Dual CT 1540 RC Serviceanleitung Seite 13

IF IFOUT QUAD.IN REF BIAS
1 2 3 8 9 10 7
е; —— —
rature AFC
tor
amp.
Y
1.1F 2.1F 3.IF Quadrature Audio
detector detector detector
CA 3089 level amp.
— 2- detector
c4
Delayed IF level V stab.
Mute contr. Audio
AGC driver meter driver
driver contr. amp.
5 4 n
IFGND GND
DETECTOR SWITCH
IN V+
FILTER
12 16 9 10
LOOP
FILTER LED
3 1 7
STEREO TIME
CONST.
15
76 kHz TO
38 kHz divider
38 kHz TO
19 kHz quadra-
ture divider
Pilot amplitu-
de detector
Stereo switch
lamp driver
38kHz TO
19 kHz in
phase divider
Stereo de-
modulator
Controled
RF pre
stage
15 14 13
D6
15
O
D5
13
O
INHIBIT
12
a5
11
CD4502B
buff
CONTROL
35 output
buffers
35 latches
ENABLE
л
SER.DATA 22
ск 1 >
35-Bit shift register
Reset
MM 5450
O
3 6
LEFT RIGHT
DE EMPHASIS
n
Oscillator
Output
buffer
5
OUT
RIGHT
10
TDA 1072
Standby
switch
4 ^
OUT TEST
LEFT 19 kHz
[
&
11
O
CD 4014
Controled
IF amp.
OUT LED
7 8 4
VREF. VREF. RLOW
OUT ADJ
13
O O O
1
2 8 4
5 6
8 06 а
4 3 2
PAR BUF BUF
PAR IN
IN OUT OUT
FREQ
COMP. V+ VC VOUT VZ
14
13 12
11
LIMIT SENSE
COURRENT
V+
RESETB 028
Q4A
DATAB
Qlg Q3g
CLOCKA
16 15
14 13 12
n 10
9
"82
10
CD 4015
DUAL 4-BIT STATIC
SHIFT REGISTER
1 2 3 4 5 6 7 8
CLOCKg ОЗА ОЛА DATAA
Q48 Q2A RESETA GND