Sony FDL-22 - Page 12

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A
B C
D
E
F
G
H
I
A
ELECTRNIC TUNING, VIF, SIF
– A BOARD –
< Component Side > < Conductor Side >
INPUT
CONTROL
AUTO
RETURN
PLUSE WIDTH
SET
SIGNAL
DET
DEFEAT
OUT
BT GENERATOR
BAR DISPLAY
POSITION
ADJUST
CHARGE/
DISCHAGE
INITIAL RESET
COMPARATOR
BAR OUTPUT
BS ADD
BAND
SW
TUNING
CONTROL
BSTOP
5 3 2 4 1 6
AFC
H.P.
M.M.
H.syn
FH
SUD
13 14 15 17
STOP DEF
UP
DN
CHCAL
7 27 8
L/H U/V
23 24
VHA VLA
Vcc 5VBRT
28 BS 30 V OUT 31 U OUT 20 VLP 18 UP 19 VHP 21 CON 22 UA
10
C.S.
12 11
CHAMANU
26
32
26
25
16
9
BTNCNCNCNC
29
GND
A BOARD : IC001 AN5707NFAP
GND (SIF) DC F/B SIF IN Vcc (SIF) GND (VIF) IF IN IF IN Vcc (VIF) RF AGC DELAY RF AGC OUT AGC FILTER II AGC FILTER I
13AUDIO OUT 14E-VDL 15FM DET IN 16LIMITER OUT 17AFT OUT 18VIDEO OUT 19REF COIL 20REF COIL 21AFT COIL 22SYNC SEP IN 23SYNC OUT 24
12
11
10
9 8 7 6 5 4 3 2 1IF AGC ADJ
BUFFER
IF AGC
DET
VIDEO AMPAFT
1st
Amp
AGC
2nd
Amp
VIDEO
DET
SYNC
SEP
FM DET
LIMITER
A BOARD : IC201 M51348AFP
DIODE
*
D001 H-6 6 D002 I-7 4 D601 G-6 3 D602 C-7 6 D603 G-6 3 D604 G-6 3 D605 G-6 3
IC
IC001 B-7 IC201 G-4
TRANSISTOR
*
Q001 G-3 1 Q002 G-2 !™ Q003 H-6 1 Q004 I-6 1 Q006 G-2 !¡ Q007 H-7 1 Q201 G-3 1 Q202 B-5 2 Q203 H-4 1 Q601 C-6 2 Q602 F-5 1 Q603 D-6 2 Q610 C-6 2 VARIABLE RESISTOR
RV001 B-6 RV002 B-6 RV003 B-6 RV004 B-6 RV201 C-4 RV601 C-5
A BOARD