Philips 47PFL5403 Service Manual page 24

EN 24 5. LC8.2A LA
Power Down INT:
AC OFF or Transient INT
Notes:
1. Power Down INT will based on fall edge triggering
2. +3V3STBY will stay for 15ms, software must perform WP for NVM within 15ms.
DC_PROT INT
Service Modes, Error Codes, and Fault Finding
Figure 5-10 Power Down & DC_PROT flowchart
Start
Avoid false trigger
Poll the Power Down
No
INT for 5 times
Yes
End
Mute Audio & VIdeo
WP for NVM
STANDBY = HIGH
Wait 5000 ms
Re-start: Start up
End
Start
Avoid false trigger
is DC_PROT = LOW
No
for 3 sec?
Yes
End
Mute Audio & VIdeo
Error 1
Log Error Code
[Protection]
WP for NVM
STANDBY = HIGH
End I_17760_027.eps
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