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BA6109
PRE
DRIVER |
LA123IN
Ir ———————————————————— @——@——O ————————————— 1
I I
| CONSTANT VOLTAGE QUADRATURE I
I CIRCUIT LIMITTER AFC/TUNING (JD
' METER DRIVE I
I IF AMP/LIMITTER I I
®——> OUADRATURE '
IsI 2nd 3rd 4m 5m em I
L._ DETECTION
AF AMP —(:)
———J ______ I
I—l I—I MUTE @
CONTROL
LEVEL LEVEL LEVEL INV. LEVEL DC LEVEL ‘_
DETECT DETECT DETECT AMP DETECT DETECTION
STOP
DRIVE
I
I
I
|
(:9; IF AMP SIGNAL METER
I .
IF Vcc AM OUT IF GND
62
—-— —-- ——- __l
l
l
|
BUF OSC ALC AGC SM DET l
1 I
|
I
I
|
RF MIX I
I
I
___ ___@___ ___ 7 ___o___ ___ ®__J
AM IN RF GNU RF Vcc
SCHEMATIC DIAGRAM FD-7/L, FP-7
NE652
HIGH LEVEL STAGE OUTPUT
HIGH LEVEL STAGE INPUT (2
Ac GROUND HIGH LEVEL STAGE (3
HIGH LEVEL STAGE SIDE CHAIN <4)——-
EQ—
GROUND (5}———
Wk
Low LEVEL STAGE SIDE CHAIN s ,
AC GROUND LOW LEVEL STAGEQ
LOW LEVEL STAGE IN
RECORD OUTPUT
NE654
Record input
RECORD
AMP
MPX—Iiiler inpm +
MPX—filier output
C/B/OFF
Mode BIC/NR OFF
swich inpul
Line oufipul
BUFFER
AMP
Speclrol skewing nelwork
Speciral skewmg network
. switch
I
( Anli-salurmian filler
sw Itch
Playback Input
Anii-sovurolion filler
Ami —sa1u ration Ii Iier
inpul
Record/playbook
swilch inpul
70
[EWER SUPPLY I
|
I
RECORD/PLAY J
SCHEMAIC DIAGRAM FD-7/L, FP-7
® HIGH LEVEL STAGE HIGH PASS FILTER
LOW LEVEL STAGE INTEGRATING FILTER
LOW LEVEL STAGE HIGH PASS FILTER
Inleqroling filter swilch
Iniegrcling filler swiich
Side chain filler switch
I Reference voltage
High level sloqe output J
I9 High level siege main
chain input
18 High level since side
chain inpui
GND 7 Ground
Low level slag: side
chain inpul
IS Low level since main
chain inpui
I4 Record output
3 Vet