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ADJUSTMENT
INSTRUCTIONS
G
VIFAdjustment
tern
1st wave form
Overall waveform
DC 15.5v
R364(IC351 -1 pin)
R364(IC351 -1 pin)
.
DC 5-8V
TP-C(C115+)
TP-C(C115+)
g
Output
probe
.—
TU - TP
TU - TP
g
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 (Note
1)
Q293- Base (Note 1)
DC 9V(JigB)
lC710-pin
3 and 4
IC71 O- 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
lwLl
.=
g
Sweep ATT.
B
...........
20 dB
20 dB
o
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.
Waveform
A"z
&~
/
A
r
Icml
EIh
SWSl
SEIWCE
W
I
L2S2
I
nil
(m
VRZ1l
!
J' d-l
1UE4
----- ———-
..4
{1
-~
w
~
SUB SRk3HT
r
al
Y
Gz711
gsi
clm
m'"
I
1
VIF SIF
i
la
1
CONVERTER
TR4NS
-
[FJot%l)x
Note 1: PAL only model doss not
have Q293 (switching TR.).
This connection
Is not necessary
for PAL only model.
=l=!rii-LLO
but
Prabs
Ovedt Wewfoml A@.
nawrcuuener
cdl
/
XE?ZE'D
—6—
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