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Sony PVM-1444QM Service Manual

Trinitron color video monitor.
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SERVICE
MANUAL
AEP
Model
PVM-1440QM
Chassis
No.
SCC-C57A-A
PVM-1442QM
Chassis
No.
SCC-C56A-A
PVM-1
444QM
Chassis
No.
SCC-C55A-A
(PVM-1444QM)
Video
signal
Frequency response
Line
input:
More
than
7
MHz
(-3
dB)
Y/C
input:
More
lhan 8
MHz
(-3
dB)
Component
input
(Y/R-Y/B-Y):
More
than 8
MHz
(-3 dB)
R.G.B. input
(analog):
More
than 9
MHz
(-3 dB)
Chrominance
subcarrier attenuation
3.58
MHz:
Less than -30
dB
(comb
filter)
4.43
MHz:
Less
than
-36
dB
(trap
filter)
Bandpass
3.58
MHz:
2
MHz
equiband
4.43
MHz:
2
MHz
equiband
Chrominance/luminance
time
error
Composite: Less than ±100 ns
Y/C
Video:
Less than ±50 ns
Component:
Less than ±50 ns
Aperture
correction
-4.5
to
+6.5
dB
(at
4.5
MHz)
Synchronization
AFC
time constant:
1
msec
Line
pull
range
Horizontal:
±500 Hz
Vertical:
8
Hz
Picture
performance
Normal
scan
7%
overscan
of
CRT
effective
screen
area
Under scan
3%
underscan
of
CRT
effective
screen area
H.
linearity
error
Less
than
4%
V. linearity error
Less than
5%
Convergence
Central
area: 0.6
mm
Peripheral
area: 0.8
mm
Raster
size
stability
H:
1.0%,
V:
1.5%
High
voltage regulation
3%
Audio
output
0.6
W
(Max.)
CRT
PVM-1444QM/PVM-1442QM:
EBU
PVM-1440QM:
P-22
Chromacity
coordinates
(EBU
only)
i
X
Y
Red
0.640
0.330
Green
0.290
0.600
Blue
1
0.150
0.060
(tolerance ±0.01)
Color temperature
6,500°
K/9,
300°
K
(+8MPCD),
selectable
AC
regulation
range
220
-
240
V
AC,
50/60
Hz
Power consumption
Approx. 75
Wh
SPECIFICATIONS
inputs
For
ail
models
VIDEO
IN:
BNC
connector
AUDIO
IN:
phono
jack
VTR:
8-pin
connector
Y/C-INPUT
VIDEO:
4 pin
connector
AUDIO: phono
jack
PVM-1444QM
only
EXT SYNC:
BNC
connector
composite sync
1-4
Vp-p, negative,
75
ohms
terminated,
automatically released
when
cable
is
connected
to
the
output
connector.
ANALOG
RGB/COMPONENT:
BNC
connector
R,
G,
B and Y
channels:
0.7 Vp-p,
±6
dB,
non composite
R-Y
and
B-Y channels: 0.525
Vp-p,
±6
dB
(Standard
color
bar
signal of
75-percent
chrominance)
When
the
composite
signal
is
fed
to
the
G
or
Y
channels,
the
monitor can be
activated
in
the
internal
sync
mode.
75
ohms
terminated, automatically released
when
a cable
is
connected
to
the
output connector.
CTRL
S:
Minijack
.
w.
wokiub manuals
MAURITRON
SERVICES
8
Cherry
Tree
Road, Chinnor
Oxfordshire,
OX9 4QY
Tel
(01844)
351694
Fax (01844)
352554
email:-
mauritron@dial.pipex.com
PVM-1442QM
only
EXT SYNC:
BNC
connector
composite
sync
1-4
Vp-p. negative,
75
ohms
terminated,
automatically released
when
cable
is
connected
to
the output
connector.
ANALOG
RGB:
BNC
connector
0.7
Vp-p,
±6
dB,
non composite
75
ohms
terrrftnated,
automatically released
when
cable
is
connected
to
the
output connector.
DIGITAL RGB:
9-pin
connector
CTRL
S:
Minijack
PVM-1440QM
ANALOG RGB
signal
through AV:
0.7
Vp-p,
±6
dB,
non
composite,
75
ohms
terminated
Continued on
next page
TRINITRON ®
COLOR
VIDEO
MONITOR
SONY

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