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Hitachi VK-S274R Service Manual page 14

Color & b/w video camera
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Description of Operation > Microprocessor Pin Function Table
Pin
Active
I/O
Abbreviation
No.
Level
79
-----
-----
NC9
80
-----
-----
NC10
81
-----
-----
NC11
82
-----
-----
NC12
83
O
(Pulse)
SDO
84
I
(Pulse)
SDI
85
O
(Pulse)
SCLK
86
-----
-----
DC-LIGHT
87
-----
-----
NC13[1]
88
I
(Pulse)
4800SET
89
-----
-----
LIGHT-SW
90
I
Hi/Lo
COLOR/BW
91
-----
-----
NC13[2]
92
-----
-----
F-DIAL1
93
-----
-----
F-DIAL2
94
-----
-----
LIGHT-0
95
O
Hi/Lo
STBY_5V
96
O
(Pulse)
CLK-CDS
97
O
(Pulse)
SDO-CDS
98
O
(Pulse)
CS-CDS
99
O
(Pulse)
CS-EE[1]
100
O
(Pulse)
CS-EE[2]
Not used. Open.
For data communications with IC1121 (CAMERA DSP), IC1202
(EEPROM), IC1203 (EEPROM).
Not used. Open.
Not used.
Not used. Open.
Color model and B/W model select input. (Hi: Color model/Lo: B/W
model)
Not used. Open.
5V regulator control output. (Hi: On/Lo:Off)
Transfer data to IC1101 (CDS/AGC & A/D CONV. ).
Activates data communications with IC1101 (CDS/AGC & A/D
CONV. ).
Activates data communications with IC1202 (EEPROM).
Activates data communications with IC1203 (EEPROM).
3 - 4
Function

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