Sony Trinitron PVM-1271Q Service Manual

CMPTR
connector
(25-pin)
Pin
assignment
7
^
Pin
No
Signal
Signal
level
1
*
iBM
select
Highs*ate(5V):
IBM
mode
Low
state
: 3 Bit
TTL
2
High
state
(5
V
or
open)
: Audio
inputs
from
pin
13.
'0
;
Audio
inputs
from
the
LINE
A
AUDIO
IN jack
3
H.
sync
or
composite
sync
Negative
polarity
When
the
high
state
is
selected
at
pin
9
:
1
V
p-p, 75-ohm
terminated
When
the
iow
state
is
selected
at
pin
9
:
TTL
level
4
5
6
Blue
input
Positive
polarity
When
the
high
state
is
selected
at nin g
•
Green
input
terminated,
non
sync)
.
1
When
the
low
state
is
selected
at
pin
9
:
Red
input
Digitai
signal
(TTL
level)
7
--12
V
power
supply
0.3
A
max
8
-k
5 V
power
supply
0.6
A
max
9*
Analog/digital
mode
select
High
state
(open)
;
Analog
signal
(0.7 V
p-p)
Low
state
(ground)
:
Digital
signal
fnLJe^
Pin
No.
Signal
level
10
RGB/NORMAL
mode
select
High
state
(5
V
or
open)
: RGB
inputs
from
a
microcomputer
ow
state
(ground)
:
Composite
video
inputs
from
the
LINE
A
VIDEO
IN
connector
11
^
Negative
polarity
TTL
level
12
®
(5
V
or
open)
:
Video
inputs
from
a
microcomputer
only
Low
state
(ground)
:
Composite
video
input
from
the
LINE
A
VIDEO
IN
connector
During
the
low
state,
the
video
signal
from
the
microcomputer
is
blanked
and
the
compos.te
v,deo
Signal
from
the
LINE
A
VIDEO
IN
connector
is
supSposS
over
the
signai
from
the
microcomouter
uKCMniposeo
over
13
-5
dB
(
100
O/.
modulation),
input
impedance
more
than
47
k
ohms
14
15-24
bX 1
/IN 1
mode
sync
switch
High
state
(open)
: Sync
signal
input
from
the
CMPTR
connector
Low
state
; Sync
signal
input
from
the
LINE
A
VIDEO
IN
connector
Ground
—
25
*
BM
luminance
signal
Positive
polarity
When
the
high
state
is
selected
at
pin
1 :
TTL
ievel
When
the
low
state
is
selected
at
pin
1
; Low
state
(oroundl
*
Examples
for
microcomputer
connections
^'^'''\^Pin
No.
Microcomputer^\
1
9
25
SMC-70/SMC-70G
—
High
state
iBM
computer
High
state
Low
state
iBM
luminance
signal
TTL
3BIT
computer
Low
state
Low
state
Low
state
While
the
information
given
is
true
at
the
time
of
printing,
small
pro-
duction
changes
in
the
course
of
our
company's
policy
of
improve-
ment
through
research
and
design
might
not
necessariiy
be
in-
dicated
in
the
specifications.
We
would
ask
you
to
check
with
vour
appointed
Sony
dealer
if
clarification
on
any
point
is
required.
i
I
-
2
—

Sony Trinitron PVM-1271Q Specifications

General

Brand	Sony
Model	Trinitron PVM-1271Q
Category	Monitor
Language	English