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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
T BOARD : IC201 M51348AFP
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
T BOARD : IC001 AN5707NFAP
123456789
A
B
C
D
E
T
ELECTRONIC TUNER,
VIF, SIF
– T BOARD –
< Component Side > < Conductor Side >
NOTE:
•
: Pattern from the side which enables seeing.
•
: Pattern of the rear side.
DIODE
*
D001 E-3 9
D002 D-3 7
IC
IC001 E-3
IC201 C-6
TRANSISTOR
*
Q001 D-7 1
Q002 D-7 !•
Q003 D-6 1
Q004 E-6 1
Q006 C-7 !¶
Q007 D-3 1
Q201 C-7 1
Q202 B-6 1
Q203 D-6 1
VARIABLE
RESISTOR
RV001 D-3
RV002 D-3
RV004 D-4
RV201 C-3
T BOARD
3.4Vp-p (H)
• T BOARD WAVEFORMS
1
3.7Vp-p (H)
2
0.9Vp-p (H)
3