ADJUSTMENT
INSTRUCTIONS
VIF Adjustment
'—
L
tern
1st wave form
Overall waveform
DC 15.5v
R364(IC351 -1 pin)
R364(IC351 -1 pin)
DC5-8V
TP-C(C115+)
TP-C(C115+)
5 ~
Output
probe
.—
TU-TP
TU-TP
Input probe
:
TP - L(R1 20)
TP - L(R1 20)
g
DC 5V
R700(Q700-
E)
R700(Q700-
E)
o
DC 12V(Jig- A)
Q293 - Base
Q293- Base
DC 9V(Jig B)
lC710-pin
3 and 4
lC710-pin
3 and 4
Out put probe
b-side
b-side
SYSTEM
PAL(Jig - A) - side b
PAL(Jig-A)
-side b
c
Oscilloscope
-
10OmV/div
o
10OmV/div
.—
sensitivity
100 !2
.—
g
Sweep ATT.
B
20 dB
20 dB
u
Damping resister
not used
TP-D
~
,, ,:
Setting Band
none
none
ADJUSTMENT
Adjust T121 for 38.9 MHz
By using tuner converter coil and T1 01,
maximum.
adjust the waveform as shown below.
38,9MHZ
A
3
P=40 t
10
Yo
Waveform
447.H~25'!!
d>
A'
S
A
MAIN UNIT
{mm
I
DC 5V
SELECT
UP
-N
~fi.~
—1
%zii!ii!{
l!'-!!di!l"/
T31 f
CONVERTER
TRANS
J[
~
I:;W
AJ 1
IQ
00
"A"' " _ ~ w,uN,T
0143
-
-
1
J
KO
=
AUOIO IN
VIDEO IN
A3 -
B/VIF
%=EZ
+!!!rl"""'''
I
rmut
Proba
overall
Wadoml Adj.
\
Tur'ier Cmwter
Coil
OJlwt
PmLu
+ir7FY'"
—6—
