Protection Circuit (Tc-L32/37Dt30,Tc-L42D30) - Panasonic TC-L42D30 Technical Manual

Protection Circuit (TC-L32/37DT30,TC-L42D30)

A Board ( TNPH0958)
< SOS signal >
IC4900
Audio
3
AMP
IC5901
Drive
3 blinks : Not use
12 blinks : N/A (Not Applicable)
13 blinks: Emergency
(communication between standby and main CPU)
14 blinks: IROM_SOS (Peaks-ROM)
IC5000
REG
(STB3.3V)
RESET
20 19
STB3.3V
A15
BL ( Back Light )_SOS
42
LCD Panel
SUB3.3V
LED
1
（No shutdown）
Peaks LDA3
SOUND_SOS
AG22 AE17
9 blinks
IC8000
Peaks
LDA3
AH16
1 blinks
AG21
uCOM
( LED_SOS )
AC24
P15V
4 blinks
SUB3.3V
7 blinks
A15
10 blinks
46
47
Panel-T-CON_SCL/SDA
Communication error
(inside of
LCD module )
32/37DT30
T-CON_IC
T-CON_IC
(LP1)
(LP1)
42D30
ZWEI2_IC
ZWEI2_IC
(TC)
(TC)
48