Heat Monitoring And Definition; Smart Power; Non Functional Requirements; Start Up Behavior - Philips BDL4230E/00 Service Manual

92 BDL4230E LCD
Light sensor design has three-steps brightness settings based on Smart Power settings: High, Medium,
Off.
Smart Power Setting
High
Medium
Off
Each step has its own illuminate range according different environment illumination. This technology
makes the use of visual application more friendly and intelligently.

4.8 Heat Monitoring and Definition

This function is for overheating protection with temperature controlled fans, and the temperature limit can
be defined by users
When the Panel Saving\Cooling Fan is set to AUTO in OSD Configuration 1 menu, the temperature sensor
will detect the temperature and do the following actions:
1. If the temperature reaches to 50
decreases to 45
2. If the temperature reaches to 55
o
decrease to 50
3. If the temperature reaches to 60
o
to 55 C, the fan will be turned on in middle speed.
4. If the temperature reaches to 65
temperature decrease to 60

4.9 Smart Power

This function allows you to choose a certain level of power saving condition:
"OFF": to set the system in normal power condition
"MEDIUM": to set the system in medium level power saving status.
"HIGH": to set the system in high level power saving status
1) Audio:
2) Smart Power requirements:
Smart
Power
Level Power
Off (A)W
Low (A)W
Middle (B)W
High (C)W
(A)W: to be defined by supplier for optimal picture quality at Brightness level =50 and Contrast level = 50
(B)W: reduce backlight current such that (A) - (B) = approx 15W
(C)W: reduce backlight current such that (B) - (C) = approc 25W

5. NON FUNCTIONAL REQUIREMENTS

5.1

Start up behavior

LED indication should respond in 1 seconds and picture shows up within 5 seconds when the Display
wakes from standby, or power on with DC switch or cold start.
The first time AC On , power status is in Standby mode.
5.2

Default/Reset Control Values

The default/reset values (out-of-box setting) of the various controls are listed:
Switch
AC Power Switch
Speaker Switch
General Product Specification
Office/meeting room
o
C, the fan will be turned ON in low speed, if the temperature
0o
C then the fan will be turned off
o
C, the fan will be turned on in middle speed, if the temperature
C, the fan will be turned on in low speed.
o
C, the fan will be turned on in max speed, if the temperature decrease
o
C, the OSD warning message will appear on screen, if the
o
C, the OSD message will be turned off.
internal: RL = 8 / max. power 2x5W @ 10%THD
external: RL = 8 / max. power 2x7W @ 10%THD
RS232
DATA[1]
0x00
0x01
0x02
0x03
Default Position
ON
N/A
Illumination (Lux)
Dark Room
Public Place
no difference in power
mode
Display Brightness
50%
75%
100%
OSD
OFF
Middle / Medium
High