Barco SLM R12 Plus, Руководство по обслуживанию, Страница: 177 / 281

25. Light Output Sensor R763294
25.3 Interconnection with CPU
Interconnection diagram
Light Sensor R763294
Light Sense
EEPROM
I2
S0
S1
S2
S3
WP
A0
A1
A2
Photodiode
Light
Progr. Light-to-Frequency converter
I3
Microcontroller
I 1
X1
T1/P0.7
SCL/TO/P1.2
SDA/INTO/P1.3
TXD/P1.0
RXD/P1.1
CIN2A/P0.2
CM1/P0.6
CM2/P0.0
SENS
FREQ.
Current-to-
frequency
converter
J1
1 ++5V
2 SDA_STBY
3 SCL_STBY
4 GND
I
n
p
u
t S
e
l
e c
to
r
1 R 7 63850
J 2 0 4 J 2 0 5 J 2 0 6 J 2 0 7
Po
w e r
B
a c
k p l
a n e
R 7 64239
L i g h t S
e n s e
J 2 0 4 J 2 0 5
J 2 0 6 J 2 0 7
D 1
+ +
5 V
A 1 S D A
_
S T B Y
A 2 S C L
_
S T B Y
D i g i ta l I
n
p
u
t B
a c
k p l
a n e
R 7 6 3 3 7 8
J 8 8 8
J 8 87
I R R
e a r
I R F
r o n
t
J 2 0 2 J 2 0 3 J 2 0 1
C 1 S D A
_
S T B Y
B 2 S C L
_
S T B Y
J 2 0 2 J 2 0 3 J 2 0 1
B 2 I R
_
F R
O N T
B 3 I R
_
R E A R
T
o
C PU R 7 6 38858
D 1
+ +
5 V
A 1 S D A
_
S T B Y
A 2 S C L
_
S T B Y
J 7 0 9
t
o
C
o n
t
r o
l l
e r
1
+ +
5 V
2 G N D
3 S C L
_
S T B Y
4 S D A
_
S T B Y
J1
J 4 1 6
J 2 0 7
J 2 0 7
J 7 0 9
J 2 0 3
J
2
0 3
Image 25-3
Interconnection diagram with CPU
R5976820 SLM R12+ PERFORMER 08/03/2005 175