Troubleshooting for No Power On (Power LED is off = No blinking) -2
NG
Check if the output 16V
(SRV-16V in A board)
OK
NG
Replace A board
Check if the output of
STB5V.
Disconnect A02 connecter.
Short check of STB5V line
in A board.
No
Shorted
Shorted
Replace P board
Replace A board
Disconnect A02 connecter.
Short check the SRV-16V
In A board.
Shorted
No shorted
Replace A board
Disconnect LDP3 connecter.
Short check the SRV-16V in
P board.
Shorted
Replace P board
Replace LDP board
No shorted
< EX/ES/EZ series >
OK
P
A
LDP
16V
P2
A02
LDP3
60
P(LDP)
A
STB5V
16V
P2
A02
65EX6**/75EX7**
Both of STB5V and 16V are necessary before lighting power LED.
( refer to page 42 of “Simple Power On Sequence (EX/ES Series)” )
Replace P(LDP) board
Only A+P+LDP models (65EX6**, 75EX7**)
STB5V
