Service manual

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ViewSonic Corporation Confidential - Do Not Copy PRO8100-1
Lamp Specification
Product Type: Short arc mercury lamp with reflector.
USHIO’s Type: NSH160HO
USHIO’s Lamp Driver Type: PHG201G20UU
Initial Characteristics
Initial Burner Characteristics;
Wattage(W) Lamp Voltage(V) Lamp Current(A) Efficiency((lm/W) Arc Gap(mm)
DC160 70 2.3 57 1.05
Lamp Life
The lamp life represents the average number of hours when the illuminance drops to less than
50% of its initial value under the following conditions with specific optical system. The nominal
lamp life at 160W is (2000) hours. USHIO will continue its lamp life measurement.
♦ The lamp must be operated under the proper temperature condition.
♦ The lamp must be operated on the USHIO’s lamp driver.
♦ On/Off cycle: 2 hours on, 15 minutes off.
♦ Ambient temperature should be room temperature (about 25℃)
♦ Illuminance should be measured on the specific optical system.