TEST
#2
L DEFLECfiON AMPLIFIER
~
re
the
vol1age
on
U102
. These voltages
~
be
: pin 6greater
than
+ 2.4 volts; pins 2, 3,
less than
+.
8 volts.
~~L-
~~
or
0118
incorrectly
installed
or
faulty.
the
VERTICAL
DC
BAL
control
to
obtain 0 volt
~
,.
~·_,.,tho
d•a;o
(~"
6)
ot
0101
aod
~
~
~
e
power
off
and
short
the
base
of
0113tothe
bf
0114.
Tum
the
Oscilloscope
on.
v
8>
Ollector
voltages
of
0115
and
0116
are the
-~
ithe
power
off
and
remove
the
short connected
~
n
0113
and
0114
.
Then
short the base of
othebaseof0112.
Turn
the
Oscilloscope
on
.
\/
8>
r lector
voltages
of
0115
and
0116
are the
<zE.?
the
power
off
and
remove
the
short connected
een 0111
and
0112
.
Then
short the base of
I tothebaseof0105.
Turn
the
Oscilloscope on.
!
v
e
ollector voltages
of
0115
and
0116
are the
~E~
he power
off
and remove the short connected
en 0104
and
0105
.
Then
short pin 4
to
pin 8
of
Turn
the
Oscilloscope on.
v
~
lllector voltages
of
0115
and
0116
are the
~
U102 incorrectly installed
or
faulty. Vertical Mode
switch SW4 incorrectly wired
or
faulty.
Measure
the
pin 8
of
U101. This voltage should
be
less than + .8
vo
lt.
0101
faulty. Check associated circuitry (soldering,
incorrect parts values).
0113
or
0114
incorrectly installed
or
faulty. Check
associated circuitry (soldering,
incorrect parts
values).
0111
or
0112
incorrectly installed
or
faulty. Check
associated
circuitry
(soldering, incorrect parts
values).
0104
or
0105
incorrectly installed
or
faulty. Check
associated
circuitry (soldering,
incorrect
parts
values).
0102
faulty. Check associated circuitry (soldering,
incorrect parts values).
U 1
01
incorrectly installed on faulty. Check D 115 an
switch SW4.
~-------
Page 29
To Next Page
Loading...
