
94MS36 Rev. F2 S/W Ver 2.06
13-9
Lamp Voltage
The lamp voltage measurement can provide useful information for lamp
striking, lamp output, and level switching information. The meter used
to measure can cause different results. We use traditional needle
movement meters in our factory, due to the trigger pulses on the lamp
before striking. The waveforms are not sinusoidal, so different meters
may produce different results. Here is a chart with typical measurements:
Lamp Voltage (Terminals 2 & 3)
Lamp Fan Voltage (Terminals 4 & 5)
Model
Idle
Low
Med.
High
Trig.
Idle/Low
Med.
High
Trig.
AL54 w/L1250
200
200
230
270
500+
60-80
90-120
115-125
115-125
AL54 w/L1252
200
200
230
270
500+
65-90
90-120
115-125
115-125
AL54 w/L1261
210
210
230
270
500+
65-90
90-120
115-125
115-125
AL64 w/L1250
200
200
230
270
500+
55-75
90-120
115-125
115-125
AL64 w/L1261
210
210
230
270
500+
65-90
90-120
115-125
115-125
AL64 w/L1252
200
200
230
270
500+
65-90
90-120
115-125
115-125
AL84 w/L1280
360-380
360-380
380-410
415-445
500+
75-95
90-120
115-125
115-125
AL84 w/L1281
400-430
400-430
425-500
460-530
500+
75-95
90-120
115-125
115-125
AL84 w/L1282
400-430
400-430
425-500
460-530
500+
75-95
90-120
115-125
115-125
AL94 w/L1280
360-380
360-380
380-410
415-445
500+
70-90
90-120
115-125
115-125
AL94 w/L1281
400-430
400-430
425-500
460-530
500+
65-90
90-120
115-125
115-125
AL94 w/L1282
400-430
400-430
425-500
460-530
500+
65-90
90-120
115-125
115-125
Lamp Power Path
The basic path that the power to the lamp takes is almost identical for all
units. The basic path is incoming line, main power relay, ballasts,
capacitors, trigger board, and then the lamp. See the point to point wiring
diagrams for each light source in Section 16.