Philips AZ 1080, Руководство по обслуживанию

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7 - 2 7 - 2
Input Frequency Waverange 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
5111 560 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
∆
f =
±
500kHz
V
RF
= 100
µ
V
C
∆
f =
±
30kHz
V
RF
= 100
µ
V
f
o
f
o
max.
symmetric
or
A
1
3
2
∆
f =
±
500kHz
V
RF
= 10
µ
V
A
continuous
wave
V
RF
= 1 mV
or
C
1 2
∆
f =
±
15kHz
V
RF
= 10mV
or
or
1 2
B
∆
f =
±
30kHz
V
RF
as low as
possible
f
o
max.
symmetric
or
max.
Vcc
7101
pin 30
2k2
4k7
220R
100nF
10
IC 7101
220R
100nF
14
IC 7101
repeat
87,5 MHz
1001 E 1
2108 B 5
2118 G 5
5104 D 5
5111
B 1
1104 A 2
2109 B 5
2120 C 6
5105 C 6
5112 B 3
1110 F 6
2110 B 6
2121 E 6
5106 G 3
9018
F 1
2103 D 2
2112 E 5
2122 D 6
5107a F 3
9020 A 2
2104 D 1
2113 D 6
3101 F 6
5107b F 4
9021
A 1
2105 C 2
2115 G 5
5101 C 1
5107c F 4
9027
D 5
2106 C 3
2117 F 6
5102 B 3
5108 G 4
9021
1104
9020
5112
5102
5111
2106
2108 2109
2110
2105
2103 2104
5101
5105
5104
2120
2113
2122
2112
2121
9027
2117
1110
2118
2115
5107c
5107b 5107a
1 3
5106
5108
1
3
9018
1001
2
4
1 3
1 2 3 4 5 6
1 2 3 4 5 6
A
B
C
D
E
F
G
A
B
C
D
E
F
G
TUNER BOARD (ATM-5) - LAYOUT DIAGRAM TUNER ADJUSTMENT TABLE