Daewoo TVZ 1321, Service Manual

Page: 81 / 151

79
Pin
Function
Voltage and
Peripheral circuitry Circuit description
No. wave Information
COINCIDEN-
8V(Synchronous)
17
CE OUT
to
0V(Asynchronous)
18 V.OUT
19 Vcc-2(VCJ) 9V
20 H.OUT
21
COLOR
4.5V
CONT.
Voltage goes up if a
sync signal is entered
and horizontal AFC is
locked; otherwise, the
voltage goes down.
therefore, the pin can be
also used as a MUTE
detector. At that time,
pay attention to high
impedance.
Pulse as shown below is
putput.
Power supply for VC,
AFT, RF AGC and SIF
DET.
Horizontal pulse of 24 µ
s wide is output. It is
open emitter output.
Color control pin. Its
voltage goes to. 0V
when service SW is ON.
DESCRIPTION OF PINS
(cont.)
2k
33k
200
200
60k
30k
200
5.6k
10k
4.5V
Killer Service SW
640
OV
3.8V
1k