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8-6-2.
Character Position Adjustment (TT-20 Board)
Mode
Power on
Signal
Color
bar
Measurement Point
LCD
screen
Measuring
Instrument
Adjusting
Element
CV351
Black frame on
horizontal
Specified Value
center of screen.
Adjusting method :
1)
Connect
the
TT check
land
(Fig.
B-43.
@) and
TP303
(GND) with a
jumper
wire.
2)
Press the
CLOCK
SET button
of the
LCD
block
and confirm
that the black frame and the
MO :
00"
indication
appear
on the
LCD screen
(adjust the
LCD block BRIGHT
VR so
that the black
frame
can
be
seen clearly).
3)
Adjust CV351 so
that the black frame gets on
the horizontal
center of the
screen.
4)
Press
the
LCD block
NEXT button
twice to
clear
the black
frame.
5)
Remove the jumper
wire
attached in step 1).
LCD screen
0: 00
Adjust so that the black frame gets on
the horizontal center of the
screen.
Fig. 8-44.
8-6--3. Channel Display Position Adjustment
(TT-20
Board)
Mode
Power on
Signal
VHF 12
channel
Measurement Point
Measuring
Instrument
LCD
screen
Adjusting
Element
RV372
Specified Value
Cursor
indicating the
received
channel
Adjusting
method
:
1)
Set
the INPUT
SELECT switch (SlOl on
the
SV-35 board) to the TUNER
position.
2)
Receive the
VHF
12
channel.
3)
While
pressing the INDICATOR button
(S301 on
the TT-20
board),
move the
green cursor
to the
channel 12 position with RV372.
4)
Select
channel 1
and confirm
that the green
cursor
is
displayed on the channel
1 position.
VHF 2 34
5 8 10
UHF 21
30
40
50 60
12
CH
69
CH
I
12
Lr
~
Fig. 8-45.
Move the green cursor
to the channel
12 position.
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169
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