Philips LC7.2E Service Manual page 27

Service Modes, Error Codes, and Fault Finding
SEMISTANDBY/ STANDBY
LED =
For DVB Sets only (Semistandby)
Wait for 3000ms
Except power tact switch
SDI PDP => CTRL_DISP1 = HIGH
Off Air Downloading/ Recording Mode
IBOZ send shut down command
300ms
20ms
RED No
Disable Power Down INT &
Port Assignment in STANDBY
40ms
Total = 360ms
Figure 5-17 Semi Stand-by/Stand-by flowchart
LC7.2E LA
Start
Mute Audio
BL_ADJ stop dimming
(PWM duty cycle 100%)
BL_ON_OFF = LOW
Wait 300ms
Switch OFF LVDS
Wait 20ms
LCD_PWR_ON = LOW
Software Shutdown:
Standby using
"power key"
Yes
LED = NO LED
for Standby soft mode
DC_PROT_INT
BL_ADJ = LOW
(PWM duty cycle 0%)
WriteProtect for NVM
STANDBYn = LOW
Wait for 3000ms
End
5.
Sets go to standby here
Blocking for the next start up to ensure
power supply discard properly.
G_16860_071.eps
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