BenQ G2220HD - 21.5" LCD Monitor, Service Manual, Page: 5 / 47

5
3. Product Overview
3.1 Power Supply
Items Condition Spec Note
AC Input Voltage range Universal input full range 90~264Vac
AC Input Voltage rating Universal input full range 100~240Vac
AC input frequency range 90~264Vac 47~63Hz
AC input frequency rating 100~240Vac 50~60Hz
100Vac 1.5A(max) AC Input Current
240Vac 0.8A(max)
100Vac,cold star,25°C 40A (max)
Inrush Current
240Vac,cold star,25°C 60A(max)
See Note2
AC-DC power Efficiency
DC output full loading ≥ 75%
Note2. Before each test, the buck capacitors need to be discharged.
Before each test, it must be 10 minutes at least after the latest test.
Hot star not component be damaged.
3.2 Signal Interface
Input Connector Analog : D-sub 15
Video Cable Strain Relief
Equal to twice the weight of the monitor for five
minutes
Video Cable Connector DB-15 Pin out Compliant DDC 2B
Video Signals Video RGB (Analog)
Video Impedance 75 Ohms (Analog)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
DDC 1/2B Compliant with Revision 1.3s
Sync Compatibility Separate Sync / Composite Sync / Sync on Green
Video Compatibility
Shall be compatible with all PC type computers,
Macintosh computers, and after market video cards
3.3 Scan Range
Item Condition Specification
Horizontal Sync polarity: (+) or (-)
24kz~83KHz
Vertical Sync polarity: (+) or (-) 50Hz~76Hz
Out of Range
Sync don’t in the range:
Horizontal: 24kz~83KHz or
Vertical : 50Hz~76Hz
Message “
Out of Range!
” on screen