Panasonic TC-P50ST50 - Protection Circuit Block Diagram (Part 1)

IC8000-1
Peaks
LD4
Standby
uCOM
System
uCOM
AD15
PANEL_SOS
9
SC_SOS6
12
8
11
SS_SOS8
SOS_DCC_S (9)
SC_SOS7
10
Normal : all input = “L”
(output = “L” )
SS
A33
5
A20
3
6
SC
IC9300
N2
(Analog output)
6 – 9 blinks
SC_UHZ
18
179
SC
A20
W3
(If no signal,
Discharge Reset
:
6/8 blinks)
1314
T4
AF16
PDP_DRVRST
A31
55
C
3.3V_DET
DRVRST
(If no 3.3V in C1/C2-PCB,
Discharge Reset
:
6/8 blinks)
D_UHZ
7
AG3
SUB3.3V
AD16
FFC_OFF_DET(6)
TC-P**ST50/UT50
(TNPH0989**)
Protection Circuit Block Diagram 1 of 2 (TC-P50ST50)
A32
1
W28
P3.3V
SOS
2 blinks
AE20
Q9201
Q9201
P15V
M28
C24
3 blinks
2 Blinks
if P15 is
missing
3 Fast
Blinks
At plug-in
if SUB3.3
is missing
P15V
Missing 2 Blinks
Shorted 3 Blinks
IC5000
REG
(STB3.3V)
RESET
SUB3.3V
Missing 3 Blinks
At plug-in
Shorted
P15V
Det. Circuit
SUB3.3V
Det. Circuit
N
SOS
Slide 6