Service manual CL2554AN / CL2854AN
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.
If the TV set was on normal run mode before switching off, the microcontroller delivers
horizontal drive voltage at pin 33 and picture appears on screen.
.
If the TV set was on stand-by mode before switching off, the microcontroller switches TV set
to stand-by mode, decreasing power pin voltage (pin 63). This matter will be explained on
paragraph 5-9-2-b.
* Reset pulse circuit
3.3V
3.0V
3.0V
1.2V
1.2V
0V
DC supply voltage
I823 pin 3
reset pulse
I501 pin 60
from I823
pin 3
R591
100
W
D591
DZ2.4
R593
10K
W
R592
10k
W
Q510
R594
10K
W
Q511
C501
50V
10
m
F
to I501
pin 60
+
0
V
Reset pulse circuit and corresponding waveforms
Summary of Contents for CL2554AN
Page 17: ...Service manual CL2554AN CL2854AN 16 ...
Page 21: ...Service manual CL2554AN CL2854AN 20 ...
Page 34: ...Service manual CL2554AN CL2854AN 33 5 Circuit description 5 1 Block diagram ...
Page 39: ...Service manual CL2554AN CL2854AN 38 Chassis block diagram IF ...
Page 43: ...Service manual CL2554AN CL2854AN 42 Sound signal flow diagram ...