Power Led Error Code Definition - Panasonic TC-P50ST50 Troubleshooting Manual

Power LED Error Code Definition (1 of 2)
POWER LED
ERROR CIRCUIT MONITORED
CODE
Panel Information SOS
1 BLINK
2 BLINKS P15V form the P board
Incomplete or interrupted
3 BLINKS Boot Program execution of
PEAKS IC (IC8000).
Power Supply output
4 BLINKS
voltages
6 BLINKS SC Energy Recovery Circuit
Scan Drive Circuit and
7 BLINKS Connection between the SC
board and the SC board.
Sustain Drive Circuit and
8 BLINKS Connection between the SS
board and the Panel.
CONDITIONS TRIGGERING
THE SHUTDOWN
Communication problem
Missing P15V
P15V is not been generated by the P board.
Wrong diagnostic by the A board
Shorted P15V
Missing F15V
Wrong diagnostic by the A board
Vsus Over Voltage Condition.
P15V Shorted while in operation.
Wrong diagnostic by the A board
An increase or reduction of the Energy Recovery Circuit
output (MID).
Shorted SUB5V.
Wrong diagnostic by the A board.
Missing or shorted Vsus.
Abnormality of the scan circuit output, the 15V_F, the
scn_pro, and Vscn circuit.
Loose or open Connection between the SC board and the
SC board (SC41, SC42, SC46).
Open or loose connection between connectors SC2/P2
Wrong diagnostic by the A board
Defective panel
Abnormality of the sustain drive circuit.
Open or loose connection between the SS/SS2 Boards.
and FPCs from the panel (SS52 – SS54 – SS55 – SS57).
Open or loose connection between connectors C10/C20 or
C26/C36.
Wrong diagnostic by the A board
LIST OF BOARDS POSSIBLY CASUSING THE FAILURE
#1 Suspect #2 # 3 Occasionally
A
P A
A P
P A
SC A
SU/SD SC SS
SS A C3
#4
Not Often
C
A/Panel
Panel
Slide 4