Philips LC8.1E - Page 18

Service Modes, Error Codes, and Fault Finding
EN 18 LC8.1E LB5.
Figure 5-6 Start-up flowchart
AC ON
3V3STBY Available
Weltrend Powered by
3V3_STBY, STANDBY=HIGH
Power_ON_OFF=Low initialize
GPIO pins of Weltrend
Enable Audio mute
STANDBY=Low
Wait for 100ms
Is Power Down
=high?
Wait for 100ms
Time out = 200ms
Wait for 300ms
Weltrend reset the LOCTOP
CPU_RST=HIGH
LOCTOP read the NVM
Last status on?
Weltrend to go
to Standby
Initialize tuner, SMICL,
HDMI_MUX_RST
Enable Power Down
Enable DC_PROT INT
LCD_POWER_ON=HIGH
Wait for 20 ms
Switch ON LVDS Signal
Wait for 1000ms
Init. Warm Component
BL_ON_OFF=HIGH
*BL_ADJ KEEP 100% for
3000ms before dimming
Blank picture
Picture Mode setup & Detection
UnBlank Picture &
Unmute Audio
END
NO
YES
NO
YES
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