Panasonic TC-P50ST50 - Protection Circuit Block Diagram (Part 2)

IC8000-2
Peaks
LD4
Standby
uCOM
System
uCOM
STB3.3V
SOS
10 blinks
AA15
Q8771
Q8771
SUB3.3V
FAN_SOS
H6
ALL_OFF(P_SOS4)
A6
4
P
AE15
4 blinks
SUB5V
TC-P**ST50/UT50
(TNPH0989**)
SUB3.3V
SOUND_SOS
12blinks
IC4900
Audio
AMP
22
AD19
IC4901
Audio
AMP
22
Normal=“H”
(11blinks)
Emergency : 13 blinks
IROM error : quickly 3 blinks
SUB5V &
SUB3.3V
OV Det.
Circuit
10 Blinks if
SUB5V or
SUB3.3V is
too high
SUB5V
Missing 3 Fast
blinks at
plug-in
Shorted 6 blinks
after 11 sec.
Over Voltage 10 blinks
Protection Circuit Block Diagram 2 of 2 (TC-P50ST50)
Slide 8