Service Modes, Error Codes, and Fault Finding
EN 29
LC8.1U LA
5.
STANDBY SEQUENCE
The following flowchart depicts the Standby (plus Semi-
Standby condition) sequence:
Figure 5-10 Standby flowchart
START
Stop Backlight Dimming,
PWM_DIMMING = 100%
Turn Off Backlight
BACKLIGHT_ON_OFF = LOW
END
(STANDBY)
Note:
Blocking for
next startup
to ensure
PSU
properly
discharged
Wait 3000ms
WT61P7 blinks LED2
according to Error Buffer
Pass Error Buffer, Clock Info and
CEC Information to WT61P7
STANDBY due
to Protection?
WT61P7 STANDBYn = LOW
Yes
No
Instruct WT61P7
to go to Standby
MT5382
WT61P7
AUTO-CLOCK
is ON?
No
Yes
SEMI-STANDBY
Start to Obtain Clock Info
from Selected Source
Mute Audio, MUTEn = HIGH
Disable RC/LKB Key
Enable RC/LKB Key
Disable RC/LKB Key
Wakeup Event
Received?
Yes
Disable DC_PROT &
POWER_DOWN INT
Turn On Backlight
BACKLIGHT_ON_OFF = HIGH
Unmute Audio, MUTEn = LOW
Disable RC/LKB Key
Wait for Panel_Off_Time_2 based on
Panel ID in ms (from Panel Flash)
Switch off LVDS Signal
Turn Off LVDS Power,
LCD_PWR_ON = HIGH
PWM_Dimming = 0%
Enable RC/LKB Key
Set Last Status = STANDBY
Display Startup Logo for 1sec
Set Back to Last Channel
Clock
Download
Timeout =
3sec?
No
Yes
No
Clock
Download
Complete?
No
Yes
Set Last Status = ACTIVE
Instruct WT61P7
to turn off LED1
Set LED1 = OFF
Instruct WT61P7
to turn on LED1
Wait for Next Instruction
from MT5382
END
(Back to ON)
Set LED1 = ON
Proceed to
STANDBY?
No
Yes
Note: Estimated running time.
Actual implementation to be verified.
T~200ms
T~700ms
T~1200ms
T~1300ms
H_17740_035.eps
240108
Содержание 32PFL3403D/85
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