Power Led Blinks 8 Times - Panasonic TH-103PF9UK Technical Manual

Panel SOS – Power LED Blinks 8 Times
Trouble Mode
SUS Driver SOS
Power Supply / Protect Circuit
P(SS)
P2
Vsus
1
15V P12
PC
PC
PC
P25 201
D25
202
P5V
+5V 7 7 7 7
16
9 9
9 9
PC
P(SC) 203
P25
DN
+5V 7 7
9 9
Defective Board
SS, D, P(SUS/SC),P(Multi/SS) Board
SS
Energy Recovery
SS2
Circuit
1
D6253
TPVSUS
LED(G)
15V
SS12
C8
C88 SS44
C80
P5V
1 1
BUFFER
SS
3 3
PULSE
8 8
SOS
9 9
CD
D34
D IC9003
SS SOS
73
SS PULSE
67
PANEL_SOS
D3 8
DN2 8
166
IC4701
How to find the defective board
FET
SS OUT
VE2 REG.
FET
FET
VE REG.
FET
DRIVE
R
IC6261
Ve SOS
IC6152
1/2Vo SOS
SS'2 FFC CABLE DET
Energy Recovery DET condition
・ NO VSUS
・ NO SS PULSE(S44 3~8in)
・ NO P5V(SS44 1pin)
42
Turn the power switch on.
Does the SS board LED light
before Shutdown?
Yes
Are the
FFC cables that
No
connect the SS, SS2 and
SS3 boards properly
seated?
FFC Cables of the
SS, SS2, SS3 Boards
Yes
SS Board
Disconnect the CN SS2.
Turn the unit on.
Does VSUS
appear at pin 1 of
CN P2 before
shutdown?
SS ( or D) Board
No
Reseat the
No
P Board
Yes
( SS or D(SS_PULSE) NG)