Advertisement
TUNER
IF-16
(VIF, SIF, AFT, AGC
BAND
SELECTOR),
TU-23
(TUNER)
BOARDS
SCHEMATIC
DIAGRAM
— Ref. No. IF-16 BOARD : 3000 series, TU-23 BOARD : 3500 series —
ANTENNA TERMINAL
&
ae
_
VHF IN
UHF IN
cKJ00! fir wy
TOMER
IF ouT
@ ©
C-O
vie gee
cNJOO1
——_9—0
>
uot
|
i
0,022
Caen a es
a
ae
ae
eae
| |
nee
[|
505
D003 1SI555
9003
D004 1S1555
RO
CP)
2802785
D008 11555
Us
R026. 5
0004
me
Or)
252785
BAND SW H
=
=H
fe
—_
=
(5)
Gan
TUNER
1001
LSk
ie
9006 252785
BAND SW U
F
a
Do!9
0
Ql! 2sciBs0A
|
An, oe
1 aE
(4)
1002
eed
Be
k
PCE TAY
.
ZENER
(2W)
| |
RVO02 4.7k
Rozz Ik dH
DOO!
—1S1555
0002
1SI555
0006
181555
p007
181555
ae
TS
RO4
l
100k
.@)
e)
0
e)
@)
©)
oO
eo)
eo)
'e)
oO
re)
ce)
.@)
@)
0
©)
.@)
©)
@)
.e)
e)
e)
'e)
re) a,
'@) "~%
Rae
ee
ee
hs
eo
ee
hal
a
i k a
ne}
LE]
Let
eT
Gel
Ley
tbr
bf
ky
ie?
ie?
Ley
br
a
RV904
RV906
RV908
RV909
,
PSOOI
QO
fe
9
Q
fe
a
Q
Q
Q
Q
je
fe
Q
PRESETTER!
i
Cana ae rs
ees
a
Ene
Geet RE
ee
ES
— —S90!___ $902
04.
___ $905
$906
S907 =
$908
8909
S910
SN
s9l2
$913
39
A
B
C
D
E
F
6
H
1
J
K
t
M
N
-_
—_
po
-
3-31
Q001
2sce785
AUDIO MUTE
S901—S914
| BAND SELECT SWITCH
RVQOI-RV9I4 > TUNING
SOOI- SOI4 : CHANNEL
SELECT SWITCH
(ir
ek
*
no mark :
ROS7
4.7
1c001
SIF VIF
Q002
VIDEO AMP
co23
L008
120p
18 yH
: Can not be measured.
Set the band select switch to "H"
Q013
2sC2785
2SAl048
VIDEO AMP
Cx885
ROI4
47k
position
and channel
select button to "a" position
and
AFT
switch
to 'on' position,
3-32
L004 I2yH
6
Q014
2SA1048
SWITCH
co22
22p
coz4
ROI2 0.47 4
33k
50V
0.3
col4
cg ey
aes 0.001
180
100k
0008
Q010
0003
9007
9005
Re
2SC1890A
252785
2501048
25K43-2
-2SC2785
tt
NEON SW
MUTE ORIVE
AFT DEFEAT
AFT MIX
AFT DRIVE
I
4
CN2 (WHT)
[vin0EO OUTIY)
| |
VIDEO
OUTIX) | | TO VA-I
[auo1o
out iy) | | BQARP
Aupio
outTix) | |
CNt WHT)
[sno
TO TP-2
BOARD
IF =16 soard
Advertisement
