Chapter 2—Functional Descriptions
2.+24V Standby and Arc Lamp power supplies turn on.
3.When Arc Lamp lights (run voltage sensed by a window comparator in the SPS), SPS pulls /LAMPLIT line low.
4.SCB senses /LAMPLIT low and awaits further instructions.
Electronics only
1.Upon receipt of
2.+24V Standby and Low voltage supplies turn on.
3.SCB senses +5V supply at correct level and enters normal program sequence, lamp can be turned on at any time.
Table
| F | HV |
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| Arc | |
Voltage | a | CRT | SCB | HDB | VDB | VPB | RTG | VAB | Lamp/ | ||
PS | |||||||||||
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| Ignitor | ||
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+5v |
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+5v Stb |
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+6.3v |
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+15v |
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+24v |
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+24v Stb |
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+48v |
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+107v |
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+170v |
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Model 330, 340SC, and 370SC Service Manual |