Rgb Connector; Vtr Connector; Y/C Input Connector; Pvm-1 440Qm/1 - Sony PVM-1444QM Service Manual

PVM-1 440QM/1
442QM/1
444QM
Outputs
For
all
models
VIDEO OUT:
BNC
connector
Loop- through
AUDIO OUT: Phono
lack
Loop-through
PVM-1
444QM
only
EXT SYNC:
BNC
connector
Loop-through
ANALOG
RGB/COMPONENT: BNC
connector
Loop-through
CTRL
S;
Minijack
Loop-through
PVM-1
442QM
only
EXT SYNC:
BNC
connector
Loop-through
ANALOG RGB BNC
connector
Loop-th
rough
CTRLS:
Minijack
Loop-th
rough
General
Dimensions
Approx. 346
*
340
*
412
mm
(w/h/d)
(13V
(
x
13*/i* 16V- inches)
Weight
Approx.
16.5
kg
(36 lb 6 oz)
Pin
assignment
DIGITAL
RGB
connector
(9-pin)
TTTTa
o O O O O
Pin
No.
Signal
Signal
level
i
GND
(ground)
GND
2
GND
lor
the signal
GND
3
Red input
Positive polarity
(TTL
level)
4
Green
input
1
5
Blue input
r
|
6
Intensity
!
1
:
7
1
—
•
—
-
—
—
—
—
NC
(no connection)
—
8
H-SYNC Positive or
negative polarity
(TTL
level)
Same
polarity as
H-SYNC
(TTL
level)
If
the intensity
function of
Pin No. 6
is
not used, set
the
internal
switch
on
the
Qd
board to the
B
position,
and
connect the Pin No. 6 to
the
GND.
With
this
setting,
when
the
positive intensity signal
synchronized
to
the characters
on
the
screen
is fed,
the
luminance
of
the characters
will
be
increased.
If
the specific intensity function,
such as that of
an IBM
microcomputer,
is
used,
set
the internal
switch on the
Qd
board
to
the
A
position,
and
feed the intensity
control signal
to Pin
No.
6.
VTR
connector
(8-pin)
Pin
No.
Signal
Description
i
Audio input
-5
dBs. high input
impedance (more than 47 kilohms)
2
Video input
Composite
1
Vp-p.
sync negative. 75
ohms
3
GND
GND
4
NC
—
5
GNO
GND
6
GND
GND
7
GND
GNO
8
GND
j
GND
Y/C (Y/C separate)
INPUT connector
(4-pin)
Pin No.
Signal
Description
i
Y-mput
i
Vp-p,
sync
negative, 75
ohms
2
CHROMA
sub-carrier-mput
300 mVp-p,
burst
Delay time between Y and
C: within
0±100 nsec., 75
ohms
3
GND
for
Y-input
GND
4
GND
for
CHROMA-input
GND
•
|
(Slot for internal switch)
1
Press the switch inside this
slot.
The
signal
from Y/C-INPUT
connector has
priority over the
one
from
VTR
(8-pin)
connector
-
2
-