Sony RM-785 Service Manual page 2

Trinitron color video monitor
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PVM-3230
RM-785
Outputs
Video output:
S Video
output:
RGB
output:
Audio output:
External sync
output:
CONTROL S
output:
Speak
er
output:
Power
requirements
Power consumption
Dimensions
Weight
Supplied
accesso ries
Optional accessories
LINE A/B: BNC
connector,
loop-
through
LINE AIB:
4-pin MINI
DIN
connector,
loop-through
ANALOG
RGB BNC connector.
loop-through
LINE
A/ B:
phono jack,
loop-through
ANALOG RGB
:
phono
jack, loop-
through
BNC
connector
,
loop-through
minijack
8 - 16
ohms (
15
W
+
15 W)
120 V AC
,
50/60
Hz
3.0 A
Approx
.
814
x 629 x
595 mm
(w/h/d)
(32'
/e x
24
5
/e x
23
3
/e
inches)
Approx
.
84kg (185 lb 3
oz)
Programmable
Remote Commander
RM-785 (1)
Size AA batteries (4)
SS-X6A
speaker system
APM-X5A
speaker system
Design and specifications
are subject
to
change without
notice
.
Pin assignment
DIGITAL
RG
B
connector (9-pin)
@
Pin No.
1
2
3
4
5
6
7
8
9
1
2 3 4
5
0
0
0
0
0
0
0
0
0
6
7
8
9
Signal
@
GND (ground)
GND for
the signal
Red
input
Green
input
Blue input
Inten sity
NC (no
connection)
H-S
YNC
V-SYNC
Signal level
GND
GND
Positive polarity (TTL level)
i
i
i
-
Positive
or negative polarity
(TTL level)
Same
polarity
as
H-SYNC
(TTL level)
VTR connector (8-pin)
0
0
Pin
No.
Signal
Description
-5 dBs
,
high input
1
Audio input
impedance
(more
than
47 kilohms
)
2
Video inpt
Composite 1
Vp-p,
sync
negative,
75 ohms
3
NC
-
4
NC
-
5
GND
GND
6
GND
GND
7
NC
-
8
NC
-
S VIDEO
(Y/C separate) IN connector (4-pin)
-
2
-
Pin No.
Signal
Description
1
Y-input
1 Vp-p
,
sync
negative,
75 ohms
2
CHROMA
0.286
Vp-p,
burst
sub-carrier-input
75
ohms
3
GND
for Y-input
GND
4
GND for CHROMA-inpu
t
GND
Timing chart
Sync
Horizontal
8
.3
µs
r
63.5µs
5.2 µs-4
I
Video
jj::=1=8.=5::::µ=s::+l
_
___:
4~5~µ:_:s
'.___
- -i
.__
__
__,j
data display
duration
Vertical
Sync
2.3
ms
r--
16.6 ms
1.41~
I
Video
I
3.9ms
I
I
r
l======+--
-
·-
1
2.7
ms
_
.,'-----_.
data display
duration

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