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TC-K333ESA/K990ES
|
4-1-2. 1C601 (M50940-313SP) PIN FUNCTIONS
Level
meter
display
of 24-segment
fluorescent
display, etc., are
performed
by receiving
direction
from
the
master
microcomputer
(IC801).
Pin No.
Pin name
a
Description
A/D input-port reference voltage input (+5V)
Not used.
(Connected to +5V)
Not used.
(Connected to +5V)
Data input from the master microcomputer
(IC801) (analog)
Data input from the master microcomputer
(1C801) (analog)
Not used.
(Connected to +5V)
Level meter L-CH input(analog)
from the meter amplifier(IC514)
Level meter R-CH input(analog)
from the meter amplifier (IC514)
Not used.
Fluorescent display grid output
Not used.
Not used.
(Connected to pin ®. )
Not used.
Not used.
Not used.
Fluorescent display segment output("TAPE" displayed).
"L": TAPE displayed.
"H": SOURCE
displayed.
Fluorescent display segment output ("OVER LEVEL" displayed).
It is displayed when "L".
Fluorescent
display segment output("TYPE
I" displayed).
It is displayed when "L".
Fluorescent display segment output("TYPE
II" displayed).
It is displayed when "L".
Fluorescent display segment output("TYPE
I" displayed).
It is displayed when "L".
Power supply terminal (GND)
Reset input
Clock input (4MHz)
Clock outupt.
XCIN
Not used.
(Connected to GND)
XCOUT
Not used.
Vss
Power supply terminal (GND)
®
Not used. |
_ VER
Version switching
input(Always set to "L")
TEST
Test mode input.
"L": All
the lamps of the meter are lit.
CAL
Calibration seers
input.
"L": CAL mode.
"H": Normal mode.
IN
Not used.
(Connected to GND. )
VP
Fluorescent
display segment output's pull-down power supply terminal (-22V)
$23~S0
Fluorescent display segment output(meter display)
AVcc
Power supply terminal (+5V)
Vec
Power supply terminal (+5V)
OO
0 0
CO
COC
OO
CO
et
et
mt
mt
mt
Rt
OVER LEVEL
TYPE
I
TYPE 1
TYPE IV
CNVss
RESET
XIN
XOUT
0
0
0
0
I
I
0
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