Philips AZ1050 - Tuner Board - Layout Diagram; Tuner Adjustment Table

33 837
98 - 1 1 - 0 5
33 837
98 - 1 1 - 0 5
1
2
A
C
3
B
Input FrequencyWaverange Input Set tuned to Adjust Measure on Scope / Counter
OSCILLATOR
FM - RF
VCO
AM -RF
AM - IF
FM
87,5 - 108 MHz
MW
525 - 1607 kHz
(530 - 1710 kHz)
1)
87,35 MHz
512 kHz
(520 kHz)
1635 kHz
(1730 kHz)
108,25 MHz
lower band end
upper band end
FM
87,5 - 108 MHz
87,5 MHz
108 MHz
108 MHz 2106 C2
5101
AM
468 kHz
5106
5108
FM 98 MHz 98 MHz
3101
152 ±1 kHz
lower band end
upper band end
2106 C1
2106 C3
5104
5105
MW
560 kHz
1500 kHz
2106 C4
5102560 kHz
1500 kHz
connect pin 24 of
IC 7101 (AM Osc)
with short wire to
ground
1)
for USA /17
see
remark
2)
2)
RC-network serves for damping the IF-filter while adjusting the other one.
A
1 2
1 2
D f = ±500kHz
V
RF
= 100µV
C
D f = ±30kHz
V
RF
= 100µV
f
o
f
o
max.
symmetric
or
A
1
3
2
D f = ±500kHz
V
RF
= 10µV
A
continuous
wave
V
RF
= 1 mV
or
C
1 2
D f = ±15kHz
V
RF
= 10mV
or
or
1 2
B
D f = ±30kHz
V
RF
as low as
possible
f
o
max.
symmetric
or
max.
V
cc
7101
pin 30
2k2
4k7
220R
100nF
10
IC 7101
220R
100nF
14
IC 7101
repeat
TUNER ADJUSTMENT TABLE
87,5 MHz
(ferroceptor coil)
TUNER BOARD - LAYOUT DIAGRAM
6-2 6-2
PCS 104 245
2115
6102
2103
9150
81006101
5
1
0
1
3103
5107a
5106
5107b
5108
2111
2104
2102
2101
2125
2122
7102
2106
9151
3116
3114
5105
5
1
0
4
2105
3101
2110
2109
2123
2117
5110
2119
3102
3110
9102 2116
1101
3109
2118
9101
5107c
3113 2113
3104
3106
2112
2120 2121
2114
2108
3107
A
B
A
B
1 2 3 4
1 2 3 4
1101 A 4
2101 A 1
2102 A 2
2103 A 2
2104 A 2
2105 A 2
2106 A 3
2108 B 3
2109 A 3
2110 B 3
2111 B 3
2112 B 1
2113 B 2
2114 B 1
2115 A 1
2116 B 4
2117 A 4
2118 A 4
2119 B 4
2120 B 1
2121 B 1
2122 B 1
2123 A 2
2125 A 2
3101 B 4
3102 A 4
3103 B 2
3104 B 1
3106 B 1
3107 B 4
3109 A 4
3110 A 4
3113 B 1
3114 A 4
3116 A 4
5101 A 2
5104 B 2
5105 B 3
5106 A 1
5107a A 1
5107b A 1
5107c B 1
5108 A 1
5110 A 4
6101 A 1
6102 A 1
7102 A 4
8100 A 1
9101 B 2
9102 A 4
9150 A 1
9151 B 3
8121
8120
FM RF
FM I F1
FM I F2
AM I F1
AM I F2
2
C2
VARCO
MW OSC
C1 C3
C4
1
GND
TUNER- L
TUNER- R
+
A
(
T
U
N
E
R
)
+A( FM)
DI SCR.
2
5102
FM OSC
FERRI TE ANTENNA
3
1
VCO
THIS TRACK NEED TO CUT (FOR /17 VERSION ONLY)
710 1
A
B
A
B
1 2 3 4
1 2 3 4
7101 A 2