Theory Of Operation; Dpms Mode - Hyundai Q17 Technical & Service Manual

Q17 Technical Service Manual

Theory of Operation

1. DC/AC INVERTER
Input voltage :
Input current :
Output current :
Frequency(switching) :
Output power :
On/off control voltage :
2. DC/AC ADATOR
This display device shall maintain the specified per formances in the range de scribed
below
Frequency : 50/60Hz
Voltage : 90 - 264Vac RMS
The following consumption requirments shall be met:
Power Consumption : 45W(max absolut value)
Current consumption : < 1.0 Aac RMS
Output Specification:
output1 : 12V/2.3A
output2 : 5V/2.5A
3. USB Bus-Powered HUB
This Monitor has an integral USB hub in the monitor. The hub has one upstream and
two downstream ports, a controller. The hub shall meet all USB requir ements for this
type of USB BUS Powered hub, including bus power switching to the downstream
ports. Also, this hub fully complies with USB Specification Revision 1.1
4. Audio System
This monitor has a audio system including two micro loudspeakers.
Each of two micro loudspeakers has a 2W(Max) output power.
This system also supports a headphone(earphone) output.
- Auto Signal Input : < 600mVp-p(Max.)
- Auto Amplifiers
2W+2W Amplifier with DC Volume Control (for two micro loudspeakers)
RL=8Ω @THD=10% Vcc=14V (min. 10V, max. 18V)
Dual-Audio Power Amplifier (for a headphone output)
RL=32Ω @THD=10% Vcc=4.5V (min. 1.8V, max. 15V)
- Speaker
Micro Loudspeaker Spec.
Normal impedance 8Ω +/- 15% at 1.0V 1.5KHz
Resonance Freq. 550Hz +/- 110Hz at 1.0V
Freq. Range fo ~ 20KHz
Power Handling Capa. 1.0W / 8Ω (2.83V)

5. DPMS MODE

Signal
Status
H-Sync V-Sync Video
on
Pulse Active
Pulse
No
No
off
Pulse
Pulse
DC 12V
2.0A(Max)
6mArms(TYP)
60KHz(Max)
17W(TYP)
5.0V
Power
Consumption
Blank
Less Than 5W
Recovery
45W
Within 3
--7--
LED
Indicator
Time
Green
-
Orange
Sec