Panasonic TH-103PF9UK - Power LED Blinks 13 Times

Trouble Mode
DN board SOS (3.3V, 2.5V, 1.8V, 1.5V down)
Defective Board
DN Board
DN SOS – Power LED Blinks 13 Times
Power Supply / Protect Circuit
How to find the defective board
D
25
LED R
27
15V
D4710
IC4701
P
25
IC4304
23
2.5V
21
IC4303
23
3.3V
21
IC4307
23
21
1.5V
IC4306
23
21
1.8V
P_ON/OFF
Q4702
D4713
Q4704
D4712
Q4703
D4708
Q4719
Q4705
Q4718
Q4717
DN
2
D
3
1515
15V
15V
1,2
1,2
P
25
15V
1,2
1,2
1,2 1,2
15V
P(SS)
P(SC)
PC
D DN
DN_SOS
(L : SOS)
139
34
The Defective Board is the DN Board ONLY.
PC
202
PC
201
PC
203
46