Table of Contents
Advertisement
6. VIF Adjustment
Detector Adjustment
Overall Waveform
Adjustment
(PAL)
K2B pin-4
(or IC671 pin-1)
IC101 pin-48
No Band(with Jig-B)
Tuner-TP
TP-F
QI 97-Base
Sound Trap Adjustment
(NTSC)
Overall Waveform
Confirmation (NTSC)
Item
—
c
o .-
%
al
c
c
6
—
c
0 .-
.%
-0
c
8
—
K2B pin-4
(or IC671 pin-1)
IC101 pin-48
No Band(with Jig-B)
Tuner-TP
TP-F
Q1 97-Base
DC 15.OV
IF AGC(3.5-4.5V)
Setting Band
Output Probe
Input Probe
DC 12V(with Jig-A)
Sweep ATT
Output Probe
Dumping Resistor
Oscilloscope
Sens.
System
K2B pin-4
(or IC671 pin-1)
ICI 01 pin-48
No Band(with Jig-B)
Tuner-TP
TP-F
Q1 97-Base
K2B pin-4
(or IC671 pin-1)
IC101 pin-48
No Band(with Jig-B)
Tuner-TP
TP-F
Q1 97-Base
40 dB
side b
not used
10OmV/div
PAL (with Jig-A side b)
40 dB
side b
K2E pinl – pin3
10OmV/div
PAL (with Jig-A side b)
20 dB
side b
K2E pinl – pin3
10OmV/div
PAL (with Jig-A side a)
40 dB
side b
K2E pinl – pin3
10OmV/div
NTSC (with Jig-A side b
Adjust P iS 50% * 10VO
Adjust P (38.9MHz) to
and C is 5070 t 10'%.by
be maximum by using
using Tuner Converter
Adjust S(4,5MHZ) to be
T131 .
coil and T1 01.
minimum by using T1 03.
Confirm
P is 4570 f
10VOand C is 65V0 k
10?40
.
Adjustment
a
c
P
s
Waveform
Output Probe
JIG- A(System)
Input Probe
'"'a'rkerTT=h'Jm
m
10KQ
Oscilloscope
"G"
I
!
\.
-'-.
I
MAIN UNIT
~
m
n
2
m
Converter Coil
2
u
6=
s
[C671
IC673
a
CN703
!2
m-
Sound Trap Adj. (NTSC)
Overall Waveform Adj.(PAL)
"–.
[
Y
., .,.,.
:;::.:.:.
:.
,: ;.,.,.,
., .,.:.
l131pJ
y
—
-
~:; ::~:; :::;::
~:
>
"-
'Iyo:wg'
,=,
" -:-
.
Wplrl
IC672
Resist=
–19–
Advertisement
Table of Contents
