~-----~~~~~~~-----------~~~
~
945424-9701
,-
- - - - - - - - - - - - -
--
- -
VERTICAL
Q302
VERT.
D12
VIDEO
DISPLAY 15.7KHz
Q308
VERT.
+C401
'=?'4714'"
...L
SOV
I
osc. I I
R320
221<
t~
R306
47
2SV
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RETRACE
CONTROL
®
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R418
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VIDEO
DRIVER
J.0047
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i--------------------------,
P.C.
801\RD
EDGE
CONNECTOR
KEY
CFOIL
SIDEl
@000©®©®00
0 =
DC
VOL
Tl\GE
SOJRCE
0 =
DC
VOL
Tl\GE APPLIED
NOTE: I.
CUSTOMER
SUPPLIED EXTERNAL 0 C
SOURCE
ON
PIN
7
EDGE
CONNECTOR
IMPORTANT:SAFETY
NOTICE.
When
aervlc1nG
thl~
chassis,
uncter
no
clreumstances
sh~uld
the
orlgl-
rial
dellgn be
modtffed
or
altered
wlthoUt
permtaslon
from
the Zenith
Radio
C<>rporatlon.
All components
should
be
replaced
only
with
types
ldenttcal
to
those
In
the
orlQfnal
circuit. Special
components
are
used
to prevent shock
and
fire hazard.
These
critical
components
are
shad-
ed
on
the schematic and
parts
list for
easy
Identification.
Thia circuit diagram may occasionally differ from the actual circuit
used.
This
way,
Implementation of the latest safety and
performance
lmprovtment
changes
Into the set ls not delayed until the
new
MrYlce
literature
18
printed.
YEL/GRN
BLU
R205
=-I
I
47K.
"'10%
l/2H
E204
I
C201
oi
9
J.01
~
R204
C405
J.01
I 1()1(.
*1or.
I I
l/2H
1E203
I
I L
__
_:_
__
J
IMP<>AT
ANT
SAF&n
NOTlCE
Pb~
'X;RADb\TfoN~·
·FIRE
.
OR·,
SHOCK
HAZARD
PREV,ENTION,1
CERTAIN
SPE·
CIAL
OR
REDUNDANT
PARTS.ARE
USED.
USE
I
ONL
V'
EXACT
REPLACDIENTS.
·DO
NOT
Al.TEA
THE
CIRCUIT
OR
DEFEAT
THE
FUSES.
FAILURE
TO
COMPL
V
MAY
BE
UNLAWFUL.
Figure 2-12. CRT Monitor Schematic Diagram, Source 3
(D12 Series)
2-43/2-44
Digital
Systems Division
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