ViewSonic VP2000S Manuel de service télécharger pdf (Page 23)

5.1 General.

1. All specifications must be met over line voltage range of 90V

to 264V

50Hz / 60Hz, unless otherwise

specified.

2. Operating temperature range is 0

C to 40

C with a relative humidity of 10% or less to 80%.

3. The monitor must be operational in a usable state within 30 minutes after turn-on.

4. All signal levels are measured assuming termination at the monitor’s input jacks or in its characteristic

impedance.

5. All controls must have excess range (no control may be left at an end stop when proper alignment is

completed).

6. The monitor is not required to meet specs under the following circumstances, but must tolerate without

damage to the LCD or circuits any sequence or combination of: Power on and off, signal on and off,

erratic or incorrect frequency, noisy inputs, any possible combination of unplugging of power or

signal cables, or any setting of user accessible controls. Likewise, the monitor should survive

extended periods of operation with line voltage reduced below the specified minimum.

7. An isolation transformer should be used when performing alignment and tests. Portions of the

power supply board are hot ground. The remaining boards are cold ground.

8. Ambient condition:

8.1 Illumination: In usual inspection of electric performance and mechanical performance, it shall be 150 ~

260lux.

8.2 Environmental noise: Less than 60dB.

8.3 Interference of EMI: The inspection shall be carried out in a place where the set is not disturbed by

excessive external electric waves or magnetic fields.

8.4 Temperature: 24 ± 2

8.5 Humidity: 65 ± 20%.

5. Adjustment Procedure

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Do Not Copy VP2000s

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ViewSonic VP2000S Manuel de service Page 23