Pioneer DV-380-S Service Manual page 79

5
Pin Description
QQ
3 7 63 1515 0
Pin Name
LED1 to LED4
OSC
DOUT
DIN
(Schmitt Trigger)
CLK
(Schmitt Trigger)
STB
(Schmitt Trigger)
TE
L 13942296513
K1 to K2
VSS
VDD
SG1/KS1 to SG16/KS16
VEE
SG17/GR12 to SG24/GR5
GR4 to GR1
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–
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Description
LED Output Pin
Oscillator Input Pin
A resistor is connected to this pin to
determine the oscillation frequency
Data Output Pin (N-Channel, Open-Drain)
This pin outputs serial data at the falling
edge of the shift clock (starting from the
lower bit).
Data Input Pin
This pin inputs serial data at the rising edge
of the shift clock (starting from the lower
bit)
Clock Input Pin
This pin reads serial data at the rising edge
and outputs data at the falling edge.
Serial Interface Strobe Pin
The data input after the STB has fallen is
processed as a command.
Q Q
When this pin is "HIGH", CLK is ignored.
3 6 7 1 3 1 5
Key Data Input Pins
The data inputted to these pins are latched
at the end of the display cycle.
Logic Ground Pin
Logic Power Supply
High-Voltage Segment Output Pins
Also acts as the Key Source
Pull-Down Level
High Voltage Segment/Grid Output Pins
High-Voltage Grid Output Pins
co
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DV-380-S
7
9 4 2 8
0 5 8 2 9 9 4 2 8
m
7
8
9 9
Pin No.
A
1 to 4
5
6
B
7
8
C
9
9 9
10 ,11
12,44
13,43
D
14 to
29
30
31 to
38
39 to
42
E
F
77
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