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