: ...Samsung Electronics 4 1 4 Block Diagram 4 1 MAIN MAX B420 ...
Page 15: ...4 2 Samsung Electronics 4 2 MAIN MAX B450 ZB450 ...
Page 16: ...Samsung Electronics 4 3 4 3 CD ...
Page 31: ...Samsung Electronics 2 3 2 3 Total Exploded View and Parts List ...
Page 36: ...Samsung Electronics 7 1 7 Schematic Diagram 7 1 CD MP3 Parts ...
Page 37: ...7 2 Samsung Electronics 7 2 MAIN Part MAX B420 ...
Page 38: ...Samsung Electronics 7 3 7 3 MAIN Part MAX B450 ZB450 ...
Page 39: ...7 4 Samsung Electronics 7 4 FRONT MAX B420 ...
Page 40: ...Samsung Electronics 7 5 7 5 FRONT MAX B450 ZB450 ...
Page 41: ...7 6 Samsung Electronics 7 6 TUNER EURO ...
Page 42: ...Samsung Electronics 7 7 7 7 TUNER RUSIA ...
Page 43: ...7 8 Samsung Electronics 7 8 TUNER 2BAND ...
Page 44: ...ELECTRONICS Samsung Electronics Co Ltd APR 2002 Printed in Korea Code no AH68 01107K ...
