Sync Control Circuit - Kortek KTN-2001 Service Manual

KORTEK Corporation

6-9.SYNC CONTROL CIRCUIT

This SYNC Control Circuit acts a role to transform so that output of constant level is
always made regardless of input or no input of SYNC.
In order to do so the circuit is composed using the chip built-in with 4 sets of
EXCLUSIVE-OR Gate circuit.
PIN 14 is Vcc supplying terminal for driving of chip.
PIN 1, 2, 4, 5, 9, 10, 12 and 13 are SYNC input terminal.
PIN 3, 6, 8, 11 are output terminal. (Please refer to the following Function Table for detail
contents.)
※ FUNCTION TABLE
♦ EACH GATE
A(PIN 1)
L
L
H
H
KTN-2001/1401
IN-PUT
B(PIN 2)
L
H
L
H
OUT-PUT
Y(PIN 3)
L
H
H
L
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