Electrical Performance; Standard Testing Conditions; Video Signals - Hitachi 14LD7200 Service Manual

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2 ELECTRICAL PERFORMANCE

All tests must be performed under "standard testing conditions" (item 2.1) unless otherwise
specified

2.1 STANDARD TESTING CONDITIONS

- Warm up time
- AC supply voltage
- Ambient temperature
- Humidity
- Display mode
- Contrast control
- Brightness control
- Input signal
- Picture position and size
- Viewing angle
- Viewing distance
Ambient illumination

2.2 VIDEO SIGNALS

2.2.1 ANALOG RGB VIDEO INPUTS
Level
Polarity
Impedance
Max. dot clock
: >30 min.
: 110V or 230V± 5%, 50± 3 Hz
: 20°C ± 5°C
: 65% ± 20%
: 1024x768@ 60 Hz, all white
: Set to factory preset value, which allows that the
brightest two of 32 linear distributed gray-scales (0~
700mv) can be distinguished.
: Set to maximum value
: 0.7Vpp
: Factory preset value,
90 ° H and V
100 cm for LCD performance,
30 cm for LCD failures
Dark room (< 1 cd/m2)
: 0.7Vpp
: positive
: 75 Ohm
: 80 MHz
5

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