Zenith 19m20 schematic
PHOTO
TRADE NAME Zenith
MANUFACTURER
TYPE
TUBES Nineteen
POWER SUPPLY 110-120
TUNING
PACT*
i
SET
Television
RANGE
Channels
Zenith
Fold
er
VOLUME
CONTROL
ON-OFF
SWITCH
MODELS
M1800E,
M1800EU,
R1812RUZ.
M1800EZ, M1800RZ
M2228R, M2229E, M2229R, M2230E, M2230R, M2230RZ2,
Ma249E,
R2229EZ,
R2249RZ, R2250EZ, R2250RZ, R2257EZ, R2257RZ,
R2258EZ, R2258RZ
M2228RU,
M2249EU,
M2252RU,
R2249EUZ,
R2257RUZ,
M228RZ, M2229EZ,
M2249EZ, M2249RZ, M2250EZ, M2250RZ, M2252EZ,
M2252RZ
M2250RUZ
Radio
Corp. , 6001
Receiver
Volts
AC-60
2
thru
ZENITH MODEL
M1800R,
R1800EZ,
M1800RU,
M2249R, M2250E,
R2229RZ, R2230EZ, R2230RZ, R2249EZ,
M2229EU, M2229RU, M2230EU, M2230RU,
M2249RU, M2250EU, M2250RU, M2252EU,
R2229EUZ, R2229RUZ, R2230EUZ, R2230RUZ,
R2249RUZ, R2250EUZ, R2250RUZ, R2257EUZ,
R2258EUZ, R2258RUZ
,
Cycle
13
VHP,
14
R1800EUZ,
.
M2229RZV
Dickens
Ave. , Chicago
RATING
thru
83
M1800R
R1800RZ,
R1800RUZ, R1812EUZ,
M2250R,
M2230EZ, M2230RZ,
UHF, Video
R1812EZ,
M2252E,
39,
Illinois
1. 6
Amp.
IF 45. 75 MC,
19M20,
CHANNEL
SELECTOR
SWITCH
R1812RZ
M2252R,
(a>
117
Volts
Sound
IF 41. 25 MC
ZENITH
U, Z,
AC
CHASSIS
19M21,
CHASSIS
19M20
19M2OU
19M20Z
19M21
19M21U
19M21Z
19M21UZ
(Intercarrier)
U, UZ, Z
-o
to
N
N
-i
>
I
is
c-
^
w>
c
N
N
N
Drive
Cord
Stringing
Horizontal
Parts
Photographs
"The
case a recommendation, warranty
as
to the
parts
Inc.,
by the
"Reproduction
Sweep
and
Descriptions
Identification
available
and
suitability
or
use,
without
Circuit
View
View
HOWARD
replacement
of
of the
express
List
Cabinet-Rear
Chassis-Top
RF
Tuner
Resistor
listing
of any
quality
have
been compiled from information furnished
manufacturers
Adjustments
....
W.
part
or
guaranty
such
replacement
particular type
permission,
INDEX
6, 7
, . . , 23
11
SAMS & CO., INC. • Indianapolis
herein
by
Howard
of
of
15
thru
does
not
constitute
W.
Sams & Co., Inc.,
part.
The
numbers
to
Howard
W.
replacement part
editorial
Sams & Co.,
or
pictorial
Photographs
Trans. , Inductor
Servicing
18
Schematic
Schematic
11
Trouble
4,9
Tube
3
Tube
10,
21
Tube
14, 19
in any
of
these
listed."
con-
tent,
the
use of the
Sams & Co., Inc., Indianapolis
ternational
Union
DATE
in the
(Alternate
(TV)
Shooting
Failure
Placement
Placement
in
any
manner,
information contained
Copyright Union.
(1910)
by
12-54
Howard
(Cont)
Si
Alignment
Field
Tuner)
Aids
Check
Chart
Chart
Chart
is
prohibited.
........
(Bottom
(Top View)
5,
Indiana
No
patent
5,
Indiana,
All
rights
W.
Sams & Co., Inc." Printed
Identification
View)
...
liability
herein.
Copyright 1954
U. S. of
America. Copyright under
reserved
under
is
assumed with respect
by
Howard
Inter-American
in U. S. of
SET
259
20
8
22
13
2
21
12,
5
R
5
to
W.
In-
Copyright
America
EOLDER
16
THE
COOPERATION
RECEIVER
MAKES
»
MEASUBED
IT
POSSIBLE
OF THE
FROM
MANUFACTURER
TO
BRING
PIN
1
YOU
THIS SERVICE
OF
THIS
PAGE
2
A
PHOTOFACT
©Howard
STANDARD
W.
Sami & Co., Inc.
NOTATION
SCHEMATIC
1954
LLJ
to
to
U
r»
>
in
(/>
t/t
N
K>
N
N
SET 259
FOLDER
16
PAGE
3
PAGE
4
CHASSIS
BOTTOM
VIEW-CA
JJ28)
(C32J
(C27
W-CAPACITOR
IDENTIFICATION
PAGE
9
TUBE
PLACEMENT CHART
1ST
VIDEO
IF
INDICATES
BLANK
TOP
PIN OR
VIEW
LOCATING
SYNC
KEY ON
TUBE SOCKET
The
following;
Refer
to
tube placement chart
POWER
No
LOSS
No
No
No
Has
Overloaded picture
SYNC
No
Nohoriz.
No
SWEEP
No
No
Poor
Poor
Narrow
Vert,
Horiz.
TUBE
chart
lists
SUPPLY
raster,
no
sound
OF
PICTURE
pic,
no
sound,
pic,
no
sound,
pic,
has
sound,
pic,
no
sound
FAILURE
vert,
sync - VJ,
sync -Vll,
vert,
or
horiz.
FAILURE
raster,
has
vertical
sound - V14, V15, V16,
deflection
vert,
linearity
horiz.
linearity
picture - V14, V16,
off
freq.
- V7, Vll
off
freq. -Vll, V13,
FAILURE CHECK CHART
tubes whose failures
for
location
FAILURE
- V18
OR
SOUND
has
raster
has
snow - VI,
has
raster
- V8, V9,
-V7
Vll
V13,
V14
sync
- Vll
- V7,
or
foldover - V7,
or
foldover - V14, V15,
are
most
and
type
of
tube.
- V2, V3, V4, V5, V6
V2, V3
- V6, V7, V19
V10
VI7,
VT2
V19,
VI6
V12
V17,
VM
V18
likely
Fuse
to
produce
(Ml)
the
indicated symptoms.
i
10
N
-
I
K)
>
»>
c
NC
N
N
H
>
-
V*
SET
259
FOLDER
16
PAGE
5
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