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Troubleshooting for No Power On (Power LED is off = No blinking)
< DX series >
Check if the output of
STB5V.
NG
Disconnect A02 connecter.
Short check of STB5V line
in A board.
Shorted
Replace A board
DX9**
P2
A02
P
16V
65DX8**/7**
A02
P2
P
16V
PB4
DX series need both STB5V and 16V before lighting power LED. (Refer to Page41.)
OK
Check if the output 16V
(SRV-16V in A board)
Replace P board
No
Shorted
(DX9** = skip to below )
Disconnect PB4 connecter.
Short check the SRV-16V
In A board.
A
Disconnect A02 connecter.
Short check the SRV-16V
In A board.
A
PB
Replace A board
OK
(A+P, A+P+LDP)
T*-40,49,50DX***/
T*-58DX7**,DX8**/
NG
TX-55DX***/
T*-55DX600,DX650
(A+P+PB)
T*-65DX8**/7**
T*-**DX900/
TH-55DX640/
TC-55DX700
Replace PB board
No shorted
Shorted
Replace P board
No shorted
Shorted
Replace A board
Disconnect A02 connecter.
Short check the SRV-16V
In A board.
No shorted
(No LDP board = go to right)
Disconnect LDP3 connecter.
Short check the SRV-16V in
P board.
No shorted
Replace LDP board
P
Replace A board
Shorted
Replace P board
Shorted
A
A02
P2
16V
LDP
LDP3
P3
52
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